Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Amasaka, Mitsuo
Narumi, Takamitsu
Nakamura, Takayuki
Sato, Takuya
Abrégé
An orchestrator locates a server in anyone of a plurality of edge clouds on the basis of a plurality of delay differences, respectively corresponding to the plurality of the edge clouds having each delay difference and assumed if the server located in each of the edge clouds, that are each a difference between delay from the server to a first client and delay from the server to a second client, and gives a delay to at least one of the first client and the second client so that the delay from the located server to the first client and the delay from the located server to the second client become the same.
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Nakanishi, Yasuhiko
Shindo, Takahiko
Kanazawa, Shigeru
Chin, Meishin
Hashizume, Yasuaki
Abrégé
To detect deterioration of an SOA and perform feedback control to keep light intensity of output light constant in a configuration in which a DFB laser, an EA modulator, and the SOA are monolithically integrated. A semiconductor optical integrated element includes: a DFB laser that outputs continuous light; an EA modulator that modulates the continuous light; a first multimode interference coupler that inputs the modulated light from a first input port, divides the modulated light, and outputs the divided modulated light from two or more output ports; semiconductor optical amplifiers that are connected to respective output ports of the first multimode interference coupler and amplify each of the divided modulated light; a second multimode interference coupler that has input ports connected to respective outputs of the semiconductor optical amplifiers, multiplexes the amplified modulated light, and outputs the multiplexed modulated light from a first output port; and a monitoring waveguide.
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Urabe, Yuki
Tsuchikawa, Kimio
Yokose, Fumihiro
Uchida, Ryo
Yagi, Sayaka
Abrégé
A classification device (10) acquires an operation log related to operation information, identifies each operation performed by a user using the operation log, and creates a vector of each operation on the basis of a co-occurrence relationship between the identified operations. Then, the classification device (10) calculates a similarity between a predetermined number of operations adjacent to each other in chronological order using the created vector of each operation, determines a division point of the operations using the calculated similarity, and divides a time-series operation into operation sets on the basis of the division point. Then, the classification device (10) classifies the operation sets into classes on the basis of the number of types of operations common to the operation sets.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Okano, Yuki
Kobayashi, Tetsutaro
Murakami, Keizo
Okuda, Tetsuya
Abrégé
A key exchange system according to an embodiment includes: a plurality of terminals that perform key exchange; and a server that performs authentication of each of the terminals and mediation of the key exchange, in which the server includes a nonce generation unit that generates a nonce used when the authentication is performed between the server and the terminal by federation using OpenID Connect, a key generation unit that generates a public key and a secret key of token control encryption, a first transmission unit that transmits the nonce and the public key to the terminal, and a decryption unit that decrypts a ciphertext received from the terminal by using the secret key and a token received from the terminal, and the terminal includes an encryption unit that generates a ciphertext obtained by encrypting predetermined data by using the public key and a token generated from the nonce, a second transmission unit that transmits the ciphertext to the server, and a long-term secret string generation unit that generates a long-term secret string for use in the key exchange, by using the nonce.
H04L 9/06 - Dispositions pour les communications secrètes ou protégées; Protocoles réseaux de sécurité l'appareil de chiffrement utilisant des registres à décalage ou des mémoires pour le codage par blocs, p.ex. système DES
H04L 9/32 - Dispositions pour les communications secrètes ou protégées; Protocoles réseaux de sécurité comprenant des moyens pour vérifier l'identité ou l'autorisation d'un utilisateur du système
5.
DISPLAY CONTROL DEVICE, DISPLAY CONTROL METHOD, AND DISPLAY CONTROL PROGRAM
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Wakasugi, Taisuke
Mori, Tomonori
Tadokoro, Masashi
Kataoka, Akira
Oishi, Haruo
Abrégé
A display control device (10) includes: a first acquisition unit (151a) configured to acquire information regarding an existing UI; an extraction unit (151b) configured to extract a rule set indicating relevance between the existing UI and an extended UI from a predetermined database based on the information regarding the existing UI acquired by the first acquisition unit (151a); a first generation unit (151c) configured to generate rule information of the extended UI based on the rule set extracted by the extraction unit (151b); and a setting unit (152) configured to set display of the extended UI based on the rule information of the extended UI generated by the first generation unit (151c).
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Sato, Sayumi
Uzumaki, Yuya
Kono, Akihiro
Komatsu, Takeshi
Abrégé
A gas phase reduction device for carbon dioxide is a gas phase reduction device for carbon dioxide that exerts a catalytic function by light irradiation to generate oxidation-reduction reaction. The gas phase reduction device includes an oxidation tank in which an aqueous solution is put, a reduction tank to which carbon dioxide is supplied, a semiconductor photoelectrode installed in the aqueous solution, and a porous electrode-supported electrolyte membrane that is a joint body of an electrolyte membrane and a porous reduction electrode, the porous electrode-supported electrolyte membrane being installed between the oxidation tank and the reduction tank with the electrolyte membrane facing the oxidation tank and the porous reduction electrode facing the reduction tank. Voltage between a reference electrode installed in the aqueous solution and a reference electrode installed in contact with the electrolyte membrane is measured by a voltmeter, and a control unit increases voltage between the semiconductor photoelectrode and the porous reduction electrode in accordance with change in voltage between the reference electrodes from an initial value at start of reaction. The control unit includes a solar cell and a constant voltage power supply, and the solar cell is arranged on an extension line of a straight line from a light source toward the semiconductor photoelectrode, and generates power utilizing light emitted to and transmitted through the semiconductor photoelectrode.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Narikawa, Satoshi
Fujiwara, Toshihito
Ono, Hiroya
Abrégé
An object of the present invention is to provide a communication method, a transceiver, a relay, a communication system, and a program capable of performing high-speed communication even in a case where there is an obstacle between two separated points in water.
An object of the present invention is to provide a communication method, a transceiver, a relay, a communication system, and a program capable of performing high-speed communication even in a case where there is an obstacle between two separated points in water.
In this communication method, two points each confirm the other's position by using sound wave communication which is likely to be diffracted as a wave due to a relatively small frequency and a large wavelength. Since the communication method uses optical wireless communication in which straightness is high but high-speed communication is possible, a relay capable of forming a path for communication while avoiding an obstacle is selected from a plurality of relays. In this communication method, signals are transmitted and received by using optical wireless communication using a relay on the path.
G01S 5/18 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de position; Localisation par coordination de plusieurs déterminations de distance utilisant des ondes ultrasonores, sonores ou infrasonores
H04B 10/40 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p.ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p.ex. les communications quantiques Émetteurs-récepteurs
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Jo, Teruo
Nagatani, Munehiko
Nosaka, Hideyuki
Abrégé
A capacitor includes a pair of facing stacked electrodes connected to an electrical wiring from the outside. The stacked electrode includes a plurality of wiring layers and a via layer between the wiring layers. The stacked electrode includes combs and a comb connection portion connected to base ends of the combs. A dielectric is provided between one stacked electrode and the other stacked electrode. The comb of the other stacked electrode is disposed between the combs of the one stacked electrode.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Fukushima, Takeru
Sasaki, Motoharu
Nakahira, Toshiro
Murayama, Daisuke
Moriyama, Takatsune
Abrégé
A wireless communication system comprising a plurality of base station devices including a first base station device and a second base station device, wherein the first base station device connected with a terminal determines whether to continue connection with the terminal or not on a basis of a communication quality requirement of the terminal and a resource that can be provided to the terminal, and the first base station device transmits a control signal instructing connection with the second base station device to the terminal in a case where the first base station device determines not to continue the connection with the terminal.
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Watanabe, Kento
Matsunaga, Kenichi
Abrégé
A sensor system includes a sensor terminal and a sensor accommodating terminal The sensor accommodating terminal includes a time stamp adding unit that acquires a time stamp of a reception time of a packet received from the sensor terminal, a memory that stores the time stamp and a time stamp interval, and a disconnection determination unit. The disconnection determination unit calculates a first variance of a plurality of time stamp intervals, calculates a second variance of the plurality of time stamp intervals newly obtained after calculation of the first variance, calculates a ratio of the second variance to the first variance as an evaluation value, and determines whether a reception interval of the packet is normal or abnormal by equal variance determination of the evaluation value.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Maejima, Sotaro
Tsunoda, Keisuke
Kodama, Midori
Arai, Naoki
Obana, Kazuaki
Abrégé
An estimation device collects sensor data representing a change in a load along a time series as a change in a voltage value from a sensor that generates a voltage when a load applied to an area changes, and estimates a matter related to a measurement target passing through a predetermined area by using sensor data collected from the sensor installed in the predetermined area.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Fukui, Masahiro
Kobayashi, Kazunori
Kamado, Noriyoshi
Sato, Ryotaro
Abrégé
Provided is an acoustic system for a user who uses a seat of an aircraft, an automobile, or the like, which reproduces a sound that cannot be heard by surrounding users without using earphones or headphones. An acoustic system including a speaker system that includes at least one speaker unit pair including a positive speaker unit that emits a sound based on an acoustic signal of a predetermined sound source and a negative speaker unit that emits a sound based on an acoustic signal having an opposite phase to the acoustic signal, in which the speaker unit pair is configured such that a surface of the positive speaker unit and a surface of the negative speaker unit located foremost when viewed from a front direction are one plane perpendicular to a ground plane, and an arrangement of the positive speaker unit and the negative speaker unit when viewed from the front direction is parallel to a direction perpendicular to the ground plane, and is configured such that sounds emitted from the positive speaker unit and the negative speaker unit in a rear direction go around in the front direction.
H04R 1/40 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en combinant plusieurs transducteurs identiques
H04R 5/02 - Dispositions spatiales ou structurelles de haut-parleurs
13.
CAMERA PARAMETER ESTIMATION APPARATUS, CAMERA PARAMETER ESTIMATION METHOD, AND CAMERA PARAMETER ESTIMATION PROGRAM
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Shimizu, Shinya
Kimata, Hideaki
Abrégé
A camera parameter estimating device includes an obtaining unit which obtains time series frames including a plurality of subject images existing in a common field of vision shared by multiple cameras for each of the cameras, a point estimating unit which estimates the coordinates of a joint point determined in the subject image in the time-series frame for each of the subject images, a motion trajectory estimating unit which estimates the trajectory of the joint point between the time-series frames for each of the cameras, an inter-camera correspondence estimating unit which estimates a group of the trajectories between the frames obtained respectively from a pair of the cameras, and a parameter estimating unit which estimates a camera parameter for each of the cameras according to the group of trajectories.
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Miyoshi, Yuki
Hayashi, Yuhei
Morioka, Chiharu
Nishioka, Takeaki
Kamamura, Shohei
Abrégé
A conversion device analyzes information of an input packet using hardware and determines whether to perform predetermined previous stage processing using the hardware. Furthermore, when it is determined to perform the previous stage processing, the conversion device uses the hardware to provide metadata including identification information indicating a group of packets to the packets on the basis of the fixed-length header information of the packets. In addition, the conversion device uses software to generate analysis packets corresponding to the group of packets using the provided metadata.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Iwatani, Junichi
Inoue, Yasuhiko
Asai, Yusuke
Abrégé
Provided is an interference control system for wireless communication suitable for limiting the total amount of interference given to an interfered device to be protected by a large number of interfering devices. An interference control system includes a subscriber database that stores information regarding a position of each interfering device. A registration application (5) including an ID of an interfering device disposed in a carrier network is received from the interfering device. The registration application is received and position information that matches information stored in the subscriber database regarding the ID is set (2), (3), and (6). The position information is transmitted to the control device for registration (6).
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Ishii, Yoko
Nakatani, Momoko
Nakane, Ai
Takayama, Chihiro
Abrégé
A graphic display control device comprising: a data acquisition unit that acquires an utterance content of a speaker as text data; a search information extraction unit that extracts search information to be used for searching, from the text data acquired by the data acquisition unit; a graphic selection unit that selects, from a database, a graphic corresponding to the search information extracted by the search information extraction unit; and an output function unit that performs processing for presenting the graphic selected by the graphic selection unit, on a graphic recording result.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Sato, Hiroshi
Fukutomi, Takaaki
Shinohara, Yusuke
Abrégé
The present invention estimates intention of an utterance more accurately than the related arts. A learning device learns an estimation model on the basis of learning data including an acoustic signal for learning and a label indicating whether or not the acoustic signal has been uttered to a predetermined target. The learning device includes: a feature synchronization unit configured to obtain a post-synchronization feature by synchronizing an acoustic feature obtained from the acoustic signal for learning with a text feature corresponding to the acoustic signal; an utterance intention estimation unit configured to estimate whether or not the acoustic signal has been uttered to the predetermined target by using the post-synchronization feature; and a parameter update unit configured to update a parameter of the estimation model on the basis of the label included in the learning data and an estimation result by the utterance intention estimation unit.
G10L 15/06 - Création de gabarits de référence; Entraînement des systèmes de reconnaissance de la parole, p.ex. adaptation aux caractéristiques de la voix du locuteur
G10L 15/16 - Classement ou recherche de la parole utilisant des réseaux neuronaux artificiels
18.
INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD AND INFORMATION PROCESSING PROGRAM
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Nakatsukasa, Satoshi
Fujiwara, Takayuki
Abrégé
A stream information setting unit (108) sets, with respect to a plurality of information collection object apparatuses, either a first transmission setting of a first data transmission of which a transmission cycle is designated or a second transmission setting of a second data transmission which uses a predetermined transmission cycle. A telemetry data receiving unit (106) receives data from the information collection object apparatuses by the first data transmission executed according to the first transmission setting and the second data transmission executed according to the second transmission setting performed by the stream information setting unit (108). A measuring unit (103) measures a transmission time of data by the first data transmission. A comparing unit (104) determines whether or not the transmission time measured by the measuring unit (103) exceeds the designated transmission cycle. A cycle changing unit (105) extends a transmission cycle of the second data transmission when the comparing unit (104) determines that the transmission time exceeds the transmission cycle.
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Takiguchi, Masato
Notomi, Masaya
Takemura, Naotomo
Shinya, Akihiko
Abrégé
An optical device includes a photonic crystal main unit, an optical waveguide, an active region, an active substance, and a light source. The active region is formed in the optical waveguide and accommodates the liquid active substance formed with a four-level light-emitting material. For example, an accommodating unit formed in the active region is provided, and the active substance is accommodated in the accommodating unit. The active substance can be formed with an aqueous solution of a dye such as rhodamine, for example.
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Fujimoto, Kei
Kaneko, Masashi
Abrégé
Provided is a server delay control device for a server in which an OS having a kernel is deployed. The OS includes: a ring buffer managed by the kernel; and a poll list in which information on a net device of a hardware interrupt from an NIC is registered. The server delay control device is deployed in the server and configured to receive a timer interrupt at predetermined specified intervals and monitors a packet arrival and includes: a packet arrival monitoring part configured to check the presence or absence of a packet in the poll list upon being triggered by the timer interrupt to monitor the poll list; and a packet dequeuer configured to, when a packet has arrived, reference the packet held in the ring buffer, and perform dequeuing to remove the corresponding queue entry from the ring buffer.
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Kamienoo, Kazuma
Takahashi, Ken
Mori, Hiroki
Omachi, Rena
Abrégé
A delay measurement device includes a NW measurement unit that measures a topology, a delay amount of each link, jitter, and a packet loss rate, and causes a NW state holding unit to hold them as NW state information, a link quality calculation unit that calculates the link quality between the end points as a weight on the basis of the NW state information including the topology, the delay amount of each link, the jitter, and the packet loss rate, and a path calculation function unit that calculates a measurement path on the basis of a weighted topology in which the weight of the link quality calculated by the link quality calculation unit is reflected in the topology. The NW measurement unit transmits a measurement packet to a start point and measures the delay amount of a measurement target section of a NW.
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Tateno, Mizuki
Abrégé
When a CRAM error detection unit (12c) detects a one-bit soft error of a CRAM (12b), a failure management unit (16) performs control for coping with a failure in a downstream side communication device (14) with an error notification (ER1) as a trigger. A failure detection sensitivity of a failure detection unit (15) is temporarily increased compared to a steady state. Or an upstream side communication device (11) retransmits an original communication signal (SG1). Or a known test signal is transmitted from the upstream side communication device (11) before retransmission, and the failure is diagnosed on the downstream side, and then the test signal is retransmitted. Alternatively, a signal is processed by two communication paths to select a signal without an error, and an erroneous signal is discarded. When a failure is detected, a device is restarted. It is possible to find a failure in an early stage to prevent a silent failure or to shorten a time until recovery of service or to suppress an occurrence of a failure by taking measures with the detection of a CRAM error as a trigger.
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Nishioka, Takeaki
Morioka, Chiharu
Kamamura, Shohei
Hayashi, Yuhei
Miyoshi, Yuki
Abrégé
A conversion device (10) analyzes an input packet and acquires header information included in the packet. Furthermore, the conversion device (10) classifies packets into one of a plurality of groups on the basis of the acquired header information and set grouping conditions. Subsequently, the conversion device (10) generates packets for analysis on the basis of the processing corresponding to the classified groups.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Ochiai, Tsubasa
Delcroix, Marc
Nakatani, Tomohiro
Ikeshita, Rintaro
Kinoshita, Keisuke
Araki, Shoko
Abrégé
An estimation apparatus 10 is a signal processing apparatus for processing an acoustic signal and estimates an observation signal of a virtual microphone arranged virtually from an input observation signal of a real microphone using a deep learning model having a neural network (NN) 11.
H04R 1/32 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement
25.
INFORMATION ACQUISITION APPARATUS, INFORMATION ACQUISITION METHOD, AND INFORMATION ACQUISITION PROGRAM
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Koya, Hidetaka
Kataoka, Akira
Abrégé
An information acquisition apparatus (100) includes an acquisition unit (121), a classification unit (122), a determination unit (123), and a registration unit (124). The acquisition unit (121) acquires tree information representing information of a system screen by a plurality of nodes having a tree structure. The classification unit (122) classifies the plurality of nodes having a tree structure into an operable component and a label component based on the tree information. The determination unit (123) determines whether the label component indicates a name of the operable component based on a distance between the operable component and the label component. The registration unit (124) registers a correspondence between a text corresponding to the label component and specifying information for specifying the operable component in a case where the determination unit (123) determines that the label component indicates a name of the operable component.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Nukushina, Takahiro
Tyou, Iifan
Nagafuchi, Yukio
Koyama, Takaaki
Abrégé
An analysis device includes processing circuitry configured to acquire, from each network traffic sensor that monitors communication of an Internet of Things (IoT) device, a normal communication model that is used for monitoring the communication and indicates a characteristic of normal communication of the IoT device, cluster a normal communication model group of a same feature among acquired normal communication model groups, calculate a majority cluster that is a cluster having a largest number of normal communication models by using a result of the clustering, and calculate an average model of the normal communication model group belonging to the majority cluster, and notify the network traffic sensor serving as an acquisition source of the normal communication model of attribution information indicating whether or not the normal communication model belongs to the majority cluster and the average model.
H04L 41/16 - Dispositions pour la maintenance, l’administration ou la gestion des réseaux de commutation de données, p.ex. des réseaux de commutation de paquets en utilisant l'apprentissage automatique ou l'intelligence artificielle
H04L 43/0876 - Utilisation du réseau, p.ex. volume de charge ou niveau de congestion
27.
SETTING CHANGING APPARATUS, SETTING CHANGING METHOD AND PROGRAM
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Miyamoto, Katsuma
Abrégé
A setting changing apparatus includes a memory and a processor configured to determine whether software of a plurality of network devices, which are related to a redundant configuration, is being updated when an instruction of setting change for the plurality of network devices is input; and wait, when the software of any of the network devices is being updated, until the update of the software of the network device is completed and execute the setting change for the network device.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Yazawa, Go
Kubo, Takahiro
Yasuhara, Natsuki
Yoshihara, Shinichi
Abrégé
An information processing device in a communication apparatus performs a management process of traffic flow management information for transfer of data including a plurality of frames from a transmission source terminal to a transmission destination terminal. Where new traffic flow management information of a traffic flow associated with a data frame identified by an identification unit on the basis of identification information included in the received data frame is recorded in the communication apparatus, a recording unit determines whether the number of pieces of traffic flow management information already recorded is equal to or more than a threshold value, and calculates and records a scheduled release time of the traffic flow management information according to a determination result.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Fukui, Masahiro
Kobayashi, Kazunori
Kamado, Noriyoshi
Sato, Ryotaro
Abrégé
There is provided an acoustic system for a user who uses a seat of an airplane, an automobile, or the like, which reproduces a sound that cannot be heard by surrounding users without using earphones or headphones. An acoustic system including a speaker system including one speaker unit that emits a sound based on an acoustic signal of a predetermined sound source, in which a sound emitted from the speaker unit is hearable in a region to be audible near the speaker unit, and by a sound emitted from the speaker unit in a back surface direction coming around to a front surface direction, the sound emitted from the speaker unit in the front surface direction and the sound emitted from the speaker unit in the back surface direction cancel each other in a region in the front surface direction far from the speaker unit.
H04R 1/32 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement
30.
SOCIAL VALUE EVALUATION APPARATUS, SOCIAL VALUE EVALUATION METHOD AND PROGRAM
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Furutani, Takashi
Takeuchi, Akira
Tanaka, Yuriko
Abrégé
Provided is a social value evaluation device, including:
a feature value generation unit configured to generate a feature value from text information on social value evaluation;
an input unit configured to input text information on an evaluation target;
an evaluation unit configured to evaluate a relevance between the feature value and the text information input by the input unit; and
an output unit configured to output an evaluation result from the evaluation unit.
G06Q 50/00 - Systèmes ou procédés spécialement adaptés à un secteur particulier d’activité économique, p.ex. aux services d’utilité publique ou au tourisme
G06F 40/40 - Traitement ou traduction du langage naturel
31.
MULTI-CENTER NON-REFLECTIVE TERMINATION AND OPTICAL LINE TEST METHOD
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Enomoto, Yoshitaka
Abrégé
An object of the present invention is to provide a multicore non-reflective terminal portion having a small influence of reflected light on an optical transmission system and having a small number of parts, and an optical path testing method using the same.
An object of the present invention is to provide a multicore non-reflective terminal portion having a small influence of reflected light on an optical transmission system and having a small number of parts, and an optical path testing method using the same.
A multicore non-reflective terminal portion 70 according to the present invention includes: 2n (n is a natural number) optical fibers 71 each having a vertically polished end face on one end side and an angle-polished end face on the other end side, a 2n-core MT connector 72 that collects the 2n optical fibers 71 and is attached to the one end side of the optical fibers 71, and n-core MT connectors (73a, 73b) attached to the other end side of the optical fibers 71 for each of two groups of the 2n optical fibers 71.
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Sato, Ryohei
Nakatani, Yuichi
Abrégé
A resource allocation device includes: a request receiving unit that receives a request to allocate a state management unit for sharing a state for each group composed of a plurality of user terminals within a group, to any of a plurality of DCs deployed in a distributed cloud environment; and an allocation calculation unit that calculates an allocation cost of allocating the state management unit to each DC by using an allocation index corresponding to a requirement requested by the group, and determines a DC to which the state management unit is allocated, in accordance with the allocation cost.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Nakatani, Tomohiro
Ikeshita, Rintaro
Kinoshita, Keisuke
Sawada, Hiroshi
Araki, Shoko
Abrégé
An acoustic signal enhancement device includes: a spatiotemporal covariance matrix estimation unit 2 configured to estimate spatiotemporal covariance matrices Rf(j) and Pf(j); a reverberation suppression unit 3 configured to obtain a reverberation suppression filter Gf(j) of the sound source j using the estimated spatiotemporal covariance matrices Rf(j) and Pf(j) for each sound source j and to generate a reverberation suppression signal vector using the obtained reverberation suppression filter Gf(j) and the observation signal vector Xt,f; a sound source separation unit 4 configured to obtain an enhanced sound yt,f(j) of the sound source j and power of the sound source j using the generated reverberation suppression signal vector for each sound source j (where 1≤j≤J) corresponding to the target sound; and a control unit 5 configured to perform control such that processes of these units are repeatedly performed.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Uchibori, Daisuke
Hamano, Yujin
Watanabe, Kazuaki
Nakagawa, Masafumi
Aratake, Atsushi
Abrégé
A propeller guard 2 includes: a propeller guard body 10 configured to surround a propeller 30 of a flight vehicle 20; and a rotating member 40 provided on a side surface of the propeller guard body 10, in which the rotating member 40 is able to rotate around at least a horizontal base axis in a case where the rotating member 40 is in contact with a vertical plane located outside the propeller guard body 10.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Sugiura, Ryosuke
Moriya, Takehiro
Kamamoto, Yutaka
Abrégé
There is provided a technology that improves, in a case where there is a sound signal obtained from a different code that is different from a code from which a decoded sound signal is obtained and that is derived from the same sound signal, the decoded sound signal by using the sound signal obtained from the different code. A signal (hereinafter, referred to as a decoded sound common signal) obtained by downmixing a decoded sound signal of each channel is subjected to signal purification using a monaural decoded sound signal to thereby generate a purified common signal, and in each channel, a signal obtained by upmixing the decoded sound common signal is subtracted from the decoded sound signal and a signal obtained by upmixing the purified common signal is added thereto, to thereby generate a purified decoded sound signal.
G10L 19/008 - Codage ou décodage du signal audio multi-canal utilisant la corrélation inter-canaux pour réduire la redondance, p.ex. stéréo combinée, codage d’intensité ou matriçage
G10L 21/043 - Compression ou expansion temporelles par changement de la vitesse
H04S 7/00 - Dispositions pour l'indication; Dispositions pour la commande, p.ex. pour la commande de l'équilibrage
36.
WIRELESS COMMUNICATION MANAGEMENT APPARATUS, WIRELESS COMMUNICATION MANAGEMENT METHOD, AND WIRELESS COMMUNICATION MANAGEMENT PROGRAM
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Shinohara, Shoko
Inoue, Yasuhiko
Asai, Yusuke
Takatori, Yasushi
Abrégé
A wireless communication management apparatus (100) includes a correction unit (1131), an evaluation unit (1132), and a determination unit (1133). The correction unit (1131) corrects, on the basis of a characteristic of each terminal, an error rate in wireless communication between a base station and the terminal based on wireless environment information collected from one or more terminals configured to wirelessly communicate with the base station. The evaluation unit (1132) evaluates the corrected error rate. The determination unit (1133) determines a modulation/demodulation scheme for each terminal on the basis of the evaluation result of the evaluation unit.
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Hayashi, Yuhei
Kamamura, Shohei
Nakatsukasa, Satoshi
Takei, Yuki
Morioka, Chiharu
Nishioka, Takeaki
Miyoshi, Yuki
Abrégé
An extraction unit extracts predetermined information from an outer header and an inner header of a tunneled packet passing through a network device in which congestion has occurred. An evaluation unit evaluates an order in which fine grain flows in a tunnel subdivided with reference to the extracted predetermined information are subject to TE, based on attribute information of the fine grain flows.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Okamoto, Tatsuya
Iida, Daisuke
Koshikiya, Yusuke
Honda, Nazuki
Abrégé
An object of the present disclosure is to provide a method for remotely identifying a utility pole position and estimating a state of an overhead optical fiber cable.
An object of the present disclosure is to provide a method for remotely identifying a utility pole position and estimating a state of an overhead optical fiber cable.
The present disclosure is a method for identifying a utility pole position including identifying a boundary region of a vibration distribution as a utility pole position, from a vibration distribution pattern obtained by measuring strain amounts with respect to distances of an optical fiber by an optical fiber vibration distribution measuring method at each time and sequentially stacking the strain amounts.
G01H 9/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores en utilisant des moyens sensibles aux radiations, p.ex. des moyens optiques
G01D 5/353 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensible; Moyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminé; Transducteurs non spécialement adaptés à une variable particulière utilisant des moyens optiques, c. à d. utilisant de la lumière infrarouge, visible ou ultraviolette avec atténuation ou obturation complète ou partielle des rayons lumineux les rayons lumineux étant détectés par des cellules photo-électriques en modifiant les caractéristiques de transmission d'une fibre optique
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Nakamura, Ken
Uzawa, Hiroyuki
Kobayashi, Daisuke
Hatta, Saki
Omori, Yuya
Yoshida, Shuhei
Abrégé
A calculation unit (22) sets each frame, of a moving image including a plurality of frames, as a target frame, calculates a motion vector with reference to a reference frame over an entirety of the target frames, and calculates an index indicating a magnitude of change between a key frame and the target frame, which is represented by using the motion vector, a judgement unit (25) judges whether or not the calculated index is equal to or greater than a predetermined threshold value, a first detection unit (27) detects a region indicating an object from the target frame by using an object detection model in a case in which the index is equal to greater than the threshold value, a second detection unit (28) detects a region on the target frame, which is obtained by correcting a position of a region detected in the reference frame by using the motion vector in a case in which the index is less than the threshold value, and an output unit (30) outputs information of the region detected by the first detection unit (27) and information of the region detected by the second detection unit (28).
G06T 7/246 - Analyse du mouvement utilisant des procédés basés sur les caractéristiques, p.ex. le suivi des coins ou des segments
G06V 10/82 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant les réseaux neuronaux
G06V 20/40 - RECONNAISSANCE OU COMPRÉHENSION D’IMAGES OU DE VIDÉOS Éléments spécifiques à la scène dans le contenu vidéo
40.
COHERENT OPTICAL MEASURING DEVICE, OPTICAL LINE TEST SYSTEM AND METHOD
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Iida, Daisuke
Enomoto, Yoshitaka
Kito, Chihiro
Okamoto, Tatsuya
Koshikiya, Yusuke
Wakisaka, Yoshifumi
Honda, Nazuki
Abrégé
The present disclosure is an optical line test system that detects a distribution of loss points of an optical line in a longitudinal direction, using a coherent light measurement device, applies vibration to facility disposed on a path of the optical line, detects a vibration point of the optical line in a longitudinal direction upon applying the vibration, using the coherent light measurement device, and identifies the loss point based on correspondence between the detected loss point and vibration point.
G01H 9/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores en utilisant des moyens sensibles aux radiations, p.ex. des moyens optiques
41.
USB TRANSMISSION SYSTEM, EQUIPMENT, METHOD, AND PROGRAM
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Fukui, Tatsuya
Fujiwara, Toshihito
Ono, Hiroya
Shiina, Ryota
Ikeda, Tomohiko
Abrégé
An object of the present disclosure is to enable data collection from a plurality of USB devices installed at remote locations.
An object of the present disclosure is to enable data collection from a plurality of USB devices installed at remote locations.
The present disclosure is a USB transmission system including: a device-side transmitter/receiver configured to transmit/receive data to/from a USB device; and a host-side transmitter/receiver configured to transmit/receive data to/from a USB host, in which each of the device-side transmitter/receiver and the host-side transmitter/receiver includes a data transmission/reception unit configured to transmit/receive a packet of a USB protocol layer via a data network, and the host-side transmitter/receiver includes a hub configured to transfer data to be transmitted/received by the data transmission/reception unit included in the host-side transmitter/receiver to the USB host.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Narikawa, Satoshi
Fujiwara, Toshihito
Ono, Hiroya
Abrégé
An object of the present invention is to provide a communication method, a transceiver, a relay, a communication system, and a program capable of performing high-speed communication even in a case where there is an obstacle between two separated points in water.
An object of the present invention is to provide a communication method, a transceiver, a relay, a communication system, and a program capable of performing high-speed communication even in a case where there is an obstacle between two separated points in water.
In this communication method, two points each confirm the other's position by using sound wave communication which is likely to be diffracted as a wave due to a relatively small frequency and a large wavelength. Since the communication method uses optical wireless communication in which straightness is high but high-speed communication is possible, a path for communication while avoiding an obstacle via a relay is calculated. In the communication method, the relay is guided and moved to an appropriate place according to the calculated path, and a signal is transmitted and received by using optical wireless communication using the relay that has moved to an appropriate place.
H04B 10/40 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p.ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p.ex. les communications quantiques Émetteurs-récepteurs
43.
MODEL LEARNING DEVICE, DIRECTION OF ARRIVAL ESTIMATION DEVICE, MODEL LEARNING METHOD, DIRECTION OF ARRIVAL ESTIMATION METHOD, AND PROGRAM
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Yasuda, Masahiro
Abrégé
Included are: a vector estimation unit that receives a real number spectrogram and an acoustic intensity vector as inputs and outputs a reverberation component of an acoustic intensity vector; an angle mask extraction unit that receives the acoustic intensity vector as an input and extracts an angle mask; a time-frequency mask estimation unit that receives the real number spectrogram, the acoustic intensity vector from which the reverberation component has been subtracted, and the angle mask as inputs, and outputs a time-frequency mask for noise suppression and sound source separation; a first sound source direction-of-arrival derivation unit that derives a sound source direction-of-arrival on the basis of an acoustic intensity vector obtained by applying the time-frequency mask to the acoustic intensity vector from which the reverberation component has been subtracted; a second sound source direction-of-arrival derivation unit that derives a sound source direction-of-arrival on the basis of an acoustic intensity vector obtained by applying the angle mask to the acoustic intensity vector from which the reverberation component has been subtracted; and a cost function calculation unit that calculates a cost function of a model on the basis of the derived sound source direction-of-arrival and the label, and updates a parameter of the model.
G01S 3/808 - Systèmes pour déterminer une direction ou une déviation par rapport à une direction prédéterminée utilisant des transducteurs espacés et mesurant la différence de phase ou de temps entre les signaux provenant de ces transducteurs, c. à d. systèmes à différence de parcours
G10K 11/175 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets d'interférence; Masquage du son
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Kamamura, Shohei
Hayashi, Yuhei
Miyoshi, Yuki
Nishioka, Takeaki
Morioka, Chiharu
Nakatsukasa, Satoshi
Takei, Yuki
Abrégé
A design apparatus optimizes, with a first granularity (for example, a real number solution), a traffic volume allocated to each of links between adjacent nodes included in a network. In addition, the design apparatus calculates an approximation solution obtained by approximating, with a second granularity (for example, an integer solution), the traffic volume having been optimized with the first granularity. Furthermore, the design apparatus maps logical paths to each of routes constituted by the links in accordance with the approximated traffic volume.
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Yamamoto, Taizo
Moriya, Takaaki
Nishio, Manabu
Miyoshi, Yu
Abrégé
A device includes: a data set including multiple sets in which two pieces of time-series data are respectively recorded; an analysis unit that obtains evaluation values representing a relationship between the two pieces by different analysis methods for each set; a combination extraction unit that extracts combinations of the sets having different trends in change in the evaluation values associated with the analysis methods; a grouping unit that classifies the analysis methods according to the evaluation values for each combination, and records results associated with the sets; an inquiry unit that presents the time-series data of each set to a user, and inquires which sets have similar time-series data; a scoring unit that adds a score of the analysis method belonging to the group having a better evaluation value for the set determined to be more similar; and a selection unit that repeats each process and selects an analysis method.
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Matsui, Takashi
Nakajima, Kazuhide
Abrégé
It is an object of the present invention to provide a multicore optical fiber, a design method for the multicore optical fiber and an optical transmission method using the multicore optical fiber including four cores having a standard cladding diameter of 125±1 μm for an existing single mode optical fiber covering several thousands of kilometers of transmission. The multicore optical fiber according to the present invention disposes two-stage claddings with different refractive indices around each core, and designates as a predetermined range, a core radius a1, a radius a2 of a first cladding region surrounding each core, specific refractive index Δ1 relative to the core of the first cladding region and a specific refractive index Δ2 relative to the core of a second cladding region including four cores and the first cladding region.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Shinohara, Shoko
Inoue, Yasuhiko
Kishida, Akira
Kudo, Riichi
Mizoguchi, Masato
Abrégé
A predetermined STA includes a station information collection unit collecting from the STA itself and other STAs station information used for selection of STAs performing simultaneous transmission and for control of the simultaneous transmission, and a simultaneous-transmission request unit knowing occurrence of a QoS data frame based on the station information and transmitting a request frame requesting the simultaneous transmission to an AP. The AP includes a station information collection unit; a simultaneous-transmission determination unit selecting a combination of the STAs performing the simultaneous transmission based on the station information by reception of the request frame; and a trigger transmission unit transmitting to each of the STAs performing the simultaneous transmission a trigger frame instructing to performs the simultaneous transmission and including information necessary for controlling the simultaneous transmission. Each of the STAs designated by the trigger frame is configured to simultaneously transmit the wireless frames to the AP.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Kobayashi, Gen
Ando, Kazuya
Waki, Masaki
Kaneko, Ryoichi
Tanioka, Hiroaki
Abrégé
The present invention has an object of providing an arithmetic apparatus, a facility management method, and a program that make it possible to acquire current tension applied to outdoor structures in a short period of time and make a bearing determination. The arithmetic apparatus according to the present invention calculates the dip degree of a cable and a distance between poles from the 3D model data of the cable according to Math. C1 and calculates the tension of each cable between the poles from the dip degree, the distance between the poles, and the weight of the cable per unit length according to Math. C2 (when no wind blows) or Math. C4 (when wind blows). Further, the arithmetic apparatus according to the present invention calculates a combined load obtained by converting the tension and the load of the accessory of the poles into an arbitrary position on the poles according to Math. C3.
G01L 5/04 - Appareils ou procédés pour la mesure des forces, du travail, de la puissance mécanique ou du couple, spécialement adaptés à des fins spécifiques pour la mesure de la tension dans les éléments flexibles, p.ex. dans les cordages, les câbles, les fils métalliques, les filaments, les courroies ou les bandes
H02G 1/02 - Méthodes ou appareils spécialement adaptés à l'installation, entretien, réparation, ou démontage des câbles ou lignes électriques pour lignes ou câbles aériens
49.
Circuit, Device and Method for Optical Characteristic Inspection
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Maeda, Yoshiho
Miura, Toru
Fukuda, Hiroshi
Abrégé
An optical characteristic inspection circuit includes, in order, an optical input element, an optical splitter circuit including a resistor, a first optical circuit to be inspected connected to one output of the optical splitter circuit, a second optical circuit to be inspected connected to another output of the optical splitter circuit, and a photodetector that detects an intensity of light transmitted through the first optical circuit to be inspected and an intensity of light transmitted through the second optical circuit to be inspected. Therefore, the present invention can provide an optical characteristic inspection circuit capable of reducing man-hours required for optical characteristic inspection.
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Takei, Yuki
Nakatsukasa, Satoshi
Watanabe, Yuta
Abrégé
When a controller receives a tunnel setting order from a high-order Ops (operation system), the controller divides the setting order into a first setting processing step related to setting registration of a user, a second setting processing step related to a transfer surface of the tunnel, a third setting processing step related to an interface of each transfer apparatus used for a tunnel of the transfer surface, and a fourth setting processing step related to a parameter to be set to the interface and stores the setting processing steps in a setting management DB. Subsequently, the controller creates a configuration for executing each setting processing step indicated in the tunnel setting order by reflecting information indicated in each divided setting processing step to a template of each setting processing step. In addition, the controller inputs the created configuration to a transfer apparatus at a setting destination of the tunnel.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Shiina, Ryota
Fukui, Tatsuya
Narikawa, Satoshi
Minami, Katsuya
Ikeda, Satoshi
Saruwatari, Shunsuke
Watanabe, Takashi
Kinoshita, Kazuhiko
Abrégé
An object is to provide a communication system in which there are no restrictions on a communicable area and it is not necessary to install communication software on a wireless device. A communication system according to the present invention is configured so that the functions of a wireless access point are separated into a front-end unit on a wireless terminal side and a back-end side on the Internet side, radio signal processing functions supporting a wireless scheme of the wireless terminal are deployed only on the back end, and only relatively simple processing functions such as E/O conversion are deployed on the front end near the wireless terminal 311.
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Mizunuma, Mamoru
Mineta, Shingo
Oki, Shota
Oka, Soichi
Abrégé
An anchor is buried in the ground near a place where a utility pole is installed. A guy wire is connected to the utility pole. A guy wire rod couples the anchor and the guy wire. An electrode is buried in the ground near a place where the anchor is buried. A power supply supplies an anti-corrosion current with an underground portion of the guy wire rod and the anchor as a cathode and the electrode as an anode. The power supply includes a photovoltaic cell.
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Kakinuma, Hirokazu
Yamada, Shota
Nagata, Hidenobu
Hidaka, Kota
Abrégé
A video processing device includes a foreground region estimation unit that determines whether a pixel of an input image is a foreground or a background, and a blinking correction unit that determines, for a target pixel on which a foreground and a background have been switched, whether switching between the foreground and the background is a color change in the foreground or in the background by using a lookup table capable of determining whether switching is in the foreground or in the background from a temporal change of a pixel value, and corrects a result of determination as to whether it is the foreground or the background that has been performed for the target pixel in a case where the switching between the foreground and the background is the color change in the foreground or in the background.
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Miyata, Masashi
Sogabe, Yoko
Kobayashi, Fumihide
Sugimoto, Shiori
Nemoto, Naru
Hashimoto, Toshikazu
Abrégé
An imaging device includes an optical element including a transparent substrate and a plurality of structures disposed on or in the transparent substrate in a plane direction of the transparent substrate, an imaging sensor in which a plurality of pixels each including a photoelectric conversion element are arranged, and a signal processing unit configured to generate an image signal based on an electric signal obtained from the imaging sensor, wherein the optical element outputs light with a different point spread function for each wavelength to form, on the imaging sensor, an image in which the point spread function of each wavelength is convoluted, the plurality of structures have the same height in a side view, and the signal processing unit reconstructs an image in which the point spread function of each wavelength is convoluted.
H04N 23/12 - Caméras ou modules de caméras comprenant des capteurs d'images électroniques; Leur commande pour générer des signaux d'image à partir de différentes longueurs d'onde avec un seul capteur
H04N 23/45 - Caméras ou modules de caméras comprenant des capteurs d'images électroniques; Leur commande pour générer des signaux d'image à partir de plusieurs capteurs d'image de type différent ou fonctionnant dans des modes différents, p. ex. avec un capteur CMOS pour les images en mouvement en combinaison avec un dispositif à couplage de charge [CCD]
H04N 23/55 - Pièces optiques spécialement adaptées aux capteurs d'images électroniques; Leur montage
H04N 23/56 - Caméras ou modules de caméras comprenant des capteurs d'images électroniques; Leur commande munis de moyens d'éclairage
H04N 23/84 - Chaînes de traitement de la caméra; Leurs composants pour le traitement de signaux de couleur
55.
WIRELESS COMMUNICATION MONITORING SYSTEM, WIRELESS COMMUNICATION MONITORING METHOD, AND MONITORING DEVICE
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Matsushita, Akira
Nishino, Mitsuru
Matsui, Munehiro
Shima, Masaki
Harada, Koichi
Shibayama, Hiroki
Yamashita, Fumihiro
Abrégé
A wireless communication monitoring system for monitoring a hardware failure of a wireless communication unit of a wireless communication device using a remote monitoring control device, in which the wireless communication device transmits or receives a predetermined radio signal to or from a monitoring device added or attached to the host device to perform a life and death check for checking an operation, and the remote monitoring control device detects a hardware failure of the wireless communication unit of the wireless communication device on the basis of a result of the life and death check received from the wireless communication device. This makes it possible to detect a failure that cannot be detected from information obtained from a device state request to a wireless communication device of the related art.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Takahashi, Satoshi
Morita, Tetsushi
Takino, Osamu
Abrégé
To calculate PageRank with high accuracy using transaction data held by a plurality of data sources as input and keeping the transaction data of each data source secret. A data source apparatus (1) calculates a transaction rate for each combination of transaction entities (S12). The data source apparatus (1) encrypts the transaction rate and transmits the encrypted transaction rate to each secure computation apparatus (2) (S13). Each secure computation apparatus (2) receives a ciphertext of the transaction rate from a plurality of data source apparatuses (1) (S21). The secure computation apparatus (2) securely calculates a ciphertext which becomes, when decrypted, PageRank of the computational objective transaction entity by using the ciphertext of the transaction rate related to the computational objective transaction entity and the ciphertext of the PageRank of a transaction counterpart (S22).
G09C 1/00 - Appareils ou méthodes au moyen desquels une suite donnée de signes, p.ex. un texte intelligible, est transformée en une suite de signes inintelligibles en transposant les signes ou groupes de signes ou en les remplaçant par d'autres suivant un systèm
57.
IMAGE SYNTHESIS APPARATUS AND IMAGE SYNTHESIS METHOD
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Ono, Hiroya
Fujiwara, Toshihito
Fukui, Tatsuya
Abrégé
An object of the present disclosure is to reduce a delay time from input of a plurality of videos to output of combined videos.
An object of the present disclosure is to reduce a delay time from input of a plurality of videos to output of combined videos.
The present disclosure is a video combining device detecting a time deviation between a timing of a frame of each video and a predetermined timing when videos from a plurality of cameras are combined into one screen, giving an instruction for an imaging frame rate to the cameras such that the time deviation is reduced, and combining the videos from the plurality of cameras into one screen and outputting the combined videos.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Takeshita, Erina
Kosugi, Tomoya
Yamada, Yuki
Abrégé
A band calculation device (1) according to the present disclosure, in the band calculation device (1) which calculates a band of the link (L) of a relay network (NWR) which is constituted by nodes (N) and links (L) and which relays information transmitted and received between a plurality of communication bases, includes an input unit (21) that receives an input of topology information indicating ports (P) of nodes (N), connection destination ports of the ports (P), and links, respectively, path information indicating primary paths that relay the information when a failure does not occur, paths including backup paths that relay the information when the failure occurs in the primary path, and via transmission ports that are the ports (P) for transmitting the information in the paths, respectively, and traffic information indicating the port (P) and traffic statistic value of the port (P), respectively, and a calculation unit (22) that calculates a band of the link (L) on the basis of the topology information, the path information and the traffic information.
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Osanai, Haruka
Kanemaru, Sho
Takahashi, Kensuke
Toyoshima, Tsuyoshi
Abrégé
A sharing system includes an operation channel of a block chain that shares operation data including information on a construction failure of a resource used in a service provided to a customer among a plurality of nodes, a provision channel of the block chain for sharing provision data used for providing information on a predetermined construction failure for the resource to the customer among a plurality of nodes, a monitoring unit that participates in the operation channel and the provision channel and monitors for construction failures of the resource, a maintenance node including an update unit configured to update a detection state of construction failures in the provision data when detecting update of the state of the construction failure related to the provision channel to be participated, and a provision node that participates in the provision channel and includes a notification unit.
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Toda, Takato
Kimura, Nobuhiro
Mihara, Kotaro
Abrégé
A call control system includes a management device (30) which manages one or more virtual machines (10) operating on a virtualization platform. The virtual machine (10) includes a volume (12) in which an OS, an MW, and an APL which are not updated in operation are installed, a volume (13) in which data which is updated in operation is arranged, and a recovery unit (11) which transmits an image acquisition request for the volume (13) to the management device (30). The management device (30) includes a management unit (31) which creates the virtual machine (10) by arranging an image file including an OS, an MW, and an APL to the volume (12) and arranging an image file including data which is updated while the virtual machine (10) is operating to the volume (13) and a backup unit (32) which backs up the volume (13) as an image file in response to an image acquisition request from the virtual machine (10). The recovery unit (11) expands an initialization range step by step when a software failure occurs, restarts the software, and transmits a volume creation request to the management device (30) when the initialization range reaches a predetermined stage. The backup unit (32) creates a new volume (13) using the image file in response to the volume creation request. The recovery unit (11) replaces the volume (13) with a new volume (13) created in response to the volume creation request.
G06F 11/14 - Détection ou correction d'erreur dans les données par redondance dans les opérations, p.ex. en utilisant différentes séquences d'opérations aboutissant au même résultat
G06F 9/455 - Dispositions pour exécuter des programmes spécifiques Émulation; Interprétation; Simulation de logiciel, p.ex. virtualisation ou émulation des moteurs d’exécution d’applications ou de systèmes d’exploitation
61.
VOLTAGE-CONTROLLED OSCILLATOR AND BIAS GENERATION CIRCUIT
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Jo, Teruo
Nagatani, Munehiko
Nosaka, Hideyuki
Abrégé
A voltage-controlled oscillator includes a first unit cell, a second unit cell that is connected in parallel to the first unit cell via transmission lines, a compensation unit cell that is connected in parallel with the first unit cell and the second unit cell between the first unit cell and the second unit cell, and an input termination resistor that is connected to a power supply voltage terminal of each of the first unit cell, the second unit cell, and the compensation unit cell. Symmetrical voltages are supplied to the first unit cell and the second unit cell, and the compensation unit cell compensates for a gain by the first unit cell or the second unit cell.
H03B 5/24 - Elément déterminant la fréquence comportant résistance, et soit capacité, soit inductance, p.ex. oscillateur à glissement de phase l'élément actif de l'amplificateur étant un dispositif à semi-conducteurs
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Muto, Miwa
Matsuzaki, Hideaki
Abrégé
A wiring board includes a dielectric substrate, a ground layer disposed on one surface of the dielectric substrate, a first conductor line and a first ground plane that are disposed apart from each other on the other surface opposing the one surface of the dielectric substrate, and a second conductor line disposed immediately below the first ground plane in the dielectric substrate.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Nozue, Haruhisa
Suzuki, Satoshi
Kanai, Shunsuke
Akashi, Kazuaki
Murata, Naomi
Asai, Fumika
Abrégé
A rule generation device according to an embodiment includes: a database in which, for each fault, fault factor information including a fault factor part and a fault factor, fault events that occur due to this fault, a rule ID associated with a rule including a condition part and a result part are registered in association with one another; an importance degree determination unit determining, when fault events of a new fault that is a newly occurred fault are registered with the database, degrees of importance of the fault events of the new fault based on at least one of values calculated through statistical processing or analytical processing for information other than the fault events or overall information about the fault events, which are registered with the database; and a rule generation unit generating a rule for the new fault based on the degrees of importance.
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Take, Naoki
Kato, Yoshifumi
Otani, Miwaka
Saito, Kiyotaka
Kondo, Satoshi
Miyoshi, Yu
Abrégé
An API adapter generation device include a conversion rule calculation unit (16) configured to acquire a data model of an orchestrator (210) and an API specification to be managed and perform schema matching on the basis of a data schema of the orchestrator and a data schema of the API specification to calculate a model conversion rule, a call logic unit generation unit (19) configured to rewrite a source code of an API call logic unit 232 describing an API adapter execution logic on the basis of the model conversion rule, and an API adapter generation unit (21) configured to generate an API adapter to be managed on the basis of the API call logic unit in which the source code is rewritten.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Okuda, Tetsuya
Chida, Koji
Abrégé
An information processing apparatus includes a secure area configured to execute a program in secret, and a security chip. The secure area conceals information related to the program, and requests the security chip to provide a blind signature with respect to the concealed information obtained by the concealing. The security chip calculates the blind signature and returns the blind signature to the secure area. The secure area acquires a signature with respect to the information related to the program from the blind signature.
H04L 9/32 - Dispositions pour les communications secrètes ou protégées; Protocoles réseaux de sécurité comprenant des moyens pour vérifier l'identité ou l'autorisation d'un utilisateur du système
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Fukada, Kenta
Inoue, Suzuyo
Seyama, Michiko
Abrégé
An embodiment includes a bioelectrode including a hydrogel film, a conductive film, and a protective film. The conductive film is formed on one surface of the hydrogel film, and the protective film is formed on the other surface of the hydrogel film. The hydrogel film is comprises a mixture of a first material and a second material and is compatible with a living body, the first material configured to cause a sol-gel change at a temperature within a predetermined range around a body temperature of the living body and being compatible with the living body, the second material configured to not cause a sol-gel change at the temperature and being compatible with the living body. The protective film is provided to suppress the infiltration of water into the hydrogel film. The protective film can be made of a waterproof material or a water-repellent material.
A61B 5/263 - Détection, mesure ou enregistrement de signaux bioélectriques ou biomagnétiques du corps ou de parties de celui-ci Électrodes bioélectriques à cet effet caractérisées par les matériaux des électrodes
A61B 5/277 - Détection, mesure ou enregistrement de signaux bioélectriques ou biomagnétiques du corps ou de parties de celui-ci Électrodes bioélectriques à cet effet Électrodes capacitives
67.
INFORMATION PROCESSING APPARATUS, ANALYSIS METHOD AND PROGRAM
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Matsuo, Yoichi
Yamagishi, Kazuhisa
Abrégé
An information processing apparatus including: an experience quality estimation unit that estimates an experience quality value by replacing a plurality of index values included in viewing history data of an image with an index value corresponding to a case other than any one of a plurality of predetermined bit rates; a contribution degree calculation unit that calculates a contribution degree of each bit rate included in the plurality of bit rates to an experience quality value on the basis of the estimated experience quality value; and a contribution degree output unit that outputs information indicating the contribution degree.
H04N 21/258 - Gestion de données liées aux clients ou aux utilisateurs finaux, p.ex. gestion des capacités des clients, préférences ou données démographiques des utilisateurs, traitement des multiples préférences des utilisateurs finaux pour générer des données co
H04N 21/24 - Surveillance de procédés ou de ressources, p.ex. surveillance de la charge du serveur, de la bande passante disponible ou des requêtes effectuées sur la voie montante
H04N 21/442 - Surveillance de procédés ou de ressources, p.ex. détection de la défaillance d'un dispositif d'enregistrement, surveillance de la bande passante sur la voie descendante, du nombre de visualisations d'un film, de l'espace de stockage disponible dans l
68.
ROTATION STATE ESTIMATION APPARATUS, METHOD THEREOF, AND PROGRAM
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Mikami, Dan
Yamamoto, Susumu
Kashino, Makio
Saijo, Naoki
Yamaguchi, Masumi
Fukuda, Takehiro
Abrégé
A rotation state of an object obtained from an input video of a plurality of frames in time series is estimated by using an object image obtained by excluding at least a part of a region common to the plurality of frames from an image corresponding to the object.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Nakahira, Toshiro
Sasaki, Motoharu
Moriyama, Takatsune
Takatori, Yasushi
Abrégé
A base station allocation support apparatus includes a first calculation unit that calculates radio wave propagation attenuation values between a plurality of wireless terminals in a certain area based on position information of each of the plurality of wireless terminals and information indicating a layout of the area, a clustering unit that performs clustering on the plurality of wireless terminals based on the radio wave propagation attenuation values; and a determination unit that determines an arrangement position of a wireless base station with respect to the wireless terminals based on a result of the clustering.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Kobayashi, Daisuke
Nakamura, Ken
Nitta, Koyo
Omori, Yuya
Abrégé
A video coding method is a video coding method for coding an image in units of blocks obtained by dividing an image, and in the method a computer performs processing for dividing the image into blocks, acquiring an intra-image prediction mode predicted for each block, and generating, by using a combination pattern based on the intra-image prediction mode of a plurality of blocks adjacent to at least any one block, determining whether or not the plurality of blocks are to be combined, and performing prediction for each combined block when it is determined that the plurality of blocks are to be combined.
H04N 19/11 - Sélection du mode de codage ou du mode de prédiction parmi plusieurs modes de codage prédictif spatial
H04N 19/119 - Aspects de subdivision adaptative, p.ex. subdivision d’une image en blocs de codage rectangulaires ou non
H04N 19/176 - Procédés ou dispositions pour le codage, le décodage, la compression ou la décompression de signaux vidéo numériques utilisant le codage adaptatif caractérisés par l’unité de codage, c. à d. la partie structurelle ou sémantique du signal vidéo étant l’objet ou le sujet du codage adaptatif l’unité étant une zone de l'image, p.ex. un objet la zone étant un bloc, p.ex. un macrobloc
H04N 19/593 - Procédés ou dispositions pour le codage, le décodage, la compression ou la décompression de signaux vidéo numériques utilisant le codage prédictif mettant en œuvre des techniques de prédiction spatiale
71.
INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Yamada, Shota
Kakinuma, Hirokazu
Nagata, Hidenobu
Abrégé
An information processing device includes an extraction unit, an inverse sampling unit, a mapping unit, a generation unit, and a correction unit. The extraction unit is to extract a first feature value of a first image. The inverse sampling unit is to generate a second image having a resolution lower than that of the first image based on the first image and first information indicating a lighting environment different from that of the first image. The mapping unit generates a vector representing a latent space based on the second image. The generation unit is configured to generate a second feature value of a third image having a resolution higher than that of the second image based on the vector. The correction unit is configured to generate a fourth image obtained by correcting the third image based on the first feature value and the second feature value.
G06T 11/60 - Edition de figures et de texte; Combinaison de figures ou de texte
G06T 3/40 - Changement d'échelle d'une image entière ou d'une partie d'image
G06V 10/44 - Extraction de caractéristiques locales par analyse des parties du motif, p.ex. par détection d’arêtes, de contours, de boucles, d’angles, de barres ou d’intersections; Analyse de connectivité, p.ex. de composantes connectées
G06V 10/60 - Extraction de caractéristiques d’images ou de vidéos relative aux propriétés luminescentes, p.ex. utilisant un modèle de réflectance ou d’éclairage
72.
EVALUATION METHOD AND EVALUATION DEVICE FOR MULTI-CORE FIBER
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Hanzawa, Nobutomo
Matsui, Takashi
Sagae, Yuto
Nakajima, Kazuhide
Abrégé
An object of the present invention is to provide an evaluation method and an evaluation device for easily determining whether or not a structural parameter of a multi-core fiber satisfies a desired connection loss value (a specification). The evaluation method according to the present invention includes a step of measuring center coordinates of each core with the center coordinates when a clad is approximated by a circle as an origin in an observed cross-sectional structure of the multi-core fiber to be objected, obtaining a length of a line segment connecting the origin and the center of each core and an angle formed by two line segments connecting the origin and two adjacent cores, and judging whether or not a desired connection loss characteristic is satisfied on the basis of whether or not the values satisfy a predetermined determination formula.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Sasaki, Motoharu
Kuno, Nobuaki
Nakahira, Toshiro
Inomata, Minoru
Yamada, Wataru
Moriyama, Takatsune
Abrégé
A connection destination switching control method executed by a communication apparatus, the connection destination switching control method comprising: a data acquisition step of acquiring observed values of received power of signals transmitted from a base station; a prediction processing step of predicting future received power by using the observed values acquired in the data acquisition step as input data into a prediction model; and a connection destination switching processing step of executing control for handover based on the future received power predicted in the prediction processing step.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Yamagishi, Kazuhisa
Lebreton, Pierre
Abrégé
An encoding parameter deriving apparatus for improving video delivery quality is provided. The encoding parameter deriving includes: a relationship deriving unit that calculates a value of an index indicating a quality of experience of a viewer for each of a plurality of encoded videos generated by encoding an original video by a plurality of combinations of values of encoding parameters, and derives a relationship between the values of the encoding parameters and the values of the index; and a possibility deriving unit that derives a plurality of possibilities for a combination of values of the encoding parameters to be used for encoding the original video, based on the relationship.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Ando, Atsushi
Murata, Yumiko
Mori, Takeshi
Abrégé
An array generating unit (15b) divides a sequence of acoustic features for each frame of an acoustic signal into segments of a predetermined length and generates an array in which a plurality of divided segments in a row direction are arranged in a column direction. A learning unit (15d) generates by learning, using the array, a speaker diarization model (14a) for estimating a speaker label of a speaker vector of each frame.
G10L 17/04 - Entraînement, enrôlement ou construction de modèle
G10L 15/04 - Segmentation; Détection des limites de mots
G10L 17/02 - Opérations de prétraitement, p.ex. sélection de segment; Représentation ou modélisation de motifs, p.ex. fondée sur l’analyse linéaire discriminante [LDA] ou les composantes principales; Sélection ou extraction des caractéristiques
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Omori, Yoshihiko
Yamashita, Takao
Suga, Yurika
Yoshimura, Yasuhiko
Abrégé
A user agent stores user information of a user and user information provided to a service provider server. When a user terminal registers the user in the service provider server, the user agent sends the user information already provided to the service provider server to the user terminal. When the user agent receives a provision permission of the user information from the user terminal, the user agent generates pseudo user identification information, a public key, and a private key, signs a service document of the service provider server, and sends the service document to the service provider server via the user terminal. When the signed service document is received, the user agent verifies the signature and sends user information to the service provider server.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Mikami, Dan
Yamamoto, Susumu
Kashino, Makio
Saijo, Naoki
Yamaguchi, Masumi
Fukuda, Takehiro
Abrégé
A target estimation image which is an image of a target at a time point t+w·u obtained by spinning the object in an object image at a time point t obtained from an input video of a plurality of frames in time-series by w unit time on the basis of a hypothesis of spin state and an object image at the time point t+w·u obtained from the input video are used, to estimate the spin state of the object by selecting a hypothesis of spin state and w in which likelihood of the target estimation image becomes high from among a plurality of hypotheses of spin states and a plurality of w whose absolute values are two or more, wherein an absolute value of w is an integer of 2 or more and u is a unit time.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Kubo, Takahiro
Yoshihara, Shinichi
Yasuhara, Natsuki
Yazawa, Go
Abrégé
An information communication device arranged between a transmission-side device and a reception-side device according to one embodiment includes a reception unit that receives transmission data to be transmitted from the transmission-side device to the reception-side device, a control unit that receives a notification indicating deterioration in quality the transmission data, determines conversion object data for converting a data type of the transmission data or reducing an information amount of the transmission data and non-conversion object data for not converting a data type based on the notification, and generates post-conversion object data by converting a type of the conversion object data based on the notification, a transmission queue that synthesizes the non-conversion object data and the post-conversion object data and generates converted transmission data, and a transmission unit that transmits the converted transmission data to the reception-side device.
H04L 47/267 - Commande de flux; Commande de la congestion utilisant un retour explicite à la source, p.ex. paquets de signalisation de congestion envoyé par le nœud de destination finale
H04L 43/0882 - Utilisation de la capacité de la liaison
H04L 47/10 - Commande de flux; Commande de la congestion
H04M 7/00 - Dispositions d'interconnexion entre centres de commutation
79.
DIELECTRIC SPECTROSCOPY MEASURING DEVICE AND DIELECTRIC SPECTROSCOPY MEASURING METHOD
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Nakamura, Masahito
Tajima, Takuro
Seyama, Michiko
Abrégé
A dielectric spectroscopy measuring device includes a signal generation unit that generates electromagnetic waves, a signal separation unit that separate the electromagnetic waves according to a transmission direction and outputs the separated electromagnetic waves to an output destination corresponding to the transmission direction, a changeover switch unit that receives the electromagnetic waves generated by the signal generation unit via the signal separation unit, switches an output destination, and outputs the received electromagnetic waves, and outputs electromagnetic waves returning from the output destination to the signal separation unit, a sensor unit that irradiates a measurement target with the electromagnetic waves output by the changeover switch unit, and outputs measurement target waves obtained by irradiation to the changeover switch unit, a calibration standard unit including a circuit for calibration standard, the circuit outputting reflected waves for calibration generated by receiving the electromagnetic waves output by the changeover switch unit to the changeover switch unit, a signal reception unit that receives the measurement target waves and the reflected waves for calibration via the signal separation unit, and an operation unit that receives a measurement value output by the signal reception unit receiving the measurement target waves and the reflected waves for calibration, and corrects the received measurement value of the measurement target on the basis of the measurement value corresponding to the received reflected waves for calibration.
G01N 22/00 - Recherche ou analyse des matériaux par l'utilisation de micro-ondes ou d'ondes radio, c. à d. d'ondes électromagnétiques d'une longueur d'onde d'un millimètre ou plus
80.
PROTOCOL CONVERSION DEVICE, COMMUNICATION CABLE TEST METHOD, AND PROGRAM
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Watanabe, Kosuke
Abrégé
The quality of a communication cable can be efficiently determined. Therefore, a protocol conversion device includes a protocol converter for mutually converting between a message transfer part 2 message input/output from a public switched telephone network (PSTN) connector and an user peer-to-peer adaptation (M2PA) message input/output from an IP connector, a test signal output unit for outputting a test signal from the PSTN connector when a test instruction command is received, and a determination unit for outputting a determination result on the basis of whether or not the test signal has been received from the PSTN connector within a predetermined time from an output timing of the test signal.
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Watanabe, Yuta
Takei, Yuki
Abrégé
A communication system sets a first priority as a priority of a BGP in a path connecting from a terminal to a terminal through an active system connection unit, sets a second priority lower than the first priority as a priority of a BGP in a path connecting from the terminal to the terminal through the standby system connection unit, and sets a third priority which is lower than the first priority and higher than the second priority as a priority of a BGP in a path connecting the active system connection unit and the standby system connection unit. The communication system discards traffic other than a BGP among traffic from the standby system connection unit to the active system connection unit.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Ishii, Azusa
Mineta, Shingo
Oka, Soichi
Abrégé
A coating film evaluation structure includes a laminate including a first sheet, a second sheet, and a third sheet which are laminated. The second sheet is disposed on the first sheet, and the third sheet is disposed on the second sheet. In the laminate, the area of each sheet gradually reduces in the lamination direction, and a stepped portion is provided at an end portion. The coating film to be evaluated and the plurality of sheets have different colors. The coating film evaluation structure includes a coating film layer formed on the sheet having the largest area among the plurality of sheets so as to cover the other sheets and having a flat surface.
G01B 21/08 - Dispositions pour la mesure ou leurs détails, où la technique de mesure n'est pas couverte par les autres groupes de la présente sous-classe, est non spécifiée ou est non significative pour mesurer la longueur, la largeur ou l'épaisseur pour mesurer l'épaisseur
G01N 17/00 - Recherche de la résistance des matériaux aux intempéries, à la corrosion ou à la lumière
83.
Optical Transmitter and Method of Calculating an Optical Power
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Kanazawa, Shigeru
Nakanishi, Yasuhiko
Shindo, Takahiko
Chin, Meishin
Abrégé
An optical transmitter that multiplexes and outputs a plurality of wavelength channels includes: a first light source; at least one second light source having a different wavelength from the first light source, the at least one second light source each having a different wavelength; an optical multiplexer that causes an output light beam from the first light source to be transmitted from a first end surface to a second end surface facing the first end surface, causes the output light beam from the first light source to be reflected by a reflecting mirror formed on the second end surface, causes an output light beam from the second light source to pass through a wavelength filter formed on the first end surface, causes the optical light beam from the second light source to be reflected by the reflecting mirror, and causes output light beams of the respective wavelength channels to reciprocate between the reflecting mirror and the wavelength filter, to sequentially multiplex the output light beams of the respective wavelength channels.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Matsuo, Yoichi
Yamagishi, Kazuhisa
Abrégé
An information processing apparatus including: an experience quality estimation unit that estimates an experience quality value when changing any index value of a plurality of index values included in viewing history data of an image; a contribution degree calculation unit that calculates a contribution degree of each index value included in the plurality of index values to a contribution degree on the basis of the estimated experience quality value; and a contribution degree output unit that outputs information indicating the contribution degree.
H04N 19/154 - Qualité visuelle après décodage mesurée ou estimée de façon subjective, p.ex. mesure de la distorsion
H04N 19/119 - Aspects de subdivision adaptative, p.ex. subdivision d’une image en blocs de codage rectangulaires ou non
H04N 19/184 - Procédés ou dispositions pour le codage, le décodage, la compression ou la décompression de signaux vidéo numériques utilisant le codage adaptatif caractérisés par l’unité de codage, c. à d. la partie structurelle ou sémantique du signal vidéo étant l’objet ou le sujet du codage adaptatif l’unité étant des bits, p.ex. de flux vidéo compressé
H04N 19/189 - Procédés ou dispositions pour le codage, le décodage, la compression ou la décompression de signaux vidéo numériques utilisant le codage adaptatif caractérisés par le procédé d’adaptation, l’outil d’adaptation ou le type d’adaptation utilisés pour le codage adaptatif
85.
WIRELESS COMMUNICATION SYSTEM, RELAY APPARATUS, WIRELESS COMMUNICATION METHOD AND PROGRAM
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Sakamoto, Kazumitsu
Fujino, Yosuke
Goto, Daisuke
Kojima, Yasuyoshi
Itokawa, Kiyohiko
Abrégé
A transmission data controller determines a frequency bandwidth according to a relay apparatus position, the frequency bandwidth being used for a first signal transmitted from a first communication apparatus, on the basis of information regarding the number of first communication apparatuses with which a relay apparatus communicates at the relay apparatus position. The transmission data controller transmits band information indicating a frequency band selected from radio frequency bands that can be used for the first signal on the basis of the determined frequency bandwidth to the first communication apparatus. The first communication apparatus transmits the first signal having a frequency included in the frequency band indicated by the band information. The relay apparatus acquires waveform data of the first signal transmitted by the first communication apparatus, and transmits the acquired waveform data to a second communication apparatus by a second signal. The second communication apparatus performs reception processing of the first signal indicated by the waveform data acquired by performing reception processing of the second signal.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Ikeshita, Rintaro
Kamo, Naoyuki
Nakatani, Tomohiro
Abrégé
Provided is a reverberation removal device that is highly accurate even in noisy environments and underdetermined conditions. Reverberation is removed by applying a plurality of reverberation prediction filters to an observation signal while switching the plurality of reverberation prediction filters according to each time frequency bin of the observation signal.
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Ohashi, Shigenori
Watanabe, Hiroki
Ishida, Tatsuro
Fujimura, Shigeru
Nakadaira, Atsushi
Abrégé
Pieces of information on multiple file management systems are managed by one contract in a distributed ledger. An administrator terminal includes: a file management system generation unit that issues a contract generation transaction for generating, in blockchain data, a contract in which a network identifier that identifies a file management system is associated with an identifier of a participant terminal in a blockchain system, and notifying the participant terminal of the network identifier and an identifier of the contract; and a file management control unit that issues a registration transaction for registering, in the contract, connection information of the administrator terminal in the file management system, acquires connection information of the participant terminal in the file management system from the contract, and establishes a P2P connection with the participant terminal based on the acquired connection information.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Ikeguchi, Yuta
Kobayashi, Daiki
Uchibori, Daisuke
Aratake, Atsushi
Nakagawa, Masafumi
Abrégé
A vibration reproduction device (100) is a vibration reproduction device that reproduces vibration of a pipeline (10) attached to a structure, and includes: a plurality of support members (101a, 101b) for supporting the pipeline; a fixing members (102a, 102b) for fastening the pipeline to the support members; support bases (103a, 103b) that are joined to the support members and to which a vibration force is applied; and viscoelastic members (106a, 106b) provided between the support bases and the ground.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Kobayashi, Daiki
Ikeguchi, Yuta
Uchibori, Daisuke
Nakagawa, Masafumi
Aratake, Atsushi
Abrégé
A vibration test device (100) is a vibration test device for testing vibration of a pipeline (10) attached to a structure. The vibration test device includes a plurality of support members (101a, 101b) that are joined to a wall surface with a predetermined gap therebetween and support the pipeline, a first fixing member (102a) that fastens the pipeline to a first support member at a position where one end of the pipeline protrudes from the first support member, a second fixing member (102b) that fastens the pipeline to a second support member at a position where another end of the pipeline protrudes from the second support member, a vibration-applying portion (103) that applies vibration force to one of the support members, a detection unit (104) that detects vibration of the pipeline, and a measurement unit (105) that measures a vibration characteristic of the pipeline.
G01N 29/12 - Analyse de solides en mesurant la fréquence ou la résonance des ondes acoustiques
G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonores; Visualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet - Détails
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Harada, Koichi
Shima, Masaki
Shibayama, Hiroki
Yamashita, Fumihiro
Abrégé
A reflector antenna includes: a radiator that radiates a radio wave; a main reflector that reflects the radio wave radiated from the radiator in a communication direction; an expansion panel that is attached to at least a part of the main reflector to increase an area of the main reflector; and a first adjustment unit that changes a position of the radiator, or a second adjustment unit that replaces the radiator with a radiator having a different radiation angle. This configuration makes it possible to implement a large-aperture antenna having excellent transportability and operability without preparing another antenna having a large aperture and replacing a standard antenna.
H01Q 19/19 - Combinaisons d'éléments actifs primaires d'antennes avec des dispositifs secondaires, p.ex. avec des dispositifs quasi optiques, pour donner à une antenne une caractéristique directionnelle désirée utilisant des surfaces réfléchissantes comportant plusieurs surfaces réfléchissantes comprenant une surface réfléchissante principale concave associée à une surface réfléchissante auxiliaire
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Tatsumi, Shoko
Nada, Masahiro
Nakanishi, Yasuhiko
Abrégé
The present disclosure is to provide a wafer carrier substrate for carrying a wafer on which a plurality of chips is formed, elements to be measured being built in the plurality of chips. The wafer carrier substrate includes: a vacuuming hole for vacuuming of the wafer placed on the wafer carrier substrate; a wafer alignment guide for determining a predetermined position of the wafer placed on the wafer carrier substrate; and a mark for determining a probe contact position. It is possible to recognize a specific shot, without any additional processing of the semiconductor wafer.
H01L 21/677 - Appareils spécialement adaptés pour la manipulation des dispositifs à semi-conducteurs ou des dispositifs électriques à l'état solide pendant leur fabrication ou leur traitement; Appareils spécialement adaptés pour la manipulation des plaquettes pendant la fabrication ou le traitement des dispositifs à semi-conducteurs ou des dispositifs électriques à l'état solide ou de leurs composants pour le transport, p.ex. entre différents postes de travail
H01L 21/68 - Appareils spécialement adaptés pour la manipulation des dispositifs à semi-conducteurs ou des dispositifs électriques à l'état solide pendant leur fabrication ou leur traitement; Appareils spécialement adaptés pour la manipulation des plaquettes pendant la fabrication ou le traitement des dispositifs à semi-conducteurs ou des dispositifs électriques à l'état solide ou de leurs composants pour le positionnement, l'orientation ou l'alignement
H01L 21/683 - Appareils spécialement adaptés pour la manipulation des dispositifs à semi-conducteurs ou des dispositifs électriques à l'état solide pendant leur fabrication ou leur traitement; Appareils spécialement adaptés pour la manipulation des plaquettes pendant la fabrication ou le traitement des dispositifs à semi-conducteurs ou des dispositifs électriques à l'état solide ou de leurs composants pour le maintien ou la préhension
92.
LEARNING APPARATUS, ANOMALY DETECTION APPARATUS, LEARNING METHOD, ANOMALY DETECTION METHOD, AND PROGRAM
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Matsuo, Yoichi
Tajiri, Kengo
Abrégé
A learning apparatus according to one embodiment includes an input unit configured to input a normal data collection for a first system that is a target domain and to input a normal data collection for a second system that is a source domain. The learning apparatus includes a learning unit configured to train a model that includes a first autoencoder configured to input normal data for the target domain, based on the normal data collection for the first system and the normal data collection for the second system. The model includes a second autoencoder configured to input normal data for the source domain, and includes a discriminator configured to output a probability that output data is data representing a feature for any one of the target domain and the source domain, while using, as an input, output data, output data of a first encoder included in the first autoencoder or a second encoder included in the second autoencoder.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Muto, Makoto
Abrégé
An image display method according to the present disclosure includes: a step of extracting each portion obtained by dividing one display target of the first and second display targets from one display target (S11); a step of determining whether the extracted portion is in contact with the other display target for each portion of one display target based on attribute information indicating presence of contact between each portion and the other display target among the first and second display targets (S12); and a step of displaying the extracted portion on a display device that displays the other display target when it is determined that the extracted portion is in contact with the other display target (S13) and displaying the extracted portion on a display device that displays one display target when it is determined that the extracted portion is not in contact with the other display target (S14).
H04N 13/395 - Affichages volumétriques, c. à d. systèmes où l’image est réalisée à partir d’éléments répartis dans un volume avec échantillonnage de la profondeur, c. à d. construction du volume à partir d’un ensemble ou d’une séquence de plans d’image 2D
H04N 13/122 - Raffinement de la perception 3D des images stéréoscopiques par modification du contenu des signaux d’images, p.ex. par filtrage ou par ajout d’indices monoscopiques de profondeur
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Kishida, Akira
Inoue, Yasuhiko
Nagata, Kengo
Asai, Yusuke
Takatori, Yasushi
Abrégé
A transmitting station (TX) of an embodiment includes first and second radio signal processing units (STA1 and STA2) and a link management unit (LM). The link management unit establishes multi-link with a receiving station by using the first and second radio signal processing units, and manages communication using the multi-link. The link management unit distributes a plurality of data units to the first and second radio signal processing units. The first radio signal processing unit transmits a first data unit group among the plurality of data units to the receiving station, and transmits first information indicating the sequence number of the data unit included in the first data unit group to the receiving station.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Fukai, Chisato
Abe, Yoshiteru
Toge, Kunihiro
Katayama, Kazunori
Abrégé
An objective of the present disclosure is to provide an optical coupler and an optical switch capable of achieving stable optical characteristics with low power consumption and more economical efficiency with respect to external factors. To achieve the objective, an optical coupler according to the present disclosure includes: a first ferrule in which core centers of one or a plurality of single core fibers are arranged on the same circumference from the center on a fiber cross-section;
a second ferrule in which core centers of a plurality of single core fibers are arranged on a circumference of the same diameter as the circumference of the first ferrule in which the core centers of the single core fibers are arranged from the center on the fiber cross-section; and
a cylindrical sleeve which has a hollow portion into which the first and second ferrules are inserted so that central axes of the first and second ferrules are aligned with each other with a predetermined gap between each of outer diameters of the first and second ferrules and an inner diameter of the hollow portion so that the first and second ferrules can rotate.
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Nakanishi, Toshiki
Kobayashi, Daiki
Aratake, Atsushi
Abrégé
An installing system (100) according to the present disclosure includes a U-bolt (10) which includes a pair of shaft parts (11) aligned in a first direction and extending in a second direction orthogonal to the first direction, and a bridge part (12) that connects one ends of each of the pair of shaft parts (11); and a measurer (20), in which a strain gauge (14) which outputs a signal corresponding to a strain of the shaft parts (11) in the second direction is embedded in each of the pair of shaft parts (11), in line symmetry with respect to a straight line (OX) including an apex (0) of the U-shape and extending in the second direction, and the measurer (20) measures the strain of each of the pair of shaft parts (11) in the second direction, from an output signal of the strain gauge (14) embedded in each of the pair of shaft parts (11).
F16B 31/02 - Assemblages à vis spécialement modifiés en vue de résister à une charge de traction; Boulons de rupture signalant ou limitant la charge de traction
F16B 35/04 - Boulons filetés; Boulons d'ancrage; Goujons filetés; Vis; Vis de pression avec tête ou axe de forme particulière permettant de fixer le boulon sur ou dans un objet
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Kobayashi, Daiki
Aratake, Atsushi
Abrégé
A U-bolt (10) according to the present disclosure is a U-bolt (10) including a pair of shaft parts (11) arranged in a first direction and extending in a second direction orthogonal to the first direction, and a bridge part (12) connecting one end of each of the pair of shaft parts (11) and in which a strain detection pattern is attached to at least a part of at least one shaft part (11) of the pair of shaft parts (11).
F16B 35/00 - Boulons filetés; Boulons d'ancrage; Goujons filetés; Vis; Vis de pression
F16L 3/02 - Supports pour tuyaux, pour câbles ou pour conduits de protection, p.ex. potences, pattes de fixation, attaches, brides, colliers entourant partiellement le tuyau, le câble ou le conduit de protection
98.
WIRELESS COMMUNICATION METHOD, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION PROGRAM
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (Japon)
Inventeur(s)
Omiya, Riku
Ogawa, Tomoaki
Murakami, Tomoki
Takatori, Yasushi
Abrégé
A wireless communication system includes a sensor that acquires a position of an obstacle present between a transmitting station and a receiving station; an obstacle region detector that detects an obstacle region on the basis of the position acquired by the sensor; and a reflector region setter that sets, as a reflector setting region, a region on an opposite side of the obstacle region with reference to a tangent from the transmitting station toward the obstacle region and on an opposite side of the obstacle region with reference to a tangent from the receiving station toward the obstacle region. Further, there is a reflector selector that selects a reflector present in the reflector setting region among the plurality of reflectors, and a controller that controls communication such that the receiving station and the transmitting station perform wireless communication by radio waves reflected by the reflector selected by the reflector selector.
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Tsuchikawa, Kimio
Yokose, Fumihiro
Fukai, Misa
Urabe, Yuki
Yagi, Sayaka
Abrégé
An acquisition unit detects an operation event of a user and acquires an occurrence position of the operation event in a captured image of an operation screen. A specifying unit specifies an image of the occurrence position of the operation event from among images to be candidates for a GUI component extracted from the captured image and records the image and the operation event in association with each other. A classifying unit classifies a set of recorded images into clusters according to the similarity between the images. A generation unit generates an operation log by using an image corresponding to the operation event of each classified cluster.
G06V 10/762 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant le regroupement, p.ex. de visages similaires sur les réseaux sociaux
G06V 10/764 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant la classification, p.ex. des objets vidéo
100.
TEST CODE GENERATOR, TEST CODE GENERATION METHOD, AND, TEST CODE GENERARATION PROGRAM
Nippon Telegraph and Telephone Corporation (Japon)
Inventeur(s)
Kanemaru, Sho
Sasaki, Yukitsugu
Takahashi, Kensuke
Toyoshima, Tsuyoshi
Abrégé
A test code generation device includes an action generation unit that acquires at least one of pieces of API-related data of an API specification, an API execution order file, a parameter setting file, a script setting file, a test type, and a parameter list and generates action code data corresponding to an action of a state transition pattern of an API adapter, and the test code generation unit that generates a test code of the API adapter based on the action code data generated by the action generation unit and the state transition pattern of the API adapter.