|
H03J 1/00
|
TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS - Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general |
|
H03J 1/02
|
Indicating arrangements |
|
H03J 1/04
|
Indicating arrangements with optical indicating means |
|
H03J 1/06
|
TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS - Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general combined with other driving or adjusting arrangements, e.g. of gain control |
|
H03J 1/08
|
Toothed-gear drive; Worm drive |
|
H03J 1/10
|
Rope drive; Chain drive |
|
H03J 1/12
|
Friction drive |
|
H03J 1/14
|
Special arrangements for fine and coarse tuning |
|
H03J 1/16
|
Single control means independently performing two or more functions |
|
H03J 1/18
|
Control by auxiliary power |
|
H03J 1/20
|
Control by auxiliary power the auxiliary power being switched on as long as controlling current is switched on |
|
H03J 1/22
|
Control by auxiliary power with stepping arrangements actuated by control pulses |
|
H03J 3/00
|
Continuous tuning |
|
H03J 3/02
|
Continuous tuning - Details |
|
H03J 3/04
|
Arrangements for compensating for variations of physical values, e.g. temperature |
|
H03J 3/06
|
Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges |
|
H03J 3/08
|
Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges by varying a second parameter simultaneously with the tuning, e.g. coupling bandpass filter |
|
H03J 3/10
|
Circuit arrangements for fine tuning, e.g. bandspreading |
|
H03J 3/12
|
Electrically-operated arrangements for indicating correct tuning |
|
H03J 3/14
|
Visual indication, e.g. magic eye |
|
H03J 3/16
|
Tuning without displacement of reactive element, e.g. by varying permeability |
|
H03J 3/18
|
Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance |
|
H03J 3/20
|
Continuous tuning of single resonant circuit by varying inductance only or capacitance only |
|
H03J 3/22
|
Continuous tuning of single resonant circuit by varying inductance and capacitance simultaneously |
|
H03J 3/24
|
Continuous tuning of more than one resonant circuit simultaneously, the circuits being tuned to substantially the same frequency, e.g. for single-knob tuning |
|
H03J 3/26
|
Continuous tuning of more than one resonant circuit simultaneously, the circuits being tuned to substantially the same frequency, e.g. for single-knob tuning the circuits being coupled so as to form a bandpass filter |
|
H03J 3/28
|
Continuous tuning of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range |
|
H03J 3/30
|
Arrangements for ensuring tracking with variable inductors |
|
H03J 3/32
|
Arrangements for ensuring tracking with variable capacitors |
|
H03J 5/00
|
Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner |
|
H03J 5/02
|
Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings |
|
H03J 5/04
|
Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings operated by hand |
|
H03J 5/06
|
Settings determined by single indexing means with snap action |
|
H03J 5/08
|
Settings determined by a number of separately-actuated positioning means |
|
H03J 5/10
|
Settings determined by a number of positioning means mounted on a common support, which is adjustable to desired positions, a different positioning means being in operation in each position |
|
H03J 5/12
|
Settings determined by a number of separately-actuated driving means which adjust the tuning element directly to desired settings |
|
H03J 5/14
|
Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings operated by auxiliary power |
|
H03J 5/16
|
Settings determined by a number of separate positioning means actuated by hand |
|
H03J 5/18
|
Settings determined by a number of separate positioning means actuated by electromagnets |
|
H03J 5/20
|
Settings determined by a number of positioning means actuated by a second means adjustable to different positions by the same or by a second auxiliary power |
|
H03J 5/22
|
Settings determined by a number of separately actuated driving means which adjust the tuning element directly to desired settings |
|
H03J 5/24
|
Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection |
|
H03J 5/26
|
Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection operated by hand |
|
H03J 5/28
|
Tuning circuits or elements supported on a revolving member with contacts arranged in a plane perpendicular to the axis |
|
H03J 5/30
|
Tuning circuits or elements supported on a revolving member with contacts arranged in lines parallel to the axis |
|
H03J 5/32
|
Stationary tuning circuits or elements selected by push-button |
|
H03J 7/00
|
Automatic frequency control; Automatic scanning over a band of frequencies |
|
H03J 7/02
|
Automatic frequency control |
|
H03J 7/04
|
Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant |
|
H03J 7/06
|
Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers |
|
H03J 7/08
|
Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using varactors, i.e. voltage variable reactive diodes |
|
H03J 7/10
|
Modification of automatic frequency control sensitivity or linearising automatic frequency control operation |
|
H03J 7/12
|
Combination of automatic frequency control voltage with stabilised varactor supply voltage |
|
H03J 7/14
|
Controlling the magnetic state of inductor cores |
|
H03J 7/16
|
Automatic frequency control where the frequency control is accomplished by mechanical means, e.g. by a motor |
|
H03J 7/18
|
Automatic scanning over a band of frequencies |
|
H03J 7/20
|
Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element |
|
H03J 7/22
|
Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element in which an automatic frequency control circuit is brought into action after the scanning action has been stopped |
|
H03J 7/24
|
Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using varactors, i.e. voltage variable reactive diodes |
|
H03J 7/26
|
Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using varactors, i.e. voltage variable reactive diodes in which an automatic frequency control circuit is brought into action after the scanning action has been stopped |
|
H03J 7/28
|
Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using counters or frequency dividers |
|
H03J 7/30
|
Automatic scanning over a band of frequencies where the scanning is accomplished by mechanical means, e.g. by a motor |
|
H03J 7/32
|
Automatic scanning over a band of frequencies with simultaneous display of received frequencies, e.g. panoramic receivers |
|
H03J 9/00
|
Remote-control of tuned circuits; Combined remote-control of tuning and other functions, e.g. brightness, amplification |
|
H03J 9/02
|
Remote-control of tuned circuits; Combined remote-control of tuning and other functions, e.g. brightness, amplification using near-field transmission |
|
H03J 9/04
|
Remote-control of tuned circuits; Combined remote-control of tuning and other functions, e.g. brightness, amplification using ultrasonic, sonic or infrasonic waves |
|
H03J 9/06
|
Remote-control of tuned circuits; Combined remote-control of tuning and other functions, e.g. brightness, amplification using electromagnetic waves other than radio waves, e.g. light |
