• All sections
• G - Physics
• G01S - Radio direction-finding; radio navigation; determining distance or velocity by use of radio waves; locating or presence-detecting by use of the reflection or reradiation of radio waves; analogous arrangements using other waves
• G01S 3/20 - Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived sequentially from receiving antennas or antenna systems having differently-oriented directivity characteristics or from an antenna system having periodically-varied orientation of directivity characterist derived by sampling signal received by an antenna system having periodically-varied orientation of directivity characteristic

Patent holdings for IPC class G01S 3/20

Total number of patents in this class: 26

10-year publication summary

Principal owners for this class