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Class Information
Number: 342/30
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Aircraft collision avoidance system (cas) > With transponder
Description: Subject matter including a radio signal receiver-transmitter to convey the radar signal.

Sub-classes under this class:

Class Number Class Name Patents
342/32 Included in secondary surveilance radar (ssr) or air traffic control radio beacon system (atcrbs) 124
342/31 Including synchronized clock 13

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
4364049 Radar transponders Dec. 14, 1982
4139848 Aircraft proximity warning indicator Feb. 13, 1979
4072943 Multi-target tracker Feb. 7, 1978
4067010 Circuit for inhibition of autogenetic false alarms in a collision avoidance system Jan. 3, 1978
4052721 Multi-target tracker for tracking near co-range targets Oct. 4, 1977
4016564 Multiple target data receiver for a collision avoidance system Apr. 5, 1977
4008471 Correlator to reduce bin straddle in a collision avoidance system Feb. 15, 1977
3947845 Altitude coding for collision avoidance system Mar. 30, 1976

1 2 3 4

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