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Class Information
Number: 342/400
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Directive > Beacon or receiver > With transmisson of bearing or position determinative signals > Tacan > Receiver only
Description: Subject matter comprising apparatus used in the reception of the rotating beacon signal.

Sub-classes under this class:

Class Number Class Name Patents
342/401 Vor 31

Patents under this class:

Patent Number Title Of Patent Date Issued
5574467 Doppler positioning using non-planar movement of transmitting source and receiving source Nov. 12, 1996
5448248 Adaptive radio direction finding system Sep. 5, 1995
5157408 Low probability of interception relative position determination system Oct. 20, 1992
5016019 Method and apparatus for processing synthetic aperture aerial signals May. 14, 1991
4724439 Microwave radiometer using fanbeam inversion Feb. 9, 1988
4590476 Tracking servo compensator with rate aiding May. 20, 1986
4423420 Cancellation of group delay error by dual speed of rotation Dec. 27, 1983
4107686 Scanning beam receiver system with coherent post-detection signal processing Aug. 15, 1978
4090200 Method for the comparative vector measurement of signal pulses arriving nearly simultaneously at several radio receiving stations May. 16, 1978
4021808 Real time threshold May. 3, 1977
3946320 Signal processor for doppler type navigation system Mar. 23, 1976

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