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Class Information
Number: 342/428
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Directive > Beacon or receiver > Direction-finding receiver only > With continuously movable antenna pattern
Description: Subject matter wherein means are provided for constantly altering a direction characteristic of the receiver.










Sub-classes under this class:

Class Number Class Name Patents
342/431 Including a goniometer 7
342/429 Including a stationary antenna 17
342/430 Including plural moving antennas 23


Patents under this class:

Patent Number Title Of Patent Date Issued
8373595 Simultaneous radio detection and bearing system Feb. 12, 2013
7652625 System and method for the mitigation of multipath and the improvement of signal-to-noise ratios in time division multiple access(TDMA) location networks Jan. 26, 2010
7505791 Antenna setting apparatus Mar. 17, 2009
7495611 Method for determining signal direction using artificial doppler shifts Feb. 24, 2009
6914559 Direction finding method and system using digital directional correlators Jul. 5, 2005
6661378 Active high density multi-element directional antenna system Dec. 9, 2003
6459410 Communication system having a rotating directional antenna Oct. 1, 2002
5896106 Method for determining the roll attitude of a rolling flying object Apr. 20, 1999
5859612 Method for using an antenna with a rotating beam for determining the position of a mobile subscriber in a CDMA cellular telephone system Jan. 12, 1999
5574467 Doppler positioning using non-planar movement of transmitting source and receiving source Nov. 12, 1996
4368470 Radio direction finder Jan. 11, 1983
4276550 Scan pattern estimator for an electromagnetic sensor Jun. 30, 1981
4173762 Reference signal generating apparatus Nov. 6, 1979
4115776 Adaptive gain control for radiometric target tracking system Sep. 19, 1978
4012740 Radio-frequency direction-finding arrangement Mar. 15, 1977











 
 
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