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Class Information
Number: 342/187
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > With particular circuit > Augmenter
Description: Subject matter wherein an active repeater is provided for returning the radar signal.










Patents under this class:

Patent Number Title Of Patent Date Issued
6456225 Reflector circuit Sep. 24, 2002
6067042 Test beacon for radar system May. 23, 2000
6061017 System for increasing isolation in active radar augmentation systems May. 9, 2000
5786786 Photonic radar decoy Jul. 28, 1998
5751238 Active corner reflector May. 12, 1998
5307068 Tunable high-frequency devices Apr. 26, 1994
5164734 Radar target with delayed reply means Nov. 17, 1992
4989007 Passive radar augmented projectile (PRAP) Jan. 29, 1991
4642640 Signal receptor-reradiator and surveillance tag using the same Feb. 10, 1987
4612543 Integrated high-gain active radar augmentor Sep. 16, 1986
4513447 Simplified frequency scheme for coherent transponders Apr. 23, 1985
4374438 Digital frequency and phase lock loop Feb. 15, 1983
4302846 Marker tag for a detection system Nov. 24, 1981
4242671 Transponders Dec. 30, 1980
4215347 Target seeker simulator Jul. 29, 1980
4186396 Radar beacon apparatus Jan. 29, 1980
4178596 Radar augmentation system for airborne target Dec. 11, 1979
4163232 Dual mode microwave mixer Jul. 31, 1979
4156873 Transponder for a moving vehicle tracking system May. 29, 1979
4117485 Radar target cross section control method and means Sep. 26, 1978
4083004 Expendable repeater employing harmonic mixing Apr. 4, 1978
4050070 Programmable microwave modulator Sep. 20, 1977
4017856 Self-calibrating microwave transponder Apr. 12, 1977
4005418 Cooperative signal processing beacon transponder Jan. 25, 1977











 
 
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