Patents
Sitemap › H04 - Electric communication technique › H04K - Secret communication; Jamming of communication › H04K 3 - Jamming of communication; Counter-measures
Patents for H04K 3 - Jamming of communication; Counter-measures (1,951)
03/1982
03/09/1982CA1119702A1 Parametric frequency division
02/1982
02/23/1982US4317214 Apparatus for simulating interference transmissions
02/23/1982US4317213 Television reception interfering apparatus
02/23/1982US4317204 Spread spectrum conferencing communication system
02/17/1982EP0045773A1 Receiver system for the suppression of jamming signals from frequency modulated jamming transmission
01/1982
01/26/1982US4313207 Method and system for selectively disrupting radio telegraph communications
01/20/1982EP0044133A2 Apparatus for simulating interference transmissions
01/05/1982US4309769 Method and apparatus for processing spread spectrum signals
12/1981
12/29/1981US4308621 Radio interference bucker apparatus
12/29/1981CA1115345A1 Frequency bandwidth center tuning technique
12/08/1981US4304517 Chaff ejection device
09/1981
09/03/1981WO1981002470A1 Receiver system for the suppression of jamming signals from frequency modulated jamming transmissions
05/1981
05/26/1981US4270207 Combined ECCM/diversity tropospheric transmission system
05/12/1981US4267592 Anti-jam radio
03/1981
03/10/1981US4255810 Jam resistant frequency modulation system
03/10/1981US4255791 Signal processing system
12/1980
12/23/1980US4241447 Secure spread spectrum communication system
12/10/1980EP0020217A1 Method of making a gaseous medium opaque in the optical and infrared ranges of the electromagnetic spectrum
12/09/1980CA1091298A1 System for transmission of information
10/1980
10/07/1980US4227249 Injected coded reference for adaptive array systems
09/1980
09/17/1980EP0015594A1 Chaff ejection device
08/1980
08/26/1980US4219891 Countermeasures system
08/12/1980US4217550 Radio jamming device
08/05/1980US4216546 Frequency bandwidth tuning system and method
07/1980
07/22/1980US4214208 Jamming of keyed continuous wave radio signals
12/1979
12/18/1979US4179657 Anti-jamming communication system
10/1979
10/09/1979US4170775 Communication system beamport sidelobe canceller
10/02/1979US4169993 Intercept receiver for double-side-band, noise-like signals
07/1979
07/10/1979US4160957 Signal re-generation apparatus
05/1979
05/01/1979US4152702 Adaptive antenna lobing on spread spectrum signals at negative S/N
11/1978
11/28/1978US4127817 Transmitter detecting apparatus
07/1978
07/25/1978US4103237 Radio jamming system
07/25/1978US4103236 Electronic jamming system
08/1977
08/23/1977US4044359 Multiple intermediate frequency side-lobe canceller
07/1977
07/19/1977US4037159 Chirp communication system
07/05/1977US4034156 Apparatus for the identification of feedback tapes in a shift register generator
11/1976
11/02/1976US3989887 Swept frequency trap jammer for secure television system
10/1976
10/19/1976US3987447 Missile command link with pulse deletion command coding
10/05/1976US3984774 Antijam communications system
09/1976
09/07/1976US3979086 Rocketed data communication system
07/1976
07/06/1976US3968448 Electrical filters
05/1976
05/18/1976US3958241 Chaff discrimination system
05/11/1976US3956729 Countermeasures apparatus
04/1976
04/20/1976US3952306 Serrodyne generator
04/06/1976US3949397 Identification - friend or foe system and method
04/06/1976US3949309 Non-linear processor for anti-jam operation
03/1976
03/09/1976US3943515 Counter-countermeasure guidance system
03/02/1976US3942179 Filtered-noise jammer
02/1976
02/17/1976US3939420 Debugging arrangement
02/17/1976US3939419 Security remote control method and system
02/03/1976US3936749 Matched filter communication systems
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