| Patents for H03D 1 - Demodulation of amplitude-modulated oscillations (4,890) |
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| 01/04/1983 | US4367491 Video signal recovery system |
| 12/07/1982 | US4362998 FM Detector using a phase shift network and an analog multiplier |
| 12/07/1982 | US4362996 Method and means for an accurate wideband peak detector |
| 12/07/1982 | US4362906 FM Receiver |
| 11/30/1982 | CA1136767A1 Full wave rectifier envelope detector |
| 11/16/1982 | US4359693 Full wave amplitude modulation detector circuit |
| 10/20/1982 | EP0062872A1 Receiving system |
| 10/12/1982 | US4354235 Guidance system detector circuit |
| 09/29/1982 | EP0061377A1 Digital signal demodulator and a colour television receiver or system comprising such a demodulator |
| 09/16/1982 | WO1982003143A1 Phase locked loop with improved lock-in |
| 09/14/1982 | US4349785 Phase-controlling feedback circuit for single sideband demodulation |
| 09/14/1982 | CA1131718A1 Am detecting circuit |
| 09/14/1982 | CA1131710A1 Automatic frequency control system for single sideband signal receiver |
| 08/24/1982 | US4346477 Phase locked sampling radio receiver |
| 08/10/1982 | US4344040 Method and apparatus for providing the in-phase and quadrature components of a bandpass signal |
| 07/13/1982 | US4339631 Phase control device |
| 06/08/1982 | US4334125 Stereo demodulator circuit |
| 06/08/1982 | CA1125394A1 Process for recovering a modulation signal |
| 06/01/1982 | US4333141 Full wave rectifier |
| 04/27/1982 | CA1122660A1 Automatic fine tuning circuit |
| 04/06/1982 | US4323924 Automatic phase adjusting circuit for a synchronous detector |
| 03/24/1982 | EP0048229A2 Arrangement in a radar system for correction of phase and amplitude errors in a video signal |
| 03/16/1982 | US4320531 Time shared frequency conversion system |
| 03/16/1982 | US4320346 Large dynamic range low distortion amplitude modulation detector apparatus |
| 03/09/1982 | US4319196 Temperature compensated wide dynamic range linear envelope detector |
| 03/09/1982 | US4319195 Demodulator for amplitude modulated signal having high input impedance |
| 03/02/1982 | US4318050 AM Detecting circuit |
| 01/26/1982 | US4313211 Single sideband receiver with pilot-based feed forward correction for motion-induced distortion |
| 12/23/1981 | EP0041981A1 Radio frequency detector |
| 12/22/1981 | US4307347 Envelope detector using balanced mixer |
| 11/10/1981 | US4300020 Method and apparatus for eliminating pilot signal components from stereo demodulated signals |
| 11/03/1981 | US4298841 Signal envelope detecting system |
| 10/07/1981 | EP0037317A1 Process for the demodulation of an amplitude-modulated signal, demodulator for carrying out this process and television system comprising such a demodulator |
| 09/29/1981 | US4292594 Method and apparatus for carrier regeneration and synchronous amplitude demodulation |
| 09/08/1981 | US4288752 Stereo demodulator with high frequency de-emphasis compensation |
| 09/01/1981 | CA1108250A1 Demodulating apparatus with phase shift compenstion |
| 08/11/1981 | US4283792 Automatic fine tuning circuit |
| 07/21/1981 | US4280175 Alternating to direct voltage converter |
| 07/14/1981 | US4278944 Chopper type switching circuit |
| 07/09/1981 | WO1981001921A1 Radio frequency detector |
| 07/07/1981 | US4277753 Rectifier circuits |
| 06/30/1981 | CA1104219A1 Full-wave rectifier circuit |
| 06/16/1981 | US4274057 MPX Stereophonic demodulation |
| 06/16/1981 | CA1103347A1 Detector circuit for color television receiver |
| 06/09/1981 | US4272788 Receiver for television sound multiplex broadcasting and FM stereo multiplex broadcasting |
| 05/26/1981 | CA1101987A1 Synchronous detector particularly adapted for a video if signal |
| 05/20/1981 | EP0028675A1 CCD integrated circuit |
| 05/19/1981 | US4268915 Universal automotive electronic radio with display for tuning or time information |
| 05/13/1981 | EP0028454A1 Full wave rectifier |
| 04/21/1981 | US4263558 Phase-selective amplifier |
| 04/08/1981 | EP0026372A1 Local oscillator phase control circuit for a receiver of data signals transmitted by single side-band amplitude modulation |
| 03/31/1981 | US4259641 Linearized detector/rectifier circuit |
| 03/24/1981 | US4258327 Detector circuit with integrating feedback means |
| 02/24/1981 | US4253066 Synchronous detection with sampling |
| 02/19/1981 | WO1981000495A1 Single sideband receiver with pilot-based feed forward correction for motion-induced distortion |
| 02/17/1981 | US4251690 Frequency-modulation stereophonic receiver |
| 02/10/1981 | US4250457 Full wave rectifier envelope detector |
| 02/10/1981 | US4250453 Narrow band level detector for detecting a periodic signal |
| 02/03/1981 | US4249134 Radio frequency detectors |
| 02/03/1981 | US4249038 Stereo decoder with 19KHz-pilot suppression and improved oscillator phase locking |
| 01/06/1981 | CA1093162A1 Linear detection system |
| 12/23/1980 | US4241451 Single sideband signal demodulator |
| 11/25/1980 | US4236117 FM Detector using a phase shift network and an analog multiplier |
| 11/18/1980 | US4234963 Synchronous detector particularly adapted for a video IF signal |
| 11/04/1980 | CA1089039A1 Oscillating circuit |
| 10/14/1980 | US4228546 AM Radio receiver |
| 09/09/1980 | CA1085469A1 Stereo demodulation system |
| 08/26/1980 | CA1084598A1 Amplifying circuit |
| 08/19/1980 | CA1084126A1 High-speed tone decoder utilizing a phase-locked loop |
| 07/29/1980 | US4215316 AM stereo signal demodulation circuit |
| 07/15/1980 | CA1081804A1 Circuit for demodulating a stereo signal |
| 07/09/1980 | EP0013149A1 FM stereo signal demodulator |
| 07/08/1980 | CA1081359A1 Phase synchronizing arrangement for video synchronous detection |
| 06/03/1980 | US4206410 Automatic frequency control system for single sideband signal receiver |
| 05/06/1980 | CA1077144A1 Phase locked loop |
| 04/22/1980 | CA1076220A1 Balanced synchronous detector circuit |
| 03/18/1980 | US4194161 Switching modulators and demodulators utilizing modified switching signal |
| 03/04/1980 | CA1073059A1 Mpx stereo signal demodulator |
| 02/12/1980 | US4188586 Demodulator circuit for chopper amplifier |
| 02/05/1980 | US4187473 Electronic phase locked loop circuit |
| 01/29/1980 | CA1070769A1 Circuit arrangement for decoding a frequency-modulated stereo radio signal |
| 01/08/1980 | CA1069588A1 Vestigial-sideband transmission system for synchronous data signals |
| 12/04/1979 | CA1067588A1 Circuit arrangement for the demodulation of an amplitude-modulated signal |
| 11/27/1979 | CA1067154A1 Carrier isolation system |
| 11/20/1979 | CA1066781A1 Universal automotive electronic radio |
| 11/06/1979 | CA1065972A1 Complementary field effect transistor signal multiplier |
| 09/25/1979 | US4169248 Oscillating circuit |
| 09/25/1979 | CA1063186A1 Recursive detector-oscillator circuit |
| 09/18/1979 | CA1062779A1 Detector for am-fm signals |
| 09/11/1979 | US4167650 Stereo signal demodulating circuits |
| 09/11/1979 | CA1062342A1 Stereophonic signal demodulator |
| 09/04/1979 | US4166925 FM stereo demodulator |
| 08/14/1979 | US4164624 Demodulation circuits of FM stereophonic receivers |
| 08/07/1979 | US4163989 Detector circuit for color television receivers |
| 07/31/1979 | US4163196 Demodulating apparatus with phase shift compensation |
| 07/24/1979 | US4162446 Transceiver with only one reference frequency |
| 07/17/1979 | US4161697 Automatically clarifying radio receiver |
| 07/10/1979 | US4160922 Method of generating a direct current control signal from a noisy alternating current signal |
| 07/03/1979 | US4160217 Phase locked loop circuit |
| 06/19/1979 | US4158882 Full-wave rectifier circuit |