| Patents for H03D 5 - Circuits for demodulating amplitude-modulated or angle-modulated oscillations at will (308) |
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| 06/23/1994 | WO1994014246A1 Generation of a coherent signal using an adaptive filter for cancelling and synchronous detection in a digital radio receiver |
| 06/23/1994 | CA2151715A1 Coherent signal generation in digital radio receiver |
| 03/01/1994 | US5291081 Apparatus for detection of non-modulated signal and frequency acquisition |
| 01/26/1994 | EP0580269A2 Signal filter |
| 12/15/1993 | EP0574273A1 A receiver compriser a combined AM-FM demodulator |
| 11/24/1993 | EP0570508A1 Am-fm combined stereo receiver |
| 11/24/1993 | EP0570480A1 Am-fm combined stereo receiver |
| 07/20/1993 | US5230011 Receiver |
| 04/27/1993 | US5206601 Order statistic signal processor for estimating values of signal parameters and demodulating amplitude-, phase-, and frequency-modulated signals |
| 01/20/1993 | EP0523779A1 Direct conversion receiver |
| 01/12/1993 | US5179731 Frequency conversion circuit |
| 10/20/1992 | CA1309144C Am/fm band selector |
| 09/22/1992 | US5150121 Parameter sensing and processing system |
| 08/07/1992 | WO1992014312A1 Am-fm combined stereo receiver |
| 08/07/1992 | WO1992014299A1 Am-fm combined stereo receiver |
| 08/07/1992 | CA2100447A1 Am-fm combined stereo receiver |
| 06/09/1992 | US5121072 Digital demodulator for amplitude or angle modulation using truncated nonlinear power series approximations |
| 05/20/1992 | EP0486095A1 Digital receiver |
| 04/28/1992 | US5109542 AM-FM combined stereo receiver |
| 11/26/1991 | US5068918 Receiver for terrestrial am and satellite fm-tv broadcasting signals |
| 10/02/1991 | EP0448835A1 Phase splitter |
| 05/28/1991 | US5020147 FM/AM broadcast signal converter |
| 12/25/1990 | US4980687 Digital demodulator |
| 12/13/1990 | DE4018617A1 Frequency converter for quadrature modulator or demodulator |
| 12/13/1990 | DE4018616A1 Frequency converter for quadrature modulator or demodulator - using heterodyne signal generator providing quadrature signals with 90 degree phase-shift |
| 12/13/1990 | DE4018615A1 Frequency converter for quadrature modulator or demodulator |
| 12/13/1990 | DE4018614A1 Frequency converter for quadrature modulator or demodulator |
| 12/12/1990 | EP0401932A1 Receiver for terrestrial AM and satellite FM-TV broadcasting signals |
| 12/12/1990 | EP0401771A2 Circuit arrangement for frequency conversion |
| 11/27/1990 | US4974086 Frequency conversion circuit for a color television channel |
| 08/07/1990 | US4947408 Digital carrier demodulator employing components working beyond normal limits |
| 07/03/1990 | US4939789 Signal receiver for terrestrial and satellite broadcastings |
| 04/18/1990 | EP0364273A2 Digital demodulator system |
| 01/24/1990 | CN1039165A Frequency conversion circuit for color tv channel |
| 01/10/1990 | EP0349660A1 Frequency conversion circuit for a television channel |
| 07/25/1989 | US4852123 Nearly DC IF phase locked transceiver |
| 05/30/1989 | US4835792 Universal FM receiver for mobile communications |
| 11/10/1988 | DE3714962A1 Device for receiving signals |
| 07/27/1988 | EP0276144A2 Signal receiver for terrestrial and satellite broadcastings |
| 03/15/1988 | US4731796 Multi-mode radio transceiver |
| 12/01/1987 | CA1229885A1 Demodulating signals from zero if receiver using sampling techniques |
| 08/18/1987 | US4688263 Integrated AM-FM mixer |
| 06/16/1987 | US4674121 Circuit for detecting the level of noise in FM signal for use in AM/FM receiver |
| 05/07/1986 | EP0180339A2 A multi-mode radio transceiver |
| 04/16/1986 | EP0178146A2 Improvements relating to radio receivers |
| 04/01/1986 | US4580286 Noise activated mute for FM reception in an AM/FM radio receiver |
| 03/18/1986 | US4577157 Zero IF receiver AM/FM/PM demodulator using sampling techniques |
| 07/03/1985 | EP0147120A2 A zero if demodulator and method of demodulation |
| 05/07/1985 | CA1186755A1 Voltage controlled oscillator |
| 02/12/1985 | CA1182535A1 Synchronous receiver with analog high frequency section and digital low frequency section |
| 01/22/1985 | US4495650 Electronic tuning type radio receivers |
| 11/20/1984 | CA1178341A1 Circuit for processing angle modulated broadcast signals |
| 11/20/1984 | CA1178340A1 Circuit for demodulating amplitude and angle modulated broadcast signals |
| 09/04/1984 | US4470147 Radio receiver with quadrature demodulation and digital processing |
| 08/07/1984 | US4464770 Synchronous radio or television receiver with analog high frequency section followed by digital low frequency section |
| 10/25/1983 | CA1155936A2 Variable-angle, multiple channel amplitude modulation system |
| 09/20/1983 | CA1154096A1 Multiplex signal receiver |
| 08/30/1983 | CA1153076A1 Resonator coupled differential amplifier |
| 07/20/1983 | EP0020744B1 Am-fm detector circuit |
| 06/14/1983 | US4388496 FM/AM Stereo receiver |
| 04/26/1983 | US4381487 Resonator coupled differential amplifier |
| 04/19/1983 | US4380823 Multi-channel signal processing circuit formed in a semiconductor integrated circuit |
| 03/23/1983 | EP0074858A2 Radio receiver |
| 02/01/1983 | US4371749 Circuit for processing angle modulated broadcast signals |
| 11/30/1982 | US4361728 Multiplex signal receiver |
| 10/20/1982 | EP0062872A1 Receiving system |
| 07/20/1982 | US4340782 Circuit for demodulating amplitude and angle modulated broadcast signals |
| 04/29/1982 | EP0041566A4 Bandpass amplifier circuits. |
| 04/20/1982 | CA1122277A1 Variable-angle, multiple channel amplitude modulation system |
| 04/06/1982 | US4323731 Variable-angle, multiple channel amplitude modulation system |
| 12/16/1981 | EP0041566A1 Bandpass amplifier circuits |
| 11/17/1981 | CA1112724A1 Apparatus for receiving signals in plural frequency bands |
| 06/25/1981 | WO1981001780A1 Bandpass amplifier circuits |
| 05/19/1981 | US4268915 Universal automotive electronic radio with display for tuning or time information |
| 04/24/1981 | EP0020744A4 Am-fm detector circuit. |
| 03/10/1981 | US4255815 Electronic switching for AM-FM radio |
| 01/07/1981 | EP0020744A1 Am-fm detector circuit. |
| 11/04/1980 | CA1089028A1 Filter and demodulation arrangement |
| 09/17/1980 | EP0015706A1 Electronically tunable radio receiver |
| 06/26/1980 | WO1980001344A1 Am-fm detector circuit |
| 05/06/1980 | US4201946 AM-FM Detector circuit stabilized against fabrication and temperature variations |
| 04/15/1980 | CA1075773A1 Am-fm receiver having improved mode conversion |
| 01/01/1980 | US4181890 Apparatus for receiving signals in plural frequency bands |
| 11/20/1979 | CA1066781A1 Universal automotive electronic radio |
| 10/09/1979 | CA1064117A1 High speed fm and am demodulator |
| 09/18/1979 | CA1062779A1 Detector for am-fm signals |
| 07/10/1979 | US4160955 Compatible AM-FM frequency discriminator |
| 04/03/1979 | US4147986 AM-FM receiver |
| 03/06/1979 | CA1050119A1 Double quadrature fm receiver |
| 01/16/1979 | US4135158 Universal automotive electronic radio |
| 12/19/1978 | US4130806 Filter and demodulation arrangement |
| 05/16/1978 | US4090145 Digital quadrature demodulator |
| 01/24/1978 | US4070628 Radio receiver with selective plural band reception |
| 09/20/1977 | US4050022 AM-FM receiver having improved mode conversion |
| 07/05/1977 | US4034298 Cascode FM tuner for a radio receiver |
| 04/12/1977 | US4017812 Method of processing a signal, and corresponding devices |
| 01/04/1977 | US4001702 High speed fm and am demodulator |
| 12/21/1976 | US3999138 Detector for AM-FM signals |
| 11/02/1976 | US3990016 Asynchronous demodulator |
| 09/14/1976 | US3980900 Multipurpose switching circuits utilizing a novel semiconductor device |