| Patents for H03D 3 - Demodulation of angle-modulated oscillations (6,449) |
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| 10/08/1997 | EP0800266A2 Digital FM demodulator |
| 10/01/1997 | EP0798868A2 Radio receiving apparatus |
| 10/01/1997 | CN1161116A Automatic tuning of a radio transceiver |
| 10/01/1997 | CN1161115A A digital radio system, A digital radio device, and quadrature demodulator |
| 10/01/1997 | CN1036041C 直接变换接收机 Direct conversion receiver |
| 09/24/1997 | EP0797292A1 Integrated receiver |
| 09/24/1997 | EP0796496A2 Receiver circuit |
| 09/24/1997 | CN1160461A Digital QAM and VSB modulator and demodulator |
| 09/17/1997 | CN1159857A Radar Sensor |
| 09/16/1997 | US5668749 Circuit for performing arithmetic operations in a demodulator |
| 09/04/1997 | WO1997032391A2 Receiver with digital processing of a phase-splitted input signal |
| 09/02/1997 | US5663988 Method and circuit arrangement for offset correction in a TDMA radio receiver |
| 09/02/1997 | CA1339426C Hydrophone demodulator circuit and method |
| 08/27/1997 | EP0570481B1 Am-fm combined stereo receiver |
| 08/27/1997 | CN1158024A Delayed frequency modulation demodulation circuit |
| 08/26/1997 | US5661761 Quasi-synchronous detection and demodulation circuit and frequency discriminator used for the same |
| 08/26/1997 | US5661433 Digital FM demodulator |
| 08/21/1997 | WO1997030511A1 Apparatus for generating timing signal for a digital television signal receiver |
| 08/20/1997 | EP0789953A1 Automatic tuning of a radio transceiver |
| 08/19/1997 | US5659546 Wideband frequency signal digitizer and method |
| 08/19/1997 | CA2088187C Fm demodulation circuit |
| 08/14/1997 | WO1997029552A1 Method and circuit arrangement for processing a received signal |
| 08/14/1997 | CA2188494A1 Dual mode demodulating device and method |
| 08/13/1997 | EP0789448A1 Apparatus for DC compensation |
| 07/23/1997 | CN1155181A Phase-locked ring type device for demodulation to frequncy-modulated signal |
| 07/22/1997 | US5650749 FM demodulator using injection locked oscillator having tuning feedback and linearizing feedback |
| 07/16/1997 | EP0511989B1 Amplitude locked loop circuits |
| 07/16/1997 | CN1154773A Method and device for phase-modulated signals |
| 07/16/1997 | CN1154599A Frequency modulation signal demodulating circuit |
| 07/01/1997 | US5644602 Direct digital frequency synthesizer for use in a subscriber unit of a wireless digital communication system |
| 07/01/1997 | US5644260 RC/CR automatic quadrature network |
| 06/26/1997 | WO1997023032A1 Digital calibration of a transceiver |
| 06/25/1997 | CN1152976A 直接变频接收机 Direct conversion receiver |
| 06/24/1997 | US5642385 Frequency detector for carrier frequency synchronization |
| 06/18/1997 | EP0779703A1 Demodulator circuit for a signal, frequency modulated near an intermediate frequency |
| 06/18/1997 | EP0778996A1 Process and device for reshaping pairs of signals |
| 06/18/1997 | EP0778995A1 Receiver with quadrature decimation stage, method of processing digital signals |
| 06/17/1997 | US5640425 Fast-acting costas loop |
| 06/17/1997 | US5640126 FM demodulation and frequency tuning for a phase-locked loop |
| 06/12/1997 | WO1997013349A3 Receiver architecture for receiving angle-modulated/scanned carrier signals of different frequency |
| 06/12/1997 | DE19545280A1 Demodulating simultaneously amplitude and phase modulated functions for technical diagnosis |
| 06/11/1997 | EP0778669A1 Frequency demodulator |
| 06/11/1997 | EP0778667A1 Demodulator circuit using gyrator circuit |
| 06/10/1997 | US5638140 FPLL having AFC filter with limited phase shift |
| 06/05/1997 | WO1997020417A1 Digital demodulator |
| 06/04/1997 | EP0776547A1 A digital radio system, a digital radio device, and a quadrature demodulator |
| 06/04/1997 | EP0776486A1 Radar sensor |
| 05/22/1997 | DE19648057A1 Amplitude fault correction for quadrature detector |
| 05/22/1997 | DE19546406C1 Digital IF filter circuit for FM receiver |
| 05/21/1997 | EP0774832A1 Quadrature demodulator |
| 05/20/1997 | US5631924 Method and apparatus for baud rate detection in an FM receiver using parameters unrelated to baud rate as confirmation |
| 05/20/1997 | US5631601 FM demodulation with a variable gain phase locked loop |
| 05/14/1997 | EP0773447A2 Time counting circuit, pulse converting circuit and FM demodulating circuit |
| 05/14/1997 | EP0772932A1 Method and device for phase-modulated signals |
| 05/14/1997 | EP0772905A1 A direct conversion receiver |
| 05/13/1997 | US5630217 Error-free pulse noise canceler used in FM tuner |
| 05/09/1997 | WO1997014158A3 Receiver circuit |
| 05/07/1997 | EP0772315A1 Method and apparatus for radio transmission protected against noise |
| 05/07/1997 | EP0772289A1 Device of the phase locked loop type for demodulating a frequency modulated signal |
| 05/06/1997 | US5628059 DC offset circuit for cartesian loop |
| 04/30/1997 | CN1148913A Improvement in or relating to communications receivers |
| 04/29/1997 | US5625319 FM demodulator for reception of satellite broadcasting |
| 04/29/1997 | US5625310 Signal processing apparatus and displacement detecting apparatus using the same |
| 04/23/1997 | EP0769846A2 Delay-type FM demodulation circuit |
| 04/23/1997 | EP0769222A1 Improved sigma-delta fm demodulator |
| 04/23/1997 | CN1148294A Frequency modulated signal demodulator circuit and communication terminal equipment |
| 04/22/1997 | CA2069967C Frequency discriminator |
| 04/17/1997 | WO1997014211A1 Numerical voltage controlled oscillator |
| 04/17/1997 | WO1997014158A2 Receiver circuit |
| 04/15/1997 | US5621766 Method and apparatus for burst detecting |
| 04/15/1997 | US5621349 Device for controlling an output level of an FM detecting circuit using phase locked loop |
| 04/10/1997 | WO1997013349A2 Receiver architecture for receiving angle-modulated/scanned carrier signals of different frequency |
| 04/09/1997 | EP0767533A1 Rf apparatus |
| 04/09/1997 | EP0766833A1 Electronic viewing aid |
| 04/09/1997 | CN1147318A Synchronous detector and method for synchronous detection |
| 04/08/1997 | US5619538 Pulse shaping FM demodular with low noise where capacitor charge starts on input signal edge |
| 04/08/1997 | US5619536 Digital superheterodyne receiver and baseband filter method used therein |
| 04/08/1997 | US5619154 Numerical voltage controlled oscillator |
| 04/03/1997 | DE19536526A1 Empfängerarchitektur zum Empfangen von winkelmodulierten/-getasteten Trägersignalen unterschiedlicher Frequenz Receiver architecture for receiving angle-modulated / -getasteten carrier signals of different frequencies |
| 04/01/1997 | US5617451 Direct-conversion receiver for digital-modulation signal with signal strength detection |
| 04/01/1997 | US5617063 Matched filters for processing related signal components |
| 04/01/1997 | US5617060 Method and apparatus for automatic gain control and DC offset cancellation in quadrature receiver |
| 03/25/1997 | US5615411 Method and apparatus for composite signal separation and FM demodulation |
| 03/25/1997 | US5614862 Digital demodulator for a frequency modulated signal and an amplitude modulated signal |
| 03/19/1997 | EP0763278A2 Quadrature signal conversion device |
| 03/18/1997 | US5612976 Detectors |
| 03/18/1997 | CA2076935C Demodulating device |
| 03/18/1997 | CA2071551C Apparatus and method of dc offset correction for a receiver |
| 03/12/1997 | EP0762628A1 Digital frequency demodulator |
| 03/12/1997 | EP0701746B1 Terrestrial and satellite television reception tuner |
| 03/06/1997 | WO1997008842A1 Near direct conversion receiver and method for equalizing amplitude and phase therein |
| 03/06/1997 | DE19531998A1 DC component compensation method for radio receiver |
| 03/05/1997 | EP0760553A1 Demodulator for a frequency-modulated signal |
| 03/04/1997 | US5608796 Balanced phase splitting circuit |
| 02/27/1997 | DE19531032A1 Tuner for direct reception of satellite transmission |
| 02/25/1997 | US5606731 Zerox-IF receiver with tracking second local oscillator and demodulator phase locked loop oscillator |
| 02/25/1997 | US5606581 Method and apparatus for the cancellation of interference in electrical systems |
| 02/20/1997 | WO1997006607A1 Automatic tuning of a radio transceiver |
| 02/20/1997 | WO1997006604A1 Universal rf receiver |
| 02/20/1997 | CA2227869A1 Universal rf receiver |