| Patents for H03D 1 - Demodulation of amplitude-modulated oscillations (4,890) |
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| 12/08/1998 | US5847620 Dielectric resonator phase shifting frequency discriminator |
| 12/02/1998 | EP0783794B1 Method for Amplitude Demodulation |
| 11/26/1998 | WO1998053552A1 Single side-band modulation system for use in digitally implemented multicarrier transmission systems |
| 11/26/1998 | DE19720766A1 Digital amplitude demodulator with quadrature and coordinate converters |
| 11/26/1998 | CA2289537A1 Single side-band modulation system for use in digitally implemented multicarrier transmission systems |
| 11/24/1998 | US5841811 Quadrature sampling system and hybrid equalizer |
| 11/24/1998 | CA2100444C Am-fm combined stereo receiver |
| 11/18/1998 | CN1199305A Phase correction circuit and method therefor |
| 11/17/1998 | US5838735 Method and apparatus for compensating for a varying d.c. offset in a sampled signal |
| 10/21/1998 | EP0801866A4 Phase detector in a carrier recovery network for a vestigial sideband signal |
| 10/21/1998 | EP0752185A4 Carrier recovery system for a vestigial sideband signal |
| 10/21/1998 | EP0752173A4 Blind equalizer for a vestigial sideband signal |
| 10/21/1998 | EP0752172A4 Carrier independent timing recovery system for a vestigial sideband modulated signal |
| 10/13/1998 | US5822688 Method for enhancing the reception sensitivity in homodyne recievers |
| 09/29/1998 | US5815113 Monolithic, low-noise, synchronous direct detection receiver for passive microwave/millimeter-wave radiometric imaging systems |
| 09/29/1998 | US5815035 Demodulating circuit, demodulating apparatus, demodulating method, and modulating/demodulating system of acoustic signals |
| 09/22/1998 | US5812600 Method and apparatus for mitigating distortion effects in the determination of signal usability |
| 09/22/1998 | US5811961 Amplitude and phase adjustment circuit |
| 09/16/1998 | EP0864198A1 Data detection for partial response channels |
| 09/15/1998 | US5809085 Apparatus and method for detecting and discriminating various signal types in the presence of impulse distortions |
| 09/15/1998 | CA2124480C Dc coupled amplifier fed by an rf detector |
| 09/15/1998 | CA2067436C Demodulation of a signal transmitted over a fading channel using phase estimation, method and apparatus therefor |
| 09/09/1998 | EP0862816A1 Method and device for removing signal residues in quadrature signal modulator-demodulators |
| 09/08/1998 | US5805242 Carrier independent timing recovery system for a vestigial sideband modulated signal |
| 09/08/1998 | US5804993 Detecting circuit |
| 09/03/1998 | WO1998038745A1 A method of and a device for analog signal sampling |
| 09/02/1998 | EP0862274A1 A method of and a device for analog signal sampling |
| 09/02/1998 | EP0862263A2 Demodulator for amplitude-modulated carrier signal |
| 08/28/1998 | CA2221668A1 Demodulator for amplitude-modulated carrier signal |
| 08/25/1998 | US5799037 Signal processing apparatus |
| 08/11/1998 | US5793251 Demodulator circuit using gyrator circuit |
| 07/29/1998 | CN1039373C Quadrature distortion cancellation system |
| 07/28/1998 | US5787129 Decoder for a trellis encoded signal corrupted by NTSC co-channel interference and white noise |
| 07/28/1998 | US5787126 Detector and receiving and transmitting apparatus |
| 07/28/1998 | US5787124 Quadrature detector and amplitude error correction method for quadrature detector |
| 07/21/1998 | US5784686 IQ combiner technology in modulated backscatter system |
| 06/30/1998 | US5774194 Terrestrial and satellite television reception tuner |
| 06/17/1998 | EP0847642A1 Am compatible digital waveform demodulation using a dual fft |
| 05/26/1998 | US5757531 Gils for heterodyne receiver having low intermediate frequency |
| 05/20/1998 | EP0843407A1 Signal detecting circuit |
| 05/20/1998 | CN1182309A Interference signal cancellation system |
| 05/05/1998 | US5749051 Compensation for second order intermodulation in a homodyne receiver |
| 04/28/1998 | CA2100342C Am-fm combined stereo receiver |
| 04/23/1998 | WO1998016996A1 Decoder for a trellis encoded signal corrupted by ntsc co-channel interference and white noise |
| 04/15/1998 | CN1179251A Method and apparatus for processing burst signals in a telecommunication system |
| 04/02/1998 | WO1998013929A1 Receiver capable of demodulating multiple digital modulation formats |
| 03/31/1998 | US5734295 Quadrature demodulator having active filters formed with emitter follower output stages |
| 03/25/1998 | CN1177235A Digital demodulator and method therefor |
| 03/24/1998 | US5732332 Transmitter having temperature-compensated detector |
| 03/18/1998 | CN1176538A Monolithic, low-noise, synchronous direct detection receiver for passive microwave/millimeter-wave radiometric imaging systems |
| 03/05/1998 | DE19619442A1 Homodyne detector, heterodyne detector and generator device for electromagnetic radiation |
| 03/04/1998 | EP0827270A1 Diode mount structure in dielectric waveguide device, and detector and mixer using the diode mount structure |
| 03/04/1998 | EP0595976B1 Am receiver |
| 03/03/1998 | US5724002 Envelope detector including sample-and-hold circuit controlled by preceding carrier pulse peak(s) |
| 02/25/1998 | EP0825452A2 Monolithic, low-noise, synchronous direct detection receiver for passive microwave/millimeter-wave radiometric imaging systems |
| 02/25/1998 | EP0824782A2 Receiver with digital processing of a phase-splitted input signal |
| 02/24/1998 | US5721507 Full-wave rectifying circuit having only one differential pair circuit with a function for combining a pair of half-wave rectified currents into a full-wave rectified current |
| 02/12/1998 | WO1998006173A1 Frequency lock indicator for fpll demodulated signal having a pilot |
| 02/12/1998 | WO1998006172A1 Dc offset compensation method and apparatus |
| 02/11/1998 | EP0823801A2 Clock distribution via suppressed carrier to reduce EMI |
| 02/05/1998 | WO1998005117A1 Method and apparatus for mitigating distortion effects in the determination of signal usability |
| 02/04/1998 | CN1172260A Amplitude detecting device |
| 02/03/1998 | US5715530 Method for reducing spurious reception locations in homodyne receivers with time-variant carrier frequency |
| 02/03/1998 | US5715012 Radio receivers for receiving both VSB and QAM digital HDTV signals |
| 01/29/1998 | WO1998004050A1 Compensation for second order intermodulation in a homodyne receiver |
| 01/15/1998 | WO1998001981A1 Method and apparatus for compensating for a varying d.c. offset in a sampled signal |
| 01/07/1998 | EP0816796A1 Amplitude detecting device |
| 12/30/1997 | US5703518 Absolute value circuit capable of providing full-wave rectification with less distortion |
| 12/18/1997 | WO1997048180A1 Envelope detector including sample-and-hold circuit controlled by preceding carrier pulse peak(s) |
| 12/18/1997 | CA2258020A1 Envelope detector including sample-and-hold circuit controlled by preceding carrier pulse peak(s) |
| 12/17/1997 | EP0813345A2 Digital demodulator and method therefor |
| 12/16/1997 | US5699204 Method and apparatus for the coherent demodulation of an amplified modulated carrier using a dual track and hold amplifier and the application of said method and apparatus to measurement of magnetic media performance |
| 12/16/1997 | US5699011 DC offset compensation method and apparatus |
| 12/11/1997 | DE19643833C1 Demodulating amplitude modulated input signal |
| 12/11/1997 | DE19616368C1 Demodulation method for single side band signal |
| 12/09/1997 | CA2081004C Apparatus and method for reducing harmonic interference generated by a clock signal |
| 12/02/1997 | US5694093 Wideband IQ modulator with RC/CR automatic quadrature network |
| 11/12/1997 | CN1164782A Integrated receiver |
| 10/30/1997 | WO1997032391A3 Receiver with digital processing of a phase-splitted input signal |
| 10/30/1997 | DE19620563C1 Method of synchronous demodulation of amplitudemodulated input signal with defined carrier frequency |
| 10/22/1997 | EP0801866A1 Phase detector in a carrier recovery network for a vestigial sideband signal |
| 10/22/1997 | CN1162880A Dual mode modulating device and method |
| 10/15/1997 | EP0801495A2 Data transmission apparatus |
| 10/08/1997 | CN2264442Y Width key-controlled carrier wave demodulator |
| 10/07/1997 | US5675284 Frequency lock indicator for FPLL demodulated signal having a pilot |
| 10/07/1997 | US5675283 Pilot recovery and polarity detection system |
| 09/30/1997 | US5673324 Radio receiver circuit for deriving at least one reception quality signal |
| 09/30/1997 | US5673293 Method and apparatus for demodulating QAM and VSB signals |
| 09/24/1997 | EP0797292A1 Integrated receiver |
| 09/24/1997 | CN1160461A Digital QAM and VSB modulator and demodulator |
| 09/16/1997 | US5668749 Circuit for performing arithmetic operations in a demodulator |
| 09/10/1997 | CN1159258A Compensation for multi-path interference using pilot symbols |
| 09/04/1997 | WO1997032391A2 Receiver with digital processing of a phase-splitted input signal |
| 09/03/1997 | CN2261685Y Carrier modulator controlled by keys |
| 09/02/1997 | US5663773 Demodulator for a complex-value vestigial sideband signal |
| 08/27/1997 | EP0570481B1 Am-fm combined stereo receiver |
| 08/26/1997 | US5661485 For receiving an input signal and producing an output signal |
| 08/19/1997 | US5659253 For detecting an rf input signal |
| 08/14/1997 | CA2188494A1 Dual mode demodulating device and method |
| 07/29/1997 | US5652768 Method of and circuit arrangement for demodulating a digital amplitude-modulated carrier signal |