Patents for H03D 3 - Demodulation of angle-modulated oscillations (6,449)
02/1997
02/18/1997US5604926 Phase locked loop circuit current mode feedback
02/18/1997US5604808 FM signal processor
02/11/1997US5603109 Automatic frequency control which monitors the frequency of a voltage controlled oscillator in a PLL demodulator
02/11/1997US5602877 Method and apparatus for information recovery in a radio communication device
02/05/1997EP0757483A2 Digital I-Q converter circuit
02/05/1997EP0757464A2 QAM spread spectrum demodulation system
02/05/1997EP0757433A1 Apparatus and methods for setting up a tuning frequency of a PLL demodulator
02/05/1997EP0756780A1 Improvements in or relating to communications receivers
01/1997
01/29/1997EP0755586A1 Receiver comprising a pulse count fm demodulator, and pulse count fm demodulator
01/29/1997CN1141531A Bus aligned quadrature FM detector
01/22/1997EP0755113A2 Radio receiver and frequency generator
01/22/1997CN1140957A Sine-wave modulator and play-back/recording modulator-demodulator for high-fidelity video play-back-recording system
01/21/1997US5596606 Synchronous detector and methods for synchronous detection
01/21/1997US5596298 Bus aligned quadrature FM detector
01/15/1997CN1140359A Device for controlling output level of FM detecting circuit using phase locked loop
01/14/1997US5594759 Quasi-synchronous detection and demodulation circuit and frequency discriminator used for the same
01/14/1997US5594344 Method and apparatus for generating and detecting amplitude and phase modulated sensor signals
01/14/1997US5594341 Nuclear magnetic resonance receiver, method and system
01/09/1997WO1997001218A1 A digital radio system, a digital radio device, and a quadrature demodulator
01/09/1997WO1997001217A1 Device for simultaneously demodulating a multifrequency signal, in particular for an eddy current measurement
01/09/1997CA2225524A1 Device for simultaneously demodulating a multifrequency signal, in particular for an eddy current measurement
01/07/1997US5592513 Synchronous modulator and methods for synchronous modulation
01/03/1997WO1997000555A1 Method and apparatus for baud rate detection with reduced noise falsing in an fm receiver
01/01/1997CN1139507A Circuit for the acquisition of a carrier signal by applying a substitute pilot to a synchronous demodulator
01/01/1997CN1139321A Receiver and associated method for timing recovery and frequency estimation
12/1996
12/17/1996US5586147 Demodulation method using quadrature modulation
12/10/1996US5584068 Direct conversion receiver
12/10/1996US5584063 If filter arrangement for FM reception signals
12/10/1996US5584062 Method and apparatus for compensating phase locked receivers
12/05/1996WO1996038924A1 Wideband zero if demodulator using single l.o
12/04/1996CN1137333A Receiver with quadrature decimation stage, method of processing digital signals
11/1996
11/28/1996WO1996037987A1 Method and device for phase-modulated signals
11/28/1996WO1996037948A1 Methods and apparatus for modulating, demodulating and amplifying
11/28/1996DE4143537C2 DC offset correction apparatus for receiver
11/28/1996CA2222091A1 Methods and apparatus for modulating, demodulating and amplifying
11/28/1996CA2194662A1 Method and device for phase-modulated signals
11/27/1996EP0195010B2 Automatic gain control circuit
11/26/1996US5579347 Digitally compensated direct conversion receiver
11/21/1996WO1996031943A3 Quadrature signal conversion device
11/20/1996CN1136377A Receiver having an adjustable symbol slice demodulator
11/14/1996WO1996036104A1 A direct conversion receiver
11/06/1996EP0741478A2 Circuit for performing arithmetic operations in a demodulator
11/06/1996EP0716788A4 Apparatus for performing frequency conversion in a communication system
11/05/1996US5572164 FM demodulator with threshold extension and receiver comprising such an FM demodulator
10/1996
10/29/1996US5570395 Method and apparatus for the cancellation of interference in electrical systems
10/24/1996WO1996033554A1 Rf apparatus
10/24/1996DE19609504A1 Empfänger und zugehöriges Verfahren zur Taktrückgewinnung und zur Frequenzschätzung Receiver and associated method for clock recovery and for frequency estimation
10/23/1996EP0739090A1 Transceiver and method for generating and processing of complex I/Q-signals
10/22/1996US5568520 Slope drift and offset compensation in zero-IF receivers
10/22/1996US5568305 Heterodyne receiver provided with a frequency discriminator for coherent lightwave communications
10/22/1996US5568185 Method of converting an analog image signal to a digital image signal
10/16/1996EP0738053A2 Automatic frequency control circuit applicable to a mobile communication system
10/10/1996WO1996031943A2 Quadrature signal conversion device
10/09/1996EP0736966A1 Bus aligned quadrature FM detektor
10/09/1996EP0736965A1 Signal demodulation method and apparatus therefor using multi-ary sampling
10/01/1996US5561716 Demodulator
10/01/1996US5561403 Oscillator and modulator arrangements on a circuit board
09/1996
09/25/1996CN1032891C Device for modulator
09/19/1996WO1996028885A1 Slope, drift and offset compensation in zero-if receivers
09/18/1996EP0732803A1 Method and device for demodulation by sampling
09/18/1996EP0732020A1 Receiver having an adjustable symbol slice demodulator
09/18/1996EP0732003A1 Fm demodulator with threshold extension and receiver comprising such an fm demodulator
09/17/1996US5557642 Communications receiver
09/17/1996US5557632 Demodulation and roll-off filter apparatus
09/11/1996CN1130832A Soft decision digital communication method and apparatus
09/10/1996US5554955 Method and apparatus for removing the effects of co-channel interference from the message on a dominant frequency modulated carrier and for recovering the message from each of two co-channel carriers
08/1996
08/28/1996CN1130002A Apparatus for performing frequency conversion in a communication system
08/28/1996CN1130000A Digital phase locked loop
08/27/1996US5550878 Phase comparator
08/27/1996US5549870 Self-supporting thin-film filament detector, process for its manufacture and its application to gas detection and gas chromatography
08/22/1996WO1996025790A1 Improvements in or relating to communications receivers
08/20/1996US5548831 FM Receiver having multiple IF stages
08/20/1996US5548244 Method for converting an input signal
08/20/1996US5548243 Demodulator for demodulating a single side band signal, a real zero single side band signal and a frequency modulated signal, and a carrier signal reproducing circuit for the demodulator
08/14/1996EP0726650A1 Balanced phase splitting circuit
08/07/1996CN1128437A Intermediate-frequency detection circuit
08/06/1996US5543742 Phase shifting circuit
07/1996
07/31/1996EP0701750A4 A wide bandwidth discriminator for use in a radio receiver
07/31/1996CN1128091A Method and apparatus for automatic gain control and dc offset cancellation in quadrature receiver
07/30/1996US5541959 Method and apparatus for the cancellation of interference in electrical systems
07/30/1996US5541955 Adaptive data rate modem
07/24/1996EP0723335A1 Radio receiver apparatus of orthogonal detection type comprising local oscillator means with improved automatic frequency control arrangement
07/18/1996WO1996021968A1 System and method for digital fm demodulation
07/17/1996EP0722215A1 PLL-FM demodulator
07/11/1996WO1996021305A1 Multiple access digital transmitter and receiver
07/11/1996WO1996021292A1 Wideband frequency signal digitizer and method
07/10/1996EP0627138B1 Demodulator for radio data signals
07/09/1996US5535249 Precise detection of frequency error for bursts modulated by predetermined symbol sequence
07/09/1996CA2042797C Delay detecting circuit for phase shift keying modulated signals
07/04/1996WO1996020539A1 Digitally compensated direct conversion receiver
07/04/1996CA2208850A1 Digitally compensated direct conversion receiver
07/03/1996EP0720315A1 Method for narrow band frequency modulation or phase modulation; transmitter and receiver for carrying out the method
07/03/1996CN1126006A A wide bandwidth discriminator for use in a radio receiver
06/1996
06/26/1996EP0719015A2 Frequency detector for carrier synchronisation
06/26/1996EP0719013A2 DC offset correction circuit
06/21/1996CA2161167A1 Dc offset correction circuit
06/19/1996EP0716788A1 Apparatus for performing frequency conversion in a communication system
06/19/1996CN1125017A Terrestrial and satellite television reception tuner
06/19/1996CN1125016A Direct conversion tuner
06/12/1996EP0198009B1 Current source with adjustable temperature coefficient
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