Patents for H03D 3 - Demodulation of angle-modulated oscillations (6,449)
08/1995
08/23/1995CN1029579C Apparatus and method of DC offset correction for receiver
08/22/1995US5444744 Phase locked loop for synchronizing with carrier wave
08/22/1995US5444736 Radio communication apparatus having an automatic frequency control circuit for controlling a transmission frequency on the basis of a reception frequency
08/22/1995US5444416 Digital FM demodulation apparatus demodulating sampled digital FM modulated wave
08/22/1995US5444311 Integrated circuit and its connecting circuit
08/08/1995US5440586 Receiver having reduced influence of oscillator radiation and parasitic crosstalk effects on gain control
08/08/1995US5440269 Digital FM demodulator having an address circuit for a lookup table
08/01/1995US5438692 Direct conversion receiver
07/1995
07/25/1995US5436591 Demodulator for radio data signals
07/18/1995CA1336337C Digital fm demodulator with a reduced sampling rate
07/12/1995EP0662267A1 If filter arrangement for fm reception signals
07/06/1995WO1995018508A1 Circuit for the acquisition of a carrier signal by applying a substitute pilot to a synchronous demodulator
07/05/1995CN1104820A Detectors
06/1995
06/28/1995EP0660506A1 FM Signal demodulator
06/28/1995EP0660505A2 Error-free pulse noise canceler used in FM tuner
06/14/1995EP0658007A1 Circuit for the analog-digital conversion of IF-signals
06/14/1995CN1103752A FM Receiver
06/06/1995US5423075 Combined radio transmission and reception apparatus with a PLL circuit
06/06/1995US5422889 Offset correction circuit
06/01/1995DE4340012A1 Digital stereo signal demodulator with cordic demodulator
06/01/1995DE4193233C2 Einrichtung und Verfahren zur Gleichstromversatz-Korrektur für einen Empfänger Apparatus and method for DC offset correction for a receiver
05/1995
05/31/1995EP0573409B1 Interpolative analog/digital converter for band-pass signals
05/23/1995US5418815 Receiver adaptively operable for multiple signal transmission systems
05/23/1995US5418489 Method of recovering a frequency modulated signal
05/18/1995WO1995013675A1 Digital methods and apparatus for reverse link signal detection and recovery in a mobile data base station
05/16/1995US5416805 Receiver for receiving frequency modulated signals and having a controlled acquisition band
05/10/1995EP0591260B1 Arrangement for a modulator
05/09/1995US5414741 Low phase noise oscillator frequency control apparatus and method
05/09/1995US5414735 Method of processing digital signals
05/09/1995US5414385 Dual mode FM quadrature detector
05/09/1995US5414383 Four quadrant multiplier circuit and a receiver including such a circuit
04/1995
04/25/1995US5410368 Carrier acquisition by applying substitute pilot to a synchronous demodulator during a start up interval
04/20/1995WO1995010879A1 Method of recovering a frequency modulated signal
04/19/1995EP0649226A2 Circuit arrangement for long-wave radio broadcast control receiver
04/19/1995CA2118293A1 Monolithic uhf/l-band direct digital receiver
04/18/1995US5408196 Signal receiving device
04/18/1995US5408195 FM demodulation circuit
04/11/1995US5406218 Phase demodulator receiving inputs from phase detector and binary phase detector
04/11/1995CA2087719C Frequency modulated synthesizer using low frequency offset mixed vco
04/06/1995WO1995009480A1 Fm threshold expansion detector circuit
04/05/1995EP0640261A4 Data transmission delaying circuit using time-multiplexed latch enable signals.
04/05/1995EP0486596B1 Self-supporting thin-film filament detector, process for its manufacture and its applications to gas detection and gas chromatography
04/05/1995CN1101180A 频率解调电路 Frequency demodulation circuit
04/04/1995US5404589 FM receiver with dynamic intermediate frequency (IF) filter tuning
04/04/1995US5404587 AFC circuit and IC of the same adapted for lower heterodyne conversion and upper heterodyne conversion
03/1995
03/30/1995DE4410608C1 Arrangement for determining the frequency offset in a demodulator for signals with two-dimensional modulation
03/30/1995DE4332767A1 Method for controlling an FM receiver with a re-adjustable IF filter
03/29/1995EP0645891A1 Frequency tuning for a phase locked loop
03/29/1995EP0645882A1 Demodulation of FM carrier
03/29/1995EP0645881A1 Demodulation of FM audio carrier
03/23/1995DE4420376A1 Modulator Modulator
03/23/1995DE4410607C1 Arrangement for determining the frequency offset in a demodulator for signals with two-dimensional modulation
03/21/1995US5400366 Quasi-synchronous detection and demodulation circuit and frequency discriminator used for the same
03/21/1995US5399964 Peak amplitude detector for use in a synchronized position demodulator
03/15/1995EP0643477A2 Demodulation of an IF-signal by a sigma-delta converter
03/15/1995EP0643476A1 Direct conversion receiver
03/14/1995US5398080 Television receiver for terrestrial broadcasting
03/14/1995US5398002 Automatic frequency control system by quadrature-phase in frequency or phase demodulating system
03/09/1995WO1995006983A1 A method for determining desired components of quadrature modulated signals
03/08/1995EP0642216A1 Tracking filter and quadrature-phase reference generator
03/07/1995US5396656 Method for determining desired components of quadrature modulated signals
03/07/1995US5396521 Receiver capable of reducing power consumption in a PLL circuit
03/07/1995US5396520 Digital RF receiver
03/01/1995EP0640811A1 Sinusoidal signal demodulation
03/01/1995EP0640261A1 Data transmission delaying circuit using time-multiplexed latch enable signals
02/1995
02/15/1995EP0638992A1 Frequency demodulation circuit
02/07/1995CA2022128C Subscriber unit for wireless digital subscriber communication system
02/02/1995WO1995003650A1 If filter arrangement for fm reception signals
01/1995
01/18/1995EP0634855A1 Automatic frequency control for direct-conversion FSK receiver
01/18/1995EP0613595A4 Digital demodulator.
01/18/1995CN1027477C Digit phase detector
01/10/1995CA2038585C Signal detecting circuit for detecting a signal specified in a designated frequency
01/03/1995US5379323 DQPSK delay detection circuit
12/1994
12/27/1994US5376891 Phase-sensitive rectifier arrangement with integration effect
12/22/1994WO1994029949A1 Terrestrial and satellite television reception tuner
12/22/1994WO1994029948A1 Direct conversion tuner
12/14/1994EP0629041A1 Automatic frequency control apparatus and method therefor
12/14/1994EP0629040A1 Method and apparatus for IF demodulation of a high frequency input signal
12/14/1994EP0358649B1 Arrangement for filtering an incoming fm signal
12/08/1994DE4318276A1 Television tuner for terrestrial reception and satellite reception
12/07/1994EP0627138A1 Demodulator for radio data signals.
12/03/1994CA2124879A1 Quadrature fm demodulator apparatus
11/1994
11/29/1994US5369790 Radio receiver
11/29/1994US5369470 FM receiver which detects and responds to receiving and interference states
11/29/1994US5369404 Combined angle demodulator and digitizer
11/22/1994US5367538 Apparatus and method for direct phase digitizing
11/17/1994EP0624959A1 FM receiver with an oversampling circuit
11/09/1994EP0623993A2 Four quadrant multiplier circuit and a receiver including such a circuit
11/08/1994CA1332961C Multiple reuse of an fm band
11/02/1994EP0622893A1 Method and apparatus for normalising components of a complex signal
11/01/1994US5361408 Direct conversion receiver especially suitable for frequency shift keying (FSK) modulated signals
11/01/1994US5361036 Complex digital demodulator employing Chebychev-approximation derived synthetic sinusoid generation
10/1994
10/11/1994US5355172 Method and apparatus for sampling a reference signal
10/06/1994DE4417052A1 Method for digital demodulation of frequency-modulated signals
10/06/1994DE4310462A1 Method for demodulating frequency-modulated signals
10/05/1994EP0618676A1 Tunable device
10/05/1994EP0618672A1 Frequency modulated signals demodulation method
09/1994
09/29/1994DE4309684A1 Method for demodulating frequency-modulated signals
09/28/1994EP0617507A1 Frequency modulated signals demodulation method
09/21/1994EP0616434A1 Digital superheterodyne receiver and method for baseband filtering
1 ... 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 ... 65