Patents
Sitemap › H03 - Basic electronic circuitry › H03D - Demodulation or transference of modulation from one carrier to another › H03D 3 - Demodulation of angle-modulated oscillations
Patents for H03D 3 - Demodulation of angle-modulated oscillations (6,449)
03/1999
03/25/1999DE19741181A1 Filter device for demodulated quadrature amplitude modulated signal
03/17/1999EP0901714A1 An apparatus, method and article of manufacture for carrier frequency compensation in an fm radio receiver
03/16/1999US5883548 Demodulation system and method for recovering a signal of interest from an undersampled, modulated carrier
03/10/1999EP0901223A2 Receiver for mobile telephones
03/10/1999EP0900481A2 A frequency conversion circuit
03/09/1999US5881376 Digital calibration of a transceiver
03/02/1999US5878089 Coherent signal detector for AM-compatible digital audio broadcast waveform recovery
02/1999
02/24/1999CN1209223A Digital calibration of a transceiver
02/18/1999WO1998040968A3 A frequency conversion circuit
02/18/1999DE19743272C1 Offset compensation arrangement for mixer
02/16/1999US5872815 Apparatus for generating timing signals for a digital television signal receiver
02/16/1999US5872538 Frequency domain correction of I/Q imbalance
02/04/1999WO1999005781A1 Method and apparatus for converting a wideband if signal to a complex (quadrature) baseband signal
02/04/1999CA2297734A1 Method and apparatus for converting a wideband if signal to a complex (quadrature) baseband signal
01/1999
01/26/1999US5864310 Wireless receiver with offset compensation using flash-ADC
01/20/1999EP0892493A1 Amplitude and phase demodulator circuit for signals with very low modulation index
01/19/1999CA2161057C Soft decision digital communication method and apparatus
01/14/1999WO1998043357A3 Wireless receiver with offset compensation using flash-adc
01/12/1999US5859883 Subscriber unit for wireless digital subscriber communication system
01/12/1999US5859607 Receiver with digital processing of a phase-splitted input signal
01/12/1999CA2152705C Nuclear magnetic resonance receiver, method and system
01/12/1999CA2101323C Apparatus and method for direct phase digitizing
01/07/1999WO1999000893A1 Digital fm demodulator
01/07/1999DE19727581A1 Digitaler FM-Demodulator The digital FM demodulator
01/06/1999CN1204187A 无线电接收系统 Radio receiving system
01/05/1999US5857004 Digital data receiver
12/1998
12/30/1998WO1998059414A1 A method and apparatus for eliminating audio clicks in a radio receiver
12/30/1998CN1203719A Digital demodulator
12/30/1998CA2235064A1 Digital demodulator
12/29/1998US5854816 Loop back device of packet communication T1 network
12/23/1998CN1202768A Direct conversion receiver
12/23/1998CN1202767A Direct conversion receiver capable of clearing DC offsed voltage
12/17/1998WO1998057469A1 Receiver for independent sideband signals
12/16/1998EP0884836A1 In-phase quadrature signal regeneration
12/15/1998US5850164 FM demodulation and frequency tuning for a phase-locked loop
12/15/1998US5850161 Digital FM demodulator using pulse generators
12/09/1998EP0883237A1 Radio receiver and method of operation
12/08/1998US5847620 Dielectric resonator phase shifting frequency discriminator
12/08/1998CA2148604C Method of recovering a frequency modulated signal
12/03/1998WO1998054832A1 Apparatus for converting frequency of an electric signal to voltage
11/1998
11/25/1998CN1200209A A zero-IF receiver
11/24/1998US5842137 Subscriber unit for wireless digital telephone system
11/24/1998US5841811 Quadrature sampling system and hybrid equalizer
11/24/1998CA2100444C Am-fm combined stereo receiver
11/24/1998CA2099382C Data transmission system receiver having phase-independent bandwidth control
11/18/1998EP0878903A2 Radio receiving system
11/11/1998EP0877476A1 Down conversion mixer
11/10/1998US5835552 Time counting circuit and counter circuit
11/04/1998EP0875988A2 Interference suppression in RF signals
11/04/1998EP0875098A1 Method and circuit arrangement for processing a received signal
11/04/1998CN1040601C FM receiver
11/03/1998US5832043 System and method for maintaining continuous phase during up/down conversion of near-zero hertz intermediate frequencies
11/03/1998US5832027 Spread spectrum modulating and demodulating apparatus for transmission and reception of FSK and PSK signals
10/1998
10/27/1998US5828955 Near direct conversion receiver and method for equalizing amplitude and phase therein
10/27/1998US5828266 Apparatus and methods for setting up a tuning frequency of a PLL demodulator that compensates for dispersion and aging effects of an associated ceramic resonator frequency reference
10/27/1998US5828238 Digital frequency discriminator
10/21/1998EP0872021A1 Universal rf receiver
10/20/1998US5826180 Near homodyne radio frequency receiver
10/20/1998US5825323 Radar sensor
10/15/1998WO1998024202A3 Apparatus and method for block phase estimation
10/13/1998US5822366 Transceiver and method for generating and processing complex I/Q-signals
10/06/1998US5818881 Digital frequency demodulator
10/06/1998US5818381 Electronic viewing aid
10/01/1998WO1998043364A1 A multi-carrier radio system and radio transceiver implementation
10/01/1998WO1998043357A2 Wireless receiver with offset compensation using flash-adc
09/1998
09/30/1998EP0868030A1 Phase-locked loop with phase lock assistance circuit
09/30/1998EP0868020A1 Sound FM demodulator for TV signals and method for sound carrier detection
09/30/1998EP0867066A1 Digital calibration of a transceiver
09/30/1998EP0769222B1 Improved sigma-delta fm demodulator
09/29/1998CA2071624C Frequency discriminator and heterodyne receiver provided with the frequency discriminator for coherent lightwave communications
09/24/1998WO1998042071A1 Radio receiver
09/23/1998EP0865686A1 A zero-if receiver
09/22/1998US5811961 Amplitude and phase adjustment circuit
09/17/1998WO1998040968A2 A frequency conversion circuit
09/16/1998EP0766833B1 Electronic viewing aid
09/15/1998US5808510 Demodulator for the demodulation of a frequency-modulated signal
09/15/1998US5808491 Method and apparatus for sensing a common mode voltage
09/11/1998WO1998032235A3 Receiver apparatus for two frequency bands
09/09/1998EP0863606A1 Direct conversion receiver capable of cancelling DC offset voltages
09/08/1998US5805018 High-speed demodulating method of burst data and apparatus for same
09/03/1998WO1998038799A1 Direct-conversion tuner integrated circuit for direct broadcast satellite television
09/01/1998US5802463 Apparatus and method for receiving a modulated radio frequency signal by converting the radio frequency signal to a very low intermediate frequency signal
09/01/1998US5802462 FM-PM receivers with frequency deviation compression
08/1998
08/25/1998US5799037 Signal processing apparatus
08/18/1998US5796673 Delay locked loop implementation in a synchronous dynamic random access memory
08/18/1998CA2097042C Fm-pm receivers with increased sensitivity
08/12/1998CN1190294A FM demodulation circuit
08/11/1998US5793799 Switchable circuit for processing and demodulating digital and analog signals
08/11/1998US5793251 Demodulator circuit using gyrator circuit
08/04/1998CA2126843C Peak amplitude detector
07/1998
07/29/1998CN1189261A High-frequency signal receiver
07/29/1998CN1189023A Device for determining digital single frequency deviation and receiver
07/28/1998US5787126 Detector and receiving and transmitting apparatus
07/28/1998US5787125 Apparatus for deriving in-phase and quadrature-phase baseband signals from a communication signal
07/28/1998US5787124 Quadrature detector and amplitude error correction method for quadrature detector
07/28/1998US5786726 Device of the phase-locked loop type for demodulating a frequency-modulated signal
07/23/1998WO1998032235A2 Receiver apparatus for two frequency bands
07/23/1998WO1998032221A1 Method and apparatus for compensating for imbalances between quadrature signals
07/23/1998DE19801527A1 Multisystem reception demodulator for transmission signal
07/21/1998US5784686 IQ combiner technology in modulated backscatter system
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