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)
08/1983
08/09/1983CA1151735A1 Broadcast signal receiving system for directly recovering the modulating signal from a received modulated high frequency signal
08/03/1983EP0084876A2 Demodulator arrangement for signals which are frequency-modulated on a carrier wave
07/1983
07/26/1983US4395735 FM Counter detector
06/1983
06/28/1983US4390845 Gated quadrature detector biased to switch on sinusoidal zero crossings
06/23/1983WO1983002207A1 Digital coherent psk demodulator and detector
06/14/1983US4388595 Apparatus and method for removing bias distortion from a product demodulator
06/07/1983US4387470 Receiver input stage with an improvement of the signal to noise ratio
06/01/1983EP0080157A2 Method and arrangement for demodulating frequency-modulated signals using sampled values
06/01/1983EP0080014A2 Digital demodulator for frequency-modulated signals
05/1983
05/18/1983EP0079097A1 Auto-tuned frequency discriminator
04/1983
04/27/1983EP0077567A2 Modulator-demodulator for obtaining and demodulating frequency-modulated signal
04/06/1983EP0076095A1 Direct conversion radio receiver for F.M. signals
04/05/1983CA1144257A1 Coherent phase shift keyed demodulator for power line communication systems
03/1983
03/30/1983EP0075071A2 Filter and demodulation circuit
03/23/1983EP0074858A2 Radio receiver
03/22/1983US4377728 Phase locked loop with improved lock-in
03/17/1983WO1983000974A1 High-sensitivity fm demodulating system
03/17/1983WO1983000973A1 High-sensitivity fm demodulating system
03/16/1983EP0073929A2 Integrable signal processing semiconductor circuit
03/15/1983CA1143013A1 Receiver for frequency modulated signals having two quadrature channels
03/09/1983EP0073620A2 FM counter detector
03/01/1983US4375618 Linearized FM quadrature detector
03/01/1983CA1142237A1 Radioelectric apparatus for collecting data coming from several stations
02/1983
02/23/1983EP0072403A2 Demodulator for spread spectrum frequency-modulated signals
02/09/1983EP0071294A1 Frequency demodulator
02/01/1983US4371749 Circuit for processing angle modulated broadcast signals
01/1983
01/18/1983CA1139846A1 Receiver input circuit
01/11/1983CA1139377A1 Fm detecting circuit
01/05/1983EP0068579A1 Arrangement for demodulating a frequency modulated input signal
01/05/1983EP0068571A1 Digital demodulation circuit for a frequency-modulated signal, application of this circuit to the realisation of a demodulator stage for the chrominance signal of a television receiver, and television receiver comprising such a stage
12/1982
12/14/1982CA1137561A1 Frequency to voltage converter for cardiac communication system
12/07/1982US4362999 AM Stereo phase modulation decoder
12/07/1982US4362998 FM Detector using a phase shift network and an analog multiplier
11/1982
11/17/1982EP0064819A1 An FM signal demodulation system
11/16/1982US4359694 FM Demodulator for a plurality of carrier frequencies
11/16/1982CA1135801A1 Quadrature transposition stage
11/09/1982CA1135403A1 Aft circuit
10/1982
10/27/1982EP0063204A1 FM demodulator circuit
10/26/1982US4356415 Frequency discriminator utilizing a transferred electron device
10/20/1982EP0062872A1 Receiving system
10/05/1982US4353034 FM Detecting circuit
09/1982
09/29/1982EP0061377A1 Digital signal demodulator and a colour television receiver or system comprising such a demodulator
09/22/1982EP0060772A1 Demodulator for a frequency-modulated signal
09/21/1982US4351032 Frequency sensing circuit
09/21/1982US4350957 Pulse counter-type FM detector
09/16/1982WO1982003143A1 Phase locked loop with improved lock-in
09/14/1982US4349756 Phase detector with low offsets
09/02/1982WO1982002987A1 Phase detector with low offsets
09/01/1982EP0059000A1 A direct modulation FM demodulator
08/1982
08/24/1982CA1130450A1 Phase tracking loop circuit
08/03/1982CA1129094A1 Fm signal demodulator with defect detection
07/1982
07/27/1982US4342000 FM Detecting circuit
07/13/1982US4339726 Demodulator of angle modulated signal operable by low power voltage
07/06/1982EP0045801A4 Digital pseudo continuous tone detector.
06/1982
06/01/1982CA1124850A1 Aft circuit
05/1982
05/04/1982US4328576 Wide band demodulator of phase modulated signals
04/1982
04/27/1982CA1122660A1 Automatic fine tuning circuit
03/1982
03/31/1982EP0048661A1 Demodulator for a frequency-modulated signal
03/23/1982US4321624 AFT Circuit
03/16/1982US4320531 Time shared frequency conversion system
03/03/1982EP0046682A1 Single channel duplex communication system
02/1982
02/24/1982EP0046213A1 Method and circuit for demodulating frequency-modulated signals using sampled values
02/17/1982EP0046103A1 Frequency-modulated signal-demodulation method, and demodulator putting this method into operation
02/17/1982EP0045801A1 Digital pseudo continuous tone detector.
02/16/1982US4316108 Tracking filter for FM threshold extension
02/16/1982CA1118498A1 Demodulator for frequency modulated signals
01/1982
01/19/1982US4311964 Coherent phase shift keyed demodulator for power line communication systems
12/1981
12/30/1981EP0042641A1 Frequency demodulator using a delay circuit, the delay of which varies according to the received frequency
12/29/1981USRE30839 Monostable multivibrator
12/29/1981US4308471 Product circuit
12/08/1981US4305040 Phase detection system
12/01/1981US4303888 Demodulation device for frequency modulated electrical signals
11/1981
11/24/1981US4302817 Digital Pseudo continuous tone detector
11/24/1981US4302738 Noise rejection circuitry for a frequency discriminator
11/04/1981EP0039275A1 Combined synthesis and demodulation device for a receiver of frequency-modulated waves, and receiver comprising it
11/04/1981EP0038827A1 Improved tracking filter for fm threshold extension
10/1981
10/27/1981US4297601 Monostable multivibrator circuit and FM detector circuit employing predetermined load resistance and constant current to increase response rate of differential transistor pair
10/06/1981US4293818 Frequency modulation threshold extension demodulator utilizing frequency compression feedback with frequency drift correction
10/06/1981US4293781 Monostable multivibrator
09/1981
09/29/1981US4292549 Monostable multivibrator and FM detector circuit employing differential transistor pair (threshold) trigger circuit to avoid interference signal operation
09/09/1981EP0035166A1 Digital receiver
09/08/1981US4288876 Demodulator for frequency modulated signals
08/1981
08/20/1981WO1981002353A1 Digital pseudo continuous tone detector
08/18/1981CA1107354A1 Frequency-voltage converter
08/11/1981US4283792 Automatic fine tuning circuit
08/04/1981US4282490 Pulse count type FM demodulator circuit
08/04/1981US4282448 Monostable multivibrator and FM detector circuit employing common emitter transistor amplifier with plural emitter resistors to avoid circuit operation from signal noise
07/1981
07/21/1981US4280100 Time modulation pulse averaging demodulator
07/14/1981US4278998 Sound channel circuit for frequency-modulated signals
06/1981
06/09/1981US4272726 Differential FM detector with series tuned filter
05/1981
05/27/1981EP0029376A2 Frequency modulated signal demodulation process and demodulator putting this process into operation
05/26/1981US4270221 Phaselocked receiver with orderwire channel
05/20/1981EP0028675A1 CCD integrated circuit
05/19/1981US4268915 Universal automotive electronic radio with display for tuning or time information
05/19/1981CA1101537A2 Facsimile receiver with improved fm demodulator
04/1981
04/28/1981US4264975 Receiver for frequency modulated signals having two quadrature channels
04/28/1981US4264867 Demodulator circuit for frequency-modulated signal
04/21/1981US4263614 Phase tracking loop circuit
04/21/1981US4263554 Frequency discriminator apparatus
04/08/1981EP0026624A2 A coherent phase demodulator for power line communication systems
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