Patents
Patents for H03D 13 - Circuits for comparing the phase or frequency of two mutually-independent oscillations (1,662)
10/1982
10/12/1982US4354124 Digital phase comparator circuit
09/1982
09/29/1982EP0060862A1 Generator circuit of a regulation voltage function of a differential frequency or phase and utilization of such circuit.
09/15/1982EP0059773A1 Digital circuit delivering a binary signal whenever two signals have a predetermined frequency ratio, and its use in colour television receivers
08/1982
08/24/1982CA1130399A1 Digital phase comparing apparatus
07/1982
07/13/1982US4339726 Demodulator of angle modulated signal operable by low power voltage
06/1982
06/23/1982EP0054322A1 Phase sensitive detector
04/1982
04/27/1982CA1122660A1 Automatic fine tuning circuit
04/15/1982WO1982001289A1 Generator circuit of a regulation voltage function of a differential frequency or phase and utilization of such circuit
03/1982
03/30/1982US4322643 Digital phase comparator with improved sensitivity for small phase differences
01/1982
01/26/1982US4313089 Precision quadrature analog phase detector
12/1981
12/15/1981CA1114462A1 Signal detector including sample and hold circuit with reduced offset error
12/08/1981US4305040 Phase detection system
11/1981
11/25/1981EP0040273A1 Phase detector for television tuning systems and the like
10/1981
10/13/1981CA1110715A1 Digital phase comparison apparatus
09/1981
09/22/1981US4291274 Phase detector circuit using logic gates
08/1981
08/25/1981US4286223 Wideband digital frequency discriminator and phase and frequency detector
08/11/1981US4283792 Automatic fine tuning circuit
07/1981
07/28/1981US4281259 Digital phase comparing apparatus
07/07/1981US4277754 Digital frequency-phase comparator
06/1981
06/30/1981US4276512 Phase detector for phase locked loops
05/1981
05/20/1981EP0028675A1 CCD integrated circuit
05/12/1981US4267514 Digital phase-frequency detector
05/05/1981US4266245 Differential amplifier current repeater
04/1981
04/22/1981EP0027289A1 Digital signal transmission system
02/1981
02/11/1981EP0023735A1 Circuit arrangement for comparing two alternating voltages of the same frequency
12/1980
12/30/1980US4242602 Phase comparator circuit with gated isolation circuit
12/02/1980US4237423 Digital phase detector
11/1980
11/25/1980US4236117 FM Detector using a phase shift network and an analog multiplier
10/1980
10/21/1980US4229759 Signal detector including sample and hold circuit with reduced offset error
09/1980
09/09/1980CA1085470A1 Angle-modulation detector, for example, a quadrature type phase detector
08/1980
08/05/1980US4216396 Sample-hold phase detector
05/1980
05/28/1980EP0011128A1 Digital phase comparing apparatus
05/06/1980US4201948 Phase-locked loop clock pulse extraction circuit
04/1980
04/29/1980US4200845 Phase comparator with dual phase detectors
01/1980
01/29/1980CA1070764A1 Frequency-comparing devices
01/15/1980US4184122 Digital phase comparison apparatus
01/08/1980CA1069592A1 Digital phase comparator
12/1979
12/11/1979US4178308 Process for the preparation of 1-amino-8-naphthol-3,6-disulphonic acid (H-acid)
08/1979
08/07/1979US4163951 Frequency discriminator producing at least one of two pulse sequences representing in average the result of frequency discrimination
06/1979
06/26/1979CA1057367A1 Fm demodulator
06/19/1979CA1056912A1 Phase comparator and process for the operation thereof
05/1979
05/15/1979US4155045 Method and apparatus for detection of phase difference between two electrical signals
04/1979
04/24/1979US4151473 Phase detector circuit
02/1979
02/07/1979EP0000493A1 Process for the preparation of 1-amino-8-hydroxy-naphthalene-3,6-disulphonic acid (H acid).
01/1979
01/23/1979CA1047126A1 Phase-locked loop having a slight phase offset error
12/1978
12/26/1978CA1045219A1 Phase demodulator
11/1978
11/28/1978US4127825 Linear frequency discriminator
10/1978
10/10/1978US4119919 Frequency discriminator circuit
09/1978
09/19/1978US4115728 Frequency-comparing devices
08/1978
08/08/1978US4105947 Pulse wave phase and frequency detector
07/1978
07/11/1978US4100500 Angle-modulation detector having push-pull input applied through high-pass filters
01/1978
01/10/1978US4068181 Digital phase comparator
10/1977
10/18/1977US4054840 FM demodulator using multiplier to which delayed and undelayed input signals are applied
09/1977
09/27/1977US4051440 Phase locked demodulator
08/1977
08/02/1977US4039967 Phase-locked loop having a slight phase offset error
08/02/1977US4039859 Phase comparator and process for the operation thereof
07/1977
07/12/1977US4035727 Multichannel radio transmitter with means to prevent abnormal wave radiation
06/1977
06/21/1977US4031478 Frequency comparator
02/1977
02/01/1977US4006423 Phase detector
11/1976
11/02/1976US3989931 Pulse count generator for wide range digital phase detector
07/1976
07/20/1976US3970868 Phase comparator
04/1976
04/06/1976US3949314 Phase demodulator
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