Patents
Sitemap › H03 - Basic electronic circuitry › H03D - Demodulation or transference of modulation from one carrier to another › H03D 13 - Circuits for comparing the phase or frequency of two mutually-independent oscillations
Patents for H03D 13 - Circuits for comparing the phase or frequency of two mutually-independent oscillations (1,662)
03/1993
03/03/1993EP0529836A1 Integrating phase detector
02/1993
02/03/1993EP0525798A2 Integrated-circuit sampled-and-hold phase detector with integrated current setting resistor
02/02/1993US5184063 Three phase reversal detection system
12/1992
12/22/1992US5173927 Frequency detector system on a digital phase locked loop
12/02/1992CN1019339B Regulating circuit
10/1992
10/20/1992US5157354 Phase-locked loop IC having ECL buffers
10/20/1992US5157290 Phase detector
09/1992
09/30/1992EP0506501A1 Phase-comparator with wide dynamic range
09/09/1992EP0502631A2 Sampling phase detector
08/1992
08/26/1992EP0500014A2 Phase detector
08/25/1992US5142555 Phase detector
08/19/1992EP0168426B1 Multiple frequency digital phase locked loop
08/04/1992US5136254 FM demodulator circuit whose demodulation output is decreased in distortion
08/04/1992US5136253 Phase comparator having two different phase comparison characteristics
07/1992
07/21/1992CA1305519C Phase detector circuit for periodic signal using three sampling data
06/1992
06/23/1992US5124594 Digital phase comparator for use in a phase lock loop
06/17/1992EP0490178A1 Lock detector for a digital phase locked loop
06/09/1992US5121010 Phase detector with deadzone window
06/02/1992US5119037 High speed phase-lock loop device
05/1992
05/19/1992US5115409 Multiple-input four-quadrant multiplier
05/12/1992CA1300697C Extended range phase detector
04/1992
04/14/1992US5105273 Video intermediate frequency signal processing circuit
04/14/1992US5105160 Phase comparator using digital and analogue phase detectors
04/07/1992US5103192 Phase-difference detecting circuit and method of reducing power consumption in a pll system
04/07/1992US5103191 Circuit configuration for phase locking
04/02/1992WO1992000558A3 Apparatus for generating multiple phase clock signals and phase detector and recovery apparatus therefor
03/1992
03/18/1992EP0475468A2 Phase comparator for a digital phase locked loop
02/1992
02/12/1992CN1058680A Direct phase digitization
02/05/1992EP0468989A1 Control circuit.
02/05/1992CN1058498A 相位检测器 Phase detector
01/1992
01/28/1992US5084669 Direct phase digitization
01/09/1992WO1992000558A2 Apparatus for generating multiple phase clock signals and phase detector and recovery apparatus therefor
01/08/1992EP0464814A2 Non-coherent PSK demodulator
12/1991
12/05/1991DE4017491A1 Phase lock loop radio - has comparison integrator, with input current progressively increased with closing time, or phase error via resistance network
11/1991
11/27/1991EP0458282A2 Phase-lock loop device operable at a high speed
11/06/1991EP0455218A1 Method and apparatus for measuring a phase-modulated signal
10/1991
10/22/1991US5059833 Phase detector suitable for use in phase lock loop
10/09/1991EP0450817A2 Digital phase detector arrangements
10/02/1991EP0449659A1 Linearized three state phase detector
10/01/1991US5053649 Method and apparatus for high speed phase detection
09/1991
09/11/1991EP0446190A2 Direct phase digitization
09/09/1991WO1991014329A1 Direct phase digitization
08/1991
08/13/1991US5039889 Phase comparison circuit
07/1991
07/30/1991CA1287124C Phase detector for amplitude modulated radio frequency signals containing a low frequency waveform
06/1991
06/19/1991EP0246269B1 Digital phase-frequency discriminator comprising simplified reset means
06/05/1991EP0430605A2 Frequency detector based on a digital phase lock loop
05/1991
05/29/1991EP0428869A1 Phase detector suitable for use in phase lock loop
05/21/1991US5017889 Digital phase-locked loop using a tapped delay line in a phase meter
04/1991
04/16/1991CA1283176C Phase comparator
03/1991
03/20/1991EP0417808A2 Phase comparator having two different comparison characteristics
02/1991
02/27/1991EP0414305A2 Phase comparator circuit
01/1991
01/30/1991EP0410029A1 Phase synchronization circuit arrangement using feedback
01/30/1991EP0410022A1 Phase and frequency detector
01/25/1991WO1991002405A1 Phase detector
01/23/1991EP0409220A2 Phase locked loop for the extraction of a clock signal for data transmission systems
01/23/1991EP0408780A1 Digital phase detector
01/22/1991US4987373 Monolithic phase-locked loop
12/1990
12/19/1990EP0403006A1 Digital phase-locked loop (PLL)
12/19/1990EP0402736A2 Phase-difference detecting circuit
12/13/1990WO1990015482A1 Dual state phase detector having frequency steering capability
12/04/1990US4975650 Phase detector
12/04/1990US4975594 Frequency detector circuit
11/1990
11/13/1990US4970475 Linearized three state phase detector
11/13/1990US4970469 Phase detector and frequency demodulator including such a phase detector
11/01/1990WO1990013172A1 Control circuit
10/1990
10/31/1990CN1046633A Regulating circuit
10/23/1990US4965815 Phase detection circuit for stepwise measurement of a phase relation
10/16/1990US4963831 Self adjusting frequency demodulating integrated circuit
10/16/1990US4963817 Method and apparatus for detecting a phase difference between two digital signals
10/03/1990EP0390250A1 Phase detectors
09/1990
09/25/1990US4959617 Dual state phase detector having frequency steering capability
09/25/1990CA1274587A1 Digital phase-frequency discriminator comprising simplified reset means and associated method
08/1990
08/28/1990US4952883 Phase detector circuit for periodic signal using three sampling data
07/1990
07/10/1990US4940952 Phase and frequency comparator circuit for phase locked loop
05/1990
05/30/1990EP0370539A1 Phase detector and frequency demodulator including such a phase detector
05/23/1990EP0369858A1 Phase and frequency detectors having a high dynamic range and low noise characteristics
05/22/1990US4928026 Digital phase comparing circuit
05/02/1990EP0366265A2 Phase detector for amplitude modulated radio frequency signals containing a low frequency waveform
04/1990
04/24/1990US4920278 For comparing two input signals
04/05/1990WO1990003693A1 Sample-and-hold phase detector for use in a phase locked loop
03/1990
03/14/1990CN1007182B Wide range digital phase/frequency detector
03/07/1990EP0356556A1 Multi-input four quadrant multiplier
02/1990
02/28/1990EP0355330A2 Method and arrangement for determining the phase difference between two carrier signals
02/27/1990US4904948 Phase comparator circuit
02/20/1990US4902920 Extended range phase detector
02/07/1990EP0353807A1 Phase detection circuit for stepwise measurement of a phase relation
12/1989
12/19/1989US4888558 Phase detector for amplitude modulated radio frequency signals containing a low frequency waveform
12/06/1989EP0344495A2 Phase detector
11/1989
11/28/1989US4884035 Wide range digital phase/frequency detector
11/08/1989EP0340846A1 Frequency demodulation circuit
10/1989
10/24/1989US4876699 High speed sampled data digital phase detector apparatus
09/1989
09/26/1989US4870303 Phase detector
09/19/1989US4868512 Phase detector
09/06/1989EP0331016A2 Phase detector circuit for periodic signal using three sampling data
09/05/1989US4864254 High frequency phase detector using FET bridge
09/05/1989US4864252 Sample-and-hold phase detector for use in a phase locked loop
07/1989
07/25/1989US4851784 Phase comparators
07/18/1989US4849704 Duty cycle independent phase detector
07/05/1989EP0323124A2 Digital phase comparing circuit
07/04/1989US4845438 Phase comparison circuit
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