Patents
Patents for H03D 13 - Circuits for comparing the phase or frequency of two mutually-independent oscillations (1,662)
06/1996
06/12/1996EP0716501A1 Phase comparator of a digital signal and a clock signal, and corresponding phase locked loop
05/1996
05/01/1996EP0709966A2 Phase detector with ternary output
04/1996
04/23/1996US5511100 Method and apparatus for performing frequency detection
04/09/1996US5506874 Phase detector and method
04/02/1996US5504790 For receiving a sequence of digital samples
03/1996
03/27/1996EP0703688A1 Phasedetector for carrier recovery control
03/06/1996EP0700163A2 Method and apparatus for reducing jitter in a phase locked loop circuit
02/1996
02/22/1996DE4443417C1 Phase detector for data receiver
02/14/1996EP0696862A1 Phasedetector for control of carrier recovery
02/13/1996US5491439 Method and apparatus for reducing jitter in a phase locked loop circuit
01/1996
01/23/1996US5487093 Autoranging digital analog phase locked loop
01/16/1996US5485125 Phase-locked oscillator arrangement
01/16/1996US5485108 Delayed detection type demodulator
01/16/1996US5484987 Delayed detection type demodulator
01/11/1996WO1996001007A1 Digital phase comparator
01/09/1996US5483201 Synchronization circuit using a high speed digital slip counter
12/1995
12/27/1995EP0689315A1 Phase comparator
12/26/1995US5479458 Digital phase shifter including 1/N for phase detect and subsequent VCO adjust
11/1995
11/07/1995US5465075 Phase-locked loop circuit with minimum output jitter and maximum frequency stability
11/07/1995US5465059 Method and apparatus for timing acquisition of partial response class IV signaling
11/02/1995EP0663117A4 Timing recovery circuit for synchronous waveform sampling.
10/1995
10/03/1995US5455935 Clock synchronization system
10/03/1995US5455540 Modified bang-bang phase detector with ternary output
10/03/1995CA2011029C Frequency detector circuit
09/1995
09/13/1995EP0483260B1 Phase detector
09/06/1995EP0670629A1 Phase locked loop
08/1995
08/09/1995EP0474671B1 Dual state phase detector having frequency steering capability
08/08/1995US5440274 Phase detector circuit and PLL circuit equipped therewith
08/02/1995EP0665650A1 Low voltage high speed phase frequency detector
08/01/1995US5438285 Phase/frequency comparator
07/1995
07/25/1995US5436596 PLL with stable phase discriminator
07/19/1995EP0663117A1 Timing recovery circuit for synchronous waveform sampling
07/11/1995US5432826 Digital phase comparator and phase-locked loop
07/05/1995CN1104820A Detectors
07/05/1995CN1104818A Synchronization circuit using a high speed digital slip counter
05/1995
05/25/1995CA2117935A1 All digital if-to-baseband signal converter
05/24/1995EP0654895A2 An all digital if-to-baseband signal converter
05/16/1995US5416484 Differential comparator and analog-to-digital converter comparator bank using the same
04/1995
04/25/1995US5410195 Ripple-free phase detector using two sample-and-hold circuits
04/05/1995EP0647018A1 Digital phase comparator
04/05/1995EP0647017A1 Synchronization circuit using a high speed digital slip counter
02/1995
02/01/1995EP0637137A2 Low-power, jitter-compensated phase locked loop and method therefor
01/1995
01/18/1995EP0634855A1 Automatic frequency control for direct-conversion FSK receiver
12/1994
12/28/1994EP0536301B1 Method and apparatus for storing a digital signal for use in a synchronous delay line
12/28/1994CN1027211C Direct phase digitization
12/27/1994US5376974 Phase-locked looped synchronous video detector circuit
12/27/1994US5376847 Phase detector and methodology
12/20/1994CA1333631C Digital sample and hold phase detector
12/13/1994US5373255 Low-power, jitter-compensated phase locked loop and method therefor
12/06/1994CA2059273C Phase detector
12/06/1994CA2043054C Phase-lock loop device operable at a high speed
11/1994
11/29/1994US5369374 Differential detection demodulator
11/01/1994US5361312 Method and apparatus for phase evaluation of pattern images used in optical measurement
10/1994
10/25/1994US5359631 Timing recovery circuit for synchronous waveform sampling
09/1994
09/13/1994US5347559 Apparatus and method of data transfer between systems using different clocks
09/07/1994EP0614268A1 Method and apparatus for producing a difference signal between signal frequencies, and for detection of modulation
08/1994
08/31/1994EP0613253A1 Digital phase comparators
08/30/1994US5343097 Phase comparator circuit and phase locked loop (PLL) circuit using the same
08/16/1994US5339408 Method and apparatus for reducing checking costs in fault tolerant processors
08/10/1994EP0609969A2 Synchronous delay line
08/10/1994EP0609967A2 Apparatus for detecting phase errors
07/1994
07/23/1994WO1994017618A1 Instantaneous phase sensitive detector and generator for clock reproducing signal installed in delay detector
07/20/1994EP0606779A2 Improved phase comparator
07/19/1994US5331230 Integrated-circuit sampled-and-hold phase detector with integrated current setting resistor
06/1994
06/14/1994US5321369 Wide-range, wide-bandwidth, high-speed phase detector
06/01/1994EP0599372A1 PLL with stable phase discriminator
05/1994
05/17/1994US5313170 Differential detection demodulator
05/17/1994US5313154 Apparatus for detecting a frequency deviation between two frequency sources
04/1994
04/26/1994US5307028 Phase-and-frequency mode/phase mode detector with the same gain in both modes
04/26/1994US5307020 Phase comparator device with wide dynamic range
04/14/1994WO1994008394A1 Timing recovery circuit for synchronous waveform sampling
04/12/1994US5302908 High precision phase comparator and phase locked loop
04/12/1994CA1328493C Phase detector with variable gain amplifier
03/1994
03/29/1994US5298812 Regulating circuit as for controlling the speed of a motor
03/09/1994EP0585806A2 Digital phase comparator and phase-locked loop
02/1994
02/22/1994US5289505 Frequency translation apparatus and method
01/1994
01/25/1994US5281079 Automatic manipulator with reservoir and methods
12/1993
12/29/1993CN1023368C Phase detector
12/14/1993US5271040 Phase detector circuit
11/1993
11/30/1993US5266907 Continuously tuneable frequency steerable frequency synthesizer having frequency lock for precision synthesis
11/30/1993US5266851 Phase detector
11/23/1993US5264802 Circuit and method for monitoring phase error modulation
11/02/1993US5258720 Digital sample and hold phase detector
10/1993
10/12/1993US5252865 Integrating phase detector
10/05/1993US5251014 Circuit for detecting phase error of color burst signal
09/1993
09/28/1993US5248969 Phase comparing and CMI/NRZ decoding apparatus
09/22/1993EP0561718A1 Phase and frequency comparator
08/1993
08/31/1993US5241567 Circuit for demodulating psk modulation signals
08/18/1993EP0556147A2 Three phase reversal detection system
08/14/1993CA2088640A1 Solid state three phase reversal detection circuit
08/03/1993US5233636 Analog and digital phase detector for bit synchronism
07/1993
07/28/1993EP0552601A2 Phase comparator
07/08/1993WO1993013592A1 Phase detector circuit
06/1993
06/30/1993EP0548982A2 Non-coherent PSK demodulator using delaye detection
06/30/1993EP0468989B1 Control circuit
06/14/1993WO1993012603A1 Frequency translation apparatus and method
06/02/1993EP0544109A1 Phase detector circuit and PLL circuit equipped therewith
05/1993
05/25/1993US5214676 Digital phase detector arrangements
05/05/1993EP0540052A1 Ripple-free phase detector using two sample-and-hold circuits
03/1993
03/23/1993US5196804 For producing an output signal
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