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)
03/2001
03/06/2001US6198355 Dual edge-triggered phase detector and phase locked loop using same
02/2001
02/22/2001WO2001013517A2 Loading pump
02/08/2001DE19943956C1 Phase detector uses at least 2 series diodes for comparing phase of input signal with reference signal with tuned capacitors and/or inductances for providing circuit symmetry
01/2001
01/30/2001US6182237 System and method for detecting phase errors in asics with multiple clock frequencies
01/30/2001US6181168 High speed phase detector and a method for detecting phase difference
01/23/2001US6177812 Phase detector
01/09/2001US6172533 Phase and frequency detector with high resolution
01/02/2001US6169774 Phase comparator for determining in which direction the phase of a signal changes on the basis of a rotary vector
12/2000
12/27/2000EP1062725A1 Phase detector
12/19/2000US6163185 Phase frequency detector having instantaneous phase difference output
12/05/2000US6157218 Phase-frequency detection with no dead zone
10/2000
10/31/2000US6140853 Digital phase detector and charge pump system reset and balanced current source matching
10/24/2000US6137332 Clock signal generator and data signal generator
10/04/2000CN1057177C Synchronization circuit using a high speed digital slip counter
10/03/2000US6128359 Phase difference magnifier
09/2000
09/26/2000US6125158 Phase locked loop and multi-stage phase comparator
09/19/2000US6121846 Digital phase comparator without dead zone
09/19/2000US6121804 High frequency CMOS clock recovery circuit
09/13/2000CN1266550A Phase frequency detector having instantaneous phase difference output
09/12/2000US6118730 Phase comparator with improved comparison precision and synchronous semiconductor memory device employing the same
08/2000
08/31/2000DE10002087A1 Phase comparison circuit for converting voltage signals into current signals depending on phase difference has current mirror stage with three transistors, constant current source and resistor
08/22/2000US6107890 Digital phase comparator and frequency synthesizer
08/08/2000US6100722 Phase detector with extended linear range
08/08/2000US6100721 Circuit and method of extending the linear range of a phase frequency detector
07/2000
07/27/2000CA2260456A1 A frequency-locked loop with gated reference and vco inputs
07/26/2000EP1021885A1 Digital phase discrimination based on frequency sampling
07/18/2000CA2171690C Circuit for clock signal extraction from a high speed data stream
07/11/2000US6087857 Clock signal phase comparator
07/11/2000US6087856 Biasing scheme for minimizing output drift in phase comparison and error correction circuits
07/05/2000EP1016218A1 Phase detector for high speed clock recovery from random binary signals
06/2000
06/27/2000US6081572 Lock-in aid frequency detector
06/27/2000US6081569 Method and apparatus for determining the change in frequency of a reference signal
06/20/2000US6078634 Phase-locked loop circuit with a multi-cycle phase detector and multi-current charge pump
06/13/2000US6075832 Method and apparatus for deskewing clock signals
06/13/2000US6075388 Phase detector with extended linear range
06/13/2000US6075387 Phase detector
06/06/2000US6072337 Phase detector
06/06/2000US6072336 Sampling circuit system
05/2000
05/17/2000EP1000466A2 Phase frequency detector having instantaneous phase difference output
05/16/2000US6064236 Phase detector and timing extracting circuit using phase detector
05/16/2000US6064235 Shared path phase detector
05/04/2000WO2000025472A1 Phase difference magnifier
05/02/2000US6058152 Phase comparison method and apparatus for digital signals
04/2000
04/19/2000EP0663117B1 Timing recovery circuit for synchronous waveform sampling
04/18/2000US6051996 Phase detector
04/12/2000CN1250248A Improved phase detector
04/11/2000US6049233 Phase detection apparatus
04/05/2000EP0991193A1 Radio apparatus comprising a frequency synthesiser and phase discriminator for such an apparatus
04/05/2000EP0991181A2 Phase detector
04/05/2000CN1249568A Radio equipment comprising frequency synthesizer and phase discriminator
03/2000
03/30/2000WO2000018014A1 Pll circuit and radio communication terminal using pll
03/15/2000EP0823059B1 Interrogator for electronic identification system
03/14/2000US6037806 High speed phase/frequency detector
03/09/2000WO2000013305A1 Lock-in aid frequency detector
03/09/2000WO1999057814A3 Phase frequency detector having instantaneous phase difference output
03/07/2000US6034554 Phase detector for high speed clock recovery from random binary signals
02/2000
02/09/2000EP0978946A1 Phase detector
01/2000
01/19/2000EP0972338A1 Phase detector
01/04/2000US6011412 Frequency shift detection circuit with selectable granularity
12/1999
12/15/1999CN1238600A Phase detection apparatus
12/01/1999CN1237289A Method for performing phase comparison, and phase comparator
11/1999
11/23/1999US5990673 Digital phase comparator
11/16/1999US5987084 Method and apparatus for correction of GPS carrier phase measurement
11/11/1999WO1999057814A2 Phase frequency detector having instantaneous phase difference output
11/02/1999US5977801 Self-resetting phase/frequency detector with reduced dead zone
10/1999
10/12/1999US5966033 Low ripple phase detector
10/12/1999CA2105233C Digital phase comparator and phase-locked loop
10/05/1999US5963059 Phase frequency detector having reduced blind spot
10/05/1999US5963058 Integrated circuit
09/1999
09/23/1999WO1999048195A1 Phase detector
09/14/1999US5952853 Method for extending the output range of pulse-width based phase detectors
09/07/1999US5949264 Digital phase detector and charge pump system reset and balanced current source matching methods and systems
09/07/1999US5948111 Real time comparison of integrated circuit operation
09/01/1999EP0938779A2 Method for performing phase comparison, and phase comparator
08/1999
08/31/1999US5945849 Phase error signal generator
08/10/1999US5936430 Phase detection apparatus and method
08/10/1999CA2086279C A differential detection demodulator
07/1999
07/27/1999US5930275 Clock error detection circuit
07/27/1999US5929677 Phase locked loop having a voltage source responsive to a filtered phase difference output voltage and semiconductor device including the phase locked loop
07/13/1999US5923190 Phase detector having a sampling circuit
06/1999
06/30/1999EP0926813A1 Pulse-width based phase detector having a extended output range
06/09/1999EP0796524B1 Digital data phase detector
06/09/1999CN1219301A Method and apparatus for determining the change in frequency of a reference signal
06/03/1999WO1999009654A3 Method for performing phase comparison, and phase comparator
06/01/1999US5909129 Low cost microstrip phase detector
05/1999
05/19/1999EP0916189A1 Phase and frequency detector circuit
05/04/1999US5900747 Sampling phase detector
04/1999
04/15/1999WO1999018691A1 Digital phase discrimination based on frequency sampling
04/15/1999WO1999018660A1 Method and apparatus for deskewing clock signals
04/06/1999US5892380 Method for shaping a pulse width and circuit therefor
03/1999
03/16/1999US5883536 Digital phase detector device ultilizing dither generator
02/1999
02/25/1999WO1999009654A2 Method for performing phase comparison, and phase comparator
02/23/1999CA2132442C Instantaneous phase detecting circuit and clock recovery signal generating circuit incorporated in differential demodulator
02/11/1999DE19818976A1 Phase detector for isolating interference signals from detector output signal
02/04/1999DE19740700C1 Clock signal phase difference evaluation method
01/1999
01/26/1999CA2054765C Direct phase digitization
01/13/1999EP0835550B1 Phase comparator without dead zone
12/1998
12/16/1998EP0883927A1 Method and apparatus for determining the change in frequency of a reference signal
12/09/1998CN1201567A Tuning control system
12/08/1998US5847582 Apparatus and method for producing symmetric capture range in two-quadrant phase detector PLLs using nonsymmetric pulse waves
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