Patents
Patents for H03D 13 - Circuits for comparing the phase or frequency of two mutually-independent oscillations (1,662)
07/2010
07/15/2010US20100176845 Method for detecting the locking of a phase-locked loop and associated device
07/14/2010EP2207044A1 A signal phase difference measurement method, apparatus and system
07/13/2010US7756236 Phase detector
07/13/2010US7755397 Methods and apparatus for digital phase detection with improved frequency locking
07/08/2010WO2010041163A3 Phase frequency to digital converter
07/08/2010US20100171527 Phase comparator and phase-locked loop
07/08/2010US20100171526 Phase-discriminating device and method
07/06/2010US7750683 Phase/frequency detector
06/2010
06/02/2010EP1738465B1 Fast phase-frequency detector arrangement
06/01/2010US7728631 Phase frequency detector with pulse width control circuitry
05/2010
05/27/2010WO2010059032A2 A phase frequency detector
05/26/2010CN1578150B 相位同步电路 A phase synchronizing circuit
05/20/2010US20100123482 Phase detector circuitry
05/18/2010US7720188 Fast phase-frequency detector arrangement
05/05/2010CN101702617A High-precision +/-180 DEG digital phase distinguishing method and applying device thereof
04/2010
04/22/2010US20100097102 Semiconductor integrated circuit and method for testing semiconductor integrated circuit
04/20/2010US7702702 Signal processing device for computing phase difference between alternating current signals
04/15/2010WO2010041163A2 Phase frequency to digital converter
04/15/2010US20100090723 Symmetric Phase Detector
04/13/2010US7697652 Recovery of clock and data using quadrature clock signals
04/06/2010US7692501 Phase/frequency detector and charge pump architecture for referenceless clock and data recovery (CDR) applications
03/2010
03/23/2010US7683675 Radiation hardened phase frequency detector for implementing enhanced radiation immunity performance
03/16/2010US7680235 VCO circuit, PLL circuit using VCO circuit, and data recording apparatus the PLL circuit
03/09/2010US7675328 Phase detection apparatus and phase synchronization apparatus
03/04/2010WO2010023627A1 Phase-detector for detecting phase difference of ∏/2n
03/04/2010US20100054760 Phase Detector Circuit for Clock and Data Recovery Circuit and Optical Communication Device Having the Same
03/02/2010US7671671 Device and method for the demodulation of modulated electric signals
02/2010
02/23/2010US7668278 Phase-locked loop
02/11/2010WO2010016301A1 Phase comparator, pll circuit, and dll circuit
02/11/2010WO2010015739A2 Demodulation circuit
02/11/2010WO2009153716A3 Fast-locking bang-bang pll with low output jitter
01/2010
01/28/2010US20100019802 Phase/Frequency Detector
01/28/2010US20100019801 Apparatus, test apparatus and method for detecting a changing point of measured signal
01/14/2010US20100007383 Method and apparatus for generating a phase dependent control signal
01/07/2010WO2010000746A1 Circuit with a time to digital converter and phase measuring method
01/07/2010US20100001796 Radio Frequency (RF) Envelope Pulsing Using Phase Switching of Switch-Mode Power Amplifiers
01/06/2010EP2141797A1 Circuit with a time to digital converter and phase measuring method
12/2009
12/29/2009US7639048 System and method of detecting a phase, a frequency and an arrival-time difference between signals
12/24/2009US20090315878 Phase comparator, and clock generation circuit, image display device, and reproduction signal processor each using the same
12/23/2009EP2136472A1 Fast-locking bang-bang PLL with low output jitter
12/15/2009US7633185 Apparatus for interfacing a three phase power supply to a load
12/03/2009US20090295433 Method and apparatus for measuring and compensating for static phase error in phase locked loops
12/02/2009CN100566170C Differential current mode phase/frequency detector circuit
11/2009
11/26/2009US20090289730 Digital phase detector and phase-locked loop
11/24/2009US7622960 Metastable-resistant phase comparing circuit
11/24/2009US7622959 Phase comparator and semiconductor device with phase comparator
11/18/2009EP2120056A1 System and method for generating a reset signal
11/11/2009CN100559192C Phase frequency discriminator
10/2009
10/29/2009US20090267666 Phase Difference Detector And Phase Difference Detection Method
10/28/2009CN100555931C Device, system and method for adjusting signal sampling point
10/20/2009US7605667 Frequency synthesizer with a harmonic locked phase/frequency detector
10/13/2009US7602876 Method and apparatus for generating a phase dependent control signal
10/08/2009WO2009122843A1 Frequency synthesizer and method for controlling oscillation frequency of oscillator
10/07/2009CN100547907C Circuit and method for detecting phase
10/06/2009US7598775 Phase and frequency detector with zero static phase error
10/01/2009US20090243660 Mutual charge cancelling sample-reset loop filter for phase locked loops
09/2009
09/24/2009US20090237116 Receiving device
09/22/2009US7592874 Phase/frequency detector, phase locked loop, method for phase/frequency detection and method for generating an oscillator signal
09/08/2009US7586335 Digital phase detector and a method for the generation of a digital phase detection signal
09/03/2009US20090219055 Signal Comparison Circuit and Power Conversion Device
08/2009
08/27/2009US20090212824 Method and Apparatus for Automatic Optimal Sampling Phase Detection
08/19/2009CN101510823A Phase detector for semi-velocity collision type clock data recovery circuit
08/12/2009CN101504462A Phase difference detection method and system, double-crystal oscillation mixer circuit and distance measurement apparatus
08/05/2009CN100525400C Read-out circuit for infrared detectors
07/2009
07/29/2009EP2082477A2 Voltage clamp to allow low-temperature recharging of nickel-cadmium batteries in emergency lighting fixtures and method of using
07/28/2009US7567642 Phase detector with extended linear operating range
06/2009
06/25/2009US20090160487 Phase and frequency detector with zero static phase error
06/04/2009US20090140773 Phase detection apparatus and phase synchronization apparatus
05/2009
05/13/2009EP1747617A4 System and method for generating a jittered test signal
05/12/2009US7532039 Clock signal detector
05/12/2009US7532038 Phase detecting circuit having adjustable gain curve and method thereof
05/05/2009US7529331 Wobble clock generator and driving method thereof
04/2009
04/23/2009US20090102528 Semiconductor integrated circuit
04/22/2009CN101414823A Error compensation method, digital phase error cancellation module, and adpll thereof
04/22/2009CN100481711C High performance signal generation
04/21/2009US7522691 Phase-locked circuit
04/21/2009US7522640 Method of avoiding synchronization between communicating nodes
04/08/2009EP1776619B1 Method and apparatus for high-speed input sampling
04/08/2009CN100477491C Phase detector, phase-locked loop and method for detecting phase
04/02/2009WO2009041102A1 Phase comparator and clock data regeneration circuit using the same
03/2009
03/31/2009US7511537 Comparator circuit for reducing current consumption by suppressing glitches during a transitional period
03/24/2009US7508894 Apparatus of adjusting wobble clock
03/24/2009US7508239 Pattern sequence and state transition triggers
03/19/2009WO2009034881A1 Phase comparator and phase locked loop
03/18/2009CN101388666A Non-linear frequency and phase discriminator without phase discriminating blind zone
03/18/2009CN100470870C Low current and high speed phase change storage device and method for driving same
03/11/2009CN100468963C Sampling signal amplifier
03/10/2009US7501861 Phase-difference detecting apparatus and method
03/05/2009WO2009027717A1 Phase detector and phase locked loop
03/05/2009US20090058468 Method of Detecting the Frequency of an Input Clock Signal of an Integrated Circuit and Integrated Circuit
03/05/2009US20090058467 Phase detection apparatus
02/2009
02/25/2009CN101373951A Method for digital discrimination and apparatus thereof
02/19/2009US20090045848 Phase-frequency detector with high jitter tolerance
02/18/2009CN101371439A Phase comparison circuit and PLL synthesizer using the same
02/10/2009US7490195 Semiconductor integrated circuit with a cache circuit configured to determine an optimal portion to stop the operation between a sense amplifier and an output circuit based on the system clock
02/05/2009US20090033381 Phase locked loop, voltage controlled oscillator, and phase-frequency detector
02/04/2009EP2020079A2 Self-compensating drift-free radio-frequency phase detector circuit
02/03/2009US7486756 Phase detector
01/2009
01/27/2009US7482842 Radiation hardened phase frequency detector for implementing enhanced radiation immunity performance
01/27/2009US7482841 Differential bang-bang phase detector (BBPD) with latency reduction
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