| Patents for H03D 13 - Circuits for comparing the phase or frequency of two mutually-independent oscillations (1,662) |
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| 02/29/2012 | CN101350620B Digital phase discriminator |
| 02/28/2012 | US8125250 Frequency detection mechanism for a clock generation circuit |
| 02/07/2012 | US8111106 Switched phase and frequency detector based DPLL circuit with excellent wander and jitter performance and fast frequency acquisition |
| 01/31/2012 | US8107580 Method and apparatus for generating a phase dependent control signal |
| 01/25/2012 | EP2319173B1 Phase-detector for detecting phase difference of pi/2n |
| 01/17/2012 | US8098085 Time-to-digital converter (TDC) with improved resolution |
| 01/05/2012 | US20120001656 Apparatus, System, and Method for Direct Phase Probing and Mapping of Electromagnetic Signals |
| 12/20/2011 | US8081013 Digital phase and frequency detector |
| 12/20/2011 | US8081003 Circuit arrangement with a test circuit and a reference circuit and corresponding method |
| 12/15/2011 | US20110304357 Digital phase comparator |
| 11/30/2011 | CN102265503A 鉴频鉴相器 Phase frequency detector |
| 11/24/2011 | US20110285588 Device for discriminating the phase and the phase variation of a signal |
| 11/21/2011 | CA2740274A1 Device for discriminating the phase and the phase variation of a signal |
| 11/15/2011 | US8058915 Digital phase-locked loop and digital phase-frequency detector thereof |
| 11/02/2011 | EP2291914B1 Fast-locking bang-bang pll with low output jitter |
| 10/18/2011 | US8040170 Semiconductor integrated circuit |
| 10/18/2011 | US8040158 Frequency difference detection apparatus and method, frequency discrimination apparatus and method, and frequency synthesis apparatus and method |
| 09/29/2011 | WO2011116822A1 A phase detector |
| 09/29/2011 | US20110234195 CONTROL CIRCUIT and ELECTRONIC DEVICE |
| 09/29/2011 | US20110234137 System clock monitoring apparatus and motor control system |
| 09/27/2011 | US8026742 Phase detector |
| 09/15/2011 | US20110221476 phase frequency detector |
| 09/06/2011 | US8013636 Synchronous phase detection circuit |
| 08/30/2011 | US8008946 Semiconductor integrated circuit |
| 08/24/2011 | EP2359469A2 A phase frequency detector |
| 08/23/2011 | CA2625551C Method for reducing inter modulation distortion products of a combined carrier wave using phase alignment of the carrier components |
| 08/16/2011 | US7999577 Apparatus and method for detecting a changing point of measured signal |
| 08/04/2011 | US20110187413 Phase detecting circuit and pll circuit |
| 07/21/2011 | US20110175648 Phase-frequency comparator and serial transmission device |
| 07/20/2011 | EP2345154A2 Phase frequency to digital converter |
| 07/20/2011 | CN102132488A Phase-detector for detecting phase difference pi/2n |
| 06/30/2011 | US20110156757 Inter-phase skew detection circuit for multi-phase clock, inter-phase skew adjustment circuit, and semiconductor integrated circuit |
| 06/29/2011 | CN102113206A Circuit with time to digital converter and phase measuring method |
| 06/28/2011 | US7969202 Fractional-N frequency synthesizer |
| 06/22/2011 | CN101268376B An apparatus and method for multi-phase digital sampling |
| 06/21/2011 | US7965108 Frequency synthesizer |
| 06/16/2011 | US20110140737 Apparatus and method for estimating data relating to a time difference and apparatus and method for calibrating a delay line |
| 06/15/2011 | CN1795606B Phase detector and method of phase detection |
| 06/09/2011 | US20110134964 Frequency synthesizer and configuration for an enhanced frequency-hopping rate |
| 06/07/2011 | US7957500 Fast phase-frequency detector arrangement |
| 06/07/2011 | US7956649 Frequency pattern detector |
| 06/02/2011 | US20110128044 Test apparatus, test method, and phase shifter |
| 05/31/2011 | US7952841 Device for detecting malfunctions by manipulation of an internal voltage supply |
| 05/11/2011 | EP2319173A1 Phase-detector for detecting phase difference of pi/2n |
| 05/10/2011 | US7940088 High speed phase frequency detector |
| 05/03/2011 | US7936348 Methods and apparatuses using control indicators for data processing systems |
| 04/28/2011 | US20110095786 Phase comparator, pll circuit, information reproduction processing device, optical disk playback device and magnetic disk playback device |
| 04/13/2011 | EP1894296B1 Pattern-dependent phase detector for clock recovery |
| 03/30/2011 | EP2301145A1 Circuit with a time to digital converter and phase measuring method |
| 03/24/2011 | US20110068827 Passive capacitively injected phase interpolator |
| 03/23/2011 | CN101008660B Glue-injection techniques method of phase sensor |
| 03/09/2011 | EP2291914A2 Fast-locking bang-bang pll with low output jitter |
| 02/24/2011 | US20110043253 Method for sampling data and apparatus therefor |
| 02/16/2011 | EP2285059A2 Digital transmitters for wireless communication |
| 02/15/2011 | US7889978 Motor controller and electric power steering system |
| 02/15/2011 | US7889012 System and method for cycle slip prevention in a frequency synthesizer |
| 02/01/2011 | US7880520 Semiconductor integrated circuit |
| 01/26/2011 | CN101388666B Non-linear frequency and phase discriminator without phase discriminating blind zone |
| 01/26/2011 | CN101206236B Device and method for detecting phase difference |
| 01/20/2011 | US20110012656 Semiconductor integrated circuit |
| 01/18/2011 | US7873130 Frequency comparator utilizing enveloping-event detection via symbolic dynamics of fixed or modulated waveforms |
| 01/11/2011 | US7870086 Method and apparatus for phase-independent predictable resetting |
| 01/06/2011 | WO2010101878A3 Quadrature signal demodulator circuitry suitable for doppler ultrasound |
| 01/06/2011 | US20110001568 Integrated circuit with low temperature coefficient and associated calibration method |
| 12/30/2010 | US20100327967 Test apparatus, demodulation apparatus, test method, demodulation method and electric device |
| 12/30/2010 | US20100327940 Embedded phase noise measurement system |
| 12/30/2010 | US20100327912 Digital phase-locked loop and digital phase-frequency detector thereof |
| 12/23/2010 | US20100321001 Phase detecting apparatus, test apparatus and adjusting method |
| 12/22/2010 | CN101924540A Differential time domain comparator circuit |
| 12/21/2010 | US7855580 Phase comparator, phase synchronizing circuit, and phase-comparison control method |
| 12/16/2010 | WO2010143241A1 Digital pll circuit, semiconductor integrated circuit, display apparatus |
| 12/14/2010 | US7852122 Transmission circuit for transmitting a differential signal having pulse time larger than a predetermined minimum pulse time and CMOS semiconductor device |
| 11/23/2010 | US7839178 High speed digital phase/frequency comparator for phase locked loops |
| 11/23/2010 | US7839177 Techniques for phase detection with fast reset |
| 11/16/2010 | US7834664 Semiconductor device for detecting a phase of a clock |
| 10/26/2010 | US7821301 Method and apparatus for measuring and compensating for static phase error in phase locked loops |
| 10/12/2010 | US7813626 Motor controller and electric power steering apparatus |
| 10/12/2010 | US7812644 Digital frequency detector and digital phase locked loop using the digital frequency detector |
| 09/28/2010 | US7804926 PLL using unbalanced quadricorrelator |
| 09/21/2010 | US7802125 Over clocking detecting and permitting access to stored over clocking indicator in a power down state |
| 09/16/2010 | WO2010104164A1 Digital phase comparator |
| 09/16/2010 | US20100231264 Passive clock detector |
| 09/16/2010 | US20100231195 Measurement apparatus, reproduction apparatus, and measurement method |
| 09/14/2010 | US7795926 Phase detector for half-rate bang-bang CDR circuit |
| 09/14/2010 | US7795925 Phase difference detector and phase difference detection method |
| 09/10/2010 | WO2010101878A2 Quadrature signal demodulator circuitry suitable for doppler ultrasound |
| 09/07/2010 | US7791378 Phase detector |
| 09/02/2010 | WO2010097273A1 Electronic device for generating a fractional frequency |
| 08/31/2010 | US7786763 Clock circuit with harmonic frequency detector |
| 08/26/2010 | WO2010059032A3 A phase frequency detector |
| 08/17/2010 | US7777528 Phase detection module and phase detection method |
| 08/12/2010 | US20100205488 Fast phase-frequency detector arrangement |
| 08/12/2010 | US20100201344 Method of Measuring Setup Time with Consideration of Characteristic of Absorbing Clock Skew in a Pulse-Based Flip-Flop |
| 08/11/2010 | CN1985459B System and method for generating a jittered test signal |
| 08/10/2010 | US7772827 Measuring device, in particular, a vectorial network analyzer with phase regulation |
| 08/05/2010 | US20100194440 Phase Error De-Glitching Circuit and Method of Operating |
| 08/05/2010 | US20100194378 System for phase identification |
| 07/27/2010 | US7764759 Linear sample and hold phase detector for clocking circuits |
| 07/27/2010 | US7764088 Frequency detection circuit and detection method for clock data recovery circuit |
| 07/20/2010 | US7759927 Test apparatus and testing method |