Patents for H03L 7 - Automatic control of frequency or phase; Synchronisation (37,643)
07/2001
07/10/2001US6259326 Clock recovery from a burst-mode digital signal each packet of which may have one of several predefined frequencies
07/10/2001US6259295 Variable phase shifting clock generator
07/10/2001US6259293 Delay circuitry, clock generating circuitry, and phase synchronization circuitry
07/10/2001US6259291 Self-adjusting apparatus and a self-adjusting method for adjusting an internal oscillating clock signal by using same
07/10/2001US6259290 Delay locked loop having a mis-lock detecting circuit
07/10/2001US6259288 Semiconductor integrated circuit having a DLL circuit and a special power supply circuit for the DLL circuit
07/10/2001US6259283 Clock doubler circuit and method
07/10/2001US6259278 Phase detector
07/05/2001WO2001048973A1 Clock recovery and detection of rapid phase transients
07/05/2001WO2001001266A9 Digital delay locked loop with output duty cycle matching input duty cycle
07/05/2001US20010007151 Fully integrated tuner architecture
07/05/2001US20010006544 Frequency synthesizer
07/05/2001US20010006356 Voltage controlled oscillator assembly
07/05/2001US20010006343 Integrated circuit and lot selection system therefor
07/04/2001EP1113616A2 Method for recovering a clock signal in a telecommunications system and circuit thereof
07/04/2001EP1113579A1 Method for dividing the frequency of a signal
07/04/2001EP1113353A2 An apparatus and method for facilitating the efficient capture of signals originating in a fast clock domain by a circuit in a slow clock domain
07/04/2001EP1112620A2 Circuit and method for generating clock pulses
07/04/2001CN2438275Y Digital direct frequency synthesis and phase-locked loop type wide-band frequency synthesizer
07/04/2001CN2438274Y Digital direct frequency synthesis and phase-locked loop type frequency-hopping frequency synthesizer
07/04/2001CN1302477A Clock generation circuit, serial/parallel converter and parallel/serial converter and semiconductor device
07/04/2001CN1302119A Digital phase detecting method and its device
07/04/2001CN1302118A Method for controlling clock signal phase transient on switching and its device
07/03/2001US6256362 Frequency acquisition circuit and method for a phase locked loop
07/03/2001US6256361 D.T.R.M. data timing recovery module
07/03/2001US6256360 Method for reducing transients in a clock signal generating system
07/03/2001US6256259 Delay-locked loop with binary-coupled capacitor
07/03/2001US6255912 Phase lock loop used as up converter and for reducing phase noise of an output signal
07/03/2001US6255911 PLL circuit protected against noise and missing pulses in a reference signal
07/03/2001US6255880 One-shot DLL circuit and method
07/03/2001US6255873 Setting the common mode level of a differential charge pump output
07/03/2001US6255872 Charge pump circuit for PLL
07/03/2001US6255871 Method and apparatus for improving capture and lock characteristics of phase lock loops
07/03/2001US6255870 Apparatus for compensating locking error in high speed memory device with delay locked loop
07/03/2001US6255858 Phase-frequency detector and phase-locked loop circuit incorporating the same
07/03/2001US6255647 Atomic frequency standard based on coherent state preparation
06/2001
06/29/2001CA2293173A1 Agile phase noise filter using vcxo and frequency synthesis
06/28/2001WO2001047173A2 A multi-rate transponder system and chip set
06/28/2001WO2001047122A2 Apparatus for selectively disabling clock distribution
06/28/2001WO2001047110A2 Method and apparatus for changing characteristics of device
06/28/2001US20010005408 Electronic device with a frequency synthesis circuit
06/28/2001US20010005405 Phase synchronization method for extended partial response, and phase synchronization circuit and read channel circuit using this method
06/28/2001US20010005337 Delay locked loop having fast locking time
06/28/2001US20010005164 Clock recovery circuit
06/28/2001US20010005157 Semiconductor device using complementary clock and signal input state detection circuit used for the same
06/28/2001US20010005156 Circuit and system for extracting data
06/28/2001US20010005154 Self-compensating phase detector
06/28/2001CA2394594A1 Method and apparatus for selectively disabling clock distribution
06/27/2001EP1111880A2 Method and apparatus for detecting dual tone alerting in telephone systems
06/27/2001EP1111836A2 Circuit and system for extracting data
06/27/2001EP1111793A1 Frequency synthesizer apparatus equipped with delta-sigma modulator in fraction part control circuit
06/27/2001EP1111792A2 VCO with programmable output power
06/27/2001EP1110340A1 Precision timing generator system and method
06/27/2001EP1110316A1 Phase-locked loop system
06/27/2001CN1301100A Clock resetting phase-locked loops
06/27/2001CN1301085A Controller oscilator system and method
06/27/2001CN1067829C Clock delay compensating & Duty controlling apparatus of phase-locked loop
06/26/2001US6253348 Hardware design for majority voting, and testing and maintenance of majority voting
06/26/2001US6252733 Method and apparatus for acquiring a preamble signal in a hard disk drive
06/26/2001US6252469 Microwave/millimeter-wave injection/synchronization oscillator
06/26/2001US6252468 Signal generator with improved impedance matching characteristics
06/26/2001US6252466 Power-up detector for a phase-locked loop circuit
06/26/2001US6252465 Data phase locked loop circuit
06/26/2001US6252464 Numerically-controlled nyquist-boundary hopping frequency synthesizer
06/26/2001US6252444 Reset signal generation circuit
06/26/2001US6252443 Delay element using a delay locked loop
06/26/2001US6252419 LVDS interface incorporating phase-locked loop circuitry for use in programmable logic device
06/21/2001WO2001045314A2 System and method for pulsed cable telephony
06/21/2001WO2001045309A2 Phase/frequency detector for dejitter applications
06/21/2001WO2001045264A1 Electronic device with a frequency synthesis circuit
06/21/2001WO2001045263A1 Frequency division/multiplication with jitter minimization
06/21/2001WO2001045262A1 Method and system for managing reference signals for network clock synchronization
06/21/2001WO2001045261A2 Model for charge pump phase-locked loop
06/21/2001WO2000042659A9 System and method for esd protection
06/21/2001CA2387129A1 Phase/frequency detector for dejitter applications
06/20/2001EP1109349A2 Clock recovery pll for ATM networks
06/20/2001EP1109319A2 Arrangement for generation and transposition of a clock signal
06/20/2001EP1109318A1 Pll controller, method of pll control, and limiter
06/20/2001EP1109317A1 A controller oscillator system and method
06/20/2001EP0850511B1 Transmission process in which a conversion oscillator signal is synthesised by means of a fractional n-phase-shift control loop
06/20/2001CN1300154A Method and apparatus for detecting dual-tone warning signals in telephone system
06/20/2001CN1067502C Controllable-frequency oscillator
06/19/2001US6249685 Low power fractional pulse generation in frequency tracking multi-band fractional-N phase lock loop
06/19/2001US6249560 PLL circuit and noise reduction means for PLL circuit
06/19/2001US6249555 Low jitter digital extraction of data from serial bitstreams
06/19/2001US6249235 Sampling frequency conversion apparatus and fractional frequency dividing apparatus for sampling frequency
06/19/2001US6249192 Clock injection system
06/19/2001US6249189 Frequency synthesizer accomplished by using multiphase reference signal source
06/19/2001US6249188 Error-suppressing phase comparator
06/19/2001US6249185 Method of speeding power-up of an amplifier, and amplifier
06/19/2001US6249164 Delay circuit arrangement for use in a DAC/driver waveform generator with phase lock rise time control
06/19/2001US6249160 Clock reproduction and identification apparatus
06/19/2001US6249159 Frequency control circuit having increased control bandwidth at lower device operating speed
06/19/2001US6249150 Clock signal generator circuit
06/17/2001CA2328316A1 Clock recovery pll
06/14/2001WO2001043288A1 Ring oscillator with jitter reset
06/14/2001WO2000003507A3 A variable clock rate correlation circuit and method of operation
06/14/2001US20010003432 Quadrature demodulator with phase-locked loop
06/13/2001EP1107531A2 Quadrature demodulator with phase-locked loop
06/13/2001EP1107458A2 System for limiting IF variation in phase locked loops