Patents for H03L 7 - Automatic control of frequency or phase; Synchronisation (37,643)
01/2009
01/27/2009US7482847 Power-on reset circuit
01/22/2009WO2009010891A1 A method and a device for data sample clock reconstruction
01/22/2009WO2009010007A1 A method, an apparatus and an optical modulator for phase adjustment
01/22/2009WO2008142268A3 Clock extraction device with digital feedback control of phase without external adjustment
01/22/2009US20090021312 PLL circuit
01/22/2009US20090021310 System and method for phase-locked loop (pll) for high-speed memory interface (hsmi)
01/22/2009US20090021290 Method and System for Improved Efficiency of Synchronous Mirror Delays and Delay Locked Loops
01/22/2009US20090021289 Voltage Detection Circuit in an Integrated Circuit and Method of Generating a Trigger Flag Signal
01/22/2009DE102008033240A1 Frequenzgenerator Frequency generator
01/21/2009CN101351966A Serial data communication system and method
01/21/2009CN101350620A Digital phase discriminator
01/21/2009CN101350619A Acousto-optic driver base on direct digital synthesis technology
01/21/2009CN100454804C Digital signal transmitting system and method, transmitting apparatus and method, and receiving apparatus and method
01/21/2009CN100454755C Annular voltage controlled oscillator
01/20/2009US7480358 CDR-based clock synthesis
01/20/2009US7480343 Transceiver architecture with reduced VCO-pulling sensitivity
01/20/2009US7480203 Method and apparatus for initialization of read latency tracking circuit in high-speed DRAM
01/20/2009US7479834 Analogue self-calibration method and apparatus for low noise, fast and wide-locking range phase locked loop
01/20/2009US7479816 Generating multiple delayed signals of different phases from a reference signal using delay locked loop (DLL)
01/20/2009US7479815 PLL with dual edge sensitivity
01/20/2009US7479814 Circuit for digital frequency synthesis in an integrated circuit
01/20/2009US7479777 Circuitry and method to measure a duty cycle of a clock signal
01/15/2009US20090016421 Parameter control circuit
01/15/2009US20090016136 Oscillation device, method of oscillation, and memory device
01/15/2009US20090015340 Phase Controlled Oscillator Circuit with Input Signal Coupler
01/15/2009US20090015338 Dividerless pll architecture
01/15/2009US20090015304 Clock data recovery and synchronization in interconnected devices
01/15/2009US20090015303 Delay cell of voltage controlled delay line using digital and analog control scheme
01/15/2009US20090015302 Delay locked loop and method of controlling the same
01/15/2009US20090015301 Controlling timing dependencies in a mixed signal system-on-a-chip (soc)
01/15/2009DE102007042070B3 Spread-spectrum-fractional-phase locked loop circuit for use as frequency generator, has interface circuit combining signals, where single signal is not guided, when stages require phase-step in same clock period and in different directions
01/14/2009EP2015159A1 Steady state frequency control of variable frequency switching regulators
01/14/2009EP2013972A1 Method and system for configuration of a phase-locked loop circuit
01/14/2009EP1889366A4 Prescaler for a fractional-n synthesizer
01/14/2009EP0962052B1 Temperature insensitive silicon oscillator and precision voltage reference formed therefrom
01/14/2009CN101346927A Receive clock deskewing method, apparatus, and system
01/14/2009CN101346882A Phase synchronizing circuit
01/14/2009CN101345823A Information device and portable information apparatus
01/14/2009CN101345525A Clock receiver and correlative semiconductor memory module and emendation method
01/14/2009CN100452241C Delay locked loop in semiconductor memory device and its clock locking method
01/14/2009CN100452181C PLL clock generator, its control method and optical disc device
01/14/2009CN100451914C Phase locked loop fast power up methods and apparatus
01/14/2009CN100451883C Floating actuator control system and method
01/13/2009US7477716 Start up circuit for delay locked loop
01/13/2009US7477714 Phase adjusting circuit for minimized irregularities at phase steps
01/13/2009US7477713 method for providing automatic adaptation to frequency offsets in high speed serial links
01/13/2009US7477676 Spread spectrum clock generator and integrated circuit device using the spread spectrum clock generators
01/13/2009US7477591 Data slicer of dynamically adjusting slice level
01/13/2009US7477110 Method and device for testing a phase locked loop
01/13/2009US7477083 DLL circuit feeding back ZQ calibration result, and semiconductor device incorporating the same
01/13/2009US7477078 Variable phase bit sampling with minimized synchronization loss
01/13/2009US7476233 Ultrasonic surgical system within digital control
01/08/2009US20090009662 Method and Apparatus for Wireless Clock Regeneration
01/08/2009US20090009256 Variable-frequency oscillator
01/08/2009US20090009225 Clock signal generator
01/08/2009US20090009224 Multiphase DLL using 3-edge phase detector for wide-range operation
01/08/2009US20090009223 Pll circuit and semiconductor integrated device
01/08/2009US20090009222 Clock generation circuit, recording device and clock generation method
01/08/2009US20090009221 Method and apparatus for synchronizing a clock generator in the presence of jittery clock sources
01/07/2009EP2011229A1 Phase locked oscillator
01/07/2009EP1287633B1 Clock data recovery circuitry associated with programmable logic device circuitry
01/07/2009CN101340190A Semiconductor integrated circuit and method of testing same
01/07/2009CN101339798A Clock generation circuit, recording device and clock generation method
01/07/2009CN100450230C Clock recovery method and apparatus in RF far-end module
01/07/2009CN100449631C Optical record carrier recording device and method comprising means for generating a timing signal having an increased timing resolution
01/06/2009US7475301 Increment/decrement circuit for performance counter
01/06/2009US7474720 Clock and data recovery method and digital circuit for the same
01/06/2009US7474717 Oscillator frequency control
01/06/2009US7474358 Digital transmission system and clock reproducing device
01/06/2009US7474166 PLL frequency synthesizer circuit and frequency tuning method thereof
01/06/2009US7474159 Frequency calibration for frequency synthesizers
01/06/2009US7474139 Semiconductor integrated circuit device and frequency modulation device
01/06/2009US7474130 Compensation of voltage-to-current converter
01/06/2009CA2510738C Pll circuit and phase control method of pll circuit
01/02/2009DE102008023556A1 Versatzfehlerunterdrückung in einer Phasenregelschleifenschaltung mit einem digitalen Schleifenfilter Offset error suppression in a phase locked loop circuit with a digital loop filter
01/02/2009DE102007031127A1 Phase locked loop circuit for frequency synthesizer, has control unit connected to divisor and designed for controlling divisor exhibiting comparator function and multiplexer designed for phase quantization and output feedback signal
01/01/2009US20090007047 Design Structure for a Phase Locked Loop with Stabilized Dynamic Response
01/01/2009US20090002088 Digital controlled oscillator, frequency synthesizer, radio communication apparatus using the same, and control method for the same
01/01/2009US20090002083 Oscillation Circuit, Power Supply Circuit, Display Device, and Electronic Apparatus
01/01/2009US20090002082 Multiphase signal generator
01/01/2009US20090002080 Frequency divider and phase locked loop using the same
01/01/2009US20090002079 Continuous gain compensation and fast band selection in a multi-standard, multi-frequency synthesizer
01/01/2009US20090002041 Method for improving stability and lock time for synchronous circuits
01/01/2009US20090002040 Dll circuit of semiconductor memory apparatus
01/01/2009US20090002039 Power control circuit, method of controlling power control circuit, and dll circuit including power control circuit
01/01/2009US20090002038 Phase Locked Loop with Stabilized Dynamic Response
01/01/2009US20090002037 Reset control method and apparatus in power management integrated circuit
12/2008
12/31/2008WO2009001414A1 Pll control circuit, pll device, pll control method
12/31/2008WO2008139064A3 Clock extraction device with digital phase lock, requiring no external control
12/31/2008WO2008139063A3 Digital data and clock extraction device requiring no external control
12/31/2008EP2009797A1 Frequency synthesizer, wireless communication system, and semiconductor device
12/31/2008EP2009796A1 Method for filtering a signal in a phase-locked loop, phase locked loop, base station and communication network therefor
12/31/2008EP2009783A1 Local oscillator, reception device and electronic device using the same
12/31/2008EP1595201B1 System and method for calibrating the clock frequency of a clock generator unit over a data line
12/31/2008CN201174688Y Digital auxiliary phase lock loop circuit
12/31/2008CN101335523A Frequency synthesizer
12/31/2008CN101335522A Digital frequency detector and digital phase locked loop using the digital frequency detector
12/31/2008CN101335521A Charge pump for phase lock loop
12/31/2008CN101335520A Clock generating circuit and clock generating control circuit
12/31/2008CN101335509A Method and digital control oscillator for sinusoidal and cosine signal generator