Patents for H03L 7 - Automatic control of frequency or phase; Synchronisation (37,643)
06/2009
06/16/2009US7548121 Fractional frequency synthesizer and phase locked loop utilizing fractional frequency synthesizer and method thereof
06/16/2009US7548120 Frequency switching method
06/16/2009US7548119 Digitally controlled oscillator with jitter shaping capability
06/16/2009US7548099 Semiconductor device with delay section
06/16/2009US7547956 Thick oxide P-gate NMOS capacitor for use in a low-pass filter of a circuit and method of making same
06/11/2009WO2009073580A2 Digital phase-locked loop operating based on fractional input and output phases
06/11/2009WO2009073480A2 Matching a resonant frequency of a resonant cavity to a frequency of an input voltage
06/11/2009WO2009073301A1 Method and apparatus for reconfigurable frequency generation
06/11/2009US20090146747 Novel method of frequency synthesis for fast switching
06/11/2009US20090146743 Systems and Methods for PLL Linearity Measurement, PLL Output Duty Cycle Measurement and Duty Cycle Correction
06/11/2009US20090146742 PLL Apparatus
06/11/2009US20090146713 Clock signal generating circuit, display panel module, imaging device, and electronic equipment
06/11/2009US20090146712 Delay-locked loop (dll) system for determining forward clock path delay
06/11/2009US20090146711 Clock signal generating circuit, display panel module, imaging device, and electronic equipment
06/11/2009US20090146710 Signal generating circuit
06/11/2009US20090146709 Delay circuit of delay locked loop having single and dual delay lines and control method of the same
06/11/2009US20090146708 Dll circuit and method of controlling the same
06/11/2009US20090146707 Dll circuit and method of controlling the same
06/11/2009US20090146706 Dll clock signal generating circuit capable of correcting a distorted duty ratio
06/11/2009US20090146705 Delay locked loop circuit and method for eliminating jitter and offset therein
06/11/2009US20090146704 Delay locked loop circuit and method for eliminating jitter and offset therein
06/11/2009US20090146703 Oscillation circuit, test apparatus and electronic device
06/11/2009US20090146702 Charge pump and method for operating the same
06/11/2009US20090146701 Semiconductor device including memory cell having charge accumulation layer
06/11/2009US20090146700 Duty ratio correction circuit
06/10/2009EP2067259A1 Method and apparatus for efficiently applying frequency correction
06/10/2009EP1464128B1 Delay lock loops for wireless communication systems
06/10/2009CN101454981A Direct digital synthesizer with variable reference for improved spurious performance
06/10/2009CN101453215A Frequency synthesizer having multiple frequency locking circuits
06/10/2009CN101453214A Pasting type voltage controlled oscillator
06/10/2009CN101453213A Damp factor compensation circuit for charge pump phase lock loop
06/10/2009CN101453212A Clock signal generating circuit, display panel module, imaging device, and electronic equipment
06/10/2009CN101453211A Clock signal generating circuit, display panel module, imaging device, and electronic equipment
06/10/2009CN101453210A Delay locked loop circuit and method for eliminating jitter and offset therein
06/10/2009CN100499374C Frequency synthesizer and automatic gain calibration method
06/10/2009CN100499264C Single band antenna and method for tuning same
06/09/2009US7546097 Calibration techniques for frequency synthesizers
06/09/2009US7545937 Chrominance processing arrangement having immunity to colorstripe encoding
06/09/2009US7545896 Asynchronous multi-clock system
06/09/2009US7545256 System and method for identifying a radio frequency identification (RFID) device
06/09/2009US7545231 Transconductance and current modulation for resonant frequency control and selection
06/09/2009US7545226 Magnetron oscillator
06/09/2009US7545224 Cost effective low noise single loop synthesizer
06/09/2009US7545223 PLL circuit
06/09/2009US7545222 Phase lock loop for rapid lock-in and method therefor
06/09/2009US7545193 Voltage-controlled delay circuit using second-order phase interpolation
06/09/2009US7545189 Delayed locked loop circuit
06/09/2009US7545188 Multiphase clock generator
06/09/2009US7545187 PLL circuit and wireless device
06/04/2009WO2009069246A1 Phase comparator, pll circuit, information regeneration processing apparatus, optical disc regenerating apparatus, and magnetic disc regenerating apparatus
06/04/2009US20090141825 Multiband PLL Arrangement and a Method of Controlling Such Arrangement
06/04/2009US20090141774 Spread spectrum clock generator capable of frequency modulation with high accuracy
06/04/2009US20090140818 Phase-locked loop circuit and data reproduction apparatus
06/04/2009US20090140817 Transistor voltage-controlled oscillator and frequency sythesizer having the same
06/04/2009US20090140816 Synthesizer characterization in real time
06/04/2009US20090140784 High-speed pulse shaping filter systems and methods
06/04/2009US20090140782 Spread spectrum clock generating apparatus
06/04/2009US20090140781 Circuit for data synchronization of i2c time controller in display device and method thereof
06/04/2009US20090140773 Phase detection apparatus and phase synchronization apparatus
06/04/2009US20090140671 Matching a resonant frequency of a resonant cavity to a frequency of an input voltage
06/04/2009DE102008059161A1 Vergrössern des Dynamikumfangs einer Pulsweitenmodulation bei Analog/Digitalwandlern Zoom the dynamic range of a pulse-width modulation in analog / digital converters
06/03/2009EP2066036A2 Synthesizer characterization in real time
06/03/2009EP2066035A1 Oscillation frequency control circuit
06/03/2009CN201252534Y Digital phase-locked loop system realized by GPS time signals
06/03/2009CN101447788A Circuit for generating phase-locked loop locking signal
06/03/2009CN100496032C Method and communication system to set loop delay of a decision feedback equalizer
06/03/2009CN100495926C Dominance combination method in passive atomic frequency standard system and its device
06/03/2009CN100495925C A frequency and phase discriminator circuit with effectively suppressing double frequency error-locking
06/03/2009CN100495924C Phase locked loop for controlling recordable optical disk drive
06/02/2009US7543090 Double-pumped/quad-pumped variation mechanism for source synchronous strobe lockout
06/02/2009US7542532 Data transmission device and input/output interface circuit
06/02/2009US7542507 Decision feedback equalization input buffer
06/02/2009US7541883 Coaxial resonator based voltage controlled oscillator/phased locked loop synthesizer module
06/02/2009US7541881 Power supply noise insensitive charge pump, loop filter, VCO control, and VCO
06/02/2009US7541880 Circuit and method for glitch correction
06/02/2009US7541879 System for compensation of VCO non-linearity
06/02/2009US7541878 Temperature compensated crystal oscillator
06/02/2009US7541877 Auto-adjusting high accuracy oscillator
06/02/2009US7541851 Control of a variable delay line using line entry point to modify line power supply voltage
06/02/2009US7541850 PLL with low spurs
06/02/2009US7541849 Phase locked circuit
06/02/2009US7541848 PLL circuit
05/2009
05/28/2009WO2009066356A1 Synchronizing circuit, synchronizing method and test device using them
05/28/2009WO2009065276A1 Zero-delay buffer with common-mode equalizer for input and feedback differential clocks into a phase-locked loop (pll)
05/28/2009US20090135979 Method and device for processing the frequency shift of the carrier frequency of a signal modulated with a quadrature continuous single-carrier modulation
05/28/2009US20090134946 Oscillation frequency control circuit
05/28/2009US20090134943 Voltage Control Oscillator
05/28/2009US20090134924 Delay locked loop circuit and semiconductor integrated circuit device
05/28/2009US20090134923 Zero-delay buffer with common-mode equalizer for input and feedback differential clocks into a phase-locked loop (pll)
05/28/2009US20090134922 Start-up circuit for bias circuit
05/28/2009US20090134918 Jitter generator for generating jittered clock signal
05/28/2009US20090134917 Voltage divider having varied output levels depending on frequency and pll including the same
05/28/2009DE10311823B4 Verzögerungsleitungsschaltung und zugehöriges Steuerverfahren Delay line circuit and associated control method
05/27/2009EP2063634A1 Frequency synthesizer applied to a digital television tuner
05/27/2009EP2062362A2 System and method for pre-defined wake-up of high speed serial link
05/27/2009EP1941615B1 Voltage controlled delay line (vcdl) having embedded multiplexer and interpolation functions
05/27/2009CN101442310A Voltage control oscillating circuit
05/27/2009CN101442308A Protection device for losing lock of FPGA build-in time-delay phase-locked loop
05/27/2009CN100493059C Frequency searcher and frequency-locked data demodulator using programmable rotor
05/27/2009CN100492961C Method for automatically detecting the clock frequency of a system clock for the configuration of a peripheral device