Patents for H03L 7 - Automatic control of frequency or phase; Synchronisation (37,643)
04/2002
04/09/2002US6369647 Demodulator circuit and method of tuning
04/09/2002US6369627 Delay circuit and semiconductor integrated circuit having same
04/09/2002US6369626 Low pass filter for a delay locked loop circuit
04/09/2002US6369625 Phase locked loop circuit
04/09/2002US6369624 Programmable phase shift circuitry
04/09/2002US6369623 Circuit configuration for a frequency divider
04/04/2002WO2002027938A2 High resolution, low jitter frequency synthesizer
04/04/2002WO2002027937A1 Voltage controlled oscillator
04/04/2002WO2002027936A2 Feed forward sigma delta interpolator for use in a fractional-n synthesizer
04/04/2002WO2002027923A2 High-swing transconductance amplifier for charge pump circuit
04/04/2002WO2002027914A2 Multi-frequency band controlled oscillator
04/04/2002WO2001086815A3 Method and apparatus for reducing pll lock time
04/04/2002US20020039894 Frequency synthesizer and multi-band radio apparatus using said frequency synthesizer
04/04/2002US20020039397 Phase comparator circuit
04/04/2002US20020039395 Timing recovery and frequency tracking system and method
04/04/2002US20020039394 Phase interpolator device and method
04/04/2002US20020039052 Quadrature oscillator with phase error correction
04/04/2002US20020039051 VCO circuit with wide output frequency range and PLL circuit with the VCO circuit
04/04/2002US20020039050 VCO tuning curve compensated charge pump current synthesizer
04/04/2002US20020039020 Sample and hold phase detector having low spurious performance and method
04/04/2002DE10044835A1 Taktregenerierungsschaltung zum Regenerieren von Eingangsdaten und Verfahren zur Nutzung Clock recovery circuit for regenerating input data and methods of use
04/04/2002DE10044832A1 Generating e.g. mobile telephone signal using self-adjusting system to enhance purity, produces reference-, error- and improved-purity signals
04/03/2002EP1193879A1 Low noise frequency synthesizer with rapid response and corresponding method for frequency synthesis
04/03/2002EP1193878A1 Frequency synthesizer and low-noise frequency synthesizing process
04/03/2002EP1193877A1 Fast tuning fractional-N frequency synthesizer and corresponding frequency synthesizing process
04/03/2002EP1193876A1 Frequency synthesizer and low-noise frequency synthesizing process
04/03/2002EP1193875A1 Voltage-controlled oscillator with automatic center frequency calibration
04/03/2002EP1193874A1 Phase-locked loop circuit and delay-locked loop circuit
04/03/2002EP1192744A1 Control of phase locked loop during change of synchronisation source
04/03/2002CN1343393A Transmitter-receiver
04/03/2002CN1082280C Communication apparatus
04/03/2002CN1082278C Synchronous transmission phase modulating system for bottle making machine
04/03/2002CN1082275C Apparatus and method for using negative FM feedback in high quality oscillator devices
04/02/2002US6366936 Pipelined fast fourier transform (FFT) processor having convergent block floating point (CBFP) algorithm
04/02/2002US6366769 Frequency snythesizer with a digital frequency window detector and a receiver incorporating the same
04/02/2002US6366768 Circuit and method of frequency synthesizer control with a serial peripheral interface
04/02/2002US6366628 Method and circuit for sampling timing recovery
04/02/2002US6366620 VSAT system
04/02/2002US6366604 Compensation for phase errors caused by clock jitter in a CDMA communication system
04/02/2002US6366225 Circuit and method for determining the phase difference between a sample clock and a sample signal by linear approximation
04/02/2002US6366174 Method and apparatus for providing a clock generation circuit for digitally controlled frequency or spread spectrum clocking
04/02/2002US6366173 Phase synchronous circuit and electronic device using the same
04/02/2002US6366148 Delay locked loop circuit and method for generating internal clock signal
04/02/2002US6366146 Phase-locked loop based clock phasing implementing a virtual delay
04/02/2002US6366145 Linearized digital phase-locked loop
04/02/2002US6366144 Loop filtering apparatus for reducing frequency lock-up time and phase noise of a phase locked loop for use in a mobile terminal
03/2002
03/28/2002WO2002025813A1 Resonator configuration
03/28/2002WO2002025811A1 Component having an acoustically active material
03/28/2002WO2002025806A1 Segmented spectrum clock generator apparatus and method for using same
03/28/2002WO2001059550A3 A secure asynchronous clock multiplexer
03/28/2002US20020038435 Semiconductor integrated circuit system for high-speed data transfer in syschronization with a predetermined clock
03/28/2002US20020037702 Transmitting and receiving apparatus
03/28/2002US20020037065 Clock signal reproduction device
03/28/2002US20020036909 Phase control circuit and switching regulator
03/28/2002US20020036578 Method and arrangement for synchronizing a sigma delta-modulator
03/28/2002US20020036545 Phase lock loop
03/28/2002US20020036544 Feed forward sigma delta interpolator for use in a fractional-N synthesizer
03/28/2002US20020036538 High-swing transconductance amplifier for charge pump circuit
03/28/2002US20020036532 Modified phase interpolator and method to use same in high-speed,low power applications
03/28/2002US20020036527 Delay locked loop circuit for synchronizing internal supply clock with reference clock
03/28/2002US20020036526 Digital phase control using first and second delay lines
03/28/2002US20020036525 Circuit for synchronizing frequencies of clock signals
03/28/2002US20020036524 Synchronizing circuit for generating a signal synchronizing with a clock signal
03/28/2002DE10042233A1 Takt-und Datenregenerator mit Demultiplexerfunktion Clock and data regenerator with Demultiplexerfunktion
03/27/2002EP1191697A2 Local Oscillator for the Generation of an HF-Signal to be Directly Mixed by Avalanche-Photodiodes
03/27/2002EP1191530A2 Optical disk device
03/27/2002EP0962052A4 Temperature insensitive silicon oscillator and precision voltage reference formed therefrom
03/27/2002CN1081860C Synchronization device for digital communications
03/27/2002CN1081853C Method and apparatus for temperature compensation of reference oscillator in communication device
03/26/2002US6362698 Low impedance clamping buffer for an LC tank VCO
03/26/2002US6362693 Frequency detection method for adjusting a clock signal frequency and a frequency detector circuit for carrying out the method
03/26/2002US6362670 Controlled slew reference switch for a phase locked loop
03/26/2002US6362668 Circuit and method for frequency generator control
03/26/2002CA2264470C Timing recovery system
03/21/2002WO2002023715A2 Digital clock skew detection and phase alignment
03/21/2002WO2001089092A3 Apparatus for radio frequency processing with dual modulus synthesizer
03/21/2002US20020035721 Clock modes for a debug port with on the fly clock switching
03/21/2002US20020034932 Method and apparatus for generating a variable capacitance for synthesizing high-frequency signals for wireless communications
03/21/2002US20020034274 Phase detector and phase locked loop circuit
03/21/2002US20020034222 Methods and systems for adaptive receiver equalization
03/21/2002US20020033741 Voltage controlled oscillator with automatic center frequency calibration
03/21/2002US20020033739 Electronically trimmed VCO
03/21/2002US20020033738 PLL circuit
03/21/2002US20020033737 System and method for time dithering a digitally-controlled oscillator tuning input
03/21/2002US20020033736 Frequency synthesizer and method of providing a mixing oscillator signal to a mixer
03/21/2002US20020033721 Delay circuit, voltage-controlled delay circuit, voltage-controlled oscillation circuit, delay adjustment circuit, DLL circuit, and PLL circuit
03/21/2002US20020033714 Digital phase detector circuit and method therefor
03/20/2002EP1189351A2 Method for tuning a voltage controlled oscillator
03/20/2002EP1189348A2 Clock controlling method and circuit
03/20/2002EP1189347A1 Electronically trimmed VCO
03/20/2002EP1188249A1 Spread-spectrum gmsk/m-ary radio with oscillator frequency correction
03/20/2002EP1188242A1 Low power, no deadzone phase frequency detector with charge pump
03/20/2002EP1188229A1 Detector tolerant of frequency misalignment
03/20/2002EP1188228A1 Electronic circuit arrangement generating a transmit frequency
03/20/2002CN1340971A Measurement for trembling, frequency shifting and drift rate of motion image engineering group program timer benchmark
03/20/2002CN1340917A Equipment and method for synchronous timer modulation with power source modulation in band expansion timer system
03/20/2002CN1340809A Circuit for measuring time-lase error parameters of pulse string and optical disc recording device
03/20/2002CN1081406C Semiconductor apparatus for use in low voltage power supply
03/19/2002US6359950 Digital PLL (phase-locked loop) frequency synthesizer
03/19/2002US6359948 Phase-locked loop circuit with reduced jitter