Patents for H03L 7 - Automatic control of frequency or phase; Synchronisation (37,643)
02/2013
02/05/2013US8368446 Delay locked loop
02/05/2013US8368445 Delay-locked loop
02/05/2013US8368444 Delay locked loop including a mechanism for reducing lock time
02/05/2013US8368443 Differential charge pump circuit
02/05/2013US8368442 Charge pump
02/05/2013US8368441 Semiconductor integrated circuit having an on-chip PLL and operating method thereof
02/05/2013US8368440 Phase-locked-loop circuit including digitally-controlled oscillator
02/05/2013US8368439 Phase locked loop circuit, method of detecting lock, and system having the circuit
02/05/2013US8368438 Phase locked loop circuit and control method thereof
02/05/2013US8368437 Phase locked loop with charge pump
02/05/2013US8368436 Programmable frequency synthesizer with I/Q outputs
02/05/2013US8368435 Method and apparatus for jitter reduction
02/05/2013US8368383 Method for testing a variable digital delay line and a device having variable digital delay line testing capabilities
01/2013
01/31/2013WO2013016530A2 Phase locked loop
01/31/2013WO2013015977A1 Circuitry and method for controlling a characteristic of a periodic signal
01/31/2013WO2013015279A1 Compensation device, signal generator, and wireless communication device
01/31/2013US20130030881 Methods and apparatus for performing financial transactions
01/31/2013US20130027103 Frequency Locking Oscillator
01/31/2013US20130027102 Fractional and integer pll architectures
01/31/2013US20130027101 Phase locked loop
01/31/2013US20130027100 System and Method for Adjusting a Characteristic of A Periodic Signal with Use of a Filtered Bias Voltage
01/31/2013US20130027099 System, Method and Emulation Circuitry Useful For Adjusting a Characteristic of A Periodic Signal
01/31/2013US20130027098 System and Method Providing Bandwidth Adjustment In Integral Path of Phase Locked Loop Circuitry
01/31/2013US20130027097 System Including Circuitry Providing Multiple Circuit Paths For Controlling A Characteristic of A Period Signal
01/31/2013US20130027096 System Including Circuitry For Controlling A Characteristic of a Periodic Signal and Method for Adjusting a Signal
01/31/2013US20130027095 Semiconductor integrated circuit and method for driving the same
01/31/2013US20130027093 Pll
01/31/2013DE10346928B4 Verzögerungseinstellungsschaltung Delay adjustment circuit
01/30/2013EP2550742A1 A phase detector
01/30/2013EP2550741A1 Transceiver comprising sub-sampled frequency-locked loop
01/30/2013CN202713275U Narrowband frequency-adjustable PLL oscillation circuit
01/30/2013CN202713274U Structure of high speed clock data recovery system
01/30/2013CN202713273U Low-noise duty cycle recovery circuit
01/30/2013CN1581699B Phase swallowing device and signal generating device using same
01/30/2013CN102904570A Gas cell unit and atomic oscillator
01/30/2013CN102904569A Oscillator systems having annular resonant circuitry
01/30/2013CN102904568A Self-adaptive grid-tied converter single phase soft phase-locked loop
01/30/2013CN102904567A Phase locked loop device and regulated voltage supply circuit thereof
01/30/2013CN102231628B Time-to-voltage converter-based high-precision pulse width comparison device
01/30/2013CN102158075B Charge pump circuit in charge pump phase-locking loop
01/30/2013CN102098047B Integrally-designed CPT (Coherent Population Trapping) atomic frequency scale physical system
01/30/2013CN102006061B Frequency and phase discriminator and working method thereof
01/30/2013CN101488750B Method and apparatus for oscillation frequency compensation and phase lock loop circuit
01/30/2013CN101227268B Device for generating a sampled ramp signal representative of a synchronization signal, and device for assisting the reconstruction of a synchronization signal
01/29/2013USRE43947 Delay locked loop circuit and method
01/29/2013US8362848 Supply-regulated VCO architecture
01/29/2013US8362845 Method and apparatus to improve performance of GPSDO's and other oscillators
01/29/2013US8362843 Method and apparatus for multi-point calibration for synthesizing varying frequency signals
01/29/2013US8362817 Phase comparator and clock data recovery circuit
01/29/2013US8362816 Reducing an EMI effect by preventing the diffuse width with the SSCG from being limited by the jitter standard value in a structure in which the PLL circuit is mounted
01/29/2013US8362815 Digital phase locked loop
01/29/2013US8362814 Data processing system having brown-out detection circuit
01/24/2013WO2013011972A1 Phase comparison device and dll circuit
01/24/2013WO2013010901A1 Clock generation circuit
01/24/2013WO2012151313A3 Apparatus and method to hold pll output frequency when input clock is lost
01/24/2013WO2012151220A3 Apparatus and methods for adjusting voltage controlled oscillator gain
01/24/2013US20130021106 Clock frequency adjusting method and circuit
01/24/2013US20130021105 Integrated circuit with an internal rc-oscillator and method for calibrating an rc-oscillator
01/24/2013US20130021074 Decision feedback equalizer operable with multiple data rates
01/24/2013US20130021073 Dll phase detection using advanced phase equalization
01/24/2013US20130021072 Dynamic Frequency Control Using Coarse Clock Gating
01/23/2013EP2548306A2 Frequency measuring and control apparatus with integrated parallel synchronized oscillators
01/23/2013CN202696581U Cesium atom frequency standard cesium-beam tube micro-current signal amplifier
01/23/2013CN202696580U Double-tuned phase-locked rapid hopping source
01/23/2013CN102893527A Circuit for clocking an fpga
01/23/2013CN102891680A 直接频率合成器 Direct Frequency Synthesizer
01/23/2013CN102361453B High-speed duty ratio adjustment and double-end-to-single-end circuit for phase-locked loop
01/23/2013CN102291132B Current-mode-logic-based high speed high-oscillation amplitude divide-by-two frequency divider circuit
01/23/2013CN102231629B DDS (direct digital synthesizer) system with phase offset modulation function realized by time sharing alternation
01/23/2013CN102118164B Microwave frequency synthesizing method and synthesizer for exciting PLL (Phase Locking Loop) by DDS (digital display scope) internally provided with frequency mixer
01/23/2013CN102045036B Digital phase lock amplifier
01/23/2013CN101997542B Delay locked loop circuit
01/23/2013CN101971501B Frequency synthesizer
01/23/2013CN101933233B Oscillation frequency control circuit, and DC-DC converter and semiconductor device having the same
01/23/2013CN101917186B Calibration techniques for frequency synthesizers
01/23/2013CN101567689B Phase-locked loop based on equivalent phase demodulation frequency
01/22/2013US8358160 Clock signal generation circuit
01/22/2013US8358159 Adaptive phase-locked loop (PLL) multi-band calibration
01/22/2013US8358158 Method and apparatus for phase selection acceleration
01/22/2013CA2531384C Handling broadcast and multicast traffic as unicast traffic in a wireless network
01/17/2013WO2013008355A1 Frequency synthesizer
01/17/2013US20130015898 Frequency-doubling delay locked loop
01/17/2013US20130015897 Duty ratio correction circuit
01/17/2013US20130015896 Phase-locked loop apparatus and tuning voltage providing circuit thereof
01/17/2013US20130015895 Temperature compensation circuit
01/17/2013US20130015894 Differential ring oscillator-type voltage control oscillator
01/17/2013US20130015893 Multi-clock real-time counter
01/17/2013US20130015892 Double-point modulator with accurate and fast gain calibration
01/16/2013EP2546991A1 Clock generation circuit
01/16/2013EP2546990A1 Method and system for calibrating frequency
01/16/2013CN202679346U Multiplex coherent signal frequency synthesizer
01/16/2013CN202679345U Ku-band ultra-low phase noise frequency source component
01/16/2013CN1829096B Method and system for a lock detector for a phase-locked loop
01/16/2013CN102884726A Loop filter buffer with level shifter
01/16/2013CN102882522A Quantum interference device, atomic oscillator, and magnetic sensor
01/16/2013CN102882521A Quantum interference device, atomic oscillator, and magnetic sensor
01/16/2013CN102882520A Device and method for clock frequency division based on sigma-delta phase locked loop
01/16/2013CN102882519A Adjustable delayer, method for delaying an input signal and polar transmitter
01/16/2013CN102882518A Phase-locked loop system and implementation method for same
01/16/2013CN102882517A Device and method for generating low-distortion low-frequency sinusoidal signal
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