Patents for H03L 7 - Automatic control of frequency or phase; Synchronisation (37,643)
05/2011
05/25/2011CN101251887B Frequency synthesizer and frequency synthesizing method
05/25/2011CN101227189B Frequency synthesizer and automatic frequency calibration circuit and method
05/25/2011CN101114832B Delta-sigma modulated fractional-n pll frequency synthesizer
05/25/2011CN101110590B Method and device for phase adjustment in the course of detecting time sequence allowance
05/24/2011US7949886 Power supply system for motherboard
05/24/2011US7949083 Clock synchroniser
05/24/2011US7949081 Phase detecting circuit and clock generating apparatus including the same
05/24/2011US7948556 Electronic apparatus and display control method
05/24/2011US7948326 Method for carrying out a frequency change
05/24/2011US7948325 Apparatus and method for phase lock loop gain control using unit current sources
05/24/2011US7948290 Digital PLL device
05/24/2011US7948289 Delay locked loop circuit and semiconductor memory device using the same
05/24/2011US7948288 Digital delay locked loop circuit
05/24/2011US7948287 DLL circuit of semiconductor memory apparatus
05/24/2011US7948286 Bandwidth control apparatus for phase lock loop and method thereof
05/24/2011US7948285 PLL circuit, radio terminal device and control method of PLL circuit
05/24/2011US7948284 Power-on reset circuit
05/24/2011US7948283 Apparatus for awaking an electronic device from a standby mode
05/19/2011WO2011009001A3 Systems and methods for reducing average current consumption in a local oscillator path
05/19/2011WO2010022366A8 Low power radio frequency divider
05/19/2011US20110119519 Method and apparatus for providing symmetrical output data for a double data rate dram
05/19/2011US20110116587 Phase locked loop and satellite communication terminal using the same
05/19/2011US20110115570 Clock generator
05/19/2011US20110115569 Semiconductor integrated circuit
05/19/2011US20110115568 Frequency calibration device and method for programmable oscillator
05/19/2011US20110115567 Clock turn-on strategy for power management
05/19/2011US20110115566 Receiver including an lcd tank filter and method thereof
05/19/2011US20110115536 Adc having inproved sample clock jitter performace
05/19/2011US20110115535 Loop filter and phase locked loop including the same
05/19/2011US20110115534 Optical frequency source
05/19/2011US20110115533 Power-on-reset circuit with brown-out reset for multiple power supplies
05/19/2011US20110115531 Pll circuit
05/19/2011DE112009000729T5 Phasenregelkreismodulation Phase-locked loop modulation
05/18/2011EP2323262A2 Phase locked loop and satellite communication terminal using the same
05/18/2011EP2321662A2 Tracker circuit and method for automated test equipment systems
05/18/2011EP1525662B1 Digitally-controlled oscillator
05/18/2011CN1937400B Direct digital synthesizer, direct digital synthesizer for transmission and detection, and MRI apparatus
05/18/2011CN102067453A Integrated ramp, sweep fractional frequency synthesizer on an integrated circuit chip
05/18/2011CN102067452A Improved system and method for cycle slip prevention in a frequency synthesizer
05/18/2011CN102064846A Frequency synthesizer and frequency synthesizing method
05/18/2011CN102064828A Atomic oscillator
05/18/2011CN102064827A Rubidium oscillator-based standard frequency and time adjusting method
05/18/2011CN102064826A All-digital clock generation circuit and all-digital clock generation method
05/18/2011CN102064825A Clock and data recovery circuit and integrated chip with same
05/18/2011CN102064824A High-speed high-bandwidth VCO (Voltage Controlled Oscillator) delay unit with rail-to-rail voltage regulating range
05/18/2011CN102064823A Hysteresis nonlinear state machine with overlapping thresholds for automatic frequency control
05/18/2011CN102064802A Low-power consumption and low-distortion signal generator based on direct digital frequency synthetic technology
05/18/2011CN101567778B Receiver circuit
05/18/2011CN101106370B Clock control method and circuit
05/18/2011CN101079633B Improved passive Rb atomic frequency standard servo control method and servo control circuit
05/18/2011CN101013897B Variable signal delaying circuit, quadrature frequency converter and radio frequency tuner
05/17/2011US7944503 Interlaced-to-progressive video processing
05/17/2011US7944317 Cold atom micro primary standard
05/17/2011US7944314 Low frequency oscillator for burst-mode dimming control for CCFL driver system
05/17/2011US7944313 Calibrating control loops
05/17/2011US7944312 Active free-running frequency circuit for phase-locked loop applications
05/17/2011US7944261 Method and apparatus for detecting clock loss
05/17/2011US7944260 Clock control circuit and a semiconductor memory apparatus having the same
05/17/2011US7944259 Clock signal generating circuit, display panel module, imaging device, and electronic equipment
05/17/2011US7944258 Semiconductor integrated circuit including delay line of delay locked loop and method of controlling delay time using the same
05/17/2011US7944257 Method and system of optimizing a control system using low voltage and high-speed switching
05/17/2011US7944256 Semiconductor integrated circuit device
05/17/2011US7944255 CMOS bias circuit
05/17/2011US7944254 Switching circuit
05/17/2011US7942833 Motion guide device, and its control system and control program
05/12/2011WO2011056526A2 Digitally controlled uwb millimeter wave radar
05/12/2011WO2011054242A1 Phase discriminator and phase-locked loop circuit
05/12/2011US20110109360 System and method for improved timing synchronization
05/12/2011US20110109359 Variable Capacitance with Delay Lock Loop
05/12/2011US20110109358 Control voltage tracking circuits, methods for recording a control voltage for a clock synchronization circuit and methods for setting a voltage controlled delay
05/12/2011US20110109357 Delay locked loop circuit and semiconductor device having the delay locked loop circuit
05/12/2011US20110109356 Aperture generating circuit for a multiplying delay-locked loop
05/12/2011US20110109355 Semiconductor integrated circuit device
05/12/2011US20110109354 Automatic control of clock duty cycle
05/12/2011US20110109353 Digital pll circuit and method of controlling the same
05/12/2011US20110109316 Magnetic resonance imaging apparatus, phase comparator, control unit and coil unit
05/12/2011DE102006007715B4 Frequenzsynthesizer und Bruchteil-N-Frequenzsyntheseverfahren Frequency synthesizer and fractional-N frequency synthesis process
05/11/2011EP2320570A1 Hysteresis nonlinear state machine with overlapping thresholds for automatic frequency control
05/11/2011EP2319180A1 High-precision and low-consumption quartz oscillator
05/11/2011CN201830238U Frequency synthesis circuit
05/11/2011CN201830237U Soft phase locking ring based on wave filter
05/11/2011CN201830236U High-frequency clock circuit with high phase noise and wide frequency conversion range
05/11/2011CN1705233B Injection locking type frequency dividing circuit and frequency dividing method thereof
05/11/2011CN102057577A Dynamic calibration techniques for digitally controlled oscillator
05/11/2011CN102057576A Digitally-controlled oscillator output in a phase-locked loop
05/11/2011CN102057337A atomic frequency acquisition device based on self-mixing interference
05/11/2011CN102055473A CPT (coherent population trapping) atomic frequency standard based frequency synthesis system
05/11/2011CN102055472A X-waveband voltage-controlled oscillator
05/11/2011CN102055471A Phase detector for timing recovery loop
05/11/2011CN102055470A Digital phase locked loop, frequency regulation method and integrated receiver
05/11/2011CN102055469A Phase discriminator and phase locked loop circuit
05/11/2011CN102055468A Phase locked loop and control method thereof
05/11/2011CN102055442A Frequency locking method of multi-phase delay lock loop in full frequency width
05/11/2011CN102055436A Apparatus and method for correcting duty cycle of clock signal
05/11/2011CN101583047B System and method for generating reset signal
05/11/2011CN101526830B Clock signal generating circuit and digital circuit with same
05/11/2011CN101471910B 5.5-8.2 GHz six-band frequency synthesizer for OFDM UWB
05/11/2011CN101409096B System and method for phase error composition
05/11/2011CN101257349B Digital phase estimating device, digital phase-locked loop and light coherent receiver
05/11/2011CN101228695B Method and apparatus for transceiver frequency synthesis
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