Patents
Sitemap › H03 - Basic electronic circuitry › H03L - Automatic control, starting, synchronisation, or stabilisation of generators of electronic oscillations or pulses › H03L 7 - Automatic control of frequency or phase; Synchronisation
Patents for H03L 7 - Automatic control of frequency or phase; Synchronisation (37,643)
01/2010
01/05/2010US7642824 PLL circuit and method of controlling the same
01/05/2010US7642823 Semiconductor memory device including delay-locked-loop control circuit and control method for effective current consumption management
01/05/2010US7642822 Analog phase-locked loop
01/05/2010US7642821 Method for synchronizing a clock signal with a reference signal, and phase locked loop
12/2009
12/31/2009US20090326862 Clock Duty Cycle Measurement with Charge Pump Without Using Reference Clock Calibration
12/31/2009US20090323457 System and method for synchronizing asynchronous signals without external clock
12/31/2009US20090323456 Multiple device apparatus, systems, and methods
12/31/2009US20090322433 Method of Controlling Voltage-Controlled Oscillator
12/31/2009US20090322432 Frequency synthesizer
12/31/2009US20090322431 Self-biased bipolar ring-oscillator phase-locked loops with wide tuning range
12/31/2009US20090322392 Digital delay locked loop circuit
12/31/2009US20090322391 Phase synchronization apparatus
12/31/2009US20090322390 Duty cycle correction circuit and delay locked loop circuit including the same
12/31/2009US20090322389 Jitter attenuating delay locked loop (dll) using a regenerative delay line
12/31/2009US20090322388 Multi-phase correction circuit
12/31/2009US20090322387 Output enable signal generation circuit for semiconductor memory device
12/30/2009WO2009156795A1 Method and apparatus for generating a modulated waveform signal
12/30/2009WO2009110715A3 Phase locked loop having a retiminng part for the removal of jitter in a programmable frequency divider
12/30/2009EP2137874A2 Clock extraction device with digital feedback control of phase without external adjustment
12/30/2009EP2137873A2 Clock extraction device with digital phase lock, requiring no external control
12/30/2009CN201374689Y Low phase and nose phase-locking frequency doubler
12/30/2009CN201374688Y Device for regulating frequency of crystal oscillator in remote controlling way
12/30/2009CN101617472A Multiple polarity reversible charge pump circuit and related methods
12/30/2009CN101615907A Phase/frequency detector
12/30/2009CN101615906A Clock-synchronization digital phase-locking method and device
12/30/2009CN101615905A Phase-locked loop with power scaling prescaler and multimode bandwidth loop filter
12/30/2009CN100576747C Non-bur CMOS radio frequency divider based on phase switch
12/29/2009US7639724 RF converter with multiple mode frequency synthesizer compatible with a 48 Fo GPS baseband processor
12/29/2009US7639091 Device for generation of a reference frequency and corresponding electronic circuit
12/29/2009US7639090 Phase detector for reducing noise
12/29/2009US7639089 Charge pump with reduced turn-off time and phase locked loop including the same
12/29/2009US7639088 Phase-locked loop start-up techniques
12/29/2009US7639087 Phase-locked loop
12/29/2009US7639086 Thermometer code generator, and frequency-locked loop including the same
12/29/2009US7639054 Techniques for generating programmable delays
12/29/2009US7639053 Spread spectrum clock generator with low jitter
12/29/2009US7639052 Power-on-reset circuitry
12/24/2009US20090316845 Asynchronous multi-clock system
12/24/2009US20090316514 Delay Locked Loop Implementation in a Synchronous Dynamic Random Access Memory
12/24/2009US20090315628 Variance correction method, pll circuit and semiconductor integrated circuit
12/24/2009US20090315627 Phase-locked loop circuitry with multiple voltage-controlled oscillators
12/24/2009US20090315601 Device and method for timing error management
12/24/2009US20090315600 Locked-loop quiescence apparatus, systems, and methods
12/24/2009US20090315599 Circuit with a regulated charge pump
12/24/2009US20090315598 Constant voltage boost power supply
12/24/2009US20090315597 Clock Selection for a Communications Processor having a Sleep Mode
12/24/2009DE102009024892A1 Phasenausrichtungsschaltkreis für einen Zeit/Digital-Wandler in einem digitalen Phasenregelkreis Phase alignment circuit for a time / digital converter in a digital phase-locked loop
12/23/2009WO2009155233A1 Automatic synchronization of an internal oscillator to an external frequency reference
12/23/2009EP2136472A1 Fast-locking bang-bang PLL with low output jitter
12/23/2009EP2135354A1 Power-saving clocking technique
12/23/2009EP2135353A1 Floating dc-offset circuit for phase detector
12/23/2009EP2135108A2 Device for receiving satellite signals including a phase loop with delay compensation
12/23/2009EP1706945B1 Pll circuit
12/23/2009CN201369712Y IRIG-B time code generator with GPS synchronization
12/23/2009CN101610084A Phase-locked loop circuitry with multiple voltage-controlled oscillators
12/23/2009CN101610083A High-speed multi-channel clock data recovery circuit
12/23/2009CN101610082A Source switch-type charge pump applied to phase lock loop
12/23/2009CN100574113C Method and circuit for controlling the parallel operation of multipath coding integrated circuit
12/23/2009CN100574110C Synchronization circuit and synchronization method
12/23/2009CN100574109C Related method and technology for voltage controlling oscillator
12/23/2009CN100574108C Delay locked loop and method of driving the same
12/23/2009CN100574107C Acoustic frequency clock signal generating device
12/23/2009CN100574095C Circuit for tuning conduction capacity time constant
12/23/2009CN100573403C Phase adjusting method and device thereof
12/22/2009US7636409 Digital phase locked loop for regenerating the clock of an embedded signal
12/22/2009US7636020 Mitigating fractional spurs in fractional-N frequency synthesizer systems
12/22/2009US7636019 Phase lock loop pre-charging system and method
12/22/2009US7636018 Phase locked loop with phase shifted input
12/22/2009US7636007 Low jitter high phase resolution PLL-based timing recovery system
12/22/2009US7636002 Clock multiplier and method of multiplying a clock
12/22/2009US7636001 Digital DLL circuit
12/22/2009US7636000 Phase locked loop without a charge pump and integrated circuit having the same
12/22/2009CA2533623C Tunable oscillator
12/22/2009CA2338564C Single chip cmos transmitter/receiver and vco-mixer structure
12/17/2009WO2009152106A2 Dithering a digitally-controlled oscillator output in a phase-locked loop
12/17/2009WO2009152105A2 Dynamic calibration techniques for digitally controlled oscillator
12/17/2009WO2009126374A3 Agile high resolution arbitrary waveform generator with jitterless frequency stepping
12/17/2009US20090310730 Frequency Detector and Phase Locked Loop Having the Same
12/17/2009US20090309665 Low phase noise PLL synthesizer
12/17/2009US20090309664 Phase Alignment Circuit for a TDC in a DPLL
12/17/2009US20090309638 Variable-Length Digitally-Controlled Delay Chain with Interpolation-Based Tuning
12/17/2009US20090309637 Delay line off-state control with power reduction
12/17/2009US20090309633 Charge pump for switched capacitor circuits with slew-rate control of in-rush current
12/16/2009EP2132876A1 Method, can bus driver, and can bus system for recovering a clock frequency of a can bus
12/16/2009EP1380111B1 Ring oscillator, detector, receiver and device for reproducing an information carrier
12/16/2009CN201362719Y Circuit structure for realizing synchronization of oscillators between cells
12/16/2009CN101605115A Method for realizing passive oriented buoy digital de-multiplexer
12/16/2009CN101604172A Voltage control method based on phase-lock loop of decoupling multi-coordinate system
12/16/2009CN100571040C SigmaDelta modulator of PLL circuit
12/16/2009CN100571039C Phase-lock ring and phase-locking operation method
12/16/2009CN100570679C Digital phase calibration method and system
12/16/2009CN100570577C High-speed program tracing
12/15/2009US7634752 System and method for design entry and synthesis in programmable logic devices
12/15/2009US7634035 Phase comparison circuit and clock recovery circuit
12/15/2009US7633351 Differential ring oscillator
12/15/2009US7633348 Frequency-locking device and frequency-locking method thereof
12/15/2009US7633347 Apparatus and method for operating a phase-locked loop circuit
12/15/2009US7633324 Data output strobe signal generating circuit and semiconductor memory apparatus having the same
12/15/2009US7633323 Delayed locked loop
12/15/2009US7633322 Digital loop circuit for programmable logic device
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