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)
05/2005
05/24/2005US6898741 Arrangements for self-measurement of I/O timing
05/24/2005US6897733 Low offset and low glitch energy charge pump for PLL-based timing recovery systems
05/24/2005US6897695 Semiconductor integrated circuit device and method of detecting delay error in the same
05/24/2005US6897693 Delay locked loop for improving high frequency characteristics and yield
05/24/2005US6897692 Charge pump using dynamic charge balance compensation circuit and method of operation
05/24/2005US6897691 Phase locked loop with low steady state phase errors and calibration circuit for the same
05/24/2005US6897690 Charge pump system for fast locking phase lock loop
05/24/2005CA2385087C Phase detector circuit
05/19/2005WO2005046050A1 Multi-primary distributed active transformer amplifier power supply and control
05/19/2005WO2005045891A2 Method and apparatus for measuring and monitoring coatings
05/19/2005WO2005031738A8 Itr data reproduction device, recording/reproduction system, and interpolation filter
05/19/2005WO2004073293A3 40-gb/s clock and data recovery circuit in 0.18 micrometers technology
05/19/2005US20050107055 Integrated switchless programmable attenuator and low noise amplifier
05/19/2005US20050105662 Data recovery method and module
05/19/2005US20050105661 Phase-locked loop structures with enhanced signal stability
05/19/2005US20050105660 Programmable frequency detector for use with a phase-locked loop
05/19/2005US20050104677 Apparatus and method for phase lock loop gain control using unit current sources
05/19/2005US20050104671 Method and circuit for producing a control voltage for a VCO
05/19/2005US20050104670 Voltage controlled oscillator amplitude control circuit
05/19/2005US20050104668 Arrangement and a method relating to phase locking
05/19/2005US20050104667 Frequency synthesizer having PLL with an analog phase detector
05/19/2005US20050104666 Method and circuit arrangement for synchronizing plural oscillators
05/19/2005US20050104665 On-chip VCO calibration
05/19/2005US20050104646 Clock gated power supply noise compensation
05/19/2005US20050104644 Digital delay device, digital oscillator clock signal generator and memory interface
05/19/2005US20050104640 Apparatus and method for duty cycle correction
05/19/2005US20050104639 Modular dll architecture for generating multiple timings
05/19/2005US20050104638 Clock control method and circuit
05/19/2005US20050104637 System and method for synchronizing divide-by counters
05/19/2005US20050104636 Dynamic resynchronization of clocked interfaces
05/19/2005US20050104634 Frequency divider, PLL circuit and semiconductor integrated circuit
05/19/2005US20050104175 Semiconductor device
05/18/2005CN1618196A Precise synchronization of distributed systems
05/18/2005CN1618166A Temperature compensation type oscillator
05/18/2005CN1618100A Optical record carrier recording device and method comprising means for generating a timing signal having an increased timing resolution
05/18/2005CN1617452A PLL clock signal generation circuit
05/18/2005CN1617451A Digital phase detector
05/18/2005CN1617450A Method for synchronizing plural oscillators
05/18/2005CN1617061A Clock generating circuit
05/18/2005CN1202621C Switch noise inhibiting semiconductor device, phase lock loop circuit and charge pumping circuit
05/18/2005CN1202620C Method for generating double frequency pulse using clock
05/17/2005US6895525 Method and system for detecting phase-locked loop (PLL) clock synthesis faults
05/17/2005US6895523 Generation of pulse signals from a clock signal
05/17/2005US6895063 Frequency changer and digital tuner
05/17/2005US6894572 Device for producing an oscillator signal
05/17/2005US6894571 Phase locked loop circuit with selectable variable frequency dividers
05/17/2005US6894570 Fast frequency locking method and architecture realized by employing adaptive asymmetric charge-pump current mechanism
05/17/2005US6894569 High-performance charge pump for self-biased phase-locked loop
05/17/2005US6894546 Noise reduction for phase locked loop
05/17/2005US6894539 Delay locked loop having phase comparator
05/17/2005CA2375291C Generation of virtual local oscillator inputs for use in direct conversion radio systems
05/12/2005WO2005043757A1 Tuneable frequency translator
05/12/2005WO2005043745A2 Fast-hopping frequency synthesizer
05/12/2005US20050100084 System and method for signal amplification
05/12/2005US20050099413 Method of resetting a shut down integrated circuit spontaneously and the monitor thereof
05/12/2005US20050099239 Function generating circuit and temperature characteristic controlling method for function generating circuit
05/12/2005US20050099235 PLL clock signal generation circuit
05/12/2005US20050099215 Apparatus for calibrating a charge pump and method therefor
05/12/2005US20050099214 Charge pump capable of responding to high frequency
05/12/2005US20050099213 Spark current cancellation in charge pump of high speed phase lock loop circuit
05/12/2005US20050099208 Phase detector, clock distribution circuit, and LSI
05/11/2005EP1530294A1 PLL clock signal generation circuit
05/11/2005EP1530293A2 Voltage controlled oscillator circuit
05/11/2005EP1214822B1 Communication system
05/11/2005EP0932938B1 Arrangement in a communication system
05/11/2005CN1614893A Clock generator and related biasing circuit
05/11/2005CN1614892A Phase lock loop circuit and controlling method thereof
05/11/2005CN1614878A Locking-phase loop style orthogonal signal phase calibrator
05/11/2005CN1613644A Circuit for clock interpolation
05/11/2005CN1201490C Phase synchronous circulation circuit and data regenerator
05/11/2005CN1201480C Frequency transformer
05/10/2005US6891907 Frequency offset correction system and correction method
05/10/2005US6891785 Optical disc reproduction apparatus
05/10/2005US6891774 Delay line and output clock generator using same
05/10/2005US6891444 Oscillator circuit for locking two or more LC-oscillators by mutual inductance coupling
05/10/2005US6891441 Edge synchronized phase-locked loop circuit
05/10/2005US6891440 Quadrature oscillator with phase error correction
05/10/2005US6891420 Method and apparatus for digital frequency synthesis
05/10/2005US6891417 Circuits and methods for alignment of signals in integrated circuits
05/10/2005US6891416 Timing generation circuit and method for timing generation
05/10/2005US6891415 Method and apparatus for enabling a timing synchronization circuit
05/10/2005US6891414 Digital calibration for capacitor voltage non-linearity
05/10/2005US6891413 Periodic signal controller
05/10/2005US6891411 Low injection charge pump
05/10/2005US6891410 Method and apparatus for determining a processing speed of an integrated circuit
05/10/2005US6891404 Auto-adjustment of self-refresh frequency
05/10/2005US6891403 On-chip PLL locked frequency determination method and system
05/10/2005US6891401 Clock loss detection and switchover circuit
05/06/2005WO2005041415A1 A multiband pll arrangement and a method of controlling such arrangement
05/06/2005WO2005041414A2 Multi-band voltage controlled oscillator
05/06/2005WO2005041402A1 Injection-locked oscillator circuit
05/06/2005WO2005041251A2 Digitally controlled delay cells
05/06/2005WO2005026766A3 Mobile communications device with gps receiver and common clock source
05/06/2005WO2005011118A3 A digital pulse width modulator
05/06/2005WO2005004333A3 Gain compensated fractional-n phase lock loop system and method
05/05/2005US20050097381 Clock circuitry on plural integrated circuits
05/05/2005US20050095998 Tunable matching circuit
05/05/2005US20050095992 Synthesiser
05/05/2005US20050094757 Method and apparatus for reducing quantization noise in fractional-N frequency synthesizers
05/05/2005US20050094446 Semiconductor integrated circuit
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