Patents for H03L 7 - Automatic control of frequency or phase; Synchronisation (37,643)
09/2005
09/08/2005US20050195017 High efficiency charge pump with prevention from reverse current
09/08/2005US20050195009 Commutating phase selector
09/08/2005US20050195004 Delay locked loop in semiconductor memory device and its clock locking method
09/08/2005US20050195003 Charge pump circuit using active feedback controlled current sources
09/08/2005US20050195002 Charge pump phase locked loop with improved power supply rejection
09/08/2005US20050195001 Circuit arrangement for production of a reset signal after a supply has fallen and risen again
09/08/2005US20050195000 Power-on detect circuit for use with multiple voltage domains
09/08/2005US20050194960 Broadband subharmonic sampling phase detector
09/08/2005DE10354224A1 Digital phase difference measurement circuit has oscillator circuit with gates, delay device that feeds delayed clock signal back to second gate, counter circuit connected to oscillator circuit output to produce phase difference signal
09/08/2005DE102004007648B3 Phase control circuit for oscillator, with provision for jitter measurement, compares pulse width of output from phase detector with pulse width of output from pulse generator circuit
09/08/2005DE102004007628A1 Circuit structure for electronic control with a specific control variable at a preset set point value has a series unit to generate a reference signal for a phase detector
09/08/2005DE10130123B4 Verzögerungsregelkreis zur Erzeugung komplementärer Taktsignale Delay-locked loop for generating complementary clock signals
09/07/2005EP1571530A1 Frequency modulator apparatus of phase selection type, and frequency synthesizer of phase selection type
09/07/2005EP1570575A2 Phase-locked loop comprising a sigma-delta modulator
09/07/2005EP1402642B1 Frequency locked loop, clock recovery circuit and receiver
09/07/2005CN1666456A Clock data recovery circuit
09/07/2005CN1666418A Phase-locked loop with automatic frequency tuning
09/07/2005CN1665140A The double spot modulating type frequency modulation device, wireless transmit device and wireless communication device
09/07/2005CN1665139A Time pulse generator
09/07/2005CN1665135A Delay signal generator circuit and memory system including the same
09/07/2005CN1664956A Delay locked loop in semiconductor memory device and its clock locking method
09/07/2005CN1218490C Clock signal generator
09/07/2005CN1218489C Adjustable spread spectrum clock generator and implementing method thereof
09/07/2005CN1218473C 多功能高频集成电路结构 Multifunction high frequency integrated circuit structure
09/07/2005CN1218324C Register and signal generating method suitable for wide band
09/06/2005US6941485 Clock supply circuit for supplying a processing clock signal used for processing an input signal having a predetermined frequency
09/06/2005US6941330 Feed forward sigma delta interpolator for use in a fractional-N synthesizer
09/06/2005US6941124 Method of speeding power-up of an amplifier, and amplifier
09/06/2005US6941116 Linearization technique for phase locked loops employing differential charge pump circuitry
09/06/2005US6940938 Phase locked loop having a single sideband modulator
09/06/2005US6940937 Scalable high-speed precision frequency and phase synthesis
09/06/2005US6940934 Synchronizing signal processing circuit
09/06/2005US6940435 Method and system for adjusting the step clock of a delta-sigma transformer and/or switched capacitor filter
09/06/2005US6940359 PLL frequency synthesizer using charge pump
09/06/2005US6940356 Circuitry to reduce PLL lock acquisition time
09/06/2005US6940355 Circular geometry oscillators
09/06/2005US6940330 Timing generator, semiconductor test apparatus, and timing generating method
09/06/2005US6940325 DLL circuit
09/06/2005US6940324 Variation of effective filter capacitance in phase lock loop circuit loop filters
09/06/2005US6940323 Phase locked loop circuit with an unlock detection circuit and a switch
09/06/2005US6940322 High speed phase locked loop
09/01/2005WO2005081449A1 Analog to digital converter clock synchronizer
09/01/2005WO2005081406A1 Analogue self-calibration method and apparatus for low noise, fast and wide-locking range phase locked loop
09/01/2005WO2005081403A1 Phase adjusting circuit for minimizing irregularities at phasesteps
09/01/2005WO2005038870A3 Current starved dac-controlled delay locked loop
09/01/2005US20050193301 CDR-based clock synthesis
09/01/2005US20050190874 Variable phase bit sampling with minimized synchronization loss
09/01/2005US20050190873 Digital-data receiver synchronization method and apparatus
09/01/2005US20050190671 Phase locked loop for generating an output signal
09/01/2005US20050190627 Semiconductor integrated circuit having a power-on reset circuit in a semiconductor memory device
09/01/2005US20050190004 System and method for tuning output drivers using voltage controlled oscillator capacitor settings
09/01/2005US20050190001 Clock signal outputting method, clock shaper and electronic equipment using the clock shaper
09/01/2005US20050190000 Oscillator
09/01/2005US20050189999 Integrated electronic circuit comprising a tunable resonator
09/01/2005US20050189998 Integrable phase-locked loop including an acoustic resonator
09/01/2005US20050189997 Integrable amplitude-locked loop including an acoustic resonator
09/01/2005US20050189995 Multi-primary distributed active transformer amplifier power supply and control
09/01/2005US20050189979 Clock signal generation circuits and methods using phase mixing of even and odd phased clock signals
09/01/2005US20050189974 A multi-stage delay clock generator
09/01/2005US20050189973 Wide output-range charge pump with active biasing current
09/01/2005US20050189972 System and method for achieving low power standby and fast relock for digital phase lock loop
09/01/2005US20050189971 System with dual rail regulated locked loop
09/01/2005US20050189970 Semiconductor integrated circuit having a power-on reset circuit in a semiconductor memory device
09/01/2005DE10393009T5 Stabilisierung von Oszillatoren für einen leistungsarmen Radar-Füllstandtransmitter Stabilization of oscillators for a low-power radar level transmitter
09/01/2005DE10392531T5 PLL für Taktrückgewinnung mit Initialisierungssequenz PLL for clock recovery with initialization
09/01/2005DE102004007172A1 Phaseneinstellungsschaltung für minimale Unregelmäßigkeiten bei Phasenschritten Phase adjustment circuit for minimum irregularities in phase steps
09/01/2005DE102004006254A1 Schaltungsanordnung zur Erzeugung eines Rücksetzsignals nach einem Absinken und Wiederansteigen einer Versorgungsspannung Circuit arrangement for generating a reset signal after a fall and re-rise of a supply voltage
08/2005
08/31/2005EP1569343A1 Radio frequency adjustment system
08/31/2005EP0919084B1 Digital communication device
08/31/2005CN1663126A Tuning system
08/31/2005CN1663112A Transformer coupled quadrature tuned oscillator
08/31/2005CN1662979A Dynamic copy window control for domain expansion reading
08/31/2005CN1661921A Delta/Sigma frequency discriminator
08/31/2005CN1661914A Automatic time constant adjustment circuit
08/31/2005CN1217486C Semiconductor integrated circuit
08/30/2005US6937953 Circuit configuration for receiving at least two digital signals
08/30/2005US6937685 Apparatus and method for counting high-speed early/late pulses from a high speed phase detector using a pulse accumulator
08/30/2005US6937684 Phase discriminator with a phase compensation circuit
08/30/2005US6937683 Compact digital timing recovery circuits, devices, systems and processes
08/30/2005US6937682 Clock-pulse supply unit
08/30/2005US6937680 Source synchronous receiver link initialization and input floating control by clock detection and DLL lock detection
08/30/2005US6937530 Delay locked loop “ACTIVE Command” reactor
08/30/2005US6937195 Inverted-F ferroelectric antenna
08/30/2005US6937106 Built-in jitter measurement circuit for voltage controlled oscillator and phase locked loop
08/30/2005US6937105 Frequency locked loop with improved stability using binary rate multiplier circuits
08/30/2005US6937082 Information processing apparatus with clock generating circuit and information processing apparatus with clock delaying circuit
08/30/2005US6937081 Delay producing method, delay adjusting method based on the same, and delay producing circuit and delay adjusting circuit applied with them
08/30/2005US6937077 Apparatus and method for suppressing jitter within a clock signal generator
08/30/2005US6937076 Clock synchronizing apparatus and method using frequency dependent variable delay
08/30/2005US6937075 Method and apparatus for reducing lock time in dual charge-pump phase-locked loops
08/30/2005US6937073 Frequency multiplier with phase comparator
08/30/2005US6937028 Resistor value detection circuit
08/25/2005WO2005079032A1 Pll circuit, demodulator circuit, ic card, and ic card processing apparatus
08/25/2005WO2005078935A1 Digital phase-locked loop with a rapid transient response
08/25/2005WO2005078934A1 DIGITAL PHASE-LOCKED LOOP FOR SUB-µ-TECHNOLOGIES
08/25/2005WO2005078916A1 Programmable radio transceiver
08/25/2005WO2005078861A2 Inverted-f ferroelectric antenna
08/25/2005WO2005078735A1 Semiconductor memory
08/25/2005WO2005078734A1 Dll circuit
08/25/2005WO2005078464A1 Method and device for testing a phase locked loop