Patents for H03L 7 - Automatic control of frequency or phase; Synchronisation (37,643)
04/2004
04/22/2004WO2004034587A1 Phase-lock loop having a programmable bandwidth
04/22/2004WO2004034586A2 Methods and apparatus for signal modification in a fractional-n phase locked loop system
04/22/2004WO2004034564A2 Trimming of a two point phase modulator
04/22/2004WO2004034557A2 Pwm controller with integrated pll
04/22/2004WO2004032597A2 System and method for maintaining an accurate frequency on a voltage controlled oscillator
04/22/2004WO2004015869A8 Phase-locked-loop circuit and method
04/22/2004US20040077327 Frequency modification circuitry for use in radio-frequency communication apparatus and associated methods
04/22/2004US20040076221 Adjustable spread spectrum clock generator and a method thereof
04/22/2004US20040076189 Multiphase clocking method and apparatus
04/22/2004US20040076055 Delay lock loop circuit useful in a synchronous system and associated methods
04/22/2004US20040075506 Method and apparatus for operating a PLL with a phase detector/sample hold circuit for synthesizing high-frequency signals for wireless communications
04/22/2004US20040075482 Delay unit for periodic signals
04/22/2004US20040075481 Digitally-programmable delay line for multi-phase clock generator
04/22/2004US20040075477 On-chip PLL locked frequency determination method and system
04/22/2004US20040075476 Method and device for generating a synchronisation variable and the corresponding integrated circuit and digital disc drive
04/22/2004DE10327238A1 Verzögerungs-Regelschleife Delay locked loop
04/22/2004DE10296525T5 Chipinterne Schaltungen für ein Hochgeschwindigkeitsspeichertesten mit einem langsamen Speichertester On-chip circuits for high-speed memory testing with a slow memory tester
04/21/2004EP1411638A1 Method and apparatus for generating a signal having a frequency equal to the product of a reference frequency by a real number
04/21/2004EP1411630A1 Crystal oscillator emulator
04/21/2004EP1410511A2 High frequency vcxo structure
04/21/2004EP1410510A2 Pll cycle slip compensation
04/21/2004EP1410504A2 Programmable self-calibrating vernier and method
04/21/2004EP1125383A4 A variable clock rate correlation circuit and method of operation
04/21/2004EP1042871A4 Digital radio-frequency transceiver
04/21/2004CN1491505A Direct digital synthesizer based on delay line with stored tapes
04/21/2004CN1491485A Sigma-delta programming device for PLL-frequency synthesizer
04/21/2004CN1491063A Method for shortening active receiving time and saving power in stand-by mode
04/21/2004CN1490935A Return filter and compensating current adjustable method
04/21/2004CN1490934A Multiphase timing method and timer
04/21/2004CN1147082C Receiving apparatus, receiving method, and digital PLL circuit
04/21/2004CN1147070C Radio communication device and method of bit synchronization pull-in in same
04/21/2004CN1146907C Clock generation circuit
04/20/2004US6725463 Dual mode tuner for co-existing digital and analog television signals
04/20/2004US6725391 Clock modes for a debug port with on the fly clock switching
04/20/2004US6725169 Methods and apparatus for automatic gain control
04/20/2004US6724850 Deterministic hardware behavior between multiple asynchronous clock domains through the novel use of a PLL
04/20/2004US6724804 Frequency converter and radio communications system employing the same
04/20/2004US6724704 Information recording apparatus for writable recording media
04/20/2004US6724272 Method of temperature calibrating a numerically controlled oscillator using low tolerance master crystals
04/20/2004US6724268 Variable delay circuit, and differential voltage-controlled ring oscillator using the same, and PLL using the oscillator
04/20/2004US6724265 Compensation for oscillator tuning gain variations in frequency synthesizers
04/20/2004US6724264 Controller for a device with change in characteristics
04/20/2004US6724230 Semiconductor integrated circuit
04/20/2004US6724228 Clock generating circuit capable of generating internal clock accurately synchronized with external clock
04/20/2004US6724217 CMOS output amplifier independent of temperature, supply voltage and manufacturing quality of transistors
04/15/2004WO2004032494A1 Information processing device and method, program, and recording medium
04/15/2004WO2004032409A1 System and method for transferring data among transceivers substantially void of data dependent jitter
04/15/2004WO2004032327A1 Frequency output generation
04/15/2004WO2004032326A1 Driver device for a voltage-controlled oscillator
04/15/2004US20040071252 Charge pump with transient current correction
04/15/2004US20040071251 Clock offset compensator
04/15/2004US20040071249 Precision timing generation
04/15/2004US20040071227 Apparatus for generating quadrature phase signals and data recovery circuit using the same
04/15/2004US20040071168 System and method for providing network timing recovery
04/15/2004US20040071029 Crystal oscillator emulator
04/15/2004US20040070458 Interleaved vco with balanced feedforward
04/15/2004US20040070437 Delay adjustment circuit
04/15/2004US20040070432 High speed digital phase/frequency comparator for phase locked loops
04/15/2004US20040070431 Circuit and method for generating a local clock signal
04/15/2004DE202004002370U1 Frequency generator with digitally adjustable frequency, consisting of oscillator with stepwise adjustable frequency and pulse width modulator
04/15/2004DE10336300A1 Delay locked loop circuit for memory device, has delay line unit with cells, delaying external clock signal, and selecting output signals of delay cells based on control signals from two control circuits
04/15/2004DE10245799A1 Treibervorrichtung für einen spannungsgesteuerten Oszillator Driving device for a voltage-controlled oscillator
04/15/2004DE10197085T5 Quadratur-Oszillator mit Phasenfehlerkorrektur Quadrature oscillator with phase error correction
04/15/2004DE10047343B4 Resonatoranordnung Resonator
04/14/2004EP1408643A1 Phase detector having improved timing margins
04/14/2004EP1408611A2 Balanced programmable delay element
04/14/2004EP1407553A2 Method and arrangement for synchronizing a sigma-delta-modulator
04/14/2004EP1198879B1 Variable oscillator
04/14/2004EP1180270B1 Method and device for carrying out simplex data transmission
04/14/2004EP1110316B1 Phase-locked loop system
04/14/2004EP0986858A4 Voice-channel frequency synchronization
04/14/2004EP0800724B1 Lamp oscillator for atomic frequency standards
04/14/2004CN2612155Y Super wideband short conversion frequency synthesizer
04/14/2004CN1489828A Oscilating circuit and method for callberating same
04/14/2004CN1488947A Phase tester with improved timing boundary
04/14/2004CN1146223C Phase-locked circuit for horizontal synchronous signal
04/14/2004CN1146158C Radio equipment for time-division multi-address system and regulation circuit for output electric-level of synthesizer
04/14/2004CN1146112C Reliable clock phase detecting logic circuit
04/14/2004CN1146111C Digital communication device
04/14/2004CN1146108C Low-current charge pump and output stage of demodulator integrating such pump
04/14/2004CN1146103C PLL oscillating circuit including oscillating circuit with mutual conductance controlled
04/14/2004CN1145967C Playback clock extracting apparatus
04/13/2004US6721551 Transmitting and receiving apparatus
04/13/2004US6721380 Fully differential CMOS phase-locked loop
04/13/2004US6721379 DAC/Driver waveform generator with phase lock rise time control
04/13/2004US6721377 Method and circuit configuration for resynchronizing a clock signal
04/13/2004US6721289 Radio frequency data communications device
04/13/2004US6721256 Phase detection using sampled data
04/13/2004US6721232 Semiconductor device having phase error improved DLL circuit mounted thereon
04/13/2004US6720959 Area efficient, low power and flexible time digitizer
04/13/2004US6720815 Phase adjustor for semiconductor integrated circuit
04/13/2004US6720810 Dual-edge-correcting clock synchronization circuit
04/13/2004US6720809 Frequency converter enabling a non-integer division ratio to be programmed by means of a unique control word
04/13/2004US6720807 Semiconductor device with clock generation circuit
04/13/2004US6720806 Method and circuit for producing a reference frequency signal using a reference frequency doubler having frequency selection controls
04/08/2004WO2004030232A1 Method of and apparatus for reducing frequency errors associated with an inter-system scan
04/08/2004WO2004030216A1 Voltage-controlled oscillator presetting circuit
04/08/2004WO2004030215A1 Reference timing signal oscillator with frequency stability
04/08/2004WO2004029553A1 Situation dependent lateral terrain maps for avionics displays
04/08/2004WO2004010621A3 Staged locking of two phase locked loops