Patents for H03L 7 - Automatic control of frequency or phase; Synchronisation (37,643)
02/2007
02/08/2007US20070030040 Delay circuit and delay synchronization loop device
02/08/2007US20070030039 Regenerative power-on control circuit
02/07/2007EP1749256A1 Automatic clock speed control
02/07/2007CN1910947A Synchronization of time base units
02/07/2007CN1910820A Oscillator array and its synchronization method
02/07/2007CN1909441A Wide range and dynamically reconfigurable clock data recovery architecture
02/07/2007CN1909423A Data differentiating circuit for clock data recovery circuit and its differentiating method
02/07/2007CN1909376A Phase and frequency detection circuits
02/07/2007CN1909375A Real-time clock device and current time compensating method
02/07/2007CN1909374A All digital implementation of clock spectrum spreading (dither) for low power/die area
02/07/2007CN1909373A Method and circuit for developing spread-spectrum or overfrequency clock
02/07/2007CN1299462C Frequency synthesizer, clock signal synthesizing method and oscillator signal synthesizing device
02/07/2007CN1299201C Methods and apparatus for improving throughput of cache-based embedded processors by switching tasks in response to a cache miss
02/06/2007US7174543 High-speed program tracing
02/06/2007US7174474 Distributed autonomous control system for multi-axis motion control
02/06/2007US7174144 Calibration of a phase locked loop
02/06/2007US7174087 Playback apparatus and adaptive equalizing circuit with a phase-locked loop coupled thereto
02/06/2007US7173995 Systems and methods for correcting gain error due to transition density variation in clock recovery systems
02/06/2007US7173749 Opto-electronic feedback for stabilizing oscillators
02/06/2007US7173668 Equilibrium based horizontal sync detector for video decoder
02/06/2007US7173496 On-Chip variable oscillator method and apparatus
02/06/2007US7173494 Method and system for operating a feedback system for a voltage controlled oscillator that involves correcting for offset related to the feedback system
02/06/2007US7173493 Range controller circuit and method
02/06/2007US7173466 Timing signal generating circuit having simple configuration with low supply voltage and generating timing signals with high accuracy
02/06/2007US7173463 Generating multi-phase clock signals using hierarchical delays
02/06/2007US7173462 Second order delay-locked loop for data recovery
02/06/2007US7173461 Self-biased phased-locked loop
02/06/2007US7173460 Sampling phase detector for delay-locked loop
02/06/2007US7173459 Trimming method and apparatus for voltage controlled delay loop with central interpolator
02/06/2007CA2388977C Method and apparatus for vertically locking input and output signals
02/01/2007WO2007013226A1 Receiver apparatus and electronic device using the same
02/01/2007US20070026834 High frequency semiconductor integrated circuit device, wireless electric unit and wireless communication system
02/01/2007US20070024749 Video processing apparatus and method
02/01/2007US20070024383 Phase Locked Loop Fast Lock Method
02/01/2007US20070024382 Method for modulating phase or frequency in a communication system using clock division
02/01/2007US20070024381 Charge supply apparatus and method in frequency synthesizer
02/01/2007US20070024380 Apparatus and method for emulating a component in a circuit
02/01/2007US20070024379 Low-noise fine-frequency tuning
02/01/2007US20070024378 Voltage shift control circuit for pll
02/01/2007US20070024335 Delay-locked loop circuit
02/01/2007US20070024334 Sharing common calibration components
02/01/2007US20070024333 Power detection circuit for non-contact IC card or RFID tag
02/01/2007US20070024332 All MOS power-on-reset circuit
02/01/2007US20070024331 Bias generator with feedback control
01/2007
01/31/2007EP1748562A1 Clock generating circuit and clock generating method
01/31/2007CN2865141Y Synchro clock and frame head non-backlash supply circuit
01/31/2007CN1906854A Circuit for auto-clamping input pins to a definite voltage during power-up or reset
01/31/2007CN1905612A Image processing device for forbidding copying and forging pattern and its controlling method
01/31/2007CN1905372A Automatic frequency control loop circuit
01/31/2007CN1298111C Low noise microwave synthesizer employing high frequency combs for tuning drift cancel loop
01/31/2007CN1298110C Low pass filter circuit, feedback system and semiconductor integrated circuit
01/31/2007CN1298109C Novel lock phase detection circuit
01/30/2007US7171318 PLL filter leakage sensor
01/30/2007US7171183 Linearized fractional-N synthesizer having a current offset charge pump
01/30/2007US7171182 Frequency synthesizers for supporting voice communication and wireless networking standards
01/30/2007US7170965 Low noise divider module for use in a phase locked loop and other applications
01/30/2007US7170964 Transition insensitive timing recovery method and apparatus
01/30/2007US7170963 Clock recovery method by phase selection
01/30/2007US7170960 Instantaneous clock recovery circuit
01/30/2007US7170867 Radio frequency data communications device
01/30/2007US7170800 Low-power delay buffer circuit
01/30/2007US7170359 Amplitude-controlled oscillator circuit and method for operating an amplitude-controlled oscillator circuit
01/30/2007US7170358 Voltage controlled oscillator, and PLL circuit and wireless communication apparatus using the same
01/30/2007US7170356 Circuit with variable capacitance and method for operating a circuit with variable capacitance
01/30/2007US7170354 Oscillator circuit with laser-trimmable load impedance
01/30/2007US7170333 Clock control method and circuit
01/30/2007US7170331 Delay circuit
01/30/2007US7170323 Delay locked loop harmonic detector and associated method
01/30/2007US7170322 System and method for reducing transient response in a fractional N phase lock loop
01/30/2007US7170319 Method and an apparatus to reduce duty cycle distortion
01/30/2007CA2236423C Clock signal cleaning circuit
01/25/2007WO2007010689A1 Clock generation device, on-vehicle device, and clock generation method
01/25/2007WO2007009918A1 Method and apparatus for transceiver frequency synthesis
01/25/2007US20070021933 Phase detector
01/25/2007US20070019109 Method and apparatus for frequency synthesis in direct-conversion transmitters
01/25/2007US20070018871 Multiple stage delta sigma modulators
01/25/2007US20070018748 Low pass filter and electronic device
01/25/2007US20070018747 Apparatus and method for phase lock loop gain control
01/25/2007US20070018736 Process-insensitive self-biasing phase locked loop circuit and self-biasing method thereof
01/25/2007US20070018735 Phase locked loop circuit
01/25/2007US20070018734 Method and apparatus for stabilizing output frequency of pll (phase lock loop) and phase lock loop thereof
01/25/2007US20070018733 Phase locked loop having cycle slip detector capable of compensating for errors caused by cycle slips
01/25/2007US20070018732 Method and apparatus for transceiver frequency synthesis
01/25/2007US20070018731 Device for setting a frequency
01/25/2007US20070018703 Jitter tolerance testing apparatus, systems, and methods
01/25/2007US20070018702 Delay-locked loop circuit with variable bias voltages and method of clock synchronization for a semiconductor memory device
01/25/2007US20070018701 Charge pump apparatus, system, and method
01/25/2007US20070018700 Charge pump control circuit and control method thereof
01/25/2007US20070018699 Partial cascode phase locked loop architecture
01/25/2007US20070018698 Method and apparatus for implementing fault tolerant phase locked loop (PLL)
01/24/2007EP1746729A1 Reference frequency generation device and corresponding electronic circuit
01/24/2007EP1746724A1 Equiphase polyphase clock signal generator circuit and serial digital data receiver circuit using the same
01/24/2007EP1745550A1 Method and device for producing an oscillation with variable frequency
01/24/2007EP1745546A2 Method and apparatus for synchronizing a clock generator in the presence of jittery clock sources
01/24/2007EP1745486A1 Multiple data rate ram memory controller
01/24/2007EP1634375B1 Delayed locked loop phase blender circuit
01/24/2007EP1436896B1 Phase-switched dual-mode divider counter circuit for a frequency synthesizer
01/24/2007EP1336270B1 An arrangement for capturing data
01/24/2007EP1228564A4 Single chip cmos transmitter/receiver and method of using same
01/24/2007CN1902825A Pll电路 Pll circuit