H03L 7 - Automatic control of frequency or phase; Synchronisation

Patents for H03L 7 - Automatic control of frequency or phase; Synchronisation (37,643)
12/2004
12/28/2004	US6836153 Systems and methods for phase detector circuit with reduced offset
12/23/2004	WO2004112251A1 High speed phase locked loop
12/23/2004	WO2004075411A3 System and method for coarse tuning a phase locked loop (pll) synthesizer using 2-pi slip detection
12/23/2004	WO2004032597A3 System and method for maintaining an accurate frequency on a voltage controlled oscillator
12/23/2004	US20040258193 Fraction frequency divider, integrated circuit for video signal, and fraction frequency dividing method
12/23/2004	US20040258188 Clock and data recovery device coping with variable data rates
12/23/2004	US20040258187 Recovery of clock and data using quadrature clock signals
12/23/2004	US20040258186 Method and a device for phase and frequency comparison
12/23/2004	US20040258183 High speed circuits for electronic dispersion compensation
12/23/2004	US20040258181 Differential receiver circuit with electronic dispersion compensation
12/23/2004	US20040258145 Differential receiver circuit with electronic dispersion compensation for optical communications systems
12/23/2004	US20040257722 System to vary capacitance based on a control signal
12/23/2004	US20040257163 Additive phase detector and its use in high speed phase-locked loops
12/23/2004	US20040257162 Charge pump for eliminating dc mismatches at common drian nodes
12/23/2004	US20040257143 Switched capacitor circuit capable of eliminating clock feedthrough by complementary control signals for digital tuning VCO
12/23/2004	US20040257137 Techniques for dynamically selecting phases of oscillator signals
12/23/2004	US20040257133 Semiconductor integrated circuit
12/23/2004	US20040257130 Multiple clock generator with programmable clock skew
12/23/2004	US20040257124 Spread spectrum clock generator capable of frequency modulation with high accuracy
12/23/2004	DE10120764B4 Schaltung zum Synchronisieren von Signalen beim Informationsaustausch zwischen Schaltkreisen Circuit for synchronizing signals in information exchange between circuits
12/22/2004	EP1489753A2 High frequency signal receiver
12/22/2004	EP1488560A1 Desynchronizer having ram based shared digital phase locked loops and sonet high density demapper incorporating same
12/22/2004	EP1488481A2 Phase-locked loop control of passively q-switched lasers
12/22/2004	EP1386218B1 Frequency control circuit
12/22/2004	EP1018219B1 Digital frequency synthesis by sequential fraction approximations
12/22/2004	CN1557089A Process, arrangement, devices for seizure of a shared telephone line
12/22/2004	CN1556612A Network medium content safety macromonitoring method
12/22/2004	CN1181613C Clock control method and electric circuit
12/21/2004	US6834367 Built-in self test system and method for high speed clock and data recovery circuit
12/21/2004	US6834355 Circuit in which the time delay of an input clock signal is dependent only on its logic phase width and a ratio of capacitances
12/21/2004	US6834255 Timing control means for automatic compensation of timing uncertainties
12/21/2004	US6834183 VCO gain tracking for modulation gain setting calibration
12/21/2004	US6834087 Delay lock loop circuit, and associated method, for a radio receiver
12/21/2004	US6833971 Digital VFO device
12/21/2004	US6833820 Tunable monopole antenna
12/21/2004	US6833767 Frequency synthesizer using digital pre-distortion and method
12/21/2004	US6833766 Adaptive loop gain control circuit for voltage controlled oscillator
12/21/2004	US6833765 Frequency locked loop with improved stability using binary rate multiplier circuits
12/21/2004	US6833764 Apparatus and method for synthesizing a frequency using vernier dividers
12/21/2004	US6833763 CDR lock detector with hysteresis
12/21/2004	US6833744 Circuit for correcting duty factor of clock signal
12/21/2004	US6833740 Sinusoidal frequency generator and periodic signal converter using thereof
12/16/2004	WO2004109970A1 Transmission system, receiver, test equipment and test head
12/16/2004	WO2004109928A1 Frequency synthesizer and radio communication device
12/16/2004	WO2004109927A1 Bit-detection arrangement and apparatus for reproducing information
12/16/2004	WO2004109917A1 High resolution pwm generator or digitally controlled oscillator
12/16/2004	WO2004070937A3 System and method for calibrating the clock frequency of a clock generator unit over a data line
12/16/2004	US20040252805 Fractional frequency divider
12/16/2004	US20040252804 Clock and data recovery circuit
12/16/2004	US20040252803 Low-pass filter and phase locked loop
12/16/2004	US20040252802 Data transmission device and input/output interface circuit
12/16/2004	US20040252800 Multi-channel line interface unit with on-chip clock management
12/16/2004	US20040252569 Signal generating circuit including delay-locked loop and semiconductor device including signal generating circuit
12/16/2004	US20040252039 Method and device for converting a quantized digital value
12/16/2004	US20040251974 PLL circuit, communication apparatus equipped with PLL circuit, and frequency adjustment method
12/16/2004	US20040251973 Voltage controlled oscillator, PLL circuit, pulse modulation signal generating circuit, semiconductor laser modulation device and image forming apparatus
12/16/2004	US20040251972 Low-power phase-locked-loop and method
12/16/2004	US20040251970 Method for clock generator lock-time reduction during speedstep transition
12/16/2004	US20040251939 Devices for synchronizing clock signals
12/16/2004	US20040251938 Sampling-error phase compensating apparatus and method thereof
12/16/2004	US20040251937 High speed phase locked loop
12/16/2004	US20040251936 Clock synchronizing apparatus and method using frequency dependent variable delay
12/16/2004	DE10306313B4 Verfahren und Vorrichtung zur Erzeugung eines Systemtakts Method and apparatus for generating a system clock
12/16/2004	DE102004014970A1 Feed forward clock and data recovery unit for multiple lane application, has feed forward phase tracking unit to track sampling time to center of unit interval of received bit stream, and data recognition unit to recover stream
12/15/2004	EP1487109A1 Low-pass filter and phase locked loop
12/15/2004	EP1486973A1 Information recording apparatus for writable recording media
12/15/2004	EP1486000A1 Frequency converter and methods of use thereof
12/15/2004	EP1485999A1 Method and apparatus for digital frequency conversion
12/15/2004	EP1485989A1 Oscillator and pll circuit using the same
12/15/2004	EP1428319A4 Dynamic control of a phase-locked loop
12/15/2004	CN2664290Y A circuit structure for temperature-compensation and frequency correction of oscillation frequency source
12/15/2004	CN1555052A Detecting and correcting method for optical disc reading clock pulse and its circuit
12/15/2004	CN1555004A Display card for increasing video play smooth degree
12/15/2004	CN1180535C Phase-locking device and method correcting phase-locking frequency in scrambling mode
12/14/2004	US6832325 Device on a source synchronous bus sending data in quadrature phase relationship and receiving data in phase with the bus clock signal
12/14/2004	US6832173 Testing circuit and method for phase-locked loop
12/14/2004	US6831523 Auto-detection between referenceless and reference clock mode of operation
12/14/2004	US6831522 Method of minimizing the short-term frequency instability of laser-pumped atomic clocks
12/14/2004	US6831492 Common-bias and differential structure based DLL
12/14/2004	US6831491 Systems and methods for correcting phase locked loop tracking error using feed-forward phase modulation
12/14/2004	US6831490 Clock synchronization circuit and method
12/14/2004	US6831485 Phase frequency detector with a narrow control pulse
12/09/2004	WO2004107582A1 A self-calibrated constant-gain tunable oscillator
12/09/2004	WO2004107581A1 An apparatus for providing an oscillating signal to a load
12/09/2004	WO2004107579A2 Dll with digital to phase converter compensation
12/09/2004	WO2004107568A1 Low pass filter and electronic device
12/09/2004	US20040250284 Methods and apparatus for selecting baseband filter passband frequency and local oscillator frequencies
12/09/2004	US20040250006 Method of accessing data of a computer system
12/09/2004	US20040248533 Adjustment of a phase difference between two signals
12/09/2004	US20040247066 Phase-locked loop circuit, delay locked loop circuit, timing generator, semiconductor test instrument, and semiconductor integrated circuit
12/09/2004	US20040247065 Method and device for synchronisation of data transmission between tow circuits
12/09/2004	US20040247049 Extending PPM tolerance using a tracking data recovery algorithm in a data recovery circuit
12/09/2004	US20040247045 Device for receiving series data
12/09/2004	US20040247027 Clock generator circuit using phase modulation technology and method thereof
12/09/2004	US20040246809 Integrated circuit including processor and crystal oscillator emulator
12/09/2004	US20040246058 Method and apparatus for generating high frequency signals by a plurality of low frequency signals with multiple phases
12/09/2004	US20040246057 Low gain phase-locked loop circuit
12/09/2004	US20040246041 Feedback control system and method
12/09/2004	US20040246036 Delay stage insensitive to operating voltage and delay circuit including the same
12/09/2004	US20040246033 Synchronizer signal generator device and process for generating a synchronizer signal

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