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)
11/2003
11/06/2003WO2002103911A3 Method and apparatus for a clock circuit
11/06/2003WO2002097992A3 Low voltage charge pump for use in a phase locked loop
11/06/2003US20030207672 Wideband tuning circuit for low-voltage silicon process and method for generating a tuning frequency
11/06/2003US20030206071 Voltage ID based frequency control for clock generating circuit
11/06/2003US20030206070 Digitally controlled crystal oscillator with integrated coarse and fine control
11/06/2003US20030206068 Frequency control for clock generating circuit
11/06/2003US20030206066 Use of configurable capacitors to tune a self based phase locked loops
11/06/2003US20030206065 Apparatus and method for phase lock loop gain control using unit current sources
11/06/2003US20030206043 Escalator code-based DAC and delay-locked loop apparatus and corresponding methods
11/06/2003US20030206042 Coarse calibration circuit using variable step sizes to reduce jitter and a dynamic course calibration (dcc) circuit for a 2 ghz vco
11/05/2003EP1359670A1 Analog implementation of spread spectrum frequency modulation in a programmable phase locked loop (PLL) system
11/05/2003CN1453934A Different-frequency and same-source signal generator
11/05/2003CN1127261C Data processing device
11/05/2003CN1127214C Data and clock recovery PLL circuit using window phase comparator
11/05/2003CN1127200C Frequency synthetic circuit regulated by digit
11/05/2003CN1127199C Voltage-controlled broadband sine-wave oscillator
11/04/2003US6643820 Signal processing circuit with timing recovery PLL
11/04/2003US6643499 Apparatus and method for controlling a phase-locked loop circuit
11/04/2003US6643347 Clock signal generation apparatus
11/04/2003US6643346 Frequency detection circuit for clock recovery
11/04/2003US6643345 Synchronous control apparatus and method
11/04/2003US6642805 Apparatus and compensation method for ports variation
11/04/2003US6642801 Oscillator using virtual stages for multi-gigabit clock recovery
11/04/2003US6642800 Spurious-free fractional-N frequency synthesizer with multi-phase network circuit
11/04/2003US6642799 Phase lock loop destress circuit
11/04/2003US6642771 Integrated XOR/summer/multiplexer for high speed phase detection
11/04/2003US6642766 Digital circuit, LSI including the same and method for removing noise
11/04/2003US6642762 Method and apparatus to ensure DLL locking at minimum delay
11/04/2003US6642761 Interface circuit of various clock period between a fast slope signal and a very slow slope, voltage controlled delay cell
11/04/2003US6642760 Apparatus and method for a digital delay locked loop
11/04/2003US6642759 Charge pump using switched capacitors for phase-locked loop control and method of operation
11/04/2003US6642758 Voltage, temperature, and process independent programmable phase shift for PLL
11/04/2003US6642754 Clock signal generator employing a DDS circuit
11/04/2003US6642701 Device and method for testing phase-locked loops
10/2003
10/30/2003WO2003090358A1 Dual loop pll
10/30/2003WO2003056702A8 Method and device for converting a quantized digital value
10/30/2003WO2003041277A3 A communication semiconductor integrated circuit device and a wireless communication system
10/30/2003US20030204767 Clock recovery circuit for high-speed data signal transmission
10/30/2003US20030204766 Clock-signal generation device, communication device, and semiconductor device
10/30/2003US20030204542 Interpolator
10/30/2003US20030203724 Accurate gain direct modulation (KMOD) using a dual-loop PLL
10/30/2003US20030203720 Communication semiconductor integrated circuit device and wireless communication system
10/30/2003US20030202804 Phase frequency synchronism circuitry and optical receiver
10/30/2003US20030201841 Post-silicon phase offset control of phase locked loop input receiver
10/30/2003US20030201840 NCO with rational frequency and normalized phase
10/30/2003US20030201838 Adaptive variable frequency clock system for high performance low power microprocessors
10/30/2003US20030201836 NCO based timebase recovery system and method for A/V decoder
10/30/2003US20030201813 Multi-phase clock generation and synchronization
10/30/2003US20030201812 DLL circuit
10/30/2003US20030201809 Circuit for post-silicon control of delay locked loop charge pump current
10/30/2003US20030201808 Post-silicon control of phase locked loop charge pump current
10/30/2003US20030201805 Fractional-N baseband frequency synthesizer in bluetooth applications
10/30/2003US20030201786 PLL semiconductor device with testability, and method and apparatus for testing same
10/29/2003EP1357667A1 Frequency synthesizer and transceiver including same
10/29/2003EP1357460A2 A numerically controlled oscillator (NCO) for generating rational frequencies
10/29/2003EP1356651A2 Compensation method for a transceiver using two-point modulation
10/29/2003EP1356591A1 Feedback loop with slew rate limiter
10/29/2003EP1356364A1 Method and device for generating a synchronisation variable and the corresponding integrated circuit and digital disc drive
10/29/2003EP1252707B1 Multifunction high frequency integrated circuit structure
10/29/2003EP0986857B1 Apparatus and method for microwave field strength stabilization in cell type atomic clocks
10/29/2003CN1452811A Method for operating oscillator and electric circuit arrangement and phase-locked loop
10/29/2003CN1452798A Subminiature microwave cavity
10/29/2003CN1452319A Network synchronization slave clock phase-locked loop capable of integrating
10/29/2003CN1126318C Clock delay circuitry and oscillation circuitry and phase synchronization circuitry using clock delay circuitry
10/29/2003CN1126282C Apparatus and method for radio communication
10/29/2003CN1126255C Synchronisation unit for component group
10/29/2003CN1126254C Clock generator circuit and clock generating method
10/28/2003US6640311 Redundant oscillator and method for generating a regulated signal
10/28/2003US6640194 Timing jitter frequency detector for timing recovery systems
10/28/2003US6639958 Circuit configuration for the interference-free initialization of delay locked loop circuits with fast lock
10/28/2003US6639952 Demodulator synchronization loop lock-in detection circuit
10/28/2003US6639933 Phase-locked loop circuit and radio communication apparatus using the same
10/28/2003US6639491 Tunable ferro-electric multiplexer
10/28/2003US6639481 Transformer coupled quadrature tuned oscillator
10/28/2003US6639479 Highly stable integrated time reference
10/28/2003US6639476 Correlator stabilized digitally tuned oscillator synthesizer
10/28/2003US6639475 PLL circuit
10/28/2003US6639474 Adjustable oscillator
10/28/2003US6639439 Reducing voltage variation in a phase locked loop
10/23/2003WO2003088497A1 Quadrature phase control loop
10/23/2003WO2003088496A1 Current saving technique for charge pump based phase locked loops
10/23/2003WO2003088494A1 Low leakage charge pump
10/23/2003WO2003088493A1 Apparatus and method for symbol timing recovery
10/23/2003WO2003088492A1 Data-directed frequency-and-phase lock loop
10/23/2003WO2003088491A1 Data-directed frequency acquisition loop
10/23/2003WO2003088489A2 Pll for clock recovery with initialization sequence
10/23/2003WO2003088485A1 The time of flight system on a chip
10/23/2003WO2003088484A1 Vco tuning curve compensated charge pump current synthesizer
10/23/2003WO2003088462A2 Dc-to-dc converter providing stable operation
10/23/2003WO2003088100A2 Automatic phase lock loop design using geometric programming
10/23/2003WO2003047109A3 Bit-detection arrangement and apparatus for reproducing information
10/23/2003WO2003021600A3 Methods and apparatus utilizing flash burst mode to improve processor performance
10/23/2003US20030200518 Clock control circuit and method
10/23/2003US20030199262 Multi-clock domain data input-processing device having clock-reciving locked loop and clock signal input method thereof
10/23/2003US20030199253 Multi-frequency synthesizer apparatus and method
10/23/2003US20030198311 Fractional-N frequency synthesizer and method
10/23/2003US20030198237 DAC/driver waveform generator with phase lock rise time control
10/23/2003US20030198152 Method of consecutive writing on recordable disc
10/23/2003US20030198105 Clock recovery circuit and data receiving circuit
10/23/2003US20030197570 Adaptive loop gain control circuit for voltage controlled oscillator
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