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)
01/1991
01/19/1991WO1991001590A1 Low voltage vco temperature compensation
01/19/1991CA2064086A1 Low voltage vco temperature compensation
01/18/1991CA2021233A1 Phase-locked loop type frequency synthesizer having improved loop response
01/16/1991EP0408238A2 A frequency synthesiser
01/16/1991EP0390800A4 Integratable phase-locked loop
01/16/1991EP0228433B1 Frequency dividing arrangements
01/12/1991WO1991001063A1 Device with a multiplicity of independent, identical oscillators operating synchronously
01/12/1991CA2035887A1 Device with a multiplicity of independent, identical oscillators operating synchronously
01/09/1991EP0406949A1 Oscillator circuit
01/09/1991EP0406947A1 Synchronizing circuit including an oscillator
01/09/1991EP0406469A1 Digital control circuit for tuning systems
01/09/1991CN1048470A Frequency synthesizer with interface controller and buffer memory
01/08/1991US4984255 Edge transition insensitive delay line system and method
01/08/1991CA1278847C Reducing cycle slippage errors in loran-c for vehicles undergoing acceleration
01/08/1991CA1278833C Synchronizing clock signal generator
01/08/1991CA1278832C Bit synchronization circuit
01/02/1991EP0405523A2 Charge pump circuit
01/02/1991EP0404778A1 Frequency control system
01/02/1991CA1278611C Phase controlled demodulator for digital communications system
01/02/1991CA1278609C Multi-channel modulated numerical frequency synthesizer
01/01/1991US4982387 Digital time base with differential period delay
01/01/1991US4982195 Servo control with self calibrating preset
01/01/1991US4982170 Signal processing apparatus
01/01/1991US4982110 Clock generator circuit and a synchronizing signal detection method in a sampled format system and a phase comparator circuit suited for generation of the clock
12/1990
12/30/1990WO1991000651A1 Frequency synthesizer with an interface controller and buffer memory
12/27/1990EP0404230A2 Phase locked loop
12/27/1990EP0403990A2 High resolution sample clock generator with deglitcher
12/27/1990CA1278383C Digital phase synchronizer
12/25/1990US4980899 Method and apparatus for synchronization of a clock signal generator particularly useful in a digital telecommunications exchange
12/25/1990US4980653 Phase locked loop
12/25/1990US4980652 Frequency synthesizer having compensation for nonlinearities
12/25/1990US4980585 Method and apparatus for synthesizing digital waveforms
12/21/1990CA2019347A1 High resolution sample clock generator with deglitcher
12/19/1990EP0403006A1 Digital phase-locked loop (PLL)
12/19/1990EP0402736A2 Phase-difference detecting circuit
12/19/1990EP0402711A1 Circuit arrangement for the correct-phase regeneration of a clock signal
12/19/1990CN1010915B Phase sampling frequency synthesizer
12/18/1990US4979192 Circuit for detecting a synchronizing signal
12/18/1990US4978930 Low voltage VCO temperature compensation
12/13/1990WO1990015482A1 Dual state phase detector having frequency steering capability
12/13/1990WO1990015397A1 Multiplier circuit
12/13/1990DE3914249A1 Clock pulse recovery from input signal - digitises input signal by comparison clock pulse in different phase positions, and correcting comparison pulse frequency
12/12/1990EP0402113A2 VCO frequency control circuit
12/12/1990CN1047773A Voltage control oscillator with automatic current control
12/11/1990CA1277724C Digital phase-locked loops
12/05/1990EP0400397A2 Synchronisation method of a counter generated clock on a reference clock
12/04/1990US4975930 Digital phase locked loop
12/04/1990US4975928 Device for deriving a clock signal using a gated phase-locked loop having means for suspending the gating at device turn-on
12/04/1990US4975660 Method and apparatus for automatic phase adjustment in a phase locked loop
12/04/1990US4975651 Digital phase locked loop circuit
12/04/1990US4975650 Phase detector
12/04/1990CA1277376C Narrowband phase-lock loop circuit with automatic convergence
12/03/1990WO1990015484A1 Voltage control oscillator with automatic current control
11/1990
11/27/1990US4974234 Method of and circuit for the measurement of jitter modulation of zero-related digital signals
11/27/1990US4973876 Ultrasonic power supply
11/22/1990EP0398174A2 Method for incorporating window strobe in a data synchronizer
11/20/1990US4972446 Voltage controlled oscillator using dual modulus divider
11/20/1990US4972444 Digital phase-locked device and method
11/20/1990US4972442 Phase-locked loop clock
11/20/1990US4972163 Regenerating device having a phase-locked loop with loop gain compensation and offset compensation
11/20/1990US4972160 Phase-lock loop circuit with improved output signal jitter performance
11/15/1990WO1990013948A1 Frequency synthesizer with dynamically programmable frequency range of selected loop bandwidth
11/15/1990WO1990013947A1 Current reduction of a synthesizer
11/14/1990CN1010453B Noise negative-feedback method
11/13/1990US4970609 Clocking method and apparatus for use with partial response coded binary data
11/13/1990US4970475 Linearized three state phase detector
11/13/1990US4970474 Analog/digital phase locked loop
11/13/1990US4970473 For tuning video frequencies
11/13/1990US4970472 Compensated phase locked loop circuit
11/06/1990US4969191 Fully digital phase-locked loop
11/06/1990US4968952 Voltage control oscillator with automatic current control
11/06/1990US4968951 Phase locked loop having circuit for recovering from oscillation stoppage
11/06/1990US4968950 PLL frequency synthesizer output control circuit
11/01/1990WO1990013121A1 Pll circuit for generating a beat signal in a recorder
10/1990
10/31/1990EP0395347A2 Sampling frequency reproduction system
10/31/1990EP0395109A1 Arrangement for automatic tuning of a voltage controlled oscillator of a PLL
10/31/1990EP0394358A1 Low voltage and low power frequency synthesizer
10/25/1990DE3912838A1 Pll-schaltung zum erzeugen eines taktsignals in einem recorder PLL circuit for generating a clock signal in one recorder
10/24/1990EP0393975A1 Digital frequency synthesizer
10/24/1990EP0393341A1 Method and arrangement for converting an interrupted read-in clock into an uninterrupted read-out clock
10/23/1990US4965815 Phase detection circuit for stepwise measurement of a phase relation
10/23/1990US4965533 Direct digital synthesizer driven phase lock loop frequency synthesizer
10/23/1990US4965532 Circuit for driving ultrasonic transducer
10/23/1990US4965531 Frequency synthesizers having dividing ratio controlled by sigma-delta modulator
10/18/1990WO1990012458A1 Frequency synthesisers with fractional division
10/18/1990WO1990012457A1 Frequency control apparatus and method for a digital radio receiver
10/17/1990EP0392569A2 Digital phase adjustment
10/17/1990EP0392056A1 Circuit for a clock signal
10/16/1990US4963839 Wide bandwidth phase locked loop circuit with sliding window averager
10/16/1990US4963838 Frequency synthesizer
10/16/1990US4963831 Self adjusting frequency demodulating integrated circuit
10/16/1990US4963817 Method and apparatus for detecting a phase difference between two digital signals
10/10/1990EP0391577A2 Sampling circuits
10/10/1990EP0391464A2 Hybrid phase locked loop
10/10/1990EP0391144A2 Synchronisation method of a timing device of a synchronised electrical system
10/10/1990EP0390800A1 Integratable phase-locked loop.
10/10/1990CN1046074A Frequency control apparatus and method for digital radio receiver
10/04/1990WO1990011643A1 Frequency synthesizer with fm modulation
10/03/1990EP0390250A1 Phase detectors
10/03/1990EP0389974A1 Frequency control apparatus and method for a digital radio receiver
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