Patents for H03L 7 - Automatic control of frequency or phase; Synchronisation (37,643)
07/1994
07/12/1994US5329240 Apparatus for measuring clock pulse delay in one or more circuits
07/07/1994WO1994015401A2 Digitally controlled phase shifter
07/07/1994WO1994015400A1 A method of locking a signal phase adaptively to a reference signal phase and a phase lock adaptive to the frequency of the reference signal
07/07/1994WO1994015394A1 Low power electronic circuit comprising a resonant system and a function circuitry
07/07/1994DE4304121C1 Signal generator synchronisation method
07/06/1994EP0604478A1 Phase locked loop having constant gain for recovering clock from non-uniformly spaced data
07/05/1994US5327302 Data filter tuning for constant density recording applications
07/05/1994US5327105 Gas cell for a miniaturized atomic frequency standard
07/05/1994US5327103 Lock detection circuit for a phase lock loop
06/1994
06/29/1994EP0604043A1 Wide range digital frequency detector
06/23/1994WO1994014244A1 Pll synthesizer gain control compensator
06/23/1994WO1994014243A1 Frequency synthesizer for quick returning
06/23/1994CA2129450A1 Frequency synthesizer for quick returning
06/16/1994DE4241215A1 Supplying current to HF receiver from prim. or sec. cell battery - controlling PLL frequency processing circuit using control signal provided by squelch circuit
06/15/1994EP0601780A2 A digital programmable frequency generator
06/15/1994EP0601519A2 Frequency synthesiser
06/15/1994EP0593642A4 Multi-loop synthesizer
06/08/1994EP0600680A2 Harmonic lock detector
06/08/1994EP0600379A1 Frequency synthesizer
06/07/1994US5319798 Radio transceiver having PLL synthesizer
06/07/1994US5319681 Method and a device for synchronizing a signal
06/07/1994US5319680 Phase locked loop synchronization system for use in data communications
06/07/1994US5319675 Quadrature modulation circuit
06/07/1994US5319321 Digital PLL circuit
06/07/1994US5319320 Phase-locked loop having frequency and phase control current pumps
06/01/1994EP0599609A1 Frequency synthesizing apparatus for a communication system
06/01/1994EP0599505A1 Tunable resonance circuit for a voltage controlled oscillator
06/01/1994EP0599372A1 PLL with stable phase discriminator
06/01/1994EP0599015A1 Saw oscillator gain amplifier with auto phase shift
06/01/1994EP0527780B1 Scaler for synchronous digital clock
05/1994
05/31/1994US5317600 Coarse tuning of the channel frequency
05/31/1994US5317287 Low-gain, range programmable, temperature compensated voltage controlled ring oscillator
05/31/1994US5317285 Frequency synthesizer employing a continuously adaptive phase detector and method
05/31/1994US5317284 Wide band, low noise, fine step tuning, phase locked loop frequency synthesizer
05/31/1994US5317283 Method to reduce noise in PLL frequency synthesis
05/31/1994US5317202 Delay line loop for 1X on-chip clock generation with zero skew and 50% duty cycle
05/31/1994CA2108803A1 Frequency synthesizer
05/25/1994EP0598260A1 High frequency voltage controlled oscillator
05/25/1994EP0598259A1 Frequency range detector
05/25/1994EP0598258A1 Voltage controlled oscillator operating with digital controlled loads in a phase lock loop
05/24/1994US5315623 Dual mode phase-locked loop
05/24/1994US5315271 Process and device for synchronizing two digital pulse sequences S and RF of the same high frequency
05/24/1994US5315270 Phase-locked loop system with compensation for data-transition-dependent variations in loop gain
05/24/1994US5315269 Phase-locked loop
05/24/1994US5315186 Frequency and phase lock detector
05/24/1994US5315183 For high speed logic circuits
05/24/1994US5315181 Circuit for synchronous, glitch-free clock switching
05/24/1994CA2010724C Slip phase control pll
05/18/1994EP0597486A2 Circuit arrangement for generating a signal having a controllable stable frequency
05/18/1994EP0597372A2 Digital signal reproduction devices, integrated circuits for use therewith, and digital signal reproduction methods
05/17/1994US5313503 Programmable high speed digital phase locked loop
05/17/1994US5313499 Constant gain phase lock-loop
05/17/1994US5313173 Quadrature modulated phase-locked loop
05/11/1994EP0596657A2 Normalization of apparent propagation delay
05/11/1994EP0596656A2 Programmable clock skew adjustment circuit
05/11/1994EP0494984B1 Phase detector for phase-locked loop clock recovery system
05/11/1994DE4237332A1 Atom frequency standard with resonance cell in cavity resonator - is operated with sufficiently strong magnetic field with hyper-fine structure of clock transition
05/10/1994US5311560 Frequency synthesizer
05/10/1994US5311178 Method for processing sample values in an RLL channel
05/10/1994US5311152 Phase locked loop with D.C. modulation
05/10/1994US5311149 Integrated phase locked loop local oscillator
05/10/1994US5311071 High speed threshold crossing detector with reset
05/04/1994EP0595787A2 Phase-locked loop circuit
05/04/1994EP0595632A2 Phase synchronization circuits
05/04/1994EP0595377A1 Frequency synthesis system for generating microwave oscillations
05/04/1994EP0595330A2 Charge pump circuit
05/04/1994EP0595013A2 Digital frequency synthesizer
05/04/1994EP0594970A1 Phase lock detection in a phase lock loop
05/03/1994US5309293 Magnetic recording/reproducing apparatus
04/1994
04/27/1994EP0593642A1 Multi-loop synthesizer
04/26/1994US5307382 Lock apparatus for dual phase locked loop
04/26/1994US5307071 Low noise frequency synthesizer using half integer dividers and analog gain compensation
04/26/1994US5307028 Phase-and-frequency mode/phase mode detector with the same gain in both modes
04/26/1994US5307020 Phase comparator device with wide dynamic range
04/20/1994EP0593015A1 Carrier phase lock detector for PSK satellite systems
04/20/1994EP0592978A2 Frequency stabilizer for use in phase-shift keying radio communications system
04/19/1994US5305362 Spur reduction for multiple modulator based synthesis
04/19/1994US5304958 Saw oscillator gain amplifier with auto phase shift
04/19/1994US5304957 Low jitter phase locked loop for single phase applications
04/19/1994US5304956 Low noise high speed frequency synthesizer employing a learning sequence
04/19/1994US5304955 Voltage controlled oscillator operating with digital controlled loads in a phase lock loop
04/19/1994US5304954 PLL synthesizer having frequency dividers with reset control
04/19/1994US5304953 Lock recovery circuit for a phase locked loop
04/19/1994US5304952 Lock sensor circuit and method for phase lock loop circuits
04/19/1994US5304951 Divider synchronization circuit for phase-locked loop frequency synthesizer
04/14/1994WO1994008394A1 Timing recovery circuit for synchronous waveform sampling
04/14/1994WO1994008285A1 Method of and apparatus for startup of a digital computer system clock
04/13/1994EP0592260A1 Counting circuit for frequency division and synthetizer using such a circuit
04/12/1994US5302920 Controllable multi-phase ring oscillators with variable current sources and capacitances
04/12/1994US5302919 VCO having voltage-to-current converter and PLL using same
04/12/1994US5302918 Subharmonic optically injection locked oscillator
04/12/1994US5302916 Wide range digital frequency detector
04/12/1994US5302908 High precision phase comparator and phase locked loop
04/12/1994CA1328493C Phase detector with variable gain amplifier
04/12/1994CA1328492C Signal generator utilizing a combined phase locked and frequency locked loop
04/06/1994EP0590607A1 Low-power baud rate generator
04/06/1994EP0590363A1 PLL circuit
04/06/1994EP0590323A1 Filter for adjusting the band width of a control loop
04/06/1994CN1085023A Microwave oscillator with improved phase noise characteristic
04/05/1994US5301366 High performance frequency tuning with low cost synthesizer