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)
06/1993
06/15/1993CA1319179C Cesium oscillator
06/09/1993EP0545517A1 Gate multiplexed low noise charge pump
06/09/1993EP0545245A2 Digital oscillator
06/09/1993EP0545232A1 Low noise fine frequency step synthesizer
06/09/1993EP0521859A4 Direct digital synthesizer driven phase lock loop frequency synthesizer with hard limiter
06/08/1993US5218324 Device for the control of a phase-locked loop with frequency changing
06/08/1993US5218314 High resolution, multi-frequency digital phase-locked loop
06/08/1993US5218313 Frequency synthesizer for implementing generator of highly pure signals and circuit devices, such as VCO, PLL and SG used therein
06/02/1993EP0544550A1 Synthesiser with an auxiliary loop for providing reference frequency
06/02/1993EP0544500A1 Frequency stabilizing circuit used for a pulse modulator for an image signal including a synchronous signal
06/02/1993EP0544358A1 Phase locked loop with frequency deviation detector and decoder circuit comprising such a phase locked loop
06/02/1993EP0544355A1 Digital phase lock loop
06/02/1993EP0544245A1 Clock recovery circuit for a video signal
06/02/1993EP0544109A1 Phase detector circuit and PLL circuit equipped therewith
06/01/1993US5216698 Automatic device for the phase-locking of a circuit
06/01/1993US5216554 Digital phase error estimator
06/01/1993US5216389 Temperature compensation of a crystal reference using direct digital synthesis
06/01/1993US5216387 Noise reduction method and apparatus for phase-locked loops
06/01/1993US5216374 Frequency synthesizer utilizing pulse-width modulation of digital VCO control signal
06/01/1993US5216302 Reference delay generator and electronic device using the same
05/1993
05/30/1993CA2084047A1 Frequency synthesizer
05/26/1993EP0543028A1 Method of generating a stable frequency signal for a power-supply-apparatus and a synchronising and receiver device for it
05/26/1993CN1021007C Phase synchronising circuit of picture signal receiving device and method of same
05/25/1993US5214677 Phase-locked loop with sync detector
05/25/1993US5214395 Parasitic signal suppression circuit for an extremely high frequency oscillator
05/25/1993CA1318360C Apparatus for cancelling carrier phase jitters
05/19/1993EP0542400A1 High frequency VCO circuit
05/18/1993US5212817 Ultra high speed scan system
05/18/1993US5212716 Data edge phase sorting circuits
05/18/1993US5212601 Disk drive data synchronizer with window shift synthesis
05/18/1993US5212484 Digital to analog converter system employing plural digital to analog converters which is insensitive to resistance variations
05/13/1993DE4212778C1 Atomic frequency standard with resonance cell within cavity resonator - uses phase detector to control FM microwave oscillator exciting cell, laser diode as pump light source and photocell to intercept laser beam passing through cell
05/12/1993EP0541408A1 Method and device for controlling the mode of functioning of a digital phase lock loop
05/12/1993EP0541301A1 Matching the clock phase of duplicated clock circuits
05/12/1993EP0540906A1 Phase-sensitive rectifying device with integrating effect
05/11/1993US5210509 Dual loop phase locked circuit with sweep generator and compensation for drift
05/11/1993CA1317671C Phase discrimination and data separation method and apparatus
05/11/1993CA1317670C2 Television synchronizing arrangement
05/05/1993EP0540119A2 Monolithic digital phaselock loop circuit
05/05/1993EP0540052A1 Ripple-free phase detector using two sample-and-hold circuits
05/05/1993EP0539403A1 Fractional-n synthesizer having modulation spur compensation.
05/05/1993CN1020517C Phase discrimination and data separation method and apparatus
05/04/1993US5208833 Multi-level symbol synchronizer
05/04/1993US5208598 Digital pulse generator using leading and trailing edge placement
05/04/1993US5208555 Circuit for limiting maximum frequency output of a voltage controlled oscillator
05/04/1993US5208546 Adaptive charge pump for phase-locked loops
05/04/1993US5207491 Fast-switching frequency synthesizer
04/1993
04/29/1993WO1993008645A1 Frequency converter, multistage frequency converter, and frequency synthesizer using them
04/28/1993EP0538903A1 Frequency synthesis using frequency controlled carrier modulated with PLL feedback signal
04/28/1993EP0538867A2 Decision-directed digital phase locked loop
04/27/1993US5206889 Timing interpolator
04/27/1993US5206857 Apparatus and method for timing distribution over an asynchronous ring
04/27/1993US5206769 Method for controlling a plurality of phase-lock loops from a common frequency control
04/27/1993US5205294 Apparatus and methodology for digital telemetry of biomedical signals
04/21/1993EP0302100B1 Improved phase lock loop
04/20/1993US5204634 Phase-locked loop demodulator having loop filter controlled by lock detector
04/20/1993US5204589 Data signal controlled oscillator for a video display
04/20/1993US5204552 Voltage controlled oscillator and an operating method thereof
04/14/1993EP0536835A1 Microwave oscillators and transmitters with frequency stabilization
04/14/1993EP0536661A1 Data slicing circuit
04/14/1993EP0536660A1 Process for broadening the frequency response band of a voltage-controlled crystal oscillator and associated circuit
04/13/1993US5203030 Satellite transmission capturing method for gps receiver
04/13/1993US5202906 Frequency divider which has a variable length first cycle by changing a division ratio after the first cycle and a frequency synthesizer using same
04/07/1993EP0536042A1 Phase lock detection device for a digital PLL
04/07/1993EP0536027A1 Method and device for cancelling the phase error of the phase difference between the input and output signals of a phase locked loop
04/07/1993EP0535945A2 Digital oscillator and color subcarrier demodulation circuit
04/07/1993EP0535883A1 Voltage controlled oscillator employing negative resistance
04/07/1993EP0535880A2 Carrier recovery for QPSK
04/07/1993EP0535591A2 Phase-locked circuit capable of being quickly put in a phase locked state
04/07/1993EP0535397A2 Circuit arrangement for synchronising a voltage-controlled oscillator
04/06/1993US5200712 Variable speed phase locked loop
04/01/1993WO1993006660A1 Method and apparatus for perturbation cancellation of a phase locked oscillator
04/01/1993WO1993006659A1 Phase locked loop having constant gain for recovering clock from non-uniformly spaced data
04/01/1993WO1993006656A1 Charge-pump phase locked loop circuit
03/1993
03/31/1993EP0534490A1 Phase lock loop for sector servo system
03/31/1993CN1070522A Noise reduction method and apparatus for phase-locked loops
03/30/1993CA1315363C Frequency synthesizer with spur compensation
03/30/1993CA1315358C Process and circuit arrangement for digital control of the phase of scanning clock pulses
03/23/1993US5196804 For producing an output signal
03/18/1993WO1993005578A1 Frequency synthesizer
03/17/1993EP0531757A1 Method for controlling a frequency synthesizer provided with a modulation input
03/17/1993EP0531451A1 Phase locked loop with d.c. modulation
03/16/1993US5194831 Fully-differential relaxation-type voltage controlled oscillator and method therefor
03/16/1993US5194829 Radio set with easily selected oscillator frequency
03/16/1993US5194828 Double PLL device
03/10/1993EP0530775A2 Phase locked loop synchronization system for use in data communications
03/10/1993EP0530749A1 Method and apparatus for synchronising a clock-circuit of a switching communication system
03/10/1993EP0530393A1 Method and apparatus for synchronising a clockcircuit of a switching communication system
03/09/1993US5193103 Digital phase locked loop circuit
03/09/1993US5192921 Miniaturized atomic frequency standard
03/09/1993US5192916 Charge-pump phase locked loop circuit
03/09/1993US5192915 Edge integrating phase detector
03/03/1993EP0529874A1 Vector locked loop
03/03/1993EP0529618A1 Demodulating device
03/03/1993CN1069612A Clock signal generator for digital television reveiver
03/02/1993US5191301 Integrated differential voltage controlled ring oscillator
03/02/1993US5191295 Phase shift vernier for automatic test systems
03/02/1993US5191239 Reset gate for a phase detector in a phase-locked loop
02/1993
02/24/1993EP0528651A2 Adaptive charge pump for phase-locked loops
02/24/1993EP0528283A2 Semiconductor integrated circuit having clock signal generator
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