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)
07/1989
07/18/1989CA1257661A1 Clock phase discriminator
07/13/1989WO1989006456A1 Low voltage and low power frequency synthesizer
07/11/1989US4847874 Clock recovery system for digital data
07/11/1989US4847870 High resolution digital phase-lock loop circuit
07/11/1989US4847569 Automatic calibration system for a voltage control oscillator
07/11/1989US4847519 Integrated, high speed, zero hold current and delay compensated charge pump
07/11/1989US4847516 System for feeding clock signals
07/11/1989CA1257381A1 Phase locked loop system
07/11/1989CA1257337A1 Frequency synthesizer for broadcast telephone system having multiple assignable frequency channels
07/05/1989EP0322782A2 Circuit for detecting a synchronizing signal
07/05/1989EP0322743A2 Signal generator
07/04/1989US4845692 Clocking device of substantially constant stability for short-term and long-term time measurement
07/04/1989US4845685 Digital phase-locked loop
07/04/1989US4845443 Low noise multi-band channelized microwave frequency synthesizer
07/04/1989US4845438 Phase comparison circuit
06/1989
06/28/1989EP0321806A1 Frequency discriminator for a digital phase-locked loop
06/28/1989EP0321725A2 Method for determining the control voltage of a voltage-controlled oscillator in a phase-locked loop
06/28/1989CN2040283U Subsignal frequency microwave voltage-controlled oscillator
06/27/1989US4843617 Apparatus and method for synchronizing a communication system
06/27/1989US4843469 Rapid signal acquisition and phase averaged horizontal timing from composite sync
06/27/1989US4843347 Passive stabilizer for a signal generating source
06/21/1989EP0320748A2 Self adjusting phase lock circuit
06/21/1989CN2039887U Digital direct frequency synthesizer
06/20/1989US4841545 Synchronous tracking device for direct spread spectrum receiver
06/20/1989US4841257 High-speed sampling phase detector for clock and data recovery system
06/20/1989US4841256 Piezoelectric phase locked loop circuit
06/20/1989US4841255 Frequency synthesizer
06/20/1989US4841167 Clock recovering device
06/14/1989EP0319851A1 Digital phase control for digitally generated signals
06/14/1989CN1033433A Servo device for rapidly , and with low noise, locking the frequency and phase of a signal to that of an imposed signal
06/13/1989US4839613 Temperature compensation for a disciplined frequency standard
06/13/1989US4839603 Multiple-loop microwave frequency synthesizer using two phase lockloops
06/07/1989EP0319415A1 Quick low noise locking device of the frequency and phase of a signal with reference to a set signal
06/07/1989EP0318930A2 Voltage controlled oscillator
06/07/1989CN1033322A Integrated poly-phase power meter
06/06/1989US4837781 Phase locked loop clock synchronizer and signal detector
06/06/1989US4837516 Tuning device for nuclear magnetic resonance imaging apparatus and nuclear magnetic resonance imaging apparatus including the tuning device
06/06/1989US4837464 Phase regulation circuit, particularly for horizontal phase regulation in data displays
06/01/1989WO1989005065A1 Digital phase locked loop with bounded jitter
06/01/1989WO1989005064A1 High-speed follow-up pll device
06/01/1989WO1989005063A1 Integratable phase-locked loop
06/01/1989WO1989004974A1 Crystal controlled magnetron
05/1989
05/31/1989EP0318155A1 Forcing synchronisation on two pulse trains
05/31/1989EP0318114A2 Frequency synthesizer
05/31/1989EP0317821A2 High resolution digital phase-lock loop circuit
05/30/1989US4835622 Demodulator arrangement
05/30/1989US4835610 Arrangement for automatic switching of the regulating speed of a phase regulating circuit
05/30/1989US4835491 Clock signal generation
05/30/1989US4835481 Circuit arrangement for generating a clock signal which is synchronous in respect of frequency to a reference frequency
05/24/1989EP0317159A2 Clock recovery arrangement
05/24/1989EP0317051A2 Digital first order hold circuit for a waveform synthesizer and method therefor
05/24/1989EP0316878A2 PLL circuit for generating output signal synchronized with input signal by switching frequency dividing ratio
05/24/1989EP0316607A1 Monolithic integrated phase shifter and VCO
05/24/1989EP0316543A2 Frequency synthesizer having digital phase detector with optimal steering and level-type lock indication
05/24/1989EP0316340A1 Data input circuit with digital phase locked loop.
05/23/1989US4833543 Image processing system and phaselocked loop used therein
05/23/1989US4833425 Analog macro embedded in a digital gate array
05/17/1989EP0315940A2 Apparatus and method for phase noise and post tuning drift cancellation
05/16/1989US4831339 Oscillator having low phase noise
05/16/1989US4831338 Synchronizing clock signal generator
05/16/1989US4831319 Method for the phase synchronization of step-drive controlled equipment
05/16/1989CA1254271A1 Synchronization detection circuit
05/16/1989CA1254270A1 Phase-locked loop
05/10/1989EP0315489A2 Fast frequency settling signal generator utilizing a frequency locked-loop
05/09/1989US4829544 Bit synchronization circuit
05/09/1989US4829391 High speed integrated charge pump circuit for phase lock loops
05/09/1989US4829301 Digital first order hold circuit
05/09/1989US4829268 Loop filter for frequency multiplying phase locked loop
05/09/1989US4829258 Stabilized phase locked loop
05/02/1989US4827225 Fast locking phase-locked loop utilizing frequency estimation
04/1989
04/26/1989EP0313206A2 Frequency detector for frequency locked loop
04/26/1989EP0313129A2 Phase-locked loop with a voltage-controlled oscillator
04/26/1989EP0313019A2 Phase signal filtering apparatus utilizing estimated phase signal
04/25/1989US4825448 Subscriber unit for wireless digital telephone system
04/19/1989EP0312141A1 Oscillator circuit comprising a phase control loop
04/19/1989EP0311973A2 Quotient phase-shift processor for digital phase-licked-loops
04/19/1989EP0311679A1 A low jitter phase-locked loop
04/19/1989CN1032474A Circuit for recovering carrier in digital transmission systems
04/12/1989EP0311505A1 Panoramic receiver for radio signal surveillance
04/12/1989EP0310783A2 Stabilisation method of the output frequency of a voltage-controlled oscillator, and oscillator and sensor device functioning in accordance with this method
04/11/1989US4821297 Digital phase locked loop clock recovery scheme
04/11/1989US4821293 Digital phase locked loop circuit
04/11/1989US4820994 Phase regulating circuit
04/11/1989US4820993 Digital phase lock loop
04/05/1989EP0310088A2 Digital phase-locked loop system
04/05/1989CN1003834B Directly mixing synchronous am-receiver
04/04/1989US4819251 High speed non-return-to-zero digital clock recovery apparatus
04/04/1989US4819196 Digital-based phase control system
04/04/1989US4819081 Phase comparator for extending capture range
04/04/1989US4818950 Low jitter phase-locked loop
04/04/1989US4818903 Time constant automatic adjustment circuit for a filter circuit
03/1989
03/29/1989EP0309332A1 Quartz oszillator circuit, frequency-locked by a thermal effect
03/29/1989EP0309150A2 Data reproducing apparatus
03/29/1989EP0309038A1 Carrier regeneration circuit for digital transmission systems
03/29/1989EP0308709A1 Frequency demodulator according to the PLL technique
03/28/1989US4817199 Phase locked loop having reduced response time
03/28/1989US4816776 Integrated circuit configuration and method for monitoring a co-integrated oscillator
03/28/1989US4816775 Negative feedback, phase rotation, phase acquisition and tracking apparatus and method
03/28/1989US4816774 Frequency synthesizer with spur compensation
03/28/1989US4816771 Amplifier arrangement for an adaptive reduction of an unwanted d.c. offset in an input signal and an AM receiver using same
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