Patents for H03L 7 - Automatic control of frequency or phase; Synchronisation (37,643)
05/1988
05/31/1988US4748425 VCO range shift and modulation device
05/31/1988US4748424 Magnetron with frequency control means
05/24/1988US4746878 C. W. laser wavemeter/frequency locking technique
05/24/1988US4746870 Wide range frequency synthesizer with reduced jitter
05/18/1988EP0267422A1 Method and device for assisting at phase-locked loop acquisition
05/18/1988CN87106626A Circuitary arrangement for generating beat signal synchronizing with reference frequency
05/17/1988US4745373 Method and structure for synthesizing 2C Hz from A 2A.5B Hz oscillator
05/17/1988US4745372 Phase-locked-loop circuit having a charge pump
05/17/1988US4745371 Phase-locked digital synthesizer
05/17/1988CA1236915A1 Demodulation of television signals
05/11/1988EP0266832A1 Fully digital phase-locked loop
05/11/1988EP0266588A1 Phase-locked loop
05/10/1988US4743912 Method of and apparatus for reducing cycle slippage errors in Loran-C and similar radio-frequency signal reception, particularly in vehicles undergoing acceleration
05/10/1988US4743864 Power saving intermittently operated phase locked loop
05/10/1988US4743857 Digital/analog phase-locked oscillator
05/10/1988EP0168426A4 Multiple frequency digital phase locked loop.
05/10/1988CA1236534A1 Vco centering circuit
05/04/1988EP0266185A2 Start-stop oscillator having fixed starting phase and minimized quiescent power dissipation
05/04/1988EP0266147A2 A phase-lock-loop circuit for a television apparatus
05/04/1988EP0265666A2 Integrated high gain voltage controlled oscillator
05/03/1988US4742566 AM receiver
05/03/1988US4742313 Phase-locked loop circuit having a mechanism for preventing erroneous operation
04/1988
04/27/1988CN86106676A Method for obtaining synchronous amplitude-constant cosine and sine signal for reference
04/26/1988US4740761 Fine tuning of atomic frequency standards
04/26/1988EP0162870A4 Synthesized clock microcomputer with power saving.
04/26/1988CA1235800A1 Write clock pulse generator used for a time base corrector
04/21/1988DE3733554A1 Pll-verzoegerungsschaltung Pll verzoegerungsschaltung
04/21/1988DE3635429A1 Phase-locked loop
04/20/1988EP0264035A2 Phase comparator, especially for a phase-locked loop
04/19/1988US4739284 Phase locked loop having fast frequency lock steering circuit
04/19/1988US4739278 Digital phase-frequency discriminator comprising simplified reset means and associated method
04/14/1988DE3634594A1 Circuit arrangement for generating frequency ratios with rational numbers
04/12/1988US4737971 Synchronization detection circuit
04/12/1988US4737737 Transmission injection-locked dielectric resonator oscillator
04/12/1988US4737722 Serial port synchronizer
04/06/1988EP0262481A2 Circuit arrangement for the generation of a clock signal synchronised with an applied reference frequency
04/05/1988US4736167 PLL frequency synthesizer
03/1988
03/31/1988DE3632712A1 Circuit arrangement for controlling the control voltage for a clock generator constructed as voltage-controlled oscillator
03/30/1988EP0261428A2 Clock recovering device
03/29/1988US4734630 Method and apparatus for phase comparison adapted to produce an error signal against an input signal having a relatively wide range of phase and frequency variation
03/29/1988CA1234604A1 Electronic circuit capable of stably keeping a frequency during presence of a burst
03/24/1988WO1988002196A1 Quadrature signals generator
03/22/1988US4733404 Apparatus and method for signal processing
03/22/1988US4733197 Extended range phaselocked loop
03/09/1988EP0259074A2 Signal processing circuits
03/08/1988US4730169 Injection locking and tuning circuit for microwave diode oscillator
03/03/1988DE3629476A1 Circuit arrangement for controlling a crystal-controlled resonant circuit
03/02/1988EP0258042A2 Phase locked loop circuit with quickly recoverable stability
03/01/1988US4729024 Synchronizing pulse signal generation device
03/01/1988US4728906 Tuning and calibration circuits for CW and sweep frequency signal generators
02/1988
02/25/1988WO1988001451A1 Microwave diode oscillator
02/24/1988CN87103771A Amplifier arrangement
02/23/1988US4727339 Start-stop oscillator having fixed starting phase and minimized quiescent power dissipation
02/11/1988WO1988001113A1 Rapid frequency synthesizer apparatus and method
02/11/1988DE3626467A1 Circuit arrangement for a digital phase detector
02/09/1988US4724437 Signal acquisition circuit with variable bandwidth phase locked loop
02/09/1988US4724402 Phase-locked loop apparatus using an embedded oscillator as a lock detection means
02/09/1988US4724401 Adaptive oscillator apparatus for use in a phase-lock loop
02/04/1988DE3625270A1 Clock generator for a phase locked loop having two operating states
02/03/1988EP0254763A1 Digital horizontal-deflection circuit
01/1988
01/28/1988WO1988000733A1 Data input circuit with digital phase locked loop
01/27/1988EP0254339A1 Demodulator arrangement
01/26/1988US4721924 Device for tuning a VCO to the carrier frequency of each radar pulse
01/26/1988CA1232047A1 Phase detecting apparatus for use in synchronising systems
01/20/1988EP0253452A1 Phase-control loop
01/20/1988EP0253281A1 Process and device for the phase adjustment of digital synchronous data streams
01/20/1988EP0252943A1 Variable capacitance circuit.
01/19/1988US4720688 Frequency synthesizer
01/19/1988US4720687 Frequency locked loop with constant loop gain and frequency difference detector therefor
01/13/1988EP0252539A1 Crystal oscillator with a wide range of frequency pulling
01/13/1988EP0252444A2 Digital phase-locked loops
01/12/1988US4719581 Signal processing unit
01/07/1988EP0250683A1 Tracking sample and hold phase detector
01/07/1988DE3621035A1 Circuit arrangement for generating a synchronous column clock for forming various character widths in mosaic printing devices
01/06/1988CN85100144B Digital monopulse automatic frequency adjusting system with microwave phaseshift discriminator
01/05/1988US4718111 Arrangement for combining the output signals from a plurality of transmitters tuned to the same frequency
01/05/1988US4717891 Phase locked loop circuit having temperature compensated VCO control voltage
12/1987
12/29/1987US4716383 Precise phase start-up voltage controlled oscillator with accurate duty cycle
12/29/1987US4716375 Switched-capacitor multiplier circuit
12/23/1987EP0249929A1 Device for the stabilization of the appearance rhythm of pulses
12/22/1987US4715050 Digital phase-locked loop circuit
12/22/1987US4715001 Extremely accurate automatic frequency control circuit and method therefor
12/22/1987US4715000 Digital phase-locked loop and frequency measuring device
12/22/1987US4714900 Current output circuit having well-balanced output currents of opposite polarities
12/22/1987US4714899 Frequency synthesizer
12/17/1987WO1987007794A1 Characterized fast tuning control for a television system
12/16/1987EP0249060A2 Self-adjusting single-shot for phase-locked oscillator
12/16/1987EP0248871A1 Frequency synthesiser
12/16/1987CN87104062A Clock-signal regenerator comprising crystal oscillator incorporated in phase-locked loop
12/15/1987US4713690 Sampling clock phase correction circuit of video signal
12/15/1987US4713631 Varactor tuning circuit having plural selectable bias voltages
12/15/1987US4713630 BPSK Costas-type PLL circuit having false lock prevention
12/15/1987US4713621 Phase synchronization circuit
12/09/1987EP0248276A2 Frequency standard using hydrogen maser
12/08/1987US4712225 Phase quantizer apparatus
12/08/1987US4712224 Offset digitally controlled oscillator
12/08/1987US4712223 Linear all-digital phase locked loop
12/08/1987US4712222 Adaptive recursive phase offset tracking system
12/08/1987US4712077 Tristate phase-lock loop prevents false lock
12/08/1987US4712076 Circuit for phase locking a clock signal to a series of pulses