| Patents for H03L 7 - Automatic control of frequency or phase; Synchronisation (37,643) |
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| 03/28/1989 | US4816722 Digital phase-locked loop filter |
| 03/22/1989 | EP0308285A1 Device comprising a phase-locked loop |
| 03/22/1989 | EP0307595A1 Circuit arrangement for generating two very near frequencies |
| 03/22/1989 | EP0307572A2 Multiple phase clock generator |
| 03/21/1989 | US4814879 Signal phase alignment circuitry |
| 03/21/1989 | US4814727 Wide-deviation tracking filter circuit |
| 03/21/1989 | US4814726 Digital phase comparator/charge pump with zero deadband and minimum offset |
| 03/21/1989 | US4814725 Phase lock circuit for compensation for bit frequency variations |
| 03/15/1989 | EP0306993A1 Burst/continuous wave converting apparatus for generating continuous wave in response to bursts |
| 03/15/1989 | EP0166749B1 Phase regulation circuit |
| 03/15/1989 | CN1031784A Controlled oscillator |
| 03/14/1989 | US4813005 Device for synchronizing the output pulses of a circuit with an input clock |
| 03/14/1989 | US4812783 Phase locked loop circuit with quickly recoverable stability |
| 03/09/1989 | WO1989002193A1 A controlled oscillator |
| 03/08/1989 | EP0306249A2 Frequency synthesizer |
| 03/08/1989 | CN1003552B Divide-by-fraction frequency divider circuit designed in manner of rate multiplier |
| 03/07/1989 | US4811424 Rapid phase correcting carrier recovery circuit |
| 03/07/1989 | US4811128 Digital signal recording and reproducing apparatus having rotary magnetic heads |
| 03/07/1989 | US4810977 Frequency modulation in phase-locked loops |
| 03/07/1989 | US4810974 Drift compensated digitally tuned voltage controlled oscillator |
| 03/07/1989 | US4810904 Sample-and-hold phase detector circuit |
| 03/01/1989 | EP0305187A2 A digital frequency synthesiser |
| 03/01/1989 | EP0304791A1 Phase-locked loop having elongated time for charge and discharge |
| 02/28/1989 | US4809355 Method for operating a transmitting/receiving circuit and an apparatus for implementing the method |
| 02/28/1989 | US4809068 Clock signal generating circuit for television receiver |
| 02/28/1989 | US4809004 Radar system |
| 02/28/1989 | US4808948 Automatic tuning system for ultrasonic generators |
| 02/28/1989 | US4808884 High order digital phase-locked loop system |
| 02/28/1989 | US4808856 Low voltage phase comparator |
| 02/22/1989 | CN1031306A Home unit for wireless digital telephone system |
| 02/22/1989 | CN1031304A Clock signal generation system |
| 02/21/1989 | US4806934 Tracking circuit for following objects through antenna nulls |
| 02/21/1989 | US4806883 Multifrequency oscillator circuit |
| 02/21/1989 | US4806881 Multi-channel modulated numerical frequency synthesizer |
| 02/21/1989 | US4806880 High speed integrator for data recovery and a costas phase-locked-loop circuit incorporating same |
| 02/21/1989 | US4806879 Method and apparatus for synchronizing to a pulse train packet signal |
| 02/21/1989 | US4806878 Phase comparator lock detect circuit and a synthesizer using same |
| 02/15/1989 | EP0303494A2 Clock signal generation system |
| 02/14/1989 | US4805198 Clock multiplier/jitter attenuator |
| 02/14/1989 | US4804964 Loran-C signal receiving apparatus |
| 02/14/1989 | US4804928 Phase-frequency compare circuit for phase lock loop |
| 02/09/1989 | WO1989001263A1 Variable frequency system having linear combination of charge pump and voltage controlled oscillator |
| 02/08/1989 | EP0302562A1 Frequency synthesizer having a tuning indicator device |
| 02/08/1989 | EP0302290A2 Automatic frequency control system |
| 02/08/1989 | CN1003270B Wide band frequency guiding and capturing method and device |
| 02/07/1989 | US4803705 Analog phase locked loop |
| 02/07/1989 | US4803680 Destuffing circuit with a digital phase-locked loop |
| 02/07/1989 | US4803407 Digital horizontal-deflection circuit |
| 02/07/1989 | US4803385 Phase detecting circuit |
| 01/31/1989 | US4802009 Digitally controlled phase locked loop system |
| 01/31/1989 | US4801896 Circuit providing improved lock-in for a phase-locked loop |
| 01/31/1989 | US4801895 Circuit for regulating a voltage controlled oscillator |
| 01/31/1989 | US4801894 Frequency detector for frequency locked loop |
| 01/24/1989 | US4800577 GPS receiver |
| 01/24/1989 | US4800342 Frequency synthesizer of the fractional type |
| 01/24/1989 | US4800341 Fast switching frequency synthesizer |
| 01/18/1989 | EP0299724A2 Digitally controlled phase locked loop system |
| 01/18/1989 | EP0299675A2 Improvements in or relating to phase locked loop circuits |
| 01/18/1989 | EP0299674A2 Improvements in or relating to frequency synthesisers |
| 01/17/1989 | US4799240 Clock synchronizing circuit including a voltage controlled oscillator |
| 01/17/1989 | US4799030 Voltage controlled oscillator clamp circuit |
| 01/11/1989 | EP0298581A2 Phase comparator insensitive to clock asymmetry |
| 01/11/1989 | CN1030335A Deflection synchronizing apparatus |
| 01/10/1989 | US4797845 Phase-locked loop coefficient generator for a filter arrangement having a non-rational ratio between input and output sampling frequencies |
| 01/10/1989 | US4797637 PLL frequency synthesizer |
| 01/10/1989 | US4797635 Tracking loop having nonlinear amplitude filter |
| 01/10/1989 | US4797634 Controlled oscillator |
| 01/04/1989 | EP0297847A1 Television synchronising apparatus |
| 01/04/1989 | EP0297774A2 Phase controlled demodulator for digital communications system |
| 01/04/1989 | EP0297719A2 Device for synchronizing the output pulses of a circuit with an input clock |
| 01/04/1989 | EP0297272A2 Frequency synthesizer |
| 01/03/1989 | US4796102 Automatic frequency control system |
| 01/03/1989 | US4795985 Digital phase lock loop |
| 01/03/1989 | CA1248221A1 Digital data recovery circuit |
| 12/29/1988 | WO1988010534A1 A device for use at active filters and use thereof |
| 12/29/1988 | DE3813865A1 Active 360@ phase shifter having continuously adjustable phase |
| 12/28/1988 | EP0296311A2 Device for the generation of at least two different frequencies |
| 12/28/1988 | CN88103537A Phase detector |
| 12/28/1988 | CN86201525U Sine-wave oscillator curcuit for tracing main power frequency |
| 12/27/1988 | US4794623 Recovery of carrier signal from QAM double sideband suppressed carrier IF signal for use in synchronous demodulation |
| 12/27/1988 | US4794275 Multiple phase clock generator |
| 12/21/1988 | EP0296131A1 Device for use at active filters and use thereof |
| 12/21/1988 | EP0295515A1 Signal generating apparatus |
| 12/20/1988 | US4792914 High frequency digital synthesizer with aperiodic correction optimizing the spectral purity |
| 12/20/1988 | US4792768 Fast frequency settling signal generator utilizing a frequency locked-loop |
| 12/20/1988 | US4792767 Phase and frequency detector and use of this detector in a phase-lock loop |
| 12/20/1988 | US4792705 Fast switching charge pump |
| 12/20/1988 | CA1247202A1 Phase detector and pll-circuit comprising such phase detector |
| 12/15/1988 | WO1988009938A1 Method and apparatus for processing synthetic aperture aerial signals |
| 12/14/1988 | EP0295120A2 A phase detector |
| 12/13/1988 | US4791488 Line-locked clock signal generation system |
| 12/13/1988 | US4791387 Microwave band frequency synthesizer |
| 12/13/1988 | US4791386 Digital phase-locked loop with random walk filter |
| 12/13/1988 | US4791378 Phase-locked loops |
| 12/13/1988 | CA1246724A1 Global positioning system course acquisition code receiver |
| 12/08/1988 | DE3725732C1 PLL with variable oscillator - has control circuit with filter using low cut=off amplifier to attenuate phase noise |
| 12/06/1988 | US4789887 Monolithic circuit |
| 12/06/1988 | CA1246156A1 Multiphase frequency selective phase locked loop with multiphase sinusoidal and digital outputs |
| 11/30/1988 | EP0292935A2 Phase comparator |
| 11/29/1988 | US4788547 Static-split tracking radar systems |