Patents for H03L 7 - Automatic control of frequency or phase; Synchronisation (37,643)
11/1988
11/29/1988US4788512 Gain maintenance apparatus for use with a high gain amplifier incorporated in a closed loop feedback system
11/22/1988US4787097 NRZ phase-locked loop circuit with associated monitor and recovery circuitry
11/22/1988CA1245309A2 Low pass filter circuit
11/22/1988CA1245306A1 Real time network receiver system fast settling amplifier
11/17/1988EP0291240A2 Semiconductor integrated circuit with reduced power consumption
11/17/1988EP0290851A2 Synchronizing clock signal generator
11/17/1988EP0290838A1 Circuit arrangement for automatically switching the control speed of a phase-locked loop
11/15/1988US4785260 Frequency synthesizer for broadcast telephone system having multiple assignable frequency channels
11/09/1988EP0289941A2 A phase locked loop having fast frequency lock steering circuit
11/09/1988CN88219577U Ultralow frequency signal generator
11/03/1988WO1988008644A1 A low jitter phase-locked loop
11/02/1988EP0289385A1 Reference time device with a constant stability for measuring long and short time intervals
11/01/1988US4782246 Phase shift circuit for electrical signal
10/1988
10/26/1988EP0288401A1 Generator for multiple reference frequencies
10/26/1988EP0288232A2 Tracking apparatus
10/26/1988EP0288007A2 Signal generating apparatus using PLL circuit
10/26/1988EP0287776A2 Phase-locked data detector
10/25/1988US4780895 Circuit for stabilizing the rate at which pulses appear
10/25/1988US4780891 Method and device for synchronizing sychronous digital bit streams
10/25/1988US4780844 Data input circuit with digital phase locked loop
10/25/1988US4780759 Sampling clock generation circuit of video signal
10/25/1988US4780691 Dielectric resonator frequency discriminator for stabilizing oscillator frequency
10/25/1988US4780681 Digital phase locked loop using fixed frequency oscillator and simulated time-shifting
10/20/1988WO1988008230A1 Phase synchronizing system
10/19/1988EP0287311A2 Duty cycle independent phase detector
10/19/1988EP0286879A1 Integrated-circuit arrangement for controlling an integrated oscillator
10/18/1988US4779063 Oscillator with feedback loop including delay circuit
10/12/1988EP0286329A2 Phase locked loop clock synchroniser and signal detector
10/11/1988US4777655 Control signal receiving system
10/05/1988EP0285326A2 Low noise magnetically tuned resonant circuit
10/04/1988US4775890 Phase detector
10/04/1988CA1242765A1 Arrangement for combining the output signals from a plurality of transmitters tuned to the same frequency
09/1988
09/28/1988EP0284193A2 Oscillator
09/28/1988CN88102334A Integral electrical consuming monitor
09/28/1988CN87101494A Direct hybrid synchrodyne receiver
09/27/1988US4774577 Analog-to-digital conversion apparatus for video signal
09/27/1988US4774518 Loran-C signal phase tracking apparatus
09/27/1988US4774480 Phase-locked loop having separate smoothing and loop filters
09/27/1988US4774479 Phase locked loop circuit
09/22/1988DE3708538A1 Oscillator circuit
09/20/1988US4773085 Phase and frequency detector circuits
09/20/1988US4772860 Phase-control loop
09/20/1988US4772852 Phase-frequency comparator for phase-locked loops
09/14/1988EP0282242A2 A phase synchronizing circuit for a time axis shift correcting circuit
09/14/1988EP0282098A2 Synchronization signal generator without oscillator
09/13/1988US4771250 Digital phase-lock loop having an estimator and predictor of error
09/13/1988US4771249 Phase locked loop having a filter with controlled variable bandwidth
09/13/1988US4771248 Fast phase-lock frequency synthesizer
09/13/1988US4771231 Microwave oscillator with optical readout of resonance phenomena
09/07/1988EP0280809A1 Burst locked oscillator with side-lock protection
09/06/1988US4769705 Television apparatus
09/06/1988US4769691 Burst locked oscillator with side-lock protection
08/1988
08/25/1988WO1988006383A1 Improved phase lock loop
08/23/1988US4766397 Phase detector and phase-locked loop apparatus
08/17/1988EP0278140A1 Clock signal generation
08/17/1988EP0278079A2 NRZ Phase-locked loop circuit with associated monitor and recovery circuitry
08/16/1988US4764737 Frequency synthesizer having digital phase detector with optimal steering and level-type lock indication
08/10/1988EP0277726A2 Phase-locked loops
08/10/1988EP0277204A1 Microwave diode oscillator.
08/09/1988US4763342 Digital phase-locked loop circuits with storage of clock error signal
08/09/1988US4763083 Low phase noise RF synthesizer
08/03/1988EP0276907A2 Circuit for regulating a voltage controlled oscillator
07/1988
07/27/1988EP0275645A2 Clock control system and method for a parallel variable speed constant frequency power system
07/26/1988US4760280 Process and apparatus for the synchronization of square signals
07/20/1988EP0274958A1 Device for compensating the Doppler effect produced by the relative motion between receiver and transmitter, tuned at the same frequency, in a radioreceiver
07/20/1988EP0274606A2 Arrangement for creating an integrated CMOS ciruit technique delay network and a phase comparator section
07/20/1988EP0274591A1 Phase lock circuit
07/19/1988US4758879 Circuit arrangement for controlling an oscillator in a colour television receiver or a video recording and/or reproducing apparatus having a phase alternating subcarrier.
07/19/1988US4758802 Fractional N synthesizer
07/19/1988US4758801 Dynamic control system with switchable filter-function groups
07/19/1988US4758800 Low noise magnetically tuned resonant circuit
07/12/1988US4757279 Method and apparatus for assisting a phase lock loop in obtaining acquisition
07/06/1988EP0273203A1 Frequency synthesizer
07/06/1988EP0273031A1 Characterized fast tuning control for a television system.
07/05/1988US4755774 Two-port synthesizer modulation system employing an improved reference phase modulator
07/05/1988US4755762 Combined FPLL and PSK data detector
07/05/1988CA1238954A1 Frequency comparator circuits
07/05/1988CA1238952A1 Demodulation circuit
06/1988
06/29/1988EP0272938A2 Frequency synthesizer
06/28/1988US4754465 Global positioning system course acquisition code receiver
06/28/1988US4754407 Digital phase synchronizer
06/28/1988US4754265 Phase shifter with slow transition detector
06/28/1988US4754235 Frequency synthesizer with low power consumption
06/28/1988US4754227 Recirculating broadband loop with tunable bandpass filter
06/28/1988US4754225 Phase comparator insensitive to clock asymmetry
06/28/1988US4754174 Circuit arrangement for deriving a control signal
06/21/1988US4752837 Data synchronizer for use with a variable rate input source
06/21/1988US4752749 Fast response tuner
06/21/1988US4752748 Intelligent phase-locked loop
06/21/1988CA1238409A1 Apparatus for controlling the frequency of a voltage controlled oscillator
06/15/1988EP0271121A1 Directly mixing synchronous receiver
06/14/1988US4751565 Microprocessor controlled digital genlock
06/14/1988US4751469 Phase coincidence detector
06/14/1988US4751468 Tracking sample and hold phase detector
06/09/1988DE3738310A1 Vorspannschaltung zum erzeugen praeziser stroeme in einer integrierten schaltung Bias circuit to generate a more specific currents in an integrated circuit
06/07/1988US4750193 Phase-locked data detector
06/07/1988US4749962 Clock-signal regenerator comprising a crystal oscillator incorporated in a phase-locked loop
06/07/1988US4749961 Voltage controlled oscillator and phase-locked loop using it
06/07/1988US4749960 Long phase-locked carrier recovery loop
06/01/1988EP0269193A1 Phase locked ocillator circuit