Patents for H03L 7 - Automatic control of frequency or phase; Synchronisation (37,643)
01/1987
01/13/1987US4637018 Automatic signal delay adjustment method
01/13/1987US4636748 Charge pump for use in a phase-locked loop
01/13/1987US4636747 System and method for wideband, continuous tuning of an oscillator
01/13/1987US4636746 Frequency lock system
01/13/1987US4636736 Variable phase signal demodulator
01/07/1987EP0207284A2 Process for the synchronization of square pulses
01/06/1987US4635280 Bit synchronizer for decoding data
01/06/1987US4635000 Temporal pixel clock synchronization system
01/06/1987US4634999 RF oscillator frequency stabilizing circuit using self-mixing with reference frequency
01/06/1987US4634998 Fast phase-lock frequency synthesizer with variable sampling efficiency
12/1986
12/30/1986US4633510 Electronic circuit capable of stably keeping a frequency during presence of a burst
12/30/1986US4633298 Digitally controlled phase locked loop system having coarse and fine locking modes
12/30/1986US4633194 Digital frequency divider suitable for a frequency synthesizer
12/30/1986US4633193 Clock circuit synchronizer using a frequency synthesizer controlled by a frequency estimator
12/30/1986US4633183 Constant resolution frequency synthesizer
12/30/1986EP0206816A2 Apparatus for increasing the switching speed of diodes
12/30/1986EP0206247A2 PLL frequency synthesizer
12/30/1986CA1216032A1 Variable digital frequency generator with value storage
12/23/1986US4631499 Phase-locked loop for a directly mixing synchronous AM-receiver
12/23/1986US4631498 CW Laser wavemeter/frequency locking technique
12/23/1986US4631497 Injection locked RF oscillator with control hoop
12/23/1986US4631496 Battery saving system for a frequency synthesizer
12/23/1986US4631487 Phase lock loop television signal demodulator
12/23/1986CA1215751A1 Phase lock loop circuit
12/17/1986EP0204903A1 Servo control of a motor speed by using a phase locked loop
12/17/1986EP0204894A2 Clock regenerator
12/16/1986US4630291 Externally synchronized timebase
12/16/1986US4630217 Signal synthesizer system
12/16/1986US4630000 Apparatus for controlling the frequency of a voltage controlled oscillator
12/16/1986US4629999 Phase-locked loop capable of generating a plurality of stable frequency signals
12/16/1986US4629914 Phase comparing circuit
12/16/1986CA1215436A1 Circuit to minimize local clock frequency disturbances when phase locking to a reference clock circuit
12/10/1986EP0204464A2 Clock synchronizing circuit including a voltage controlled oscillator
12/10/1986EP0204088A2 Integrated circuit with a phase-locked loop
12/09/1986US4628461 Phase detector
12/09/1986US4628282 Clock generator for digital demodulators
12/09/1986CA1215144A1 Circuit to minimize local clock frequency disturbances when phase locking to a reference clock circuit
12/09/1986CA1215143A1 Circuit to minimize local clock frequency disturbances when phase locking to a reference clock circuit
12/09/1986CA1215140A1 Phase comparator and data separator
12/09/1986CA1215133A1 Low noise signal generator
12/04/1986WO1986007219A1 Phase modulators
12/03/1986EP0203756A2 Frequency synthesisers
12/03/1986EP0203208A1 Frequency synthesis circuit for the generation of an analogous signal with a digitally stepwise tunable frequency
12/02/1986US4626911 Digital data recovery circuit
12/02/1986US4626798 Phase-lock loop including integrated circuit voltage controlled oscillator
12/02/1986US4626797 Phase locked loop providing three-level control signal to VCO
12/02/1986US4626796 Digital apparatus and method for programmably phase shifting an audio tone
12/02/1986US4626787 Application of the phaselock loop to frequency synthesis
11/1986
11/26/1986EP0202347A1 Frequency division circuit for non-integer divisors after the manner of a rate multiplier
11/25/1986US4625180 Intermittently operated frequency synthesizer having suppressed frequency instability
11/20/1986EP0202072A2 Frequency synthesizer
11/20/1986EP0202015A2 Digital phase-locked loops
11/19/1986CN86101688A Frequency synthesizer circuit for generating an analog signal of digitally step-adjustable frequency
11/19/1986CN86101616A Divide-by-fraction frequency divider circuit designed in the manner of a rate multiplier
11/18/1986US4623852 Voltage controlled oscillator having frequency independent of process parameters
11/18/1986US4623851 Voltage controlled oscillator using flip-flop controlled switching circuits
11/18/1986CA1214236A1 Bit synchronization arrangement for a data modem or data receiver
11/12/1986CA1213946A Circuit for limiting jitter transients during switching
11/07/1986EP0187842A4 Loran c cycle slip reduction technique.
10/1986
10/29/1986EP0199686A1 Method and apparatus for locking the signal from a controlled oscillator to that of a reference oscillator
10/29/1986CN86101722A Wide range digital phase/frequency detector
10/22/1986EP0198711A2 Digital circuit for detecting the locked state of an oscillator
10/21/1986US4619001 Tuning systems on dielectric substrates
10/21/1986US4618996 Dual pilot phase lock loop for radio frequency transmission
10/15/1986CN85201675U Automatic discrete frequency-controlling system
10/14/1986US4617679 Digital phase lock loop circuit
10/14/1986US4617587 Recovery system for a control loop
10/14/1986US4617527 PU lock acquisition with scan restart upon false lock
10/14/1986US4617520 Digital lock detector for a phase-locked loop
10/14/1986US4617480 High speed data synchronizer which minimizes circuitry
10/08/1986EP0196868A2 Frequency synthesizer modulation response linearization
10/08/1986EP0196697A1 AM receiver
10/07/1986US4616192 Phase-locked loop with switchable phase detector
10/07/1986US4616191 Multifrequency microwave source
09/1986
09/30/1986US4614917 Millimeter wave frequency synthesizer with automatic loop gain correction and sophisticated lock search systems
09/30/1986CA1212153A1 Timing delay equalization circuit
09/24/1986EP0195500A2 Charge-pump circuit for a phase-locked loop
09/24/1986EP0195011A1 Frequency controlled oscillator
09/23/1986US4613827 Write clock pulse generator used for a time base corrector
09/23/1986US4613825 Rapid acquisition, tracking PLL with fast and slow sweep speeds
09/17/1986EP0194741A1 Phase discriminator and data standardiser
09/16/1986US4612516 Rapidly tunable frequency synthesizer with oscillator frequency presetting means
09/16/1986US4612515 PLL having phase comparator with hysteresis characteristics
09/16/1986US4612511 FM demodulator including PLL and improved circuitry for eliminating distortion in the output thereof
09/09/1986CA1211167A1 Multifrequency microwave source
09/03/1986EP0193273A2 Improvements in or relating to synthesisers
09/03/1986EP0192652A1 Frequency comparator circuits
09/02/1986US4609886 PLL modulation circuit
09/02/1986US4609881 Frequency synthesizers
08/1986
08/28/1986WO1986005046A1 Improvement in or relating to synthesisers
08/28/1986WO1986005045A1 Improvement in or relating to synthesisers
08/27/1986EP0192104A2 Oscillating circuit
08/27/1986EP0191991A2 Control circuit including a memory providing step functions
08/27/1986CN86101017A 振荡电路 Oscillation circuit
08/26/1986US4608604 Circuit for reducing AFC offset error
08/19/1986US4607393 Receiver circuit comprising two phase control loops
08/19/1986US4607236 Linearized phase comparator and phase-locked loop comprising such a phase comparator
08/19/1986CA1210084A1 Phase comparing circuit
08/13/1986EP0190894A2 Improved phase detector and phase-locked loop apparatus
08/13/1986EP0190578A2 Clock phase discriminator