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)
01/1985
01/22/1985US4495474 PLL Control circuit for recovery of data from audio disk
01/22/1985US4495468 Controlled phase off-set digital test system
01/15/1985US4494090 Frequency modulation system for a frequency synthesizer
01/15/1985US4494085 For use with an atomic frequency standard
01/15/1985US4494080 Voltage-controlled oscillator with independent gain and frequency controls
01/15/1985US4494079 Microprocessor controlled phase locked loops
01/15/1985US4494021 Self-calibrated clock and timing signal generator for MOS/VLSI circuitry
01/08/1985US4492936 Fractional-division frequency synthesizer for digital angle-modulation
12/1984
12/27/1984EP0129098A1 Locked time base
12/27/1984CA1180068A Signal regeneration circuit
12/27/1984CA1180054A Double phase lock loop arrangement
12/27/1984CA1180052A Circuit for generating a sinusoidal synchronisation voltage for firing thyristors
12/25/1984US4490688 Digital and analog phase detector for a frequency synthesizer
12/18/1984US4489287 Phase synchronizing circuit for digital data reproduction
12/18/1984CA1179743A1 Phase comparator
12/11/1984US4488123 Frequency synthesizer
12/05/1984EP0060862B1 Generator circuit of a regulation voltage function of a differential frequency or phase and utilization of such circuit
12/04/1984US4486717 Phase controlled oscillator including a phase lock loop and dual sweep oscillators
12/04/1984CA1179025A1 Optimized fractional frequency synthesizer
12/04/1984CA1179024A1 Suppressed clock extraction by a phase locked loop
11/1984
11/27/1984US4485487 Method of, and a receiver for, demodulating a double sideband amplitude modulated signal in a quasi-synchronous area coverage scheme utilizing sideband diversity
11/27/1984US4485479 Phase control device
11/27/1984US4485354 PLL Oscillator synchronizing system with DC control of free-running frequency
11/27/1984US4485353 PLL Oscillator synchronizing system with matrix for phase correction
11/21/1984EP0125811A2 Improvements in or relating to signal generators
11/21/1984EP0125790A2 Frequency synthesisers
11/20/1984US4484296 Phase programmable signal generator means
11/20/1984US4484154 Frequency control with a phase-locked-loop
11/20/1984US4484153 Voltage converter for a frequency synthesizer
11/20/1984US4484152 Phase-locked loop having improved locking capabilities
11/20/1984US4484142 Phase detector circuit
11/20/1984CA1178346A1 Phase modulator with phase-unlocked state detecting function
11/14/1984EP0124940A1 Phase-locked loop and device for demodulating frequency-modulated signals comprising such a loop
11/13/1984US4482869 PLL Detection circuit having dual bandwidth loop filter
11/13/1984US4482857 Closed loop power factor control for drilling rigs
11/06/1984US4481484 Control circuit for low noise frequency agile oscillator
10/1984
10/30/1984US4479514 Float positioning assembly for pilot operated valve
10/30/1984CA1177143A1 Device for the recovery of a clock signal from a binary signal
10/23/1984US4479096 Voltage variable crystal controlled oscillator
10/23/1984US4479091 Phase locked loop FM demodulator with variable bandwidth loop filter
10/23/1984CA1176767A1 Receiver provided with a frequency synthesizer capable of storing fine tuning information
10/23/1984CA1176718A1 Amplifier
10/23/1984CA1176714A1 Clock synchronization system
10/17/1984EP0122095A2 Circuit for reducing offset error in FM detection
10/16/1984US4477919 Range control circuit for counter to be used in a frequency synthesizer
10/09/1984US4476490 Horizontal scanning frequency multiplying circuit
10/09/1984US4476445 Methods and apparatus for rapid and accurate frequency syntonization of an atomic clock
10/09/1984CA1175930A1 Phase tolerant bit synchronizer for digital signals
10/09/1984CA1175922A1 Arrangement for angle modulating a phase-locked loop frequency synthesizer
10/09/1984CA1175909A1 Zone switching system for a frequency synthesized transceiver
10/02/1984CA1175509A1 Wideband, synthesizer switched element voltage controlled oscillator
10/02/1984CA1175507A1 Frequency guided phase locked loop
10/02/1984CA1175506A1 Frequency synthesiser of the phase lock loop type
10/02/1984CA1175491A1 Phase locked loop tuning system including a prescaler conditioned to oscillate at an out-of-band frequency
09/1984
09/25/1984US4473805 Phase lock loss detector
09/19/1984EP0118783A1 Detector circuit
09/18/1984US4472820 Program swallow counting device using a single synchronous counter for frequency synthesizing
09/11/1984US4471299 Circuit for digital phase difference measuring and synchronizing between pulse trains
09/05/1984EP0117723A2 Radio communications systems
09/04/1984US4470145 Single sideband quadricorrelator
09/04/1984US4470018 Circuit for producing a control voltage depending on frequency and/or phase differences
09/04/1984CA1173917A1 Digital frequency divider suitable for a frequency synthesizer
08/1984
08/28/1984US4468638 Linear sweep frequency modulator for FM/CW radio altimeter
08/28/1984US4468632 Phase locked loop frequency synthesizer including fractional digital frequency divider
08/28/1984US4468581 Drive circuit for a piezoelectric resonator used in a fluidic gas angular rate sensor
08/28/1984CA1173515A1 Pulse delay compensation for frequency synthesizer
08/14/1984US4466127 Entry apparatus of digital value in memory
08/14/1984US4465982 Phase-locked loop with reduced frequency modulation
08/14/1984CA1172751A1 Afc circuit
08/08/1984EP0115326A2 Circuit arrangement for adjusting the mean frequency of the oscillator of a phase-locked loop
08/08/1984EP0115234A1 Method and circuit for the frequency and phase locking of a local oscillator in television
08/07/1984US4464638 Universal digital frequency synthesizer using single side band techniques
08/07/1984US4464620 Circuit for generating a sinusoidal synchronization voltage for firing thyristors
08/01/1984EP0114437A1 Microwave oscillator
07/1984
07/31/1984US4463321 Delay line controlled frequency synthesizer
07/24/1984US4462110 Digital phase-locked loop
07/24/1984US4462006 Method for stabilizing the resonance frequency of a rubidium frequency standard
07/24/1984CA1171471A1 Power control means for eliminating circuit to circuit delay differences and providing a desired circuit delay
07/17/1984CA1171138A1 Self-synchronization circuit for a ffsk and msk demodulator
07/10/1984US4459560 Plural phase locked loop frequency synthesizer
07/10/1984US4459559 Phase frequency detector using shift register
07/10/1984US4459558 Phase locked loop having infinite gain at zero phase error
07/04/1984EP0112599A2 Pulse corrector
07/03/1984US4458355 For processing an information signal
07/03/1984US4458329 Frequency synthesizer including a fractional multiplier
07/03/1984US4458214 Fast sampling phase locked loop frequency synthesizer
06/1984
06/26/1984US4456891 Radio frequency source circuit primarily for igniting the lamp of a rubidium frequency standard
06/26/1984US4456890 Data tracking clock recovery system using digitally controlled oscillator
06/26/1984US4456884 Phase-lock loop and Miller decoder employing the same
06/13/1984EP0045795B1 Synchronized frequency synthesizer with high speed lock
06/12/1984US4454484 Phase-locked loop including an amplifier circuit arrangement
06/12/1984US4454483 Temperature compensation of an oscillator by fractional cycle synthesis
06/12/1984US4454482 Atomic or molecular beam frequency standard with optical pumping and open resonator
06/05/1984US4453138 Broadband injection locked oscillator system
06/05/1984US4453137 Signal processor for plural frequency detection and tracking over predetermined range of frequencies
06/05/1984US4453136 AFC System for controlling an oscillator according to an input frequency
06/05/1984CA1168714A1 Phase locked loop circuit
05/1984
05/29/1984US4451930 Phase-locked receiver with derived reference frequency
05/29/1984US4451794 Phase comparator
05/29/1984CA1168315A1 Bit clock reproducing circuit
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