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)
03/1992
03/03/1992US5093628 Current-pulse integrating circuit and phase-locked loop
03/03/1992US5093584 Self calibrating timing circuit
03/01/1992WO1992004767A1 Latched accumulator fractional n synthesis with residual error reduction
03/01/1992WO1992004766A1 Multiple latched accumulator fractional n synthesis
03/01/1992WO1992004765A2 Frequency modulated synthesizer using low frequency offset mixed vco
02/1992
02/26/1992EP0472332A1 Circuit for generating a clock signal which is locked to a specific phase of a color burst signal in a color video signal
02/26/1992EP0472211A1 Phase-locked loop clock signal generator
02/25/1992US5091706 Phase locked loop with D.C. modulation and use in receiver
02/25/1992US5091702 Automatic sweep-to-lock circuit for a phase-locked loop
02/20/1992WO1992002986A1 Phase synchronizing circuit
02/19/1992EP0471506A2 Phase locked loop including non-integer multiple frequency reference signal
02/19/1992EP0471502A1 Phase locked loop circuit and semiconductor integrated circuit using the phase locked loop circuit
02/19/1992EP0471487A1 Frequency synthesizer
02/19/1992EP0471387A2 Control circuit using a read-only memory as a comparator
02/19/1992EP0471207A2 Circuit for the regeneration and synchronisation of a digital signal
02/18/1992US5089792 Phase locked loop with phase difference signal adjustment circuit
02/17/1992CA2046789A1 Frequency synthesizer
02/11/1992US5087842 Delay circuit having one of a plurality of delay lines which may be selected to provide an operation of a ring oscillator
02/11/1992US5087835 Positive edge triggered synchronized pulse generator
02/11/1992US5087828 Timing circuit for single line serial data
02/11/1992CA1295698C Start-stop oscillator having fixed starting phase and minimized quiescentpower dissipation
02/11/1992CA1295697C Extended range phaselocked loop with fast response time
02/06/1992WO1992002080A1 Clock regenerating circuit
02/06/1992WO1992002077A1 Fractional-n synthesizer having modulation spur compensation
02/05/1992EP0469738A2 Low noise frequency divider architecture
02/05/1992EP0469233A2 Digital synthesizer with phase memory
02/05/1992EP0468988A1 Pll circuit for generating a beat signal in a recorder
02/05/1992CN1058498A 相位检测器 Phase detector
02/04/1992US5086236 Synchronizing circuit of two clock signals
01/1992
01/28/1992US5084902 Jitter canceller with an initial value setting circuit for an adaptive filter
01/28/1992US5084681 Digital synthesizer with phase memory
01/22/1992EP0467458A2 Apparatus for maintaining the frequency of an oscillator within a predetermined frequency range
01/22/1992EP0467449A2 Multiloop microwave frequency synthesizer with low phase noise
01/21/1992US5083097 Adaptive control system for pulsed megawatt klystrons
01/16/1992DE4021846A1 Microwave oscillator with simple frequency sand modification - has frequency divider between output of VCO and phase detector
01/15/1992EP0466084A1 SAW electric part and frequency conversion circuit
01/15/1992EP0465559A1 Frequency synthesizer with fm modulation
01/14/1992US5081705 Communication system with external reference signal processing capability
01/14/1992US5081655 Digital phase aligner and method for its operation
01/14/1992US5081429 Voltage controlled oscillator with controlled load
01/14/1992US5081428 Voltage controlled oscillator having 50% duty cycle clock
01/14/1992US5081427 Fast lock time phase locked loop
01/11/1992WO1992001344A1 Phase locking circuit for jitter reduction in a digital multiplex system
01/09/1992WO1992000558A2 Apparatus for generating multiple phase clock signals and phase detector and recovery apparatus therefor
01/08/1992EP0464230A1 Digital phase locked loop
01/08/1992EP0464139A1 Frequency synthesizer with control of start-up battery saving operations
01/07/1992US5079526 Frequency modulated synthesizer using low frequency offset mixed VCO
01/07/1992US5079521 Fractional-n frequency synthesizer using delta-sigma modulator in divider control circuit
01/07/1992US5079520 Interpolating phase-locked loop frequency synthesizer
01/07/1992US5079519 Digital phase lock loop for a gate array
01/07/1992CA1294013C Frequency modulation in phase-locked loops
01/07/1992CA1294005C Apparatus and method for phase noise and post tuning drift cancellation
01/05/1992WO1992001343A1 Circuit for extracting asynchronous signal
01/02/1992EP0463380A1 Digital data regeneration and deserialization circuits
01/02/1992DE4019667A1 Servo synchronisation circuitry with variable oscillator - has regulator with current sources controlled by respective phase and frequency detectors
01/02/1992DE4019666A1 Servo synchronisation circuitry with phase and frequency detectors - feeds frequency detector oscillator output signal directly to 2 memories and phase-shifted to other 2 memories
12/1991
12/31/1991US5077529 Wide bandwidth digital phase locked loop with reduced low frequency intrinsic jitter
12/31/1991CA1293800C Rapid signal acquisition and phase averaged horizontal timing from composite sync
12/31/1991CA1293776C Phase detector
12/27/1991EP0462747A1 Tunable oscillator with noise degeneration
12/27/1991EP0462341A1 A synchronous frequency modulated booster system
12/26/1991WO1991020128A1 Anti-aliasing for frequency output sensors
12/24/1991US5075640 Phase locked loop circuit responding to supplied signal frequency
12/24/1991US5075639 Plural phase locked loop circuit suitable for integrated circuit
12/24/1991US5075638 Standby system for a frequency synthesizer
12/24/1991US5075635 Device for correcting the phase induced by the class c operation of the solid state amplifier and radar system using such a device
12/24/1991US5075575 Externally synchronized programmable device
12/18/1991EP0461803A2 Digital-to-analog converter
12/18/1991EP0461749A2 Method and apparatus for controlling a variable frequency controlled oscillator
12/18/1991EP0461538A1 Hybrid control loop system
12/18/1991EP0461358A1 Frequency synthesizer
12/17/1991US5073907 Digital phase-lock loop
12/17/1991US5073869 Suppression of spurious frequency components in direct digital frequency synthesizer
12/11/1991EP0460274A1 Phase comparison circuit and method therefor
12/11/1991EP0460260A1 Tracking arrangement for synchronization
12/10/1991US5072196 Costas loop carrier recovery device
12/10/1991US5072195 Phase-locked loop with clamped voltage-controlled oscillator
12/10/1991CA1293032C Fully digital phase-locked loop
12/05/1991DE4017491A1 Phase lock loop radio - has comparison integrator, with input current progressively increased with closing time, or phase error via resistance network
12/04/1991EP0459446A1 Numerical controlled oscillator
12/03/1991US5070310 Multiple latched accumulator fractional N synthesis
11/1991
11/28/1991DE4016429A1 Frequency setting of phase locked loop circuit - uses switched D=flip=flop to prevent deviations caused by simultaneous input edges
11/27/1991EP0458282A2 Phase-lock loop device operable at a high speed
11/27/1991EP0458269A1 Phase-locked loop circuit
11/26/1991US5068628 Digitally controlled timing recovery loop
11/26/1991US5068626 Charge pump circuit
11/26/1991US5068625 Method for fast frequency acquisition in a phase locked loop
11/25/1991WO1991018444A1 Phase locked loop with d.c. modulation
11/19/1991US5067138 Phase-locked-loop circuit and bit-detection arrangement comprising such a phase-locked-loop circuit
11/19/1991US5066927 Dual modulus counter for use in a phase locked loop
11/12/1991WO1991018449A1 Scaler for synchronous digital clock
11/12/1991US5065450 Frequency modulated radio frequency broadcast network employing a synchronous frequency modulated booster system
11/12/1991US5065413 Phase locked loop circuit
11/12/1991US5065412 Process and circuit arrangement for digital control of the phase of scanning clock pulses
11/12/1991US5065408 Fractional-division synthesizer for a voice/data communications systems
11/12/1991US5065384 Clock signal generating circuit for a data storing and reproducing system
11/12/1991US5065239 Automatic control circuit for vertical synchronizing signal
11/12/1991US5065116 Zero phase restart compensation for VCO
11/12/1991US5065115 Digital phase-locked loop
11/06/1991EP0455298A1 Electrically controllable oscillator circuit and electrically controllable filter arrangement comprising said circuit
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