Patents for H03L 7 - Automatic control of frequency or phase; Synchronisation (37,643)
01/1998
01/07/1998CN1169622A Frequency synthesizing device
01/06/1998US5706485 Method and apparatus for synchronizing clock signals in a multiple die circuit including a stop clock feature
01/06/1998US5706035 Display control apparatus
01/06/1998US5705956 Neural network based PLL
01/06/1998US5705955 For conserving power resources in a transmission circuit
01/06/1998US5705947 Clock generator
01/06/1998US5705896 Control electronic ballast system using feedback
01/02/1998DE19708650A1 Standard frequency generator for radio communications transceiver
12/1997
12/31/1997WO1997050187A1 Satellite receiver
12/31/1997CN2271780Y Phase locking loop device capable of lapping audio-visual equipment
12/31/1997CN2271779Y Synchronous transmission control device bottle-making machine
12/31/1997CN1169216A Wide frequency spectrum TV tuner with single local oscillator
12/30/1997US5703540 Voltage-controlled crystal oscillator with extended range
12/30/1997US5703539 Apparatus and method for controlling the loop bandwidth of a phase locked loop
12/30/1997US5703538 Radar exciter local oscillator phase lock acquisition control circuit
12/30/1997US5703537 Phase-locked loop clock circuit for generation of audio sampling clock signals from video reference signals
12/30/1997US5703514 Digital frequency divider phase shifter
12/30/1997US5703511 Charge pump circuit, PLL circuit with charge pump circuit, and semiconductor integrated circuit with charge pump circuit
12/30/1997US5703480 Method and arrangement for determining the phase difference between clock signals in a communication equipment
12/23/1997US5701602 For controlling frequency of an input signal
12/23/1997US5701598 Scanning receiver with direct digital frequency synthesis and digital signal processing
12/23/1997CA2065853C Asynchronous signal extracting circuit
12/23/1997CA2052589C Rate conversion apparatus
12/17/1997EP0813303A1 Voltage-controlled oscillator and non-contact IC card including voltage-controlled oscillator
12/17/1997EP0777942A4 Method of programming a frequency synthesizer and a radio having a frequency synthesizer
12/17/1997CN1168028A Voltage-controllor and non-contact IC card including voltage-controlled oscillator
12/17/1997CN1168027A Timing recovery system for digital signal processor
12/16/1997US5699392 Method and system for the recovery of an encoder clock from an MPEG-2 transport stream
12/16/1997US5699387 Phase offset cancellation technique for reducing low frequency jitters
12/16/1997US5699054 For receiving an activation signal
12/16/1997US5699020 Phase latched differential charge pump circuit and method
12/11/1997WO1997047089A1 Phase locked loop circuit
12/10/1997EP0812066A1 High-frequency device
12/09/1997US5697082 Self-calibrating frequency standard system
12/09/1997US5697068 System and method for providing a non-invasively tunable transceiver synthesizer
12/09/1997US5696793 Phase difference detection circuit for extended partial-response class-4 signaling system
12/09/1997US5696468 Method and apparatus for autocalibrating the center frequency of a voltage controlled oscillator of a phase locked loop
12/09/1997US5696462 Serial clock synchronization circuit
12/04/1997WO1997045959A1 Microcontroller having a minimal number of external components
12/04/1997DE19703986A1 Signal shaper for input signal wave form reshaping
12/04/1997DE19630397C1 Count difference provision system for digital transmission system
12/03/1997EP0810736A1 PLL frequency synthesizer
12/03/1997EP0809886A1 A fast sigma-delta modulator having a controlled clock generator
12/03/1997CN1166736A Synchronous modulation method and apparatus for in-line regeneration of WDM soliton signal, and optical telecommunications system using the method
12/02/1997US5694441 Phase synchronizing apparatus, decoder and semiconductor integrated circuit device
12/02/1997US5694440 Data synchronizer lock detector and method of operation thereof
12/02/1997US5694089 Fast frequency switching synthesizer
12/02/1997US5694088 Phase locked loop with improved phase-frequency detection
12/02/1997US5694087 Anti-latching mechanism for phase lock loops
12/02/1997US5694086 Precision, analog CMOS one-shot and phase locked loop including the same
12/02/1997US5694068 Digital phase-locked loop (PLL) having multilevel phase comparators
12/02/1997US5694062 Self-timed phase detector and method
12/02/1997US5694036 Direction sensor and distortion reduction control circuitry
11/1997
11/27/1997WO1997044930A1 Frequency generating circuit
11/27/1997WO1997044904A1 Microcontroller with firmware selectable oscillator trimming
11/27/1997WO1997044893A1 Method and apparatus for controlling a phase lock loop
11/26/1997EP0809363A2 Control circuit for PLL synthesizer apparatus
11/26/1997CN1166119A Frequency generator of radio communication system
11/26/1997CN1166093A Method and apparatus for temperature compensation of reference oscillator in communication device
11/26/1997CN1166091A Phase locked loop circuit
11/26/1997CN1036561C Automatic frequency control appts.
11/25/1997US5692165 Memory controller with low skew control signal
11/25/1997US5692023 Phase locked loop including distributed phase correction pulses for reducing output ripple
11/25/1997US5691669 Dual adjust current controlled phase locked loop
11/25/1997US5691660 Clock synchronization scheme for fractional multiplication systems
11/20/1997WO1997043740A1 Radio frequency data communications device
11/20/1997DE19619408A1 Frequency synthesiser circuit e.g. for radio receiver
11/19/1997EP0808030A2 A radio frequency noise reduction arrangement
11/19/1997CN1165438A Frequency converter for outputting stable frequency
11/18/1997US5689536 Clock supply apparatus indicating and transmitting preciseness of generated clock signal
11/18/1997US5689533 Refined timing recovery circuit
11/18/1997US5689309 Control circuit for mixing two video signals
11/18/1997CA2150818C Automatic frequency control apparatus
11/13/1997WO1997042710A1 Multiple input frequency locked loop
11/13/1997DE19617635A1 Phase-locked loop with differential loop filter
11/12/1997EP0806837A2 Semiconductor integrated circuit operable as a phase-locked loop
11/12/1997EP0806082A1 Wide frequency spectrum television tuner with single local oscillator
11/12/1997EP0587680B1 Method and apparatus for detecting a sequence of clock reference pulses
11/11/1997US5687203 Digital phase locked loop circuit
11/11/1997US5687202 Programmable phase shift clock generator
11/11/1997US5687201 Phase-locked-loop with linear combination of charge pump and current controlled oscillator
11/11/1997US5686903 Trainable RF transceiver
11/11/1997US5686868 Semiconductor integrated circuit having VCO coupled through capacitance and buffer circuits
11/11/1997US5686867 Regulated supply for voltage controlled oscillator
11/11/1997US5686866 Phase locked loop providing fast tuning for large frequency changes
11/11/1997US5686865 Phase synchronous circuit
11/11/1997US5686864 Method and apparatus for controlling a voltage controlled oscillator tuning range in a frequency synthesizer
11/11/1997US5686862 FM demodulator integrated on semiconductor chip without discrete circuit components
11/11/1997US5686849 Circuit for clock signal extraction from a high speed data stream
11/06/1997WO1997041665A1 D.t.r.m. data timing recovery module
11/06/1997WO1997041551A1 Apparatus for reproducing a digital information signal from a record carrier
11/06/1997DE19653134A1 PLL circuit for improving phase synchronisation time
11/06/1997CA2252920A1 D.t.r.m. data timing recovery module
11/05/1997EP0805570A1 Digital phase locked loop for clock recovery
11/05/1997EP0805560A2 Digital PLL circuit and initial setting method
11/05/1997EP0805553A1 Voltage-controlled oscillator and phase lock circuit incorporating this oscillator
11/05/1997EP0805438A2 Servo circuit, digital PLL circuit and optical disk device
11/05/1997EP0804740A1 Handheld vector network analyzer
11/05/1997CN1036368C Synchronized horizontal scanning at horizontal frequency multiples
11/04/1997US5684844 Phase-locking method and a loop applying the method