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)
07/1995
07/19/1995EP0663117A1 Timing recovery circuit for synchronous waveform sampling
07/19/1995EP0497801B1 A phase locked loop for producing a reference carrier for a coherent detector
07/18/1995US5434887 Quadrature modulation circuit for use in a radio transmitter
07/18/1995US5434525 Wide-range variable delay and ring oscillator
07/13/1995WO1995019067A1 A digitally controlled first order jitter attenuator using a digital frequency synthesizer
07/13/1995CA2180466A1 A digitally controlled first order jitter attenuator using a digital frequency synthesizer
07/12/1995EP0662756A1 Clock circuit
07/12/1995EP0662271A1 Apparatus and method for producing periodic synchronization references forming a synchronization signal
07/11/1995US5432827 Clock extraction circuit for fiber optic receivers
07/11/1995US5432826 Digital phase comparator and phase-locked loop
07/11/1995US5432513 Codec
07/11/1995US5432481 Phase-locked loop circuit
07/11/1995US5432480 Phase alignment methods and apparatus
07/06/1995WO1995018508A1 Circuit for the acquisition of a carrier signal by applying a substitute pilot to a synchronous demodulator
07/06/1995WO1995018384A1 Digital phase detector
07/06/1995DE4447142A1 Sendereferenzoszillator eines VSAT für Satellitenkommunikation Transmission reference oscillator of a VSAT satellite communications
07/05/1995EP0661842A2 Clock recovery using gated phase lock loop
07/05/1995EP0661839A2 Synchronization of multiple transmit/receive devices
07/05/1995EP0661816A1 Single-loop frequency synthesizer and electronic assembly comprising such a synthesizer
07/05/1995EP0661815A1 Frequency Synthesizer
07/05/1995EP0661810A2 Fractional phase shift ring oscillator arrangement
07/05/1995EP0661686A2 Display control apparatus
07/05/1995EP0661685A1 Apparatus for generating a display clock signal
07/05/1995CN1104818A Synchronization circuit using a high speed digital slip counter
07/04/1995US5430772 Bit synchronizer for NRZ data
07/04/1995US5430764 Direct digital frequency synthesizer
07/04/1995US5430763 Frequency stabilizing circuit used for a pulse modulator for an image signal including a synchronous signal
07/04/1995US5430660 Method for calibrating time adjustments
07/04/1995CA2048646C Fractional n/m synthesis
06/1995
06/30/1995CA2139191A1 Transmit reference oscillator of a vsat for satellite communications
06/30/1995CA2136888A1 Fractional phase shift ring oscillator arrangement
06/28/1995EP0660611A2 A clock recovery circuit for serial digital video
06/28/1995EP0660560A1 Clock signal regeneration method and apparatus
06/28/1995EP0660526A2 Method and arrangement for controlling a loop filter
06/28/1995EP0660518A1 Pulse generator
06/28/1995EP0660517A2 Voltage controlled oscillator (VC0) with symmetrical output and logic gate for use in same
06/28/1995EP0659313A1 Harmonic frequency synthesizer with adjustable frequency offset.
06/27/1995US5428835 AM receiver on semi-conductor with internally generated oscillation signal representing if band pass filter center frequency deviation
06/27/1995US5428648 Digital PLL circuit having signal edge position measurement
06/27/1995US5428318 Voltage controlled ring oscillator producing a sum output
06/27/1995US5428317 Phase locked loop with low power feedback path and method of operation
06/27/1995US5428309 Delay circuit
06/27/1995US5428308 Direct digital synthesizer and phase locked loop frequency synthesizer
06/22/1995WO1995017043A1 Apparatus and method for controlling the loop bandwidth of a phase locked loop
06/21/1995EP0658995A1 CMOS technology high speed digital signal transceiver
06/21/1995EP0658838A1 Frequency synthesizer
06/20/1995US5426672 Process and device for timing recovery
06/20/1995US5426398 High speed differential mode voltage controlled ring oscillator
06/20/1995US5426397 Phase detector for a phase-lock-loop
06/20/1995US5426384 Voltage controlled oscillator (VCO) with symmetrical output and logic gate for use in same
06/15/1995WO1995016309A1 D/a for controlling an oscillator in a phase locked loop
06/15/1995WO1995016305A1 Differential amplifier with high differential and low common mode impedance
06/14/1995EP0657796A2 A clock generator and phase comparator for use in such a clock generator
06/14/1995DE4342344A1 Circuitry for PLL with phase detector and reference current source
06/13/1995US5424689 Filtering device for use in a phase locked loop controller
06/13/1995US5424687 PLL frequency synthesizer and PLL frequency synthesizing method capable of obtaining high-speed lock-up and highly-reliable oscillation
06/13/1995CA2080013C Phase locked loop with d.c. modulation
06/07/1995EP0656683A1 Arrangement for the reduction of disturbances in oscillating loops in integrated circuits
06/06/1995US5422911 Frequency walled phase lock loop
06/06/1995US5422835 Digital clock signal multiplier circuit
06/06/1995US5422604 Local oscillation frequency synthesizer for vibration suppression in the vicinity of a frequency converging value
06/06/1995US5422603 CMOS frequency synthesizer
06/06/1995US5422584 Variable phase sine wave generator for active phased arrays
06/06/1995US5422529 Differential charge pump circuit with high differential and low common mode impedance
06/01/1995DE4340090A1 Adjustable signal generator for high frequency signals
05/1995
05/31/1995EP0655840A2 Delay locked loop based clock synthesizer using a dynamically adjustable number of delay elements therein
05/31/1995EP0655829A1 Spread spectrum clock generator and associated method
05/31/1995EP0655356A1 Control system for variable rate dampers
05/31/1995CN1103217A PLL frequency synthesizer and high-speed frequency lock method using the same
05/30/1995US5420550 Method and apparatus for sensing common mode error
05/30/1995US5420549 Extended linear ion trap frequency standard apparatus
05/30/1995US5420547 Ring oscillator having bandpass filters between stages
05/30/1995US5420546 Variable frequency oscillator having an output frequency that is controllable
05/30/1995US5420545 Phase lock loop with selectable frequency switching time
05/30/1995US5420544 Semiconductor integrated circuit, method of designing the same and method of manufacturing the same
05/30/1995US5420543 Method and apparatus for determining a constant gain of a variable oscillator
05/26/1995WO1995014340A1 Source synchronized data transmission circuit
05/24/1995EP0654907A1 Clock recovery circuit with matched oscillators
05/24/1995EP0654188A1 Microwave oscillator with improved phase noise characteristic
05/24/1995CN1102892A Multiple frequency output clock generator system
05/23/1995US5418573 Apparatus and method for producing periodic synchronization references forming a synchronization signal
05/23/1995US5418499 Ring oscillator having selectable number of inverter stages
05/18/1995WO1995013669A1 Apparatus and method for enabling elements of a phase locked loop
05/18/1995WO1995013666A1 Apparatus and method for operating a phase locked loop frequency synthesizer responsive to radio frequency channel spacing
05/18/1995WO1995013659A1 Phase lock loop synchronization circuit and method
05/18/1995WO1995013658A1 Phase locked loop error suppression circuit and method
05/18/1995WO1995013651A1 Phase-locked loop frequency modulation circuit for input modulation signals having low-frequency content
05/18/1995CA2176365A1 Phase-locked loop frequency modulation circuit for input modulation signals having low-frequency content
05/17/1995EP0653845A1 A method for synchronizing the reference frequency oscillator to a master oscillator
05/16/1995US5416809 Digital phase locked loop apparatus
05/16/1995US5416807 Method and apparatus for synchronizing periodic sync pulse generations by a number of high speed circuits
05/16/1995US5416691 Charge pump circuit
05/16/1995US5416446 Digital programmable frequency generator
05/16/1995US5416443 Reliable clock source having a plurality of redundant oscillators
05/10/1995EP0652642A1 Method and apparatus for a phase-locked loop circuit with holdover mode
05/10/1995EP0651923A1 A method and a device for generating a clock signal in a multiplexing system
05/09/1995US5414741 Low phase noise oscillator frequency control apparatus and method
05/09/1995US5414391 Frequency synthesizer with frequency-division induced phase variation canceler
05/09/1995US5414390 Center frequency controlled phase locked loop system
05/09/1995CA2073347C Apparatus and method for generating quadrature signals
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