Patents for H03L 7 - Automatic control of frequency or phase; Synchronisation (37,643)
02/1995
02/28/1995US5394117 Direct digital synthesizer-based injection locked oscillator
02/28/1995US5394116 Fractional phase shift ring oscillator arrangement
02/28/1995US5394115 Automatic sweep acquisition circuit for a phase-locked-loop
02/28/1995US5394114 One nanosecond resolution programmable waveform generator
02/28/1995US5394106 Apparatus and method for synthesis of signals with programmable periods
02/28/1995US5394024 Circuit for eliminating off-chip to on-chip clock skew
02/22/1995EP0419622B1 Frequency synthesisers with fractional division
02/21/1995US5392171 Fully integrated programmable filters for disc drive subsystems
02/21/1995US5391996 Techniques for generating two high frequency signals with a constant phase difference over a wide frequency band
02/15/1995EP0639004A1 Digital time delay apparatus and method
02/15/1995EP0626113A4 Self-compensating digital delay semiconductor device with selectable output delays and method therefor.
02/15/1995CN1098838A Clock apparatus for a compressed video signal
02/15/1995CN1098789A Automatic microwave tracking and position system
02/14/1995US5390168 Radio frequency transmission circuit
02/14/1995US5389899 Frequency synthesizer having quick frequency pull in and phase lock-in
02/14/1995US5389898 Phase locked loop having plural selectable voltage controlled oscillators
02/14/1995US5389897 Method of and apparatus for limiting the free running frequency in multiplying phase-locked loop circuits
02/09/1995WO1995004405A1 Method and apparatus for charge pump with reduced charge injection
02/09/1995WO1995004256A1 Capacitive displacement sensor
02/08/1995EP0637882A1 Automatic frequency control arrangement
02/08/1995EP0637877A1 Device for contactless transfer of signals and energy
02/08/1995EP0637876A1 A phase locked loop and method of operation
02/08/1995EP0637792A1 Phase control apparatus
02/08/1995EP0626112A4 Compensated digital delay semiconductor device with selectable output taps and method therefor.
02/07/1995US5388249 Data processing system generating clock signal from an input clock, phase locked to the input clock and used for clocking logic devices
02/07/1995US5388127 Digital timing recovery circuit
02/07/1995US5388103 Frequency stabilizer for use in phase-shift keying radio communications system
02/07/1995US5387881 Atomic frequency standard
02/07/1995CA2053748C Pll frequency synthesizer capable of changing an output frequency at a high speed
02/02/1995WO1995003670A1 Apparatus and method for producing periodic synchronization references forming a synchronization signal
02/01/1995EP0637138A1 A lock detect circuit
02/01/1995EP0637137A2 Low-power, jitter-compensated phase locked loop and method therefor
02/01/1995EP0390800B1 Integratable phase-locked loop
01/1995
01/31/1995US5386437 Phase-locked loop circuit
01/26/1995DE4324527A1 Frequency conditioning arrangement for two frequency bands
01/24/1995US5384551 Fast locking phase locked loop frequency synthesizer
01/24/1995US5384550 Loop transient response estimator for improved acquisition performance
01/24/1995US5384502 Phase locked loop circuitry with split loop filter
01/19/1995WO1995002282A1 Harmonic frequency synthesizer with adjustable frequency offset
01/18/1995EP0634834A1 Linear, voltage-controlled oscillator
01/18/1995CN1027479C Temperature compensation of a crystal reference using direct digital synthesis
01/18/1995CN1027470C Integrated poly-phase power meter
01/17/1995US5382923 Charge-pump circuit for use in phase locked loop
01/17/1995US5382922 Calibration systems and methods for setting PLL gain characteristics and center frequency
01/17/1995US5382921 Automatic selection of an operating frequency in a low-gain broadband phase lock loop system
01/17/1995CA2057013C Synthesized selective call receiver having variable characteristics
01/10/1995US5381181 Clock recovery apparatus as for a compressed video signal
01/10/1995US5381116 Method and apparatus for performing frequency tracking in an all digital phase lock loop
01/10/1995CA2056739C Fault-tolerant wideband radar microwave signal generator
01/10/1995CA2038585C Signal detecting circuit for detecting a signal specified in a designated frequency
01/05/1995WO1995001047A2 A method and a device for converting a picture
01/05/1995DE4319344A1 Method for measuring a phase difference
01/04/1995EP0632378A2 Multiple frequency output clock generator system
01/04/1995EP0631701A1 Atomic beam resonator, particularly a cesium beam resonator
01/03/1995US5379325 Clock generating apparatus, data transmitting/receiving apparatus and data transmitting/receiving method
01/03/1995US5379003 VCO and buffer having noise filter on power supply line
01/03/1995US5379002 Frequency synthesizer using intermittently controlled phase locked loop
01/03/1995US5379000 Atomic clock employing ion trap of mono- or multi-planar geometry
01/03/1995CA2124746A1 Multiple frequency output clock generator system
12/1994
12/28/1994EP0631407A2 Method and device for phase-exact commutation of homogeneous pulses with different phase relation
12/28/1994EP0631387A1 Automatic frequency control using split-band signal strength measurements
12/28/1994EP0536301B1 Method and apparatus for storing a digital signal for use in a synchronous delay line
12/27/1994US5376974 Phase-locked looped synchronous video detector circuit
12/27/1994US5376891 Phase-sensitive rectifier arrangement with integration effect
12/27/1994US5376848 Delay matching circuit
12/27/1994US5376834 Initialization circuit for automatically establishing an output to zero or desired reference potential
12/22/1994WO1994029964A1 Process for enhancing the noise immunity of a phase-locked loop and device for applying same.
12/22/1994WO1994026041A3 A phase lock loop with idle mode of operation during vertical blanking
12/22/1994DE4011572A1 Frequency synthesis circuit
12/21/1994EP0630129A2 Method for generating a synchronised clock signal with a circuit for an adjustable oscillator
12/21/1994EP0629991A1 Synchronisation apparatus working over a wide range of frequencies
12/21/1994EP0629321A1 Circuit, counter and frequency synthesizer with adjustable bias current
12/20/1994US5375148 VCO bias generator in a phase lock loop
12/20/1994US5374905 Phase locked loop motor control circuit for tuning cavity resonator
12/20/1994US5374904 Phase-locked-loop circuit having adjustable reference clock signal frequency and filter capacitance compensation
12/20/1994US5374903 Generation of wideband linear frequency modulation signals
12/20/1994US5374902 For providing an output signal
12/20/1994US5374901 Semiconductor device
12/20/1994US5374900 Phase window test circuit
12/20/1994US5374860 Multi-tap digital delay line
12/15/1994DE4319066A1 Circuit arrangement for a controllable oscillator
12/13/1994US5373537 Method and apparatus for the synchronization of a clock means of a telecommunication switching system
12/13/1994US5373261 Direct optical injection locked fet oscillator
12/13/1994US5373259 Voltage controlled oscillator with dissimilar varactor diodes
12/13/1994US5373258 Method and apparatus for slaving the frequency and phase of an oscillator to a reference signal
12/13/1994US5373257 Phase synchronization circuit having a loop filter including two voltage/current converters
12/13/1994US5373256 PLL frequency synthesizer having a main loop and a secondary loop
12/13/1994US5373255 Low-power, jitter-compensated phase locked loop and method therefor
12/13/1994US5373254 Method and apparatus for controlling phase of a system clock signal for switching the system clock signal
12/08/1994WO1994028433A1 Gps synchronized frequency/time source
12/07/1994EP0627820A2 A charge pump with a programmable pump current and system
12/07/1994EP0627137A1 Digitally controlled phase shifter
12/06/1994US5371480 Step controlled signal generator
12/06/1994US5371425 Digital damping method and apparatus for phase-locked loops
12/06/1994US5371417 Multiple frequency output clock generator system
12/06/1994US5371416 Circuit and method of synchronizing clock signals
12/06/1994CA2059273C Phase detector
12/06/1994CA2043054C Phase-lock loop device operable at a high speed
11/1994
11/30/1994EP0626762A1 Fast tuned, injection locked, synthesised oscillator
11/30/1994EP0626761A1 Arrangement for synchronising two clocked apparatuses