Patents for H03L 7 - Automatic control of frequency or phase; Synchronisation (37,643)
05/1997
05/14/1997EP0455711B1 Heterodyne stage having precise closed-loop control of the amplitude of the injection signal thereof
05/14/1997CN1149944A Loop filter of phase-locked loop
05/13/1997US5630222 Method and apparatus for generating multiple signals at multiple frequencies
05/13/1997US5629962 Phase locked loop circuit
05/13/1997US5629651 Phase lock loop having a reduced synchronization transfer period
05/13/1997US5629650 Self-biased phase-locked loop
05/13/1997US5629649 Frequency standard generator synchronized with satellite or other communication network reference clocks
05/09/1997WO1997016887A1 Controlled tracking of oscillators in a circuit with multiple frequency sensitive elements
05/07/1997EP0772359A1 Filtering device for processing a plurality of channels in a cable television distribution system
05/07/1997EP0772289A1 Device of the phase locked loop type for demodulating a frequency modulated signal
05/07/1997EP0772105A2 Loss-gain circuit and electronic device having such a circuit
05/07/1997EP0772058A2 Identification and/or sensor system
05/07/1997EP0771491A1 Very low noise, wide frequency range phase lock loop
05/07/1997EP0771490A1 Low noise, low voltage phase lock loop
05/07/1997EP0680672A4 Retriggered oscillator for jitter-free phase locked loop frequency synthesis.
05/07/1997CN1149350A Arrangement for reproducing N digital signals from N adjacent tracks on a record carrier
05/06/1997US5628060 Apparatus and method for selecting station using D/A converter to control the local oscillator
05/06/1997US5627604 Stabilizing the lock up of a bi-phase stable FPLL by augmenting a recovered DC pilot
05/06/1997US5627596 Video synchronization circuit comprising a PLL with a circuit to set the frequency of the output signal when the feedback signal is not present
05/06/1997US5627500 Phase modulator having individually placed edges
05/06/1997US5627496 PLL and phase detection circuit therefor
05/02/1997EP0771105A2 Clock re-timing apparatus with cascaded delay stages
05/02/1997EP0771076A1 Frequency synthesizer
05/02/1997EP0771075A2 Phase locked loop having voltage controlled oscillator utilizing combinational logic
04/1997
04/30/1997DE19644283A1 Delay time measuring device for circuit for testing semiconductor components
04/30/1997DE19637942A1 Time base phase variation for digital oscilloscope
04/30/1997CN1148755A Circuit for synchronous transmitter local oscillator frequency in digital microwave system applied in same wave channel
04/30/1997CN1148754A Digital frequency control circuit, phase control circuit and PLL circuit
04/30/1997CN1148697A Vision signal treatment device for automatic regulating phase position of sample clock
04/29/1997US5625646 Method, device, DSP and modem for efficient echo canceler phase roll tracking
04/29/1997US5625358 Digital phase-locked loop utilizing a high order sigma-delta modulator
04/29/1997US5625326 Lock alarm circuit of a synthesizer
04/29/1997US5625325 System and method for phase lock loop gain stabilization
04/29/1997US5625324 Ultra low noise frequency generator producing the sum of plural signal sources
04/29/1997US5625319 FM demodulator for reception of satellite broadcasting
04/29/1997US5625306 Charge pumping circuit and PLL circuit
04/24/1997WO1997015119A1 Method and apparatus for rapid re-establishment of phase lock in a transmission system
04/24/1997WO1997015118A1 Phase-locked loop
04/24/1997CA2233680A1 Phase-locked loop
04/23/1997EP0769851A2 Digital locked loop
04/23/1997EP0452452B1 Loop filter for a frequency synthesizer
04/23/1997CN1148293A Intermittent operation receiver with variable pre-heat time for its phase-locked circuit
04/22/1997US5623523 Method and apparatus for increasing voltage in a charge pump used in a phase locked loop
04/22/1997US5623234 Clock system
04/17/1997WO1997014215A2 Comparator with smooth start-up for high frequencies
04/17/1997WO1997014214A1 Compensated delay locked loop timing vernier
04/17/1997WO1997014211A1 Numerical voltage controlled oscillator
04/16/1997EP0768756A2 Receiver and frequency synthesizer-tuner for the same
04/16/1997EP0768660A1 Device and method for reproducing data from disk, method for controlling rotation of disk, and reproduction clock generating device
04/16/1997EP0767987A1 Digital phase comparator
04/16/1997EP0739563A4 Higher order digital phase loop filter
04/15/1997US5621771 Open loop switching frequency source utilizing closed loop stabilization
04/15/1997US5621755 CMOS technology high speed digital signal transceiver
04/15/1997US5621485 Apparatus and method for synchronizing a horizontal deflection signal with a horizontal sync signal
04/15/1997US5621360 Voltage supply isolation buffer
04/15/1997US5621349 Device for controlling an output level of an FM detecting circuit using phase locked loop
04/10/1997WO1997013325A1 Variable sample-rate dac/adc/converter system
04/10/1997DE19537361A1 Receiver clock recovery method for constant bit rate digital signal in ATM network
04/09/1997EP0767538A1 Method and device for generating a signal
04/09/1997EP0766892A1 Apparatus and method for clock alignment and switching
04/09/1997EP0766833A1 Electronic viewing aid
04/09/1997CN1147178A Clock delay compensating & Duty controlling apparatus of phase-locked loop
04/09/1997CN1147169A Resistorless voltage controlled oscillator
04/09/1997CN1147168A Synchronous transmission phase modulating system for bottle making machine
04/08/1997US5619686 Source synchronized data transmission circuit
04/08/1997US5619543 Digital phase-locked loop filter
04/08/1997US5619484 Pulling-in circuit for PLL circuit, pulling-in method for PLL circuit, PLL circuit device and apparatus for reproducing optical disc
04/08/1997US5619171 Phase-locked loop, phase comparator for use in the phase-locked loop, and reproducing device including the phase-locked loop
04/08/1997US5619170 PLL timing generator with voltage controlled oscillator
04/08/1997US5619161 Diffrential charge pump with integrated common mode control
04/08/1997US5619154 Numerical voltage controlled oscillator
04/08/1997US5619148 Digital variable in-lock range phase comparator
04/03/1997WO1997012298A1 A miniature atomic frequency standard
04/03/1997CA2232933A1 A miniature atomic frequency standard
04/02/1997EP0766404A2 Clock generator utilizing phase locked loop circuit
04/02/1997EP0766403A1 Variable frequency divider
04/02/1997EP0766353A1 Atomic frequency standard
04/02/1997CN1146672A Two-purpose circuit for receiving and transmitting
04/01/1997US5617454 Transmission system
04/01/1997US5617062 Timing circuit with rapid initialization on power-up
03/1997
03/27/1997DE19635891A1 Receiver with signal generating oscillator at frequency corresponding to oscillation control signal
03/26/1997EP0765057A2 Apparatus and method for timing recovery for vestigial side band modulation system
03/26/1997EP0764367A2 A loop filter of a phase-locked loop
03/26/1997EP0764366A1 A method for controlling a phase-locked loop, and a phase-locked loop
03/26/1997EP0733286A4 D/a for controlling an oscillator in a phase locked loop
03/26/1997CN1034382C PLL circuitry
03/25/1997US5615177 Hybrid-synchronous type clock synchronizing apparatus of which dominant gain greater than sum of other gains, network therewith, and clock synchronizing method thereof
03/25/1997US5614870 For generating an oscillatory signal that is locked to synchronizing signal
03/25/1997US5614869 High speed divider for phase-locked loops
03/25/1997US5614868 Phase locked loop having voltage controlled oscillator utilizing combinational logic
03/25/1997US5614855 Delay-locked loop
03/20/1997WO1997010647A1 Transmission process in which a conversion oscillator signal is synthesised by means of a fractional n-phase-shift control loop
03/20/1997WO1997010538A1 Memory controller with low skew control signal
03/20/1997DE19534462A1 Übertragungsverfahren Transmission method
03/19/1997EP0763896A2 Phase locked loop
03/19/1997EP0763825A2 Data detection apparatus
03/19/1997EP0474729B1 Voltage control oscillator with automatic current control
03/18/1997US5613197 Multi-channel transponder with channel amplification at a common lower frequency
03/18/1997US5612981 Apparatus and methods for improving timing recovery of a system clock
03/18/1997US5612980 Method and apparatus for fast lock time