Patents for H03L 7 - Automatic control of frequency or phase; Synchronisation (37,643)
02/1998
02/25/1998EP0825719A2 Phase locked loop
02/25/1998EP0825718A1 Oscillator circuit
02/25/1998EP0825714A2 Very low gain voltage-controlled oscillator
02/25/1998EP0824706A1 Method for automatically reducing orbit-received carrier acquisition and tracking thresholds
02/25/1998CN1174634A Steered frequency phase locked loop
02/25/1998CN1174459A Bit phase synchronizing method and bit phase synchronizing circuit
02/25/1998CN1037563C Phase lock loop with error measurement and correction in alternate periods
02/25/1998CN1037562C Phase lock loop with idle mode of operation during vertical blanking
02/25/1998CN1037561C Phase lock loop with error consistency detector
02/25/1998CN1037560C Oscillator with switched reactive elements
02/24/1998US5722052 Switching current mirror for a phase locked loop frequency synthesizer and communication device using same
02/24/1998US5721755 Serial transfer system
02/24/1998US5721570 Display control apparatus
02/24/1998US5721514 Digital frequency generation in atomic frequency standards using digital phase shifting
02/19/1998WO1998007272A1 Pll circuit for digital display device
02/18/1998EP0824290A1 Controllable-frequency oscillator
02/18/1998CN1173767A Digital phase correcting apparatus
02/17/1998US5719908 Digital/analog bit synchronizer
02/17/1998US5719827 Highly stable frequency generator
02/17/1998US5719532 Horizontal lock detector
02/17/1998US5719515 Digital delay line
02/17/1998US5719514 Delay circuit compensating for variations in delay time
02/17/1998US5719512 Digital oscillating circuit for multiple systems-ready television receivers
02/17/1998US5719511 Circuit for generating an output signal synchronized to an input signal
02/17/1998US5719508 Loss of lock detector for master timing generator
02/12/1998WO1998006180A1 A clock signal frequency multiplier
02/12/1998WO1998006179A1 Phase and frequency detector circuit
02/12/1998WO1998006173A1 Frequency lock indicator for fpll demodulated signal having a pilot
02/11/1998EP0823700A2 Digital syntesizer
02/11/1998EP0749646B1 A phase error processor circuit with a comparator input swapping technique
02/10/1998US5717730 Multiple monolithic phase locked loops
02/10/1998US5717403 Method and appartus for accurate frequency synthesis using global positioning system timing information
02/10/1998US5717362 Array oscillator circuit
02/10/1998US5717353 Clock signal generating circuit
02/05/1998WO1998005169A1 Synchronisation process
02/05/1998WO1998005126A1 Power-up detector for low power systems
02/05/1998CA2260867A1 Power-up detector for low power systems
02/04/1998EP0822664A2 System and method for synchronising data
02/04/1998EP0821846A1 An apparatus and method for using negative fm feedback in high quality oscillator devices
02/04/1998EP0546088B1 Frequency modulated synthesizer using low frequency offset mixed vco
02/04/1998CN1172323A Optical disc recording method and apparatus
02/04/1998CN1037248C Phase-Locked high frequency hot press
02/03/1998US5715286 Digital phase synchronous circuit and data receiving circuit including the same
02/03/1998US5714910 Methods and apparatus for digital frequency generation in atomic frequency standards
02/03/1998US5714908 Power correction method and circuit
02/03/1998US5714904 High speed serial link for fully duplexed data communication
02/03/1998US5714896 Fractional-N frequency divider system
01/1998
01/29/1998WO1998004074A1 Phase detector estimator
01/29/1998WO1998004063A2 A method and an apparatus for recovery of the clock of a constant bit-rate service
01/29/1998WO1998004043A1 High resolution digital synchronization circuit
01/29/1998WO1998004042A1 Digital phase locked loop
01/29/1998DE19644118A1 Frequency synthesiser for transmitter or receiver
01/28/1998EP0821515A2 A digital resolution translator
01/28/1998EP0821489A2 PLL circuit of display monitor
01/28/1998EP0821488A1 Device for frequency selection comprising a lock detector
01/28/1998EP0821487A1 PLL circuit with technology compensation
01/28/1998EP0821486A1 Clock circuit with master-slave synchronisation
01/28/1998CN1171653A Frequency synthesizer
01/28/1998CN1037222C Power saving frequency synthesizer with fast pull-in feature
01/27/1998US5712884 Data receiving method and circuit of digital communication system
01/27/1998US5712883 Clock signal distribution system
01/27/1998US5712882 Signal distribution system
01/27/1998US5712635 Digital to analog conversion using nonuniform sample rates
01/27/1998US5712602 Phase-locked oscillator for microwave/millimeter-wave ranges
01/27/1998US5712597 Rubidium atom oscillator with temperature stabilized frequency output
01/27/1998US5712596 Tunable crystal oscillator with harmonic output
01/27/1998US5712595 Apparatus and method of setting variable dividing ratio and apparatus using the same
01/27/1998US5712585 Sysem for distributing clock signals
01/27/1998US5712583 Clock phase alignment using frequency comparison
01/27/1998US5712582 Test signal generator having timing calibration circuit
01/21/1998EP0820146A2 Differential delay element to prevent common mode oscillation and input hysteresis
01/21/1998EP0820061A2 Playback apparatus and playback method
01/21/1998EP0795234A4 Steered frequency phase locked loop
01/21/1998EP0516617B1 High speed reflected impedance telemetry system for implantable device
01/21/1998CN1170898A System switching circuit based on phase matching
01/20/1998US5710983 Channel selecting system utilizing a random number generator having a shift register, switches and Boolean function circuit to randomly select a channel frequency
01/20/1998US5710720 Phase lock loop based system and method for decomposing and tracking decomposed frequency components of a signal, with application to vibration compensation system
01/20/1998US5710526 Phase-locked loop for signals having rectangular waveforms
01/20/1998US5710524 Clock synthesizer for low EMI applications
01/20/1998US5710517 Accurate alignment of clocks in mixed-signal tester
01/15/1998WO1998001952A1 Phase locked loop with improved phase-frequency detection
01/14/1998EP0818092A1 High speed synchronous digital data bus system having unterminated data and clock buses
01/14/1998EP0818081A1 Method and apparatus for controlling a fractional-n synthesizer in a time division multiple access system
01/14/1998CN1170303A Oscillator and phase-locked loop employing same
01/13/1998US5708687 Synchronized clock using a non-pullable reference oscillator
01/13/1998US5708396 Voltage controlled oscillator of a ring oscillator type that includes an odd number of delay units
01/13/1998US5708395 Frequency multiplying device and digitally-controlled oscillator
01/13/1998US5708394 Bridge-stabilized oscillator circuit and method
01/13/1998US5708383 Integrated circuit frequency controlled modulator for use in a phase lock loop
01/08/1998WO1998000938A1 Device and method for maintaining synchronization and frequency stability in a wireless telecommunication system
01/08/1998WO1998000920A1 A method of and an arrangement for controlling an oscillator
01/08/1998WO1998000919A1 Bridge-stabilized oscillator circuit and method
01/08/1998WO1998000917A1 Delay circuit and method
01/08/1998WO1998000056A1 Architecture for tdma medical telemetry system
01/08/1998DE19625970A1 Frequency stable PLL oscillator for electrical equipment
01/08/1998CA2253586A1 Bridge-stabilized oscillator circuit and method
01/07/1998EP0817389A1 A phase lock loop
01/07/1998EP0815648A1 Direct digital synthesizer driven pll frequency synthesizer with clean-up pll
01/07/1998EP0815647A1 Digital phase-locked loop utilizing a high order sigma-delta modulator
01/07/1998EP0549591B1 Phase locking circuit for jitter reduction in a digital multiplex system