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)
11/1999
11/16/1999US5986486 Circuits and methods for a phase lock loop for synchronous reference clocks
11/16/1999US5986485 Auto-lock circuit guaranteeing low jitter in phase-locked loop frequency synthesizers irrespective of process variations
11/16/1999US5986482 Input circuit of counter circuit, and integrated circuit for frequency synthesizer using the same
11/11/1999WO1999057929A1 Gsm cellular telephone and gps receiver combination
11/11/1999WO1999057814A2 Phase frequency detector having instantaneous phase difference output
11/11/1999WO1999057811A1 Digital waveform shaping circuit, frequency multiplying circuit, external-synchronizing circuit, and external-synchronizing method
11/11/1999WO1999044287A3 A communication device with phase continuous synchronisation to an external network
11/10/1999EP0760954A4 Phase noise detector
11/10/1999CN1234925A Control of voltage controlled oscillator
11/10/1999CN1234924A Receiver with phase-locked loop
11/10/1999CN1234653A Power-consumption reduced over-sampling clock restore circuit
11/09/1999US5983088 Wide frequency spectrum television tuner with single local oscillator
11/09/1999US5983082 Phase quadrature signal generator having a variable phase shift network
11/09/1999US5983077 Systems and methods for automatic deviation setting and control in radio transmitters
11/09/1999US5983070 Method and system providing increased antenna functionality in a RF distribution system
11/09/1999US5982840 Swallow counter with modulus signal output control
11/09/1999US5982836 Phase synchronizer and data reproducing apparatus
11/09/1999US5982835 Digital processing phase lock loop for synchronous digital micro-wave apparatus
11/09/1999US5982834 Clock recovery system for high speed small amplitude data stream
11/09/1999US5982833 Method and apparatus for attenuating jitter in a digital transmission line
11/09/1999US5982832 Apparatus and method for compensating for timing and phase error using a poly-phase filter
11/09/1999US5982812 Method and apparatus for monitoring frequency synthesizer locking time
11/09/1999US5982724 Disk reproducing apparatus having active wide-range PLL device
11/09/1999US5982242 Circuit for synchronizing transmission local oscillating frequencies in digital microwave system
11/09/1999US5982239 Phase locked loop circuit and a picture reproducing device
11/09/1999US5982238 Clock signal distribution and synchronization in a digital system
11/09/1999US5982237 Digital clock recovery loop
11/09/1999US5982213 Digital phase lock loop
11/09/1999US5982212 Delay difference adjustment circuit and phase adjuster
11/09/1999US5982210 PLL system clock generator with instantaneous clock frequency shifting
11/09/1999US5982209 Clock circuit and corresponding method for generating and supplying a clock signal to electronic devices
11/09/1999US5982208 Clock multiplier having two feedback loops
11/09/1999US5982200 Costas loop carrier recovery circuit using square-law circuits
11/09/1999CA2198487C Method of programming a frequency synthesizer and a radio having a frequency synthesizer
11/09/1999CA2105106C Phase-offset cancellation technique for reducing low frequency jitter
11/04/1999WO1999056395A1 Method for regulating an oscillator and regulating system
11/04/1999WO1999056393A1 Method and apparatus for varying a clock frequency on a phase by phase basis
11/04/1999DE19819541A1 Clock signal recovery method for base station of radio communication system
11/04/1999DE19816656A1 Frequency generating method for television receiver tuner
11/03/1999EP0954105A1 Phase locked loop with fractional division
11/03/1999EP0954104A1 Phase locked loop comprising an analog phase comparator and a digital filter
11/03/1999EP0954103A1 Delay locked loop and method of operation
11/03/1999EP0953242A2 Symbol lock detector
11/02/1999US5978427 Phase-locked loop circuit having a lock state detecting function
11/02/1999US5978426 Phase locked loop system and method for use in a data channel
11/02/1999US5978425 Hybrid phase-locked loop employing analog and digital loop filters
11/02/1999US5977838 High-speed phase-locked loop circuit
11/02/1999US5977837 Phase selector for external frequency divider and phase locked loop
11/02/1999US5977836 Method and apparatus for controlling an output frequency of a phase locked loop
11/02/1999US5977806 PLL circuit with reduced response variance due to manufacturing variations
11/02/1999US5977805 Frequency synthesis circuit tuned by digital words
11/02/1999US5977804 Digital synthesizer
11/02/1999US5977801 Self-resetting phase/frequency detector with reduced dead zone
11/02/1999CA2139904C Pll synthesizer and method of controlling the same
10/1999
10/28/1999WO1999055000A2 Differential receiver using a delay lock loop to compensate skew
10/28/1999WO1999054999A1 Using asynchronous fifo contol rings for synchronous systems
10/28/1999DE19918047A1 Frequency comparator for phase locked loop circuit
10/28/1999CA2329233A1 Skew-insensitive low voltage differential receiver
10/27/1999EP0952670A1 PLL circuit
10/27/1999EP0952669A1 Phase comparison circuit
10/27/1999EP0952568A1 Process of clock recovery during the sampling of digital-type signals
10/27/1999EP0795234B1 Steered frequency phase locked loop
10/27/1999CN1233111A Over-sampling type clock recovery circuit using majority determination
10/26/1999US5974584 Parity checking in a real-time digital communications system
10/26/1999US5974560 Information processor and information processing system utilizing clock signal
10/26/1999US5974105 High frequency all digital phase-locked loop
10/26/1999US5974097 Method and apparatus for receiving a data signal and a digital filter circuit
10/26/1999US5973572 Phase lock loop circuit with variable loop gain
10/26/1999US5973571 Semiconductor integrated circuit having a phase locked loop
10/26/1999US5973570 Band centering frequency multiplier
10/26/1999US5973525 Integrated circuit device
10/26/1999US5973524 Obtaining accurate on-chip time-constants and conductances
10/21/1999DE19817436A1 Arrangement for transmitting data between a central data processor and one or more peripherals
10/20/1999EP0951137A2 Synthesized stable local oscillator
10/20/1999CN1232582A Frequency synthesizer having phase error feedback for waveform selection
10/20/1999CN1232319A Over-sampling type clock recovery circuit with power consumption reduced
10/19/1999US5970110 Precise, low-jitter fractional divider using counter of rotating clock phases
10/19/1999US5970106 Phase locked loop having a phase/frequency comparator block
10/19/1999US5969894 Method for detecting data encoded as state transitions in a read signal
10/19/1999US5969576 Phase locked loop lock condition detector
10/19/1999US5969553 Digital delay circuit and digital PLL circuit with first and second delay units
10/19/1999US5969552 Dual loop delay-locked loop
10/19/1999US5969551 Clock generator having DLL and semiconductor device having clock generator
10/14/1999WO1999052221A1 Rf architecture for cellular dual-band telephones
10/14/1999WO1999052215A1 Phase-locked loop
10/14/1999WO1999052214A2 Communications device
10/14/1999DE19812972A1 Operational amplifier integrator circuit e.g. for use as low pass filter in PLL-synthesizer locked loop
10/14/1999DE19581471C2 Synthesizer mit einstellbarer Frequenz Synthesizer with adjustable frequency
10/14/1999CA2326519A1 Phase-locked loop
10/13/1999EP0949760A1 Pulse delay circuit with variable delay time
10/13/1999EP0806082B1 Wide frequency spectrum television tuner with single local oscillator
10/13/1999CN1231781A PLL frequency synthesizer and method for controlling the PLL frequency synthesizer
10/13/1999CN1231548A Digital phase-locking loop capable of inhibiting dither
10/12/1999US5966417 Cycle alignment circuit for multicycle time systems
10/12/1999US5966416 Verification of PN synchronization in a spread-spectrum communications receiver
10/12/1999US5966055 Phase-shift modulation of a direct antenna-driving VCO
10/12/1999US5964884 Self-timed pulse control circuit
10/12/1999US5964880 Circuit interface synchronization using slave variable delay loop
10/12/1999CA2105233C Digital phase comparator and phase-locked loop
10/06/1999EP0948138A1 Frequency synthesiser
1 ... 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 ... 377