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)
02/1993
02/24/1993EP0474729A4 Voltage control oscillator with automatic current control
02/24/1993CN1069371A Phase locking method for high power radio frequency equipments
02/24/1993CN1069223A Phase-locked high frequency hot press
02/23/1993US5189379 Pulse width detecting circuit and PLL synthesizer circuit using the same
02/23/1993CA1313763C Time reference device havingan approximately constant stability for short and long term time measurements
02/18/1993WO1993003545A1 Phase synchronizing circuit
02/17/1993EP0527603A2 PLL synthesizer circuitry
02/16/1993US5187722 Reducing phase jitter in a circuit
02/10/1993EP0527034A2 Digital phase-locked loop circuit
02/09/1993US5185761 Gps receiver
02/09/1993US5185584 Phase locked loop (PLL) circuit having enhanced frequency selection range
02/09/1993US5185583 Actively biased oscillator
02/09/1993US5185540 Adjustable time constant circuit with constant capacitance and variable resistance
02/09/1993CA1313544C2 Rapidly converging phase-locked loop with a quadrant sensitive phase step size
02/04/1993WO1993002525A1 Clock signal generator for a digital television receiver
02/04/1993DE4222105A1 Swept RF and microwave frequency synthesised source
02/03/1993WO1993003540A1 Oscillator circuit die on ceramic substrate
02/03/1993EP0526359A1 Process and circuit arrangement for synchronising a signal
02/03/1993EP0526227A2 Phase-locked loop
02/03/1993EP0526202A2 Local oscillating frequency synthesizer for use in a TDMA system
02/03/1993EP0526074A2 Atomic clock RF chain
02/03/1993EP0526073A2 Atomic clock system with improved servo system
02/03/1993EP0525963A2 Generation of a clock frequency in a smart card interface
02/03/1993EP0525798A2 Integrated-circuit sampled-and-hold phase detector with integrated current setting resistor
02/02/1993US5184350 Telephone communication system having an enhanced timing circuit
02/02/1993US5184093 Frequency synthesizer
02/02/1993US5184092 Phase-locked loop frequency tracking device including a direct digital synthesizer
02/02/1993US5184091 Circuit for phase locking an oscillator within any one of a plurality of frequency ranges
02/02/1993US5184028 For providing an output voltage at an output terminal
01/1993
01/26/1993US5182761 Data transmission system receiver having phase-independent bandwidth control
01/26/1993US5182528 Frequency synthesizer having microcomputer supplying analog and digital control signals to VCO
01/21/1993WO1993001657A1 Multi-loop synthesizer
01/20/1993EP0523953A1 Digital testing techniques for very high frequency phase-locked loops
01/20/1993EP0523887A1 Digital serial loop filter for high speed control systems
01/20/1993EP0523886A1 Phase error processor
01/20/1993EP0523885A1 Phase detector for very high frequency clock and data recovery circuits
01/20/1993EP0523854A2 Voltage controlled oscillator
01/20/1993EP0523777A1 Arrangement comprising a phase-locked loop
01/19/1993US5181115 Digital phase-locked loop
01/19/1993US5180993 Method and arrangement for frequency synthesis
01/19/1993US5180992 Pll frequency synthesizer having a power saving circuit
01/19/1993US5180991 Frequency adjustable RC oscillator
01/19/1993US5180933 Programmable digital out-of-lock detector
01/19/1993CA1312929C Analog macro embedded in a digital gate array
01/13/1993EP0522879A2 Phase locked oscillator
01/13/1993EP0521859A1 Direct digital synthesizer driven phase lock loop frequency synthesizer with hard limiter.
01/12/1993US5179438 Pulse signal delay device, and pulse signal phase detector and clock generator using the device
01/12/1993US5179358 Circuit, counter and frequency synthesizer with adjustable bias current
01/12/1993US5179303 Signal delay apparatus employing a phase locked loop
01/07/1993EP0521646A1 Method and apparatus for synchronising a data stream with clock signals used for reading the data stream
01/05/1993US5177741 Subscriber unit for wireless digital telephone system
01/05/1993US5177449 Radio frequency amplifier circuit
12/1992
12/30/1992EP0520678A2 Image-rejecting phase detector
12/30/1992EP0520590A1 Circuit for frequency synthesis
12/30/1992EP0520558A1 Phase locked loop and digital phase comparator for use in a phase-locked loop
12/30/1992EP0419618A4 Bit synchronizer
12/29/1992WO1993000747A1 Automatic frequency control by an adaptive filter
12/29/1992US5175884 Voltage controlled oscillator with current control
12/29/1992US5175729 Radio with fast lock phase-locked loop
12/29/1992US5175626 Apparatus providing a clock signal for a digital television receiver in response to a channel change
12/29/1992US5175512 High speed, power supply independent CMOS voltage controlled ring oscillator with level shifting circuit
12/29/1992US5175511 Phase-locked loop synthesizer for use in tdm communications system
12/29/1992US5175510 Loop filter for a frequency synthesizer
12/23/1992EP0519892A2 A multi-loop controlled VCO
12/23/1992EP0519739A1 Edge integrating phase detector
12/23/1992EP0519601A1 Microwave synthesisers
12/23/1992EP0519562A2 Phase-locked loop receiver
12/23/1992EP0516617A4 High speed reflected impedance telemetry system for implantable device
12/22/1992US5173665 Pll frequency synthesizer capable of changing an output frequency at a high speed
12/22/1992US5173664 Phase locked loop having constant gain for recovering clock from non-uniformly spaced data
12/22/1992US5173663 Demodulation circuit enabling independent recovery of the carrier and sampling timing
12/22/1992US5173617 Digital phase lock clock generator without local oscillator
12/20/1992CA2067593A1 Edge integrating phase detector
12/17/1992DE4119452A1 Phase locked loop circuit with count phase discriminator - uses output pulse ratio to control regulating voltage for voltage-controlled oscillator
12/16/1992EP0518729A1 Control device for a phase locked loop with frequency changing means
12/16/1992EP0518684A2 Phase-locked loop having charge pump driven with preserved energy for instant channel switching
12/16/1992EP0487548A4 Synthesized selective call receiver having variable characteristics
12/15/1992US5172231 S-band video signal transmitter
12/15/1992CA1311533C Process and circuit arrangement for digital control of the frequency and/or phase of scanning clock pulses
12/14/1992CA2071113A1 Phase-locked loop having charge pump driven with preserved energy for instant channel switching
12/10/1992WO1992022171A1 Method and apparatus for detecting a sequence of clock reference pulses
12/10/1992WO1992022140A1 Digital-to-analog converter-preamplifier apparatus
12/10/1992DE4118591A1 Porch frequency phase locked loop for video demodulation - uses frequency present in porch region of video signal to generate voltage controlled oscillator tuning signal
12/10/1992CA2110385A1 Digital-to-analog converter - preamplifier apparatus
12/09/1992EP0517431A1 Circuit and method of switching between redundant clocks for a phase lock loop
12/09/1992EP0517216A2 Signal generator having switching function
12/09/1992EP0516624A1 Multiloop synthesizer with optimal spurious performance
12/09/1992EP0516617A1 High speed reflected impedance telemetry system for implantable device
12/08/1992US5170297 Current averaging data separator
12/08/1992US5170135 Phase and frequency-locked loop circuit having expanded pull-in range and reduced lock-in time
12/08/1992US5170130 Phase lock loop circuit with a subsidiary loop filter
12/08/1992US5170046 Data transfer system
12/06/1992WO1992022147A1 Radio with fast lock phase-locked loop
12/06/1992CA2102496A1 Radio with fast lock phase-locked loop
12/02/1992EP0516379A2 Digital voltage-controlled oscillators
12/02/1992EP0515376A1 Process and device for beat recovery.
12/01/1992US5168360 Sampling clock generating circuit for a-d conversion of a variety of video signals
12/01/1992US5168247 Oscillator and voltage-to-frequency coverter employing the same
12/01/1992US5168246 Error amplifier for multiple frequency oscillator control
12/01/1992US5168245 Monolithic digital phaselock loop circuit having an expanded pull-in range
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