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)
12/1987
12/02/1987EP0247891A2 Phase locked loop system
12/02/1987EP0247666A1 Amplifier arrangement
12/01/1987US4710647 Substrate bias generator including multivibrator having frequency independent of supply voltage
11/1987
11/25/1987EP0246530A2 Decoding system of data signals
11/25/1987EP0246269A1 Digital phase-frequency discriminator comprising simplified reset means.
11/19/1987EP0246135A1 Phase frequency detector and its use in a phase-locked loop
11/18/1987CN87101989A Frequency synthesizer of radio broadcast telephone system with multi-allotable frequency channels
11/17/1987US4707665 Low noise signal generator
11/17/1987US4707145 Electronic timepiece
11/17/1987US4707142 Master clock system for a parallel variable speed constant frequency power system
11/11/1987EP0244571A2 Low phase noise RF synthesizer
11/10/1987US4706043 Frequency standard using hydrogen maser
11/10/1987US4706040 Frequency synthesizer circuit
11/04/1987EP0244122A2 Clock recovery digital phase-locked loop
11/03/1987US4704722 Timing recovery circuit
11/03/1987US4704586 Bipolar bandwidth switch for use in a phase-locked loop
11/03/1987US4704585 Rapid frequency synthesizer apparatus and method
10/1987
10/27/1987US4703520 Radio transceiver having an adaptive reference oscillator
10/14/1987EP0240934A2 Digital frequency synthesizer
10/07/1987EP0240299A2 Bit synchronization circuit
10/07/1987EP0240232A2 Digital phase lock loop
10/06/1987US4698601 Phase locked loop
10/06/1987CA1227836C High speed phase locked loop
09/1987
09/30/1987EP0239413A2 Phase locked loop stabilization circuitry
09/30/1987EP0239412A2 Digital phase locked loop stabilization circuitry
09/29/1987US4697156 Digitally controlled variable frequency synthesizer
09/29/1987CA1227548A1 Active hyperfrequency filter
09/23/1987EP0238236A2 Improvements relating to magnetrons
09/23/1987EP0238041A2 Phase locked loop circuit
09/23/1987EP0237699A2 Method and circuit arrangement for the synchronization of a voltage-controlled oscillator inherent to a central exchange
09/23/1987CN86108384A Wide band frequency guiding and capturing method and device
09/22/1987US4695747 Apparatus increasing diode switching speeds
09/16/1987EP0236887A2 Microwave oscillator stabilized by a dielectric resonator
09/16/1987EP0236419A1 Phase changer.
09/15/1987US4694475 Frequency divider circuit
09/15/1987US4694339 Power line locked image processing systems
09/15/1987US4694327 Digital phase locked loop stabilization circuitry using a secondary digital phase locked loop
09/15/1987US4694326 Digital phase locked loop stabilization circuitry including a secondary digital phase locked loop which may be locked at an indeterminate frequency
09/15/1987US4694261 Integrated high gain voltage controlled oscillator
09/15/1987US4694259 Data tracking clock recovery system having media speed variation compensation
09/15/1987US4694204 Transistor circuit for signal multiplier
09/09/1987EP0235573A1 Circuit arrangement for generating a clock signal
09/09/1987EP0235441A2 Triggered frequency locked oscillator
09/08/1987US4692716 Method and a device for the frequency control of an atomic or molecular beam frequency standard
09/08/1987US4692715 Constant frequency signal generator circuit and method
09/08/1987US4692713 Read only memory control circuit for use in a phase lock loop
09/02/1987EP0234900A2 Phase detecting circuit
09/02/1987EP0234306A2 Oscillator with feedback loop including delay circuit
09/01/1987US4691356 AM/FM synchronizing circuit
09/01/1987US4691327 Clock regenerator
09/01/1987US4691176 Adaptive carrier tracking circuit
09/01/1987US4691175 Adaptive phase locked loop having a variable locking rate
09/01/1987US4691121 Oscillator circuit
08/1987
08/25/1987US4689626 Digital circuit for correcting phase shift of digital signal
08/25/1987US4689582 Phase-lock-loop circuit for a television apparatus
08/25/1987US4689581 Integrated circuit phase locked loop timing apparatus
08/25/1987US4689577 Circuit for synchronizing an oscillator to a pulse train
08/18/1987US4688237 Device for generating a fractional frequency of a reference frequency
08/18/1987US4688004 Frequency-changeable microwave signal generator having plural selectively operated oscillators
08/18/1987US4688003 Feed-forward error correction for sandaps and other phase-locked loops
08/11/1987US4686689 For receiving an input signal
08/11/1987US4686560 Phase locked loop system including analog and digital components
08/11/1987US4686488 Fractional N frequency synthesizer with modulation compensation
08/11/1987US4686482 Clock signal arrangement for regenerating a clock signal
08/11/1987US4686481 Phase detector apparatus including charge pump means
08/05/1987EP0230826A1 Digital synthesizer for high frequencies with an aperiodic correction optimising the spectral purity
08/04/1987US4684901 Automatic phase control circuit
08/04/1987US4684900 Optical pumping cesium resonator and laser diode detection
07/1987
07/29/1987EP0230338A2 Image processing system
07/28/1987US4683445 Synchronization method for deriving a reference signal from a pilot frequency
07/21/1987US4682124 Circuit including a DC-FM phase locked loop
07/21/1987US4682122 Frequency synthesizer stage adding high frequency steps to an initial frequency
07/21/1987US4682121 Phase discriminator and data standardizer
07/21/1987US4682116 High speed phase locked loop filter circuit
07/21/1987CA1224540A1 Frequency offset correcting circuit
07/16/1987WO1987004304A1 Variable capacitance circuit
07/15/1987EP0228433A1 Frequency dividing arrangements.
07/14/1987US4680780 For synchronizing a clock to a serial data stream
07/14/1987US4680621 Method and apparatus for variable phasing of periodic signals
07/14/1987US4680554 Real time network receiver system fast settling amplifier
07/08/1987EP0228021A2 Improvements to digital phase-locked loop circuits
07/07/1987US4679005 Phase locked loop with frequency offset
07/07/1987US4679004 Frequency synthesizer of a phase-locked type with a sampling circuit
07/07/1987US4678987 Feature extractor for quasi-periodic signals
07/01/1987EP0227172A1 Phase-locked loop coefficient generator for a filter arrangement having a non-rational ratio between input and output sampling frequencies
07/01/1987EP0227171A2 Oscillator control circuit for a colour television receiver or for a picture recording and reproducing apparatus
07/01/1987EP0226813A2 Synthesizer with a sum-compensation
06/1987
06/30/1987US4677648 Digital phase locked loop synchronizer
06/30/1987US4677394 Method and apparatus for calibrating an adjustable frequency generator
06/30/1987US4677322 Frequency comparator circuits
06/24/1987EP0225938A1 Method of operating a transmit-receive circuit, and apparatus therefor
06/23/1987US4675617 Stable voltage controlled oscillator
06/23/1987US4675612 Apparatus for synchronization of a first signal with a second signal
06/23/1987US4675558 Lock detector for bit synchronizer
06/19/1987DE3544622A1 Circuit arrangement for a digital PLL circuit with shortened lock-in period
06/18/1987WO1987003760A1 Frequency synthesiser
06/16/1987US4673892 Phase locked loop frequency synthesizer with battery saving circuit
06/16/1987US4673891 Frequency synthesizer having first phase locked loop frequency multiplied by near unity in second phase locked loop
06/16/1987EP0225512A1 Digital free-running clock synchronizer
06/10/1987EP0224884A2 Clock circuit synchronization
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