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)
11/1997
11/04/1997US5684805 Microwave multiphase detector
11/04/1997US5684795 Method and apparatus for controlling a fractional-N synthesizer in a time division multiple access system
11/04/1997US5684434 Erasable and programmable single chip clock generator
11/04/1997US5684421 Compensated delay locked loop timing vernier
11/02/1997CA2204275A1 Digital phase lock loop for clock signal recovery
10/1997
10/30/1997WO1997040590A1 Distribution of radio-frequency signals through low bandwidth infrastructures
10/30/1997WO1997040586A1 Transmit sequencing
10/30/1997WO1997040580A1 Frequency synthesizer with temperature compensation and frequency multiplication and method of providing the same
10/30/1997WO1997040576A1 Frequency multiplier
10/30/1997DE19620563C1 Method of synchronous demodulation of amplitudemodulated input signal with defined carrier frequency
10/29/1997EP0803997A2 A method and arrangement for producing a clock frequency in a radio device
10/29/1997EP0803985A2 Carrier frequency generator
10/29/1997EP0803984A2 Phase-locked loops
10/29/1997EP0803875A2 Clock control circuit
10/29/1997EP0803865A1 Tracking error signal generating circuit
10/29/1997EP0803116A1 A harmonic and frequency-locked loop pitch tracker and sound separation system
10/28/1997US5682112 Phase locked loop control apparatus
10/23/1997WO1997039530A1 High-speed and high-precision phase locked loop
10/23/1997WO1997039529A1 A digital audio resolving apparatus and method
10/23/1997CA2251091A1 A digital audio resolving apparatus and method
10/22/1997EP0801848A2 Frequency synthesizer
10/22/1997CN1163027A Dual-mode satellite/cellular phone with a frequency synthesizer
10/22/1997CN1162871A PLL circuit and noise reduction means for PLL circuit
10/21/1997US5680076 Phase-lock indicator circuit with phase-only detection
10/21/1997US5680067 Frequency dividing device
10/15/1997EP0800724A1 Lamp oscillator for atomic frequency standards
10/15/1997CN1162219A Phase-locked loop circuit
10/15/1997CA2202687A1 Frequency synthesis in a radio communications transceiver
10/14/1997US5677802 Phase locked loop circuit with adjustable offset characteristic, method for adjustment and apparatus
10/14/1997US5677743 Apparatus and method for synchronizing a horizontal deflection signal with a horizontal sync signal
10/14/1997US5677737 Video compression for wide screen television
10/14/1997US5677648 Noise compensated phase locked loop circuit
10/14/1997CA2081863C Ripple-free phase detector using two sample-and-hold circuits
10/12/1997CA2049582A1 Frequency synthesizer with a phase-locked loop with multiple fractional division
10/09/1997WO1997037437A1 Frequency tracking for communication signals using m-ary orthogonal walsh modulation
10/09/1997WO1997037432A1 Portable radio comprising a connectable circuit
10/09/1997WO1997023047A3 Discrete phase locked loop
10/08/1997EP0800283A2 Transmitter/receiver for transmitting and receiving of an RF signal in two frequency bands
10/08/1997EP0800276A1 A frequency multiplying circuit having a first stage with greater multiplying ratio than subsequent stages
10/08/1997EP0800275A1 A frequency multiplier using a voltage controlled delay circuit
10/08/1997EP0800274A2 PLL circuit
10/08/1997EP0800263A1 Drive system for a brushless motor employing predefined profiles of driving currents stored in a nonvolatile memory
10/08/1997EP0702862B1 Process for enhancing the noise immunity of a phase-locked loop and device for applying same.
10/08/1997CN1161605A Communication apparatus
10/07/1997US5675620 High-frequency phase locked loop circuit
10/07/1997US5675584 High speed serial link for fully duplexed data communication
10/07/1997US5675292 Phase lock loop enabling smooth loop bandwidth switching over a wide range
10/07/1997US5675291 Control signal generation circuit
10/07/1997US5675284 Frequency lock indicator for FPLL demodulated signal having a pilot
10/07/1997US5675274 Semiconductor clock signal generation circuit
10/07/1997US5675273 Clock regulator with precision midcycle edge timing
10/02/1997WO1997036375A1 Transmit clock generation system and method
10/01/1997EP0798862A1 Charge pump circuit for use in a phase locked loop
10/01/1997EP0798861A1 Phase synchronization system
10/01/1997EP0798849A1 Circuit and method for correcting phase error in a multiplier circuit and quadrature generating circuit
10/01/1997EP0797870A1 Cmos voltage-controlled oscillator having a wide frequency range
10/01/1997CN1160955A Synchronization device for digital communications
09/1997
09/30/1997US5673008 Voltage-controlled oscillator and PLL circuit exhibiting high-frequency band operation, linear frequency characteristics, and power-source variation immunity
09/30/1997US5673007 Frequency synthesizer having PLL receiving filtered output of DDS
09/30/1997US5673006 Seamless switch-over frequency synthesizer
09/30/1997US5673005 Time standard circuit with delay line oscillator
09/30/1997US5673004 Method and circuit for controlling digital processing phase-locked loop for network synchronization
09/25/1997WO1997035394A1 Wideband tracking digital locked loop
09/25/1997WO1997035382A1 Phase-locked loop switchable between a high and a low bandwidth
09/25/1997DE19611219A1 Phasenregelschleife mit umschaltbarer Schleifenbandbreite Phase-locked loop with switchable loop bandwidth
09/24/1997EP0797325A2 Receiver with data frame buffering
09/24/1997EP0796524A1 Digital data phase detector
09/24/1997EP0796523A2 Comparator with smooth start-up for high frequencies
09/24/1997EP0766892A4 Apparatus and method for clock alignment and switching
09/24/1997CN2263417Y Accompanying sound phase locked frequency stabilizer
09/24/1997CN1160309A Tuning circuit structure of phase locked loop
09/23/1997US5671257 Symbol timing recovery based on complex sample magnitude
09/23/1997US5671201 Pulling-in circuit for PLL circuit, pulling-in method for PLL circuit, PLL circuit device and apparatus for reproducing optical disc
09/23/1997US5670914 Miniature atomic frequency standard
09/23/1997US5670913 Phase locked loop circuit with false locking detector and a lock acquisition sweep
09/23/1997US5670903 Clock signal distribution circuit having a small clock skew
09/23/1997US5670869 Regulated complementary charge pump with imbalanced current regulation and symmetrical input capacitance
09/18/1997WO1997034162A1 Method for automatically reducing orbit-received carrier acquisition and tracking thresholds
09/18/1997DE19709770A1 Phase equalising or locking of output signal to input signal
09/17/1997EP0795962A2 Synthesized oscillation circuit
09/17/1997EP0795955A2 Phase error signal generator
09/17/1997EP0795234A1 Steered frequency phase locked loop
09/17/1997CN1159700A Intermediate frequency signal processing circuit
09/17/1997CN1159586A Method of measuring delay time and random pulse train generating circuit used in such method
09/16/1997US5668826 Electro-optical device comprising a controlled laser diode
09/16/1997US5668504 Frequency synthesizer
09/16/1997US5668503 System and method for calibrating damping factor or analog PLL
09/16/1997US5668498 Method of demodulating a digital signal
09/12/1997WO1997033374A1 Process and device for generating a plurality of derived clock signals
09/11/1997DE19608666A1 Verfahren und Anordnung zur Ableitung von mehreren Taktsignalen Method and apparatus for deriving a plurality of clock signals
09/10/1997EP0794610A1 Constant high Q voltage controlled oscillator and method for making same
09/10/1997EP0794609A1 An integrated circuit with automatic compensation for deviations of the capacitances from nominal values
09/10/1997CN1159111A Clock generating circuit and method for exchange system
09/09/1997US5666388 Clock recovery circuit with matched oscillators
09/09/1997US5666387 Signal processing device having PLL circuits
09/09/1997US5666341 Data detection apparatus
09/09/1997US5666088 Method for reducing short-term instability of the output frequency
09/09/1997US5666084 Multi-level demodulator and VCO circuit
09/04/1997WO1997032416A1 Digital phase lock loop and system for digital clock recovery
09/04/1997WO1997032392A1 Method and apparatus for determining the change in frequency of a reference signal
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