| Patents for H03L 7 - Automatic control of frequency or phase; Synchronisation (37,643) |
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| 09/25/2013 | CN103329441A LO generation and distribution in a multi-band transceiver |
| 09/25/2013 | CN103329440A Phase-frequency detection method |
| 09/25/2013 | CN103326720A 原子振荡器 Atomic oscillator |
| 09/25/2013 | CN103326719A Voltage controlled crystal oscillating device used in atomic frequency standard |
| 09/25/2013 | CN103326718A Radio frequency chain of rubidium frequency scale |
| 09/25/2013 | CN103326717A Rubidium clock scanning and capturing auxiliary locking method |
| 09/25/2013 | CN103326716A Clock synchronization system |
| 09/25/2013 | CN103326715A Single-end voltage-controlled oscillator with low intrinsic jitter |
| 09/25/2013 | CN103326714A Digital control oscillator and method, system and detector for hardware performance detection |
| 09/25/2013 | CN103326713A Method and circuit for protecting multi-voltage-domain power adjustable voltage-controlled oscillator |
| 09/25/2013 | CN102195643B PLL apparatus |
| 09/25/2013 | CN102064823B Hysteresis nonlinear state machine with overlapping thresholds for automatic frequency control |
| 09/25/2013 | CN102017422B VCO capacitor bank trimming and calibration |
| 09/24/2013 | US8542552 DLL circuit, frequency-multiplication circuit, and semiconductor memory device |
| 09/24/2013 | US8542068 Oscillator with highly-adjustable bang-bang control |
| 09/24/2013 | US8542067 Oscillation circuit and image display device |
| 09/24/2013 | US8542044 Semiconductor integrated circuit and method for driving the same |
| 09/24/2013 | US8542043 High speed DLL offset cancellation |
| 09/24/2013 | US8542042 Phase-locked loop architecture and clock distribution system |
| 09/24/2013 | US8542041 Semiconductor device and system |
| 09/24/2013 | US8542003 Test apparatus to test a data signal and a clock signal output from a device under test |
| 09/24/2013 | CA2477028C Wireless transmit-only apparatus and method |
| 09/19/2013 | WO2013137863A1 Clock and data recovery having shared clock generator |
| 09/19/2013 | WO2013136766A1 Voltage controlled oscillator, signal generating apparatus, and electronic apparatus |
| 09/19/2013 | US20130243113 Generating and routing a sub-harmonic of a local oscillator signal |
| 09/19/2013 | US20130241613 I/o circuit with phase mixer for slew rate control |
| 09/19/2013 | US20130241612 Apparatus and methods for adjusting phase-locked loop gain |
| 09/19/2013 | US20130241611 Frequency generator for radiofrequency equipment and method for generating an output signal |
| 09/19/2013 | US20130241610 Pll circuit, method of controlling pll circuit, and digital circuit |
| 09/19/2013 | US20130241608 High speed, wide frequency-range, digital phase mixer and methods of operation |
| 09/19/2013 | US20130241607 Phase locked loop and phase comparison method |
| 09/19/2013 | US20130241600 Random spread spectrum modulation |
| 09/18/2013 | EP2638407A1 Methods and systems for production testing of dco capacitors |
| 09/18/2013 | CN203206216U Fractional-N phase-locked loop |
| 09/18/2013 | CN203206215U Circuit capable of reducing changes of output frequency of voltage-controlled oscillator effectively |
| 09/18/2013 | CN203206214U Clock generator and switched capacitor circuit containing the same |
| 09/18/2013 | CN103313000A Infrared monitor video wireless transmission device based on phase locked loop control |
| 09/18/2013 | CN103312325A Frequency synthesizer |
| 09/18/2013 | CN103312324A Method and system for generating short-waveband signal |
| 09/18/2013 | CN103312323A Quickly optimizing automatic frequency calibration circuit and algorithm |
| 09/18/2013 | CN103312322A Local oscillator circuit and local oscillation signal generation method |
| 09/18/2013 | CN103312321A Bandwidth adjusting method, adjusting device, phase-locked loop circuit, and electronic device |
| 09/18/2013 | CN103312320A VCO capacitor bank trimming and calibration |
| 09/18/2013 | CN103312319A Spurious suppression phase frequency detector circuit applied to integer fractional frequency phase-locked loop |
| 09/18/2013 | CN103312318A High-accuracy phase frequency detector |
| 09/18/2013 | CN103312317A Delay phase-lock loop capable of being locked quickly |
| 09/18/2013 | CN103312316A Frequency generating system |
| 09/18/2013 | CN103308076A Frequency to voltage (F-V) converting circuit |
| 09/18/2013 | CN102799101B Physical system device for chip coherent population trapping (CPT) atomic clock |
| 09/18/2013 | CN102497205B Improved DDS signal generator and signal generating method |
| 09/18/2013 | CN102427366B Device and method for precisely combining multiple frequency sources of beidou terminal module |
| 09/18/2013 | CN102394642B Phase-locked loop type frequency synthesizer and radio frequency program-controlled frequency divider |
| 09/18/2013 | CN102315848B Analog voltage control oscillation circuit and method for controlling same |
| 09/18/2013 | CN102089981B Automatic synchronization of an internal oscillator to an external frequency reference |
| 09/18/2013 | CN102088287B Clock signal generating device, electronic device and PLL control device |
| 09/18/2013 | CN101849359B Phase locked loop |
| 09/17/2013 | US8537957 Clock synchroniser |
| 09/17/2013 | US8536932 Temperature compensation circuit |
| 09/17/2013 | US8536916 Digitally controlled oscillator with thermometer sigma delta encoded frequency control word |
| 09/17/2013 | US8536915 Low-noise and low-reference spur frequency multiplying delay lock-loop |
| 09/17/2013 | US8536914 DLL including 2-phase delay line and duty correction circuit and duty correction method thereof |
| 09/17/2013 | US8536913 Transition time lock loop with reference on request |
| 09/17/2013 | US8536912 Phase locked loop |
| 09/17/2013 | US8536911 PLL circuit, method of controlling PLL circuit, and digital circuit |
| 09/17/2013 | US8536910 System and method for reducing power consumption in a phased-locked loop circuit |
| 09/17/2013 | US8536909 Power good signal generating circuit |
| 09/17/2013 | US8536907 Power on reset signal generating apparatus and method |
| 09/17/2013 | US8536819 Power supply device |
| 09/12/2013 | WO2013133933A1 Electronic device with dynamic noise spectrum control |
| 09/12/2013 | US20130234802 Method and apparatus for drift compensation in pll |
| 09/12/2013 | US20130234800 Calibration device for oscillator and method thereof |
| 09/12/2013 | US20130234767 3d integrated circuit stack-wide synchronization circuit |
| 09/12/2013 | US20130234764 Phase synchronization circuit for ac voltage |
| 09/11/2013 | EP2636179A1 Method and digital circuit for recovering a clock and data using a digital frequency detection |
| 09/11/2013 | CN203193610U Frequency reproduction device for atomic clock |
| 09/11/2013 | CN103297047A Atomic frequency standard and servo locking method |
| 09/11/2013 | CN103297046A Phase-locked loop and method and circuit for producing clock thereof |
| 09/11/2013 | CN103297045A High sensitivity single antenna FMCW radar |
| 09/11/2013 | CN103297044A Microwave signal source and method for producing microwave signal |
| 09/11/2013 | CN103297043A 压控振荡电路 Voltage controlled oscillator circuit |
| 09/11/2013 | CN103297042A Charge pump phase-locked loop circuit capable of performing locking fast |
| 09/11/2013 | CN103297041A Phase-locked loop |
| 09/11/2013 | CN103297040A All digital phase locked loop and method of controlling the same |
| 09/11/2013 | CN103297039A Digital phase lock loop and method thereof |
| 09/11/2013 | CN103297038A Oscillation frequency regulating circuit, semiconductor device, electronic device and oscillation frequency regulation method |
| 09/11/2013 | CN102497202B Digital phase-shift circuit and improved AC (Alternating Current) power source thereof |
| 09/11/2013 | CN102404005B Frequency band switching method and frequency band switching system for phase-locked loop |
| 09/11/2013 | CN102347762B Locking detection circuit of phase-locked loop circuit |
| 09/11/2013 | CN101860365B 参考时钟源切换方法及装置 Reference clock source switching method and apparatus |
| 09/11/2013 | CN101449507B Clock recovering device and method for clock recovery |
| 09/10/2013 | US8533247 Arrangement for generating poly-phase sequences |
| 09/10/2013 | US8531604 Synchronization signal generating device and display apparatus |
| 09/10/2013 | US8531246 Direct digital interpolative synthesis |
| 09/10/2013 | US8531245 Temperature compensation in a PLL |
| 09/10/2013 | US8531244 High frequency signal processing device |
| 09/10/2013 | US8531222 Phase locked loop circuit with selectable feedback paths |
| 09/10/2013 | US8531221 Delay lock loop circuit and method |
| 09/10/2013 | US8531220 Loop filter |
| 09/10/2013 | US8531219 Phase locked loop with digital compensation for analog integration |
| 09/10/2013 | US8531218 Frequency generating system |