Patents
Patents for H03J 7 - Automatic frequency control; Automatic scanning over a band of frequencies (3,745)
02/2011
02/01/2011US7881676 Radio-frequency communication control system, radio-frequency communication control method and computer-readable storage medium
01/2011
01/26/2011EP2179506B1 Correlation-driven adaptation of frequency control for a rf receiver device
01/26/2011EP1108223B1 Method and apparatus for acquiring satellite positioning system signals
01/26/2011EP0880713B2 Combined gps positioning system and communications system utilizing shared circuitry
01/25/2011US7877105 Method and arrangement for frequency synchronization of a mobile station with a base station in a mobile communication system
01/19/2011EP2275832A2 Device and method for determining position information of a SPS receiver having a cell based communication receiver
01/18/2011US7873826 Routing voice over internet (VoIP) call
01/12/2011EP2273703A1 Digital coherent receiving apparatus
01/04/2011CA2406716C Method and apparatus for compensating local oscillator frequency error
12/2010
12/29/2010WO2010151624A1 System and transceiver clocking to minimize required number of reference sources in multi-function cellular applications including gps
12/29/2010EP2267920A2 An improved mobile GPS receiver
12/28/2010US7860470 Cross coupled high frequency buffer
12/23/2010DE102010029363A1 Funkwellenempfänger Radio wave receiver
12/22/2010CN101924534A Monotonous debugging method of digital control capacitance switch array of crystal oscillator
12/15/2010EP2262249A1 Blind scan apparatus and blind scan method for use in digital video broadcast system
12/15/2010CN101083730B Receiver apparatus
12/09/2010DE19910415B4 Verfahren und Vorrichtung zum Abstimmen eines ersten Oszillators mit einem zweiten Oszillator Method and apparatus for tuning a first oscillator with a second oscillator
12/09/2010DE102010029305A1 Funkwellenempfänger Radio wave receiver
12/07/2010US7848778 Method and apparatus for adjusting reference oscillator frequency in a mobile wireless device
12/07/2010US7848719 Ultra-wideband variable-phase ring-oscillator arrays, architectures, and related methods
11/2010
11/24/2010CN101897125A Method and apparatus for detecting a frequency band and mode of operation
11/23/2010US7840199 Variable-phase ring-oscillator arrays, architectures, and related methods
11/18/2010WO2010132031A1 Method and circuit for automatic tuning of an antenna circuit
11/17/2010CN101889393A Apparatus and methods for frequency control in a multi-output frequency synthesizer
11/17/2010CN101888685A Automatic channel selection module for radio and channel selection method thereof
11/11/2010WO2010103395A8 Synchronization and acquisition for mobile television reception
11/02/2010US7827430 Integrated circuit with interpolation to avoid harmonic interference
11/02/2010US7826577 Method for frequency acquisition of a mobile communications device
11/02/2010US7825743 Systems and methods for tuning filters
10/2010
10/26/2010CA2401180C A modulation scheme for fdd/tdd transceivers
10/21/2010WO2010118596A1 Method and device for correcting frequency offset
10/19/2010US7817965 Scanner with auxiliary non-volatile memory
10/06/2010EP1055326B1 Method and apparatus for searching channels
09/2010
09/30/2010WO2010109978A1 Rf tag reader circuit
09/30/2010US20100248670 Direct conversion rf transceiver for wireless communication
09/29/2010EP2232716A1 Method and apparatus for detecting a frequency band and mode of operation
09/16/2010WO2010103395A1 Synchronization and acquisition for mobile television reception
09/08/2010CN201577073U Frequency selection tuning circuit of singlechip-control 64-bit step-scanning machine
08/2010
08/26/2010US20100214031 Spectrum spread clock generation device
08/26/2010US20100214025 Low jitter and wide-range frequency synthesizer for low voltage operation
08/25/2010CN101816126A Correlation-driven adaptation of frequency control for a RF receiver device
08/24/2010US7783271 Method and apparatus for transmitting and receiving signals
08/17/2010US7778619 Method and apparatus for automatic frequency correction with a frequency error signal generated by block correlation of baseband samples with a known code sequence
07/2010
07/27/2010US7764940 System and method for discovering frequency related spurs in a multi-conversion tuner
07/21/2010CN1661916B Method and system for frequency generation for wireless devices
07/21/2010CN1601918B Portable radio terminal and AFC control method
07/15/2010WO2010080823A1 Frequency drift estimation for low cost outdoor unit
07/07/2010EP2203978A2 Dynamic biasing of a vco in a phase-locked loop
06/2010
06/30/2010EP2201682A1 Apparatus and methods for frequency control in a multi-output frequency synthesizer
06/24/2010WO2010069843A1 Method and apparatus for frequency control in wireless communications
06/09/2010CN1711694B Oscillator frequency control method and device
06/09/2010CN1666414B Receiver for receiving signal in wireless network, method and integrated circuit
06/09/2010CN101729043A Communication system, digitizer and method for receiving radio frequency signal
06/08/2010US7733981 Direct conversion RF transceiver for wireless communications
06/03/2010WO2010062621A1 Digitally controlled oscillator with improved digital frequency calibration
06/02/2010CN101719761A Precise frequency tracking circuit
05/2010
05/27/2010US20100127788 Selectable local oscillator
05/26/2010EP2190118A1 Channel selecting device, channel selecting method, and program
05/26/2010CN1936616B Receiver of signals from GPS system and method for processing GPS system signals
05/12/2010CN101194423B Tunable circuit device and method for providing the same
05/05/2010EP2182726A2 Tuner device
05/05/2010CN1805280B Signal search method
04/2010
04/28/2010EP2179506A1 Correlation-driven adaptation of frequency control for a rf receiver device
04/28/2010CN1543154B Receiver device
04/22/2010WO2010043992A1 Crystalless transceiver
04/20/2010US7701918 Method and device for frequency adjustment
04/06/2010US7693500 Panoramic display for a wireless device
03/2010
03/31/2010EP2169848A1 An improved GPS receiver utilizing satellite position information for compensating Doppler
03/30/2010US7690016 Television broadcast receiver
03/11/2010DE102008041936A1 Sensor device for determining state variable of fluid, has resonator having housing, where determination device is provided for determining resonance frequency of resonator for determining state variable
03/04/2010US20100052746 Voltage-controlled oscillator, phase-locked loop (pll) circuit, and clock generator
02/2010
02/17/2010EP1075665B1 Satellite positioning reference system and method
02/10/2010CN100589537C Channel aquisition method and device for a television receiver
02/03/2010CN201398182Y Switch type digital-analog integration electronic tuner
01/2010
01/26/2010US7652541 Dual-mode voltage-controlled oscillator
01/07/2010WO2010001521A1 Reception device
01/05/2010US7643099 Television system with controlled tuning
12/2009
12/31/2009DE102009030462A1 Dynamisch einstellbare Gütefaktoren Dynamically adjustable quality factors
12/30/2009EP2139111A2 Radio wave receiving apparatus
12/30/2009EP2137816A1 Intelligent scanning system and method for walkie-talkie devices
12/30/2009EP0950194B1 An improved gps receiver utilizing a communication link
12/30/2009CN100576755C Method for reducing scan time in a radio receiver
12/29/2009US7639766 Combined automatic frequency correction and time track system to minimize sample timing errors
12/23/2009CN101610076A Intelligent-tracking tunable band-pass filtering device
12/23/2009CN100574095C Circuit for tuning conduction capacity time constant
12/17/2009US20090310713 Receiving apparatus, receiving method, and program
12/15/2009US7633352 Integrated tunable resonance circuit
12/10/2009DE102008026987A1 Phase-locked loop, has phase detector delivering sequence of signals, which is proportionally associated with momentary phase difference and momentary distance of respective edges and whose periodicity is identical to frequency difference
12/02/2009EP2127076A2 An automatic radio tuning system
12/02/2009CN101594502A A broadcast channel detection equipment, a broadcast channel detection method and a channel selecting equipment
11/2009
11/26/2009DE102004016120B4 Automatisches Frequenzregelsystem und Frequenzregelverfahren Automatic frequency control system and frequency control method
11/25/2009CN101589551A An automatic radio tuning system
11/12/2009US20090278617 Crystal-less Communications Device and Self-Calibrated Embedded Virtual Crystal Clock Generation Method
11/12/2009DE102008014612B3 Verfahren zum Betreiben eines Radiosystems und Radiosystem A method of operating a radio system and a radio system
11/11/2009EP1395072B1 Radio communication apparatus and its reception timing estimating method
11/10/2009US7616935 Method and apparatus for matching receiver carrier frequency
11/10/2009CA2408595C Method and apparatus for compensating local oscillator frequency error through environmental control
11/04/2009EP2113782A2 GPSs mobile unit having a reduced power state
10/2009
10/28/2009EP2112525A1 Method for determining a position of a mobile sps receiver using epoch
10/28/2009CN100555883C Broadcasting receiver
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