Patents for H03J 7 - Automatic frequency control; Automatic scanning over a band of frequencies (3,745) |
---|
12/18/2002 | CN1386352A Radio communication receiver |
12/18/2002 | CN1096794C Method for reducing carrier recovery time in high difinition television receiver |
12/12/2002 | WO2002100123A1 Radio communication apparatus and its reception timing estimating method |
12/12/2002 | WO2002084870A3 Methods and apparatus for tuning rf-filters in radio receivers |
12/11/2002 | EP1264428A2 Method for recording information that is transmitted via a radio frequency |
12/11/2002 | CN1385048A Method and system for frequency spectrum resource allocation |
12/11/2002 | CN1385019A Timing synchronizaation and phase/frequency correction of QPSK signals |
12/11/2002 | CN1385000A Transceiver with local oscillator frequency settings using demodulated bit rate |
12/04/2002 | EP1262790A2 Method and apparatus for determining time for GPS receivers |
12/03/2002 | US6490010 AFC circuit, carrier recovery circuit and receiver device capable of regenerating a carrier reliably even at the time of low C/N ratio |
11/28/2002 | US20020177458 Mobile station capable of performing automatic frequency control based on correspondence of frequency error and TCXO control voltage to base station |
11/28/2002 | US20020177423 Tuner and method of aligning a tuner |
11/27/2002 | EP1260830A2 A GPS receiver and method for processing GPS signals |
11/27/2002 | EP1260049A2 A modulation scheme for fdd/tdd transceivers |
11/27/2002 | CN1382320A Method for regulating frequency offset in base-station receiver of data communications system |
11/27/2002 | CN1095279C Automatic broadcasting channel selection method and television receiver using the method |
11/21/2002 | WO2002093748A1 Reference oscillator with automatic compensation for aging and temperature |
11/21/2002 | US20020173284 Reference oscillator |
11/21/2002 | US20020171581 Method and apparatus for providing location-based information via a computer network |
11/20/2002 | CN1381132A Channel selection apparatus |
11/14/2002 | WO2002035711A8 Filter for electromagnetically transmitted signals |
11/14/2002 | US20020168953 Frequency scanning receiver |
11/13/2002 | EP0872051B1 Method and apparatus for controlling frequency of a multi-channel transmitter |
11/13/2002 | CN1094278C 具有初始频率截获装置的移动通信终端 Having an initial frequency interception device of a mobile communication terminal |
11/12/2002 | US6480709 Method for reducing scan time in a radio receiver |
11/12/2002 | US6480707 Channel selection apparatus |
11/07/2002 | WO2002089326A1 Receiver front-end filter tuning |
11/06/2002 | CN1094002C Automatic frequency correcting device and method for radio calling system |
10/31/2002 | US20020160736 Frequency scanning receiver |
10/30/2002 | EP1253715A1 Tuner and method of aligning a tuner |
10/24/2002 | WO2002084870A2 Methods and apparatus for tuning rf-filters in radio receivers |
10/24/2002 | US20020154249 Intermediate frequency circuit of television tuner, which is not influenced by saw filter characteristics |
10/22/2002 | US6469750 Automatic fine-tuning control voltage generating circuit having level shift circuit |
10/17/2002 | US20020151287 Receiver front-end filter tuning |
10/17/2002 | DE10116886A1 Frequency processing circuit optimisation method for HF heterodyne receiver with separate tuning of heterodyne stages on opposite sides of band-pass filter |
10/16/2002 | CN1375149A 通信系统 Communications systems |
10/16/2002 | CN1375127A PLL with memory for electronic alignments |
10/16/2002 | CN1092883C Demodulator control system and receiver capable of quickly acquiring desired carrier wave |
10/15/2002 | US6466803 Multi-mode communications system with efficient oscillator synchronization |
10/15/2002 | US6466630 Symbol synchronization in a continuous phase modulation communications receiver |
10/10/2002 | WO2001086316A3 Method and apparatus for compensating local oscillator frequency error |
10/10/2002 | US20020146086 Method and phase-locked loop for synchronization with a subcarrier contained in an intelligence signal |
10/08/2002 | US6463266 Radio frequency control for communications systems |
10/03/2002 | WO2001024415A9 Method and apparatus for offset cancellation in a wireless receiver |
10/03/2002 | WO2000011925A3 Circuit for frequency synthesis and modulation and radio-telephone station |
10/02/2002 | EP1245103A1 Offset correction in a spread spectrum communication system |
10/02/2002 | CN1091999C Tuning circuit for receiver, especially for television receiver |
09/25/2002 | EP1032988A4 Apparatus for low power radio communications |
09/25/2002 | CN1371180A Moving station capable of controlling frequency automatically |
09/25/2002 | CN1091553C Small radio receiver |
09/24/2002 | US6456823 System and method for recovering a pilot tone in a local multipoint distribution system signal |
09/24/2002 | US6456672 Automatic frequency control communication system |
09/19/2002 | DE10111402A1 Verfahren und Phasenregelkreis zur Synchronisation auf einen in einem Nutzsignal enthaltenen Hilfsträger The method and phase-locked loop for synchronization with a subcarrier contained in a useful signal |
09/18/2002 | EP1241818A1 Receiver apparatus and method for controlling reference frequency in the receiver apparatus |
09/18/2002 | EP0847622B1 Process for storing of data of a received carrier frequency of a broadcast transmitter |
09/17/2002 | US6452919 Assessment of digital signals, especially radio data signals |
09/17/2002 | CA2231891C Radio apparatus |
09/12/2002 | US20020127984 Frequency tuning of radio transceivers |
09/11/2002 | EP1239625A2 Receiver and method for an initial synchronizing of the receiver to the carrierfrequency of a desired channel |
09/11/2002 | EP1239590A1 Method and phase locked loop for synchronization to a subcarrier that is comprised in a wanted signal |
09/11/2002 | CN1090849C Frequency error correction in satellite-mobile communications system |
09/11/2002 | CN1090841C Integrated circuit for freqency modulation |
09/06/2002 | WO2002069493A2 Automatic frequency control systems and methods for joint demodulation |
09/05/2002 | US20020123311 Radio communication receiver |
09/04/2002 | CN1367631A Portable radio terminal and automatic frequency control method |
09/03/2002 | US6445909 Radio receiver |
09/03/2002 | US6445425 Automatic fine tuning of receiver for digital television signals |
08/29/2002 | WO2002067456A1 Afc controller |
08/29/2002 | WO2002035711A3 Filter for electromagnetically transmitted signals |
08/29/2002 | DE10108110A1 Empfänger und Verfahren zum anfänglichen Synchronisieren eines Empfängers auf die Trägerfrequenz eines gewünschten Kanals Receiver and method of initially synchronizing a receiver to the carrier frequency of a desired channel |
08/28/2002 | EP1161799B1 Transmitter-receiver |
08/15/2002 | US20020109793 Receiving device used in high-definition television |
08/14/2002 | EP1133826B1 Frequency-stabilised transmitting/receiving arrangement |
08/13/2002 | US6433734 Method and apparatus for determining time for GPS receivers |
08/08/2002 | WO2001031774A9 Apparatus and method for changing crystal oscillator frequency |
08/08/2002 | WO2001029980A9 Multi-mode communications system with efficient oscillator synchronization |
08/08/2002 | WO2001026260A9 Method and apparatus for comparator tree structure for fast acquisition of offsets induced in a wireless receiver |
08/08/2002 | WO2001024537A9 Method and apparatus for peak tracking a baseband signal |
08/08/2002 | WO2001024376A9 Method and apparatus for identifying a pre-determined pattern from a received signal via correlation |
08/08/2002 | US20020105387 Fractional and rapid response frequency synthesizer, and corresponding frequency synthesizing method |
08/01/2002 | US20020102957 Radio signal receiving control device and the control method for the same |
07/31/2002 | EP1227586A2 Portable radio terminal and AFC control method |
07/31/2002 | EP1226656A1 Multi-mode communications system with efficient oscillator synchronization |
07/31/2002 | CN1361943A Tuning system for achieving rapid signal acquisition for a digital satellite receiver |
07/25/2002 | WO2002058256A1 Method and apparatus for reducing scan time in a radio receiver |
07/25/2002 | US20020098819 Method and apparatus for reducing scan time in a radio receiver |
07/25/2002 | US20020098817 Portable radio terminal and AFC control method |
07/25/2002 | US20020097344 Digital broadcasting receiver and channel information registration processing method in digital broadcasting receiver |
07/24/2002 | EP1225739A1 Radio communication receiver |
07/24/2002 | EP0894363B1 Automatic frequency control with adjacent channel interference protection |
07/24/2002 | CN1088294C FM multiple broadcast receivers |
07/18/2002 | WO2001009691A9 Narrow band scanning rf receiver |
07/17/2002 | EP1223675A1 Method and device for compensating measurement errors caused by a drift in a reference clock |
07/17/2002 | EP1223434A2 Combined GPS positioning system and communications system utilizing shared circuitry |
07/17/2002 | EP1092292A4 Apparatus and method for protecting a communication device operating in an undesirable environment |
07/16/2002 | US6421099 Automatic frequency tracking apparatus and method for a television signal receiving system |
07/16/2002 | US6421002 GPS receiver utilizing a communication link |
07/16/2002 | US6420916 Phase locked loop filter utilizing a tuned filter |
07/11/2002 | US20020090040 Integrated circuit for detecting a received signal and circuit configuration |
07/10/2002 | EP1221234A2 Method and apparatus for eliminating the effects of frequency offsets in a digital communication system |