Patents
Patents for H03J 7 - Automatic frequency control; Automatic scanning over a band of frequencies (3,745)
02/2004
02/12/2004WO2004013954A1 Dual mode tuning arrangement
02/12/2004US20040028160 Method for frequency acquisition, especially for initial frequency acquisition, of a mobile communications device
02/11/2004EP1388209A1 Reference oscillator with automatic compensation for aging and temperature
01/2004
01/29/2004WO2003036322A3 Method for open loop tracking gps signals
01/27/2004US6684059 Frequency generation in a wireless communication system
01/21/2004EP1383239A1 Method and device for performing automatic frequency control in a DS-CDMA receiver
01/14/2004EP1380108A2 Methods and apparatus for tuning pre-selection filters in radio receivers
01/14/2004CN1134931C Method for measuring frequency difference and receiver
01/14/2004CN1134916C Communication apparatus and frequency control method for communication apparatus
01/14/2004CN1134899C High frequency apparatus
01/13/2004US6678012 LNB drift search system for DBS products
01/13/2004US6677894 Method and apparatus for providing location-based information via a computer network
01/08/2004WO2004004121A1 Automatic frequency control receiver
01/06/2004US6674814 Frequency error estimating apparatus and a frequency error estimating method
01/06/2004US6674813 Integrated circuit for detecting a received signal and circuit configuration
01/06/2004US6674731 Transmission and reception of TCP/IP data over a wireless communication channel
01/02/2004EP1376853A1 Apparatus and method for tuning a filter
12/2003
12/31/2003WO2004001975A1 Tuning system
12/31/2003CN1133323C Circuit for generating automatic trimming control voltage
12/31/2003CN1133322C 电视接收机 TV receiver
12/31/2003CN1133283C 发射接收机 Transmitter-receiver
12/24/2003CN1463504A Auto frequency controller and its control method
12/18/2003WO2003001692A3 Low leakage local oscillator system
12/18/2003US20030232606 Automatic frequency control apparatus
12/18/2003US20030231718 Carrier frequency offset estimator for OFDM systems
12/18/2003US20030231066 Mobile radio communications device
12/16/2003US6665292 Transmission and reception of TCP/IP data over a wireless communication channel
12/09/2003US6662000 Synchronisation method and device for a communication receiver
12/09/2003US6661372 Client-server based remote locator device
12/09/2003US6661291 Fractional and rapid response frequency synthesizer, and corresponding frequency synthesizing method
12/03/2003CN1460348A Method for frequency acquisition, especially for initial frequency acquisition, of mobile communications device
12/03/2003CN1460325A Method for calibrating frequency of HF-oscillator in mobile part of mobile communication device
12/03/2003CN1130043C Method for automatic frequency control of moving station in waiting mode
12/02/2003US6658241 Radio receiver automatic frequency control techniques
11/2003
11/27/2003WO2003098817A2 System and method for frequency management in a communications positioning device
11/27/2003WO2003098258A1 Frequency management in a communications positioning device
11/26/2003CN1129303C Channel selection deivce for receiving digital TV broadcasting and channel selection method
11/26/2003CN1129302C Automatic channel storage device
11/25/2003US6654424 Method and device for tuning a first oscillator with a second oscillator and rotation rate sensor
11/20/2003WO2003096535A1 Method and radio frequency receiver apparatus for processes radio frequency signals
11/20/2003US20030214436 System and method for frequency management in a communications positioning device
11/20/2003US20030214432 System and method for frequency management in a communications positioning device
11/19/2003EP0913031B1 Method and system for tuning resonance modules
11/18/2003US6650636 Transmission and reception of TCP/IP data over a wireless communication channel
11/18/2003US6650376 Controller of tuner apparatus and method for controlling power supply to tuner of tuner apparatus
11/13/2003WO2003094349A1 Method and devices for processing a radio signal with direct analog-to-digital conversion
11/12/2003EP1181775B1 Method for selection of a receiver tuning frequency
11/11/2003US6647247 Method for producing transmission frequency
11/06/2003US20030206079 High-frequency switch
11/04/2003US6643518 Method and apparatus for synchronizing telecommunications devices via a transmission network
11/04/2003US6643334 Bandpass tracker for DTV receiver, with VSB I-F signal filtered for more symmetrical AFPC Loop response
11/04/2003US6642797 Normalization methods for automatic requency compensation in bluetooth applications
10/2003
10/30/2003WO2003090441A2 Channel aquisition processing for a television receiver
10/30/2003WO2003089952A2 Compensation for frequency adjustment in a mobile communication-positioning device with shared oscillator
10/30/2003US20030201839 Normalization methods for automatic requency compensation in bluetooth applications
10/29/2003EP1356600A1 Method and apparatus for reducing scan time in a radio receiver
10/29/2003CN1126277C Radio communication apparatus and adjusting method thereof
10/29/2003CN1126252C Receiver tuning
10/23/2003US20030197638 Compensation for frequency adjustment in mobile communication-positioning device with shared oscillator
10/21/2003US6636571 Automatic frequency control system with improved argument approximation
10/15/2003CN1124686C Automatic frequency control with adjacent channel interference protection
10/14/2003US6633255 Method for open loop tracking GPS signals
10/14/2003US6633206 High-frequency switch
10/09/2003US20030190891 Initial frequency synchronization mechanism
10/09/2003US20030189673 Digital filtering of DTV I-F signal to avoid low-end boost of the baseband signal resulting from in-phase synchrodyne
10/07/2003US6631174 Automatic frequency control apparatus
10/02/2003US20030186661 Method for recording information that is transmitted via a radio frequency
10/02/2003US20030185317 Frequency error correction unit and method in a wireless LAN system
10/02/2003US20030185158 Frequency correction system for a wireless device communicating in a wireless local area network
10/01/2003EP0883951B1 Receiver with filter offset correction
09/2003
09/30/2003US6628930 Radio receiver with two tuners and a switch for verifying reception quality at an alternative frequency
09/30/2003US6628927 Method and apparatus for transmitting and receiving signals
09/30/2003US6628345 Automatic frequency tuning circuit
09/25/2003WO2003079548A1 Direct automatic frequency control method and apparatus
09/25/2003US20030181182 Receiver for wireless transmission system
09/24/2003EP1346430A1 Method for tuning a radio filter and a system for tuning a radio filter
09/23/2003US6625434 Method of performing automatic frequency control in a mobile station during in speech communication mode
09/23/2003US6625431 Tuner device
09/18/2003US20030176173 Direct automatic frequency control method and apparatus
09/17/2003EP1344325A1 Radio transmission device and method for aligning parameters thereof
09/16/2003US6622009 Radiotelephone transmitter/receiver
09/12/2003WO2003075474A1 Superheterodyne circuit with band-pass filter for channel selection
09/03/2003CN1440509A Method and apparatus for compensating local oscillator frequency error
09/03/2003CN1120571C Method and apparatus for estimating frequency offset
08/2003
08/27/2003EP0986883B1 Method and apparatus for band-adaptive demodulation
08/27/2003EP0880713B1 Combined gps positioning system and communications system utilizing shared circuitry
08/27/2003CN1438780A Frequency selection method and receiver
08/26/2003US6611549 Frequency switching method, voltage controlled oscillator using same and receiver for spread spectrum communication using same
08/21/2003US20030155988 Apparatus and method for tuning a filter
08/20/2003EP1337041A1 Frequency selection method and receiver
08/20/2003CN1118979C Automatic frequency control circuit
08/14/2003US20030153290 Frequency selection method and receiver
08/14/2003US20030151698 Digital/analog TV receiver
08/14/2003US20030151455 Circuit for detecting and correcting central level of FSK demodulation signal
08/12/2003US6606129 Digital filtering of DTV I-F signal to avoid low-end boost of the baseband signal resulting from in-phase synchrodyne
08/06/2003EP1332554A2 Automatic frequency control systems and methods for joint demodulation
08/06/2003EP1012970B1 Frequency adjustment
08/06/2003CN1117457C Clock regeneration circuit
07/2003
07/31/2003WO2003063353A1 Receiver
07/30/2003EP1188236B1 Integrated circuit for detecting a receive signal and circuit array
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