Patents
Patents for H04B 1 - Details of transmission systems, not covered by a single one of groups; Details of transmission systems not characterised by the medium used for transmission (188,568)
08/2002
08/14/2002DE10103609A1 Freisprecheinrichtung für den Betrieb von Mobiltelefonen in Kraftfahrzeugen Handsfree for the operation of mobile phones in vehicles
08/14/2002DE10103608A1 Freisprecheinrichtung für den Betrieb von Mobiltelefonen in Kraftfahrzeugen Handsfree for the operation of mobile phones in vehicles
08/14/2002DE10103400A1 Verfahren zur Audioserviceumschaltung bei einem Rundfunkempfänger A method for audio switching service in a radio receiver
08/14/2002DE10102280A1 Signalübertragung für elektrische und elektronische Geräte mit externen akustischen Ein- und/oder Ausgabevorrichtungen Signal transmission for electric and electronic devices with external acoustic input and / or output devices
08/14/2002CN2506028Y Signal receiving and transmitting device
08/14/2002CN2506027Y Line cable data receiver for computer
08/14/2002CN2506026Y Radio transmitting circuit with adjustable radio frequency transmission power
08/14/2002CN2506025Y Infinite transmitting circuit with adjustable and variable radio frequency amplifying power
08/14/2002CN2506024Y High frequency high power directional coupler
08/14/2002CN2506023Y TV remote controller box
08/14/2002CN1364373A Transmission gain regulating method and radio device
08/14/2002CN1364372A Method of and receiver for detecting presence of data
08/14/2002CN1364370A Multimode fast attack automatic gain control (AGC) loop for narrow band receivers
08/14/2002CN1364361A Receiving apparatus and gain control method
08/14/2002CN1364360A Data transmitting apparatus and method
08/14/2002CN1364358A Radio communication apparatus and method
08/14/2002CN1364357A Transmitter, receiver, and method of data transmission
08/14/2002CN1364356A Transmission power control device and method
08/14/2002CN1364354A Transmitting apparatus and method
08/14/2002CN1364349A Frequency hopping method for mobile radio telephone system
08/14/2002CN1364347A High-frequency module and wireless communication device
08/14/2002CN1364346A Radio transmitter and receiver
08/14/2002CN1364345A Personal digital assistant/telephone combination device
08/14/2002CN1364344A Communication terminal and advertising method using the same
08/14/2002CN1364343A Multi-frequency band, multi-mode radio receiver, and associated method, having shared circuit elements
08/14/2002CN1364342A Transmission device
08/14/2002CN1364337A automatic gain control in zero intermediate frequency radio device
08/14/2002CN1364278A 识别标签 Identification tag
08/14/2002CN1364042A Assembled network for changeable route power amplifier
08/14/2002CN1364039A Self adaption method for reducing power consumption of digital radio communication system in waisting status
08/14/2002CN1364019A Ringe assembly for mobile radio terminal
08/14/2002CN1364012A Ethernet hub able to implement redundent power supply of network
08/14/2002CN1364010A Electric executing mechanism able to implement Ethernet communication and with redundent power supply provided by network
08/14/2002CN1364009A Transmitting and zero intermediate frequency receiving method and device in multi-carrier CDMA system based on polyphase decomposition
08/14/2002CN1364008A Method and detector for detecting multiple user signals in DS/CDMA system
08/14/2002CN1364007A Apparatus including receiving device by space distribution and method for processing signals via varied channel
08/14/2002CN1364005A Synchronous timing calibrating circuit and method
08/14/2002CN1364004A Method and device for eliminating spectrum-spreading interference in WCDMA system
08/14/2002CN1364000A Wireless resource allocation method
08/14/2002CN1363998A Duplex equipment and method for large scale system
08/14/2002CN1363968A Flat antenna and double frequency bands emitter therewith
08/14/2002CN1363966A Charger able to start charging by binding force and disconnect on charge saturation
08/14/2002CN1363843A Digital controlled oscillator for radio signal receiver
08/14/2002CN1089204C Qiepu clock restoring device for quick correcting error
08/13/2002US6434405 Transmitting and receiving card selectively attached to portable phone or information terminal
08/13/2002US6434401 Method for the setting of a multiband mobile telephony transmitter-receiver and mobile telephone thus obtained
08/13/2002US6434376 Slotted idle mode for dual mode subscriber stations
08/13/2002US6434373 Transmission power control device capable of decreasing current consumption
08/13/2002US6434372 Long-range, full-duplex, modulated-reflector cell phone for voice/data transmission
08/13/2002US6434370 Mobile telephone with articulated flap above the keypad
08/13/2002US6434369 Antenna device and portable transceiver
08/13/2002US6434368 Diode-based switch for a radio transceiver
08/13/2002US6434365 Providing initial power estimate to wireless telephone handsets
08/13/2002US6434362 Method of receiving messages, and electrical appliance for implementing the method
08/13/2002US6434360 Radio communication apparatus
08/13/2002US6434200 TCM revisiting system and method
08/13/2002US6434194 Combined OOK-FSK/PPM modulation and communication protocol scheme providing low cost, low power consumption short range radio link
08/13/2002US6434187 Digital radiofrequency transceiver
08/13/2002US6434185 Correlation system for use in wireless direct sequence spread spectrum systems
08/13/2002US6434184 Orthogonal frequency hopping using skip zones
08/13/2002US6434163 Transverse correlator structure for a rake receiver
08/13/2002US6434135 Adaptive RF amplifier prelimiter
08/13/2002US6434131 CDMA method with increased capacity
08/13/2002US6434129 Method and system for an air interface for providing voice, data, and multimedia services in a wireless local loop system
08/13/2002US6434122 Filtering method to allow FDD and TDD operation in PCS transreceivers
08/13/2002US6434111 Soft decision rule for demodulation of bi-orthogonal signals
08/13/2002US6433835 Expanded information capacity for existing communication transmission systems
08/13/2002US6433834 Method for suppressing noise in signals
08/13/2002US6433801 Method and apparatus for using a touch screen display on a portable intelligent communications device
08/13/2002US6433734 Method and apparatus for determining time for GPS receivers
08/13/2002US6433728 Integrally molded remote entry transmitter
08/13/2002US6433655 Dielectric filter, a dielectric duplexer, and a communication apparatus
08/13/2002US6433651 Dielectric filter, composite dielectric filter, duplexer, and communication apparatus having resonance-line holes with offset steps
08/13/2002US6433641 Power amplifier and communication device including power amplifier
08/13/2002US6433639 High frequency power amplifier module and wireless communication system
08/13/2002US6431451 Hand-held data capture system with interchangeable modules
08/13/2002US6431266 Door plate driving mechanism of air conditioning system for automobile
08/13/2002CA2317764C Improvements in and relating to emitters
08/13/2002CA2248508C Adaptive digital radio communication system
08/13/2002CA2239524C Complemental service providing device and method in communications system
08/08/2002WO2002062096A2 Electroacoustic conversion of audio signals, especially voice signals
08/08/2002WO2002062077A1 A selective cloaking circuit for use in a radiofrequency identification and method of cloaking rfid tags
08/08/2002WO2002062067A1 Transmitter-receiver system
08/08/2002WO2002062053A1 Device with several transport current paths for receiving digital radio signals
08/08/2002WO2002062052A1 Device for receiving digital radio signals
08/08/2002WO2002062029A2 Compensation method for a transceiver using two-point modulation
08/08/2002WO2002061994A1 Adaptive, multi-rate waveform and frame structure for a synchronous ds-cdma system
08/08/2002WO2002061990A2 Method and apparatus for allocating fingers in a wireless communication system
08/08/2002WO2002061966A1 Method and system for controlling device transmit power in a wireless communication network
08/08/2002WO2002061964A2 Frequency schema for data transmission systems
08/08/2002WO2002061962A1 Communication system using a modulation method based on residue number systems
08/08/2002WO2002061961A1 Time division multiplexing connection transceiver and its receiving automatic gain control method
08/08/2002WO2002061960A1 A wireless mobile phone with inverted placement of antenna and input keypad
08/08/2002WO2002061957A2 Battery operated remote transceiver (bort) system and method
08/08/2002WO2002061953A1 Decoding device and decoding method
08/08/2002WO2002061940A1 Cmos power amplifier with reduced harmonics and improved efficiency
08/08/2002WO2002061938A1 Distortion compensation apparatus
08/08/2002WO2002061879A1 Method and apparatus for detecting physical position of a retractable antenna
08/08/2002WO2002054448A3 Low cost mmw transceiver packaging
08/08/2002WO2002035718A3 Direct conversion radio transceiver