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) |
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02/16/2000 | CN1244975A A wrist-mounted telephone device |
02/16/2000 | CN1244974A Radio telephone with separate antenna for stand-by mode |
02/16/2000 | CN1244969A Method and system for placing digit converter in hybrid matrix amplifier |
02/16/2000 | CN1244956A Dual band antenna |
02/16/2000 | CN1244757A Dismantling device for battery group |
02/16/2000 | CN1244752A Digit broadcast receiving apparatus |
02/16/2000 | CN1244737A Antenna device |
02/16/2000 | CN1244677A Information processing apparatus and method, and supply medium |
02/16/2000 | CN1049545C Method and arrangement of estimating transmitted symbols at a receiver in digital signal transmission |
02/16/2000 | CN1049542C Radio receiver capable of reducing electromagnetic interference produced by power source changing circuit |
02/15/2000 | US6026310 Method of reducing clicks in a data transmission system |
02/15/2000 | US6026308 Combination cordless phone-fax modem-computer |
02/15/2000 | US6026307 Arrangement in a communication system |
02/15/2000 | US6026288 Communications system with an apparatus for controlling overall power consumption based on received signal strength |
02/15/2000 | US6026287 Mixer with cross-connected symmetrical subcircuit couplings |
02/15/2000 | US6026286 RF amplifier, RF mixer and RF receiver |
02/15/2000 | US6026285 Intermodulation distortion reduction circuit utilizing variable attenuation |
02/15/2000 | US6026284 Output control unit of mobile communication system and its controlling method |
02/15/2000 | US6026282 Carry case and external electronic accessory assembly |
02/15/2000 | US6026281 Dielectric filter having coupling windows between resonators, and transceiver using the dielectric filter |
02/15/2000 | US6026280 Antenna matching circuit switching system in TDMA portable telephone |
02/15/2000 | US6026278 Radio receiver having temperature compensated voltage controlled crystal oscillator |
02/15/2000 | US6026193 Video steganography |
02/15/2000 | US6026129 Radio receiving apparatus for receiving communication signals of different bandwidths |
02/15/2000 | US6026119 Wireless packet data communications modem and method of use therein |
02/15/2000 | US6026117 Method and apparatus for generating complex four-phase sequences for a CDMA communication system |
02/15/2000 | US6026116 Transmitting/receiving facility and method for transmitting broadband signals as well as transmitting/receiving facility for receiving broadband signals |
02/15/2000 | US6026115 Rake receiver |
02/15/2000 | US6026114 Transmitting and receiving apparatus of time division full-duplex spread spectrum communication system |
02/15/2000 | US6025802 Antenna for mobile communications device |
02/15/2000 | US6025761 Composite filter with LC and saw filters and radio equipment using the same |
02/15/2000 | US6025694 Battery pack for a portable electric apparatus and a method for the charging thereof |
02/15/2000 | US6025654 Method for controlling the transmission of data between components and component for implementing the method |
02/15/2000 | US6025553 Portable music performance device |
02/15/2000 | CA2137458C Antenna for an electronic apparatus |
02/15/2000 | CA2110428C Electronic circuit pack and mounting frame combination |
02/12/2000 | CA2254375A1 Intermodulation correction for combined analog- and digital-format rf transmitters |
02/11/2000 | CA2279757A1 Multiple user cdma base station modem |
02/10/2000 | WO2000007405A1 Remote control device and video display device |
02/10/2000 | WO2000007387A1 Information transmission method |
02/10/2000 | WO2000007377A2 Gated transmission in control hold state in cdma communication system |
02/10/2000 | WO2000007356A2 Digital watermarks and methods for security documents |
02/10/2000 | WO2000007346A1 Method and circuit for enabling and disabling a data transceiver |
02/10/2000 | WO2000007303A1 Method for inserting auxiliary data in an audio data stream |
02/10/2000 | WO2000007302A1 Interference detection and avoidance technique |
02/10/2000 | WO2000007301A2 Hardware-efficient transceiver with delta-sigma digital-to-analog converter |
02/10/2000 | WO2000007177A1 Communication terminal |
02/10/2000 | WO2000007157A1 Protective mask communication devices and systems for use in hazardous environments |
02/10/2000 | WO2000007141A1 Data carrier with power input control |
02/10/2000 | WO2000006273A2 Apparatus for and method of processing information, information processing system, terminal for and method of receiving data, and data broadcasting system |
02/10/2000 | WO2000006272A1 System for and method of processing data, and apparatus and method of sending and receiving data |
02/10/2000 | WO1999066721A3 Television signals receiver |
02/10/2000 | WO1999064974B1 A monitoring system |
02/10/2000 | WO1999060763A3 Telematics device comprising the combination of a cellular telephone and an electronic navigation apparatus |
02/10/2000 | WO1999059312A3 Mobile communications |
02/10/2000 | WO1998057436A3 Source coding enhancement using spectral-band replication |
02/10/2000 | DE19835136A1 Telephone for wearing on the arm has microphone integrated into main unit worn on arm; ear piece is connected to main unit via one or more piece cable that can be pulled out and returned |
02/10/2000 | DE19832850A1 Akquisitionsverfahren und Vorrichtung zur Durchführung des Verfahrens Acquisition method and apparatus for performing the method |
02/10/2000 | DE19832628A1 Long range transponder arrangement e.g. for vehicle identification, using HF pump circuit to transfer operating power from vehicle supply when in transmit mode |
02/10/2000 | CA2338531A1 Method for inserting auxiliary data in an audio data stream |
02/10/2000 | CA2305263A1 Information transmission method |
02/10/2000 | CA2305153A1 Apparatus for and method of processing information, information processing system, terminal for and method of receiving data, and data broadcasting system |
02/10/2000 | CA2304519A1 System for and method of processing data, and apparatus and method of sending and receiving data |
02/09/2000 | EP0978969A2 Method and device for demodulating a received signal including a pilot signal |
02/09/2000 | EP0978951A2 Linear space-time multiuser detector |
02/09/2000 | EP0978950A2 Decode circuit for code devision multiple access receiver |
02/09/2000 | EP0978949A1 Radio frequency switch |
02/09/2000 | EP0978940A1 Broadcast receiver system |
02/09/2000 | EP0978800A2 Portable electronic banking apparatus |
02/09/2000 | EP0978218A2 Isdn network with a dect intermediate system |
02/09/2000 | EP0978170A1 Method of and apparatus for controlling transmission power in a communication system |
02/09/2000 | EP0978168A2 Orthogonal code synchronization system and method for spread spectrum cdma communications |
02/09/2000 | EP0978167A1 Dual band radio receiver |
02/09/2000 | EP0978166A2 Terminal unit for digital mobile radiotelephone communication and method for evaluating data received in a terminal unit of this type |
02/09/2000 | EP0978163A1 Battery life extending technique for mobile wireless applications |
02/09/2000 | CN2363431Y FM receiver with electronic tuning and frequency ordering |
02/09/2000 | CN2363430Y Oriention infrared ray receiver |
02/09/2000 | CN2363427Y Wristwatch type radio receiver |
02/09/2000 | CN1244322A Non-coherent six-port receiver |
02/09/2000 | CN1244319A Channel estimating apparatus, and CDMA receiver and transceiver each having the apparatus |
02/09/2000 | CN1244316A Receiver apparatus for two frequency bands |
02/09/2000 | CN1244315A Improvements in or relating to phase receivers |
02/09/2000 | CN1244313A Method and apparatus for automatic gain control in digital receiver |
02/09/2000 | CN1244305A Battery pack for portable electric apparatus and method for charging thereof |
02/09/2000 | CN1244089A Receiving and transmitting device difined by software for wireless communication system |
02/09/2000 | CN1049311C Radio receiving |
02/09/2000 | CN1049310C 无线电接收机 Radio receiver |
02/08/2000 | USRE36559 Method and apparatus for encoding audio signals divided into a plurality of frequency bands |
02/08/2000 | US6023626 Allocating speech items to mobile units communicating on direct mode channel |
02/08/2000 | US6023616 Satellite broadcast receiver system |
02/08/2000 | US6023614 Method for decoding a suppressed-carrier modulated signal in the presence of a pilot tone, particularly for FM signals |
02/08/2000 | US6023613 Synthesizer receiver for automatically tuning master stations and associated satellite stations in specified geographical areas |
02/08/2000 | US6023609 Device for separating transmitting waves and receiving waves and a radio communication equipment provided with the device |
02/08/2000 | US6023603 Satellite signal splitter |
02/08/2000 | US6023490 Encoding apparatus for encoding a plurality of information signals |
02/08/2000 | US6023489 Method and apparatus for code synchronization in a global positioning system receiver |
02/08/2000 | US6023488 Spread spectrum modulation |
02/08/2000 | US6023452 Network failure restoration method with different recovery performances for different signal groups |
02/08/2000 | US6023359 Optical wavelength-division multiplex transmission equipment with a ring structure |
02/08/2000 | US6023205 Circuit arrangement for reducing passband ripple of a bandpass filter |