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