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)
06/1999
06/09/1999CN1219061A Antenna device of hand-held communication terminal
06/09/1999CN1219059A Modular card locking device for distriminating mobile telephone users
06/09/1999CN1219049A Interference eliminator
06/09/1999CN1219046A Single or multiple way non-guide phase interference demodulating device and relative multi-way receiving module
06/09/1999CN1219040A Qiepu clock restoring device for quick correcting error
06/09/1999CN1219039A Radio communication apparatus and radio communication method
06/09/1999CN1219037A Device and method for compensating frequency drift in satillite communication
06/09/1999CN1219036A Music input method for communication terminal
06/09/1999CN1219026A Reducing power protection circuit for electronic device
06/09/1999CN1218957A Method and apparatus for detecting spread spectrum signal
06/09/1999CN1043596C Method and apparatus for integrating a plurality of input signals
06/09/1999CA2224261A1 Low phase noise, high q, high gain amplifier in an integrated circuit
06/08/1999US5911130 Audio signal compression and decompression utilizing amplitude, frequency, and time information
06/08/1999US5911128 Method and apparatus for performing speech frame encoding mode selection in a variable rate encoding system
06/08/1999US5911121 Method and apparatus for automatically configuring a control program for a mobile radio communication device
06/08/1999US5911118 Scanner with audible identification of tuned channel
06/08/1999US5911116 Transmitting-receiving switch-over device complete with semiconductors
06/08/1999US5911115 Data transmission over amps networks
06/08/1999US5910996 Dual audio program system
06/08/1999US5910995 DSP decoder for decoding analog SR encoded audio signals
06/08/1999US5910965 Adaptive predistortion using over-the-hop feedback
06/08/1999US5910964 Code detection apparatus
06/08/1999US5910950 Demodulator phase correction for code division multiple access receiver
06/08/1999US5910948 Acquisition scheme and receiver for an asynchronous DS-CDMA cellular communication system
06/08/1999US5910944 Radio telephone and method for operating a radiotelephone in slotted paging mode
06/08/1999US5910784 Control circuit of a remote controller
06/08/1999US5910779 Radio scanning system using acoustical surface waves (SW radio scanning system)
06/08/1999US5910731 Front end interface circuit and method of tuning the same
06/08/1999CA2094391C Co-channel interference reduction system for digital high definition television
06/04/1999CA2253720A1 Docking station for mobile telecommunication handset
06/03/1999WO1999027732A1 Calibration of subscriber terminal for wireless telecommunications system
06/03/1999WO1999027690A1 System for processing broadcasted signals
06/03/1999WO1999027672A1 Channel estimating apparatus, and cdma receiver and cdma transceiver each having the apparatus
06/03/1999WO1999027667A1 Radio receiver with two tuners and a switch for verifying reception quality at an alternative frequency
06/03/1999WO1999027665A1 Channel control in a wavelength division multiplexed communications network
06/03/1999WO1999027656A1 A bio-compatible cellular telephone apparatus
06/03/1999WO1999027651A1 Method and circuit for sampling an analog signal
06/03/1999WO1999027645A1 An amplifier and a method of power amplification
06/03/1999WO1999027520A1 Active soundproofing method and device
06/03/1999WO1999016183A3 Mobile station assisted timing synchronization in a cdma communication system
06/03/1999WO1999014854A3 A high frequency amplifier, and a communication receiver or transceiver
06/03/1999WO1999013621A3 Unreliability detector apparatus and reproduction apparatus provided with the unreliability detector apparatus
06/03/1999CA2311470A1 Calibration of subscriber terminal for wireless telecommunications system
06/03/1999CA2277811A1 Channel control in a wavelength division multiplexed communications network
06/02/1999EP0920208A1 Method and apparatus for gathering program watched data
06/02/1999EP0920207A1 Interactive terminal for television delivery system
06/02/1999EP0920206A1 Advanced set top terminal with electronic mailbox for cable television delivery systems
06/02/1999EP0920148A1 Method for controlling communication of mobile equipment and mobile equipment
06/02/1999EP0920146A2 Transceiver with rf loopback and downlink frequency scanning
06/02/1999EP0920140A2 Radio communication apparatus and method
06/02/1999EP0920139A1 Method and circuit for control of devices connected to a central control device
06/02/1999EP0920128A2 Impedance stabilizing unit and high-frequency module using the unit
06/02/1999EP0920127A2 Speech band division decoder
06/02/1999EP0919989A1 Audio signal encoder, audio signal decoder, and method for encoding and decoding audio signal
06/02/1999EP0919931A2 Method for transmitting a digital audio signal
06/02/1999EP0919091A1 Receiver for independent sideband signals
06/02/1999EP0919084A2 Digital communication device
06/02/1999CN2322321Y Raido set
06/02/1999CN1218589A Coaxial cable assembly for portable phone
06/02/1999CN1218340A Transmission power control method and transmission/reception apparatus
06/02/1999CN1218339A Scalable audio encoding/decoding method and apparatus
06/02/1999CN1218338A Method for compression of signal transmission frequency bands
06/02/1999CN1218337A Receiver, radio communication system and communication method
06/02/1999CN1218336A Changeable radio module set communication device
06/02/1999CN1218335A Multichannel radio module-set communication device
06/02/1999CN1218334A Scalable stereo audio encoding/decoding method and apparatus
06/02/1999CN1218330A Gain control method and circuit
06/01/1999US5909653 Portable radio device
06/01/1999US5909652 Radio communication system and radio communication terminal
06/01/1999US5909646 System for estimating signals received in the form of mixed signals
06/01/1999US5909645 Receiver with dynamic attenuation control for adaptive intermodulation performance enhancement
06/01/1999US5909644 AM radio receiver
06/01/1999US5909643 Transmitter power varying device having a bypass line for a power amplifier
06/01/1999US5909642 Nonlinear distortion detecting circuit and nonlinear distortion compensating circuit for transmitter
06/01/1999US5909641 Transmit/receive switch
06/01/1999US5909640 Wireless communication system for adapting to frequency drift
06/01/1999US5909639 Radio selective calling receiver
06/01/1999US5909472 Digital circuit clocking using a dual side band suppressed carrier clock modulated signal
06/01/1999US5909467 For encoding an input spectrum signal
06/01/1999US5909461 Spread spectrum communication apparatus and demodulator surface acoustic wave element and surface acoustic wave parts for spread spectrum communication
06/01/1999US5909435 Wideband code-division multiple access system and method
06/01/1999US5909433 Method and apparatus for acquiring low duty-cycle reference signals in a mobile communications environment
06/01/1999US5909193 Digitally programmable radio modules for navigation systems
06/01/1999US5909184 Display information receiving device
06/01/1999US5909153 Method and apparatus for compensating for delays in modulator loops
06/01/1999US5909144 Digital method and apparatus for reducing EMI emissions in digitally-clocked systems
06/01/1999US5909102 Battery connection apparatus employing fixed latching members
06/01/1999US5909093 Remotely controlled blind arrangement
06/01/1999US5908476 Photopolymerization
06/01/1999CA2153516C Mobile station for cdma mobile communication system and detection method of the same
06/01/1999CA2146445C Receiver and repeater for spread-spectrum communications
05/1999
05/27/1999WO1999026370A2 Fast acquisitions of direct sequence spread spectrum signals
05/27/1999WO1999026365A1 Improvement in, or relating to, subscriber line transmission systems
05/27/1999WO1999026361A1 Modulation systems and methods including oversampling of narrow bandwidth signals and dc offset compensation
05/27/1999WO1999026354A1 Information communication device
05/27/1999WO1999026353A1 Transceiver architecture in a dual band mobile phone
05/27/1999WO1999026351A1 Method for actualizing information stored in a mobile communications terminal and a communications terminal
05/27/1999WO1999026350A1 Low to higher if conversion for active filtered limited if systems
05/27/1999WO1999026349A1 Signal generating circuit, and transmitter, receiver and transmitting and receiving device using the circuit
05/27/1999WO1999026336A1 Simplified reference frequency distribution in a mobile phone