| 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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| 04/07/1999 | EP0907276A1 Adaptive pre-distortion apparatus for linearizing an amplifier output within a data transmission system |
| 04/07/1999 | EP0907263A2 CDMA cellular communication system using frame offset distribution of all base stations to avoid traffic peak |
| 04/07/1999 | EP0907260A2 Device for receiving and transmitting high frequency signals |
| 04/07/1999 | EP0907259A2 CDMA receiving method and receiver |
| 04/07/1999 | EP0907258A2 Audio signal compression, speech signal compression and speech recognition |
| 04/07/1999 | EP0907248A2 Electronic component, ladder filter and communication apparatus |
| 04/07/1999 | EP0907246A2 Piezoelectric resonator, method for adjusting frequency of the piezoelectric resonator and communication apparatus |
| 04/07/1999 | EP0907245A2 Piezoelectric resonator, method for adjusting frequency of the piezoelectric resonator and communication apparatus |
| 04/07/1999 | EP0906691A1 Ir transmitter with magnetic stripe card reader |
| 04/07/1999 | EP0906684A1 Communications terminal having a single transducer for handset and handsfree receive functionality |
| 04/07/1999 | EP0906681A1 Improved coding system for digital transmission compression |
| 04/07/1999 | EP0906670A2 Transmitter diversity assembly and associated method for radio transmitter |
| 04/07/1999 | EP0906667A1 Process for operating a network |
| 04/07/1999 | EP0906666A1 Printed circuit board having integrated broadside microwave coupler |
| 04/07/1999 | EP0906660A1 Low power audio device |
| 04/07/1999 | EP0906656A2 Dsp implementation of a cellular base station receiver |
| 04/07/1999 | EP0906598A1 Dispensing system and method with radio frequency customer identification |
| 04/07/1999 | EP0878058A4 Loop antenna with reduced electrical field sensitivity |
| 04/07/1999 | EP0679297B1 Device and method for tuning a band-pass filter |
| 04/07/1999 | CN2313337Y Single-carrier multiway information modulator-demodulator |
| 04/07/1999 | CN2313336Y Multifunction cordless receiving device |
| 04/07/1999 | CN2313335Y Integrated housing for radio data transmission station and global positioning system and telecontrolled alarm |
| 04/07/1999 | CN1213471A Method and apparatus for antenna realignement in mobile radiotelephone using injected audio signal |
| 04/07/1999 | CN1213259A Folded type portable radio communication apparatus |
| 04/07/1999 | CN1213234A Wireless information communication method and its device |
| 04/07/1999 | CN1213216A Microwave mixing circuit and down-converter |
| 04/07/1999 | CN1213213A High frequency apparatus |
| 04/07/1999 | CN1213109A Adapter for terminal unit |
| 04/07/1999 | CN1042886C Method for transmitting and receiving original information signal |
| 04/07/1999 | CN1042885C System for compressing pass band of frequency-modulated wave |
| 04/07/1999 | CN1042884C Selective-calling radio receiver |
| 04/07/1999 | CN1042883C Power circuit and radiocommunication apparatus using the power circuit |
| 04/07/1999 | CN1042877C Extra antenna element |
| 04/06/1999 | US5893067 Method and apparatus for echo data hiding in audio signals |
| 04/06/1999 | US5893066 Fast requantization apparatus and method for MPEG audio decoding |
| 04/06/1999 | US5893030 Dual-function double balanced mixer circuit |
| 04/06/1999 | US5893029 Baseband phase-locked direct conversion receiver with frequency offset |
| 04/06/1999 | US5893027 Fully integrated two-way radio transmitter utilizing current mode transmit buffer and method of using same |
| 04/06/1999 | US5893026 Low pass filter for suppressing harmonic of radio transmitter |
| 04/06/1999 | US5893023 Satellite receiver including operating voltage supply arrangement suitable for different antenna assemblies |
| 04/06/1999 | US5892793 Spread spectrum signalling schemes |
| 04/06/1999 | US5892792 12-chip coded spread spectrum modulation for direct conversion radio architecture in a digital cordless telephone |
| 04/06/1999 | US5892483 Dual antenna arrangement for portable transceiver |
| 04/06/1999 | US5892410 Method and apparatus for transmitting radio frequency signals |
| 04/06/1999 | US5892403 Power interface circuit for a TDMA transmitter |
| 04/06/1999 | US5892395 Method and apparatus for efficient signal power amplification |
| 04/06/1999 | US5892393 Power supply circuit having an auxiliary power source for compensating for main power drop |
| 04/06/1999 | US5892300 System for contactless power and data transmission |
| 04/06/1999 | CA2156149C Battery-powered accessory for radio data communication of a data processing apparatus |
| 04/06/1999 | CA2154180C Multiple-modulation communication system |
| 04/06/1999 | CA2153538C Apparatus and method for minimizing the turn on time for a receiver operating in a discontinuous receive mode |
| 04/06/1999 | CA2152861C Communication device |
| 04/06/1999 | CA2104001C Radio with silent and audible alerts |
| 04/06/1999 | CA2087839C Prioritized data transfer method and apparatus for a radiotelephone peripheral |
| 04/06/1999 | CA1340489C Actuator and communication systems |
| 04/02/1999 | CA2249033A1 Complete radio navigation receiver, particularly of the gps type |
| 04/01/1999 | WO1999016287A1 Method or wireless transmission of audio signals, audio equipment and audio playback device |
| 04/01/1999 | WO1999016273A1 Dual mode mobile telephone |
| 04/01/1999 | WO1999016247A1 Channel scanning and channel change latency reduction in an atsc television receiver |
| 04/01/1999 | WO1999016187A1 Air interface for efficient use of the spectrum in the 2.4 ghz ism band using existing dect base band controllers |
| 04/01/1999 | WO1999016183A2 Mobile station assisted timing synchronization in a cdma communication system |
| 04/01/1999 | WO1999016181A1 Graphical user interface for a portable telephone |
| 04/01/1999 | WO1999016180A1 Car radio including a hand device |
| 04/01/1999 | WO1999016179A2 Improvements in or relating to phasing receivers |
| 04/01/1999 | WO1999016178A2 Multiple u channel isdn communications interface |
| 04/01/1999 | WO1999006998B1 Model and command set for an av/c-based disc player/recorder subunit |
| 04/01/1999 | WO1999001933A3 Multiple mode direct conversion receiver |
| 04/01/1999 | WO1998053343A9 Tagging system using motion detector |
| 04/01/1999 | DE19742851A1 Funkgerät Radio set |
| 04/01/1999 | DE19741595A1 Verfahren zur drahtlosen Übertragung von Audiosignalen, Audiogerät und Tonwiedergabevorrichtung Method for wireless transmission of audio signals, audio and sound reproducing device |
| 04/01/1999 | CA2614568A1 Mobile station assisted timing synchronization in a cdma communication system |
| 04/01/1999 | CA2614566A1 Mobile station assisted timing synchronization in a cdma communication system |
| 04/01/1999 | CA2614565A1 Mobile station assisted timing synchronization in a cdma communication system |
| 04/01/1999 | CA2306485A1 Dual mode mobile telephone |
| 04/01/1999 | CA2304717A1 Multiple u channel isdn communications interface |
| 03/31/1999 | EP0905999A2 Motor vehicle communication system |
| 03/31/1999 | EP0905931A2 Receiver for Digital Audio Broadcast comprising a plurality of decoding means for independently decoding a plurality of programmes |
| 03/31/1999 | EP0905919A1 Nonlinear amplifier calibration system and methods |
| 03/31/1999 | EP0905918A2 Method and apparatus for encoding audio signals |
| 03/31/1999 | EP0905917A2 Multimode wireless communication system |
| 03/31/1999 | EP0905916A2 Method and system for data transmission |
| 03/31/1999 | EP0905915A2 External adapter for portable cellular phone |
| 03/31/1999 | EP0905914A2 Apparatus for cancelling radio frequency interference between transmitting antenna and receiving antenna, repeating system and transmitting and receiving system using the same |
| 03/31/1999 | EP0905913A1 Automatic indentification of audio bezel |
| 03/31/1999 | EP0905912A2 Wireless microphone with UHF band FM transmitter |
| 03/31/1999 | EP0905888A2 Correlation detecting method and matched filter unit |
| 03/31/1999 | EP0905878A2 Modulator for generating a RF signal |
| 03/31/1999 | EP0904640A1 Process for separating a received mixture of signals |
| 03/31/1999 | EP0904635A1 An apparatus, method and article of manufacture for carrier frequency compensation in an fm radio |
| 03/31/1999 | EP0842567B1 Synchronization to pseudo random number sequence with sign ambiguity in communications systems |
| 03/31/1999 | EP0797872A4 Method of electronic control |
| 03/31/1999 | EP0692162B1 Method and apparatus for providing a communication link quality indication |
| 03/31/1999 | CN1212821A Method for manufacturing housing part with screening effect for radio communication equipment |
| 03/31/1999 | CN1212797A Method and device for monitoring mobile telephone repeater |
| 03/31/1999 | CN1212796A Method for allocating Rake branches and Rake receiver |
| 03/31/1999 | CN1212794A Receiver with tunable parallel resonant circuit |
| 03/31/1999 | CN1212791A Combination satellite and VHF/UHF receiving antenna |
| 03/31/1999 | CN1212790A Folded bow-tie antenna |
| 03/31/1999 | CN1212789A Orthogonal switched antenna system |
| 03/31/1999 | CN1212597A Method for extending battery run-time of mobile communication terminal |