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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09/22/1992 | US5150387 Variable rate encoding and communicating apparatus |
09/22/1992 | US5150384 Carrier recovery method and apparatus having an adjustable response time determined by carrier signal parameters |
09/22/1992 | US5150378 Method and apparatus for coherent communications in non-coherent frequency-hopping system |
09/22/1992 | US5150361 Battery powered communication device |
09/22/1992 | US5150282 Electromagnetic shielding structure of high-frequency circuit arrangements |
09/22/1992 | CA1307831C Zero if receiver |
09/22/1992 | CA1307829C Radio telephone apparatus |
09/21/1992 | WO1992016996A1 Dynamic range compression |
09/21/1992 | CA2082171A1 Dynamic range compression |
09/17/1992 | WO1992016095A1 Shielding apparatus for non-conductive electronic circuit package |
09/17/1992 | WO1992016062A1 Data bus interface apparatus |
09/17/1992 | WO1992016059A1 A method and a device for controlling a radio transmitter |
09/17/1992 | WO1992016058A1 A method and a device for controlling a radio transmitter |
09/17/1992 | WO1992016057A1 Integrated battery contact and mechanical latch |
09/17/1992 | WO1992016055A1 A clamping assembly for interlocking a radio and battery housing |
09/17/1992 | WO1992016049A1 Process for tuning a radio receiver by utilizing rds data |
09/17/1992 | WO1992015987A1 Voice packet substitution system and method |
09/17/1992 | WO1992015986A1 Variable bit rate speech encoder |
09/17/1992 | WO1992015955A1 Signal processing apparatus and method |
09/17/1992 | DE4107996A1 Mobile hand-held radio communication unit for use in vehicle - is supported in holder within vehicle and is readily released and replaced |
09/17/1992 | DE4107732A1 Mobile radiotelephone with time-division multiplex bus line - carrying digital audio, I=O unit control, data and synchronisation signals in respective time slots |
09/17/1992 | DE4107728A1 Mobile radio, bus-connected to alternative telephone sets - i.e. handset and hands-free microphone loudspeaker combination which share common bus line to digital controller |
09/17/1992 | CA2105387A1 Variable bit rate speech encoder |
09/16/1992 | EP0504063A1 Transceiver for the simultaneous bidirectional baseband transmission of data |
09/16/1992 | EP0504062A1 Integrated circuit with servo-controlled impedances and application to transceivers, particularly for communication between units of an information system |
09/16/1992 | EP0504061A1 Method and circuit for testing serial bidirectional transmissions |
09/16/1992 | EP0504060A1 Method and circuit for transmission detection in bidirectional differential links |
09/16/1992 | EP0504020A1 High frequency transmitter-receiver using multilayer printed circuit technique |
09/16/1992 | EP0504015A1 FM receiver with controlled capture range |
09/16/1992 | EP0503761A1 Power amplifying means for r.f. signals |
09/16/1992 | EP0503695A1 System for accesssing a plurality of stations |
09/16/1992 | EP0503640A2 Backup apparatus against line defect and backup method against line defect |
09/16/1992 | EP0503528A2 Subscriber line interface circuit for ISDN and POTS applications, including echo canal cirenitry |
09/16/1992 | EP0503485A2 Remote control for wireless transmission of commands to video and TV-apparatus |
09/16/1992 | EP0503434A2 Radio transceiver, in particular for car |
09/16/1992 | EP0503282A1 Motor-car radio |
09/16/1992 | EP0503154A2 RDS receiver |
09/16/1992 | EP0502911A1 Tuning apparatus |
09/16/1992 | EP0470089A4 Receiver threshold extension |
09/15/1992 | US5148487 Audio subband encoded signal decoder |
09/15/1992 | US5148486 Voice decoding device |
09/15/1992 | US5148447 Control device in transceiver |
09/15/1992 | US5148413 Narrow band disturbing wave detecting device |
09/15/1992 | US5148280 Stereo fm radio in a television receiver |
09/15/1992 | US5148181 Mobile radio communication apparatus |
09/15/1992 | CA2061135A1 Power amplifying means for r.f. signals |
09/15/1992 | CA1307560C Method of generating an amplitude-modulated isb transmission signaland apparatus for carrying out the method |
09/14/1992 | WO1992017012A1 Method and apparatus for accommodating a variable number of communication channels in a spread spectrum communication system |
09/14/1992 | WO1992017011A1 Method and apparatus for providing high data rate traffic channels in a spread spectrum communication system |
09/13/1992 | CA2038044A1 Multi-mode fm signal receiver |
09/10/1992 | DE4107042A1 Cannula for implanting identification carrier in animal - has carrier placed into intended location by mandril displaceably fitted in cannula and forming once-only usage with it |
09/09/1992 | EP0502567A1 Remote control system for controlling a function of a base station |
09/09/1992 | EP0502566A1 Apparatus for communicating with a vehicle |
09/09/1992 | EP0502546A2 Radio communication apparatus |
09/09/1992 | EP0502500A1 Method for tuning of a radio receiver, using RDS-data |
09/09/1992 | CN2115621U Automatic switch-on intercommunicating telephone |
09/09/1992 | CN2115620U Synchronous demodulating receiver |
09/09/1992 | CN1018227B Telecommunications transmission security arrangement |
09/09/1992 | CA2062343A1 Controlled lock band frequency modulated signal receiver |
09/08/1992 | US5146620 One-piece, light conducting gasket |
09/08/1992 | US5146619 Ear-supported radio |
09/08/1992 | US5146618 Automotive radio support and conversion apparatus |
09/08/1992 | US5146617 Harmonic noise minimization in a radio receiver by selectively optimizing ic's which produce harmonics in the radio's frequency range |
09/08/1992 | US5146615 Interchangeable control panels and keypads for radio transceivers and related process |
09/08/1992 | US5146614 Radio transceiver apparatus with booster |
09/08/1992 | US5146613 Low power uhf data transceiver |
09/08/1992 | US5146471 Correlator for spread spectrum communications systems |
09/08/1992 | US5146457 Device for transmitting data words representing a digitalized analog signal and device for receiving the transmitted data words |
09/08/1992 | US5146338 Fixed rf agc of a television tuner for fm reception in a television receiver |
09/08/1992 | US5146337 Using a first IF of 43.5 MHZ or less in an FM radio in a television tuner |
09/08/1992 | US5146222 Method of coding an audio signal by using coding unit and an adaptive orthogonal transformation |
09/08/1992 | US5146193 Monolithic ceramic filter or duplexer having surface mount corrections and transmission zeroes |
09/08/1992 | US5146079 Broadband optical receiver with active bias feedback circuit |
09/08/1992 | US5145137 Angle adjusting apparatus of an LCD for a car stereo |
09/08/1992 | CA1307334C Mixed mode compression for data transmission |
09/08/1992 | CA1307325C Adaptive scanning method |
09/08/1992 | CA1307324C Paging receiver having a noise-immune verification circuit for disabling battery saving operation |
09/07/1992 | WO1992016064A1 Asymmetric spread spectrum correlator |
09/05/1992 | CA2037540A1 Cellular headphone telephone |
09/03/1992 | WO1992015155A1 Interference reduction system |
09/03/1992 | WO1992015123A1 Monolithic ceramic filter or duplexer having surface mount connections and transmission zeroes |
09/03/1992 | WO1992015073A1 Hand-held data capture system with interchangeable modules and interactive control circuits |
09/03/1992 | DE4205594A1 Sound source switching method for modular hi=fi system - comparing amplification selection signal with current audio signal to initiate switching |
09/03/1992 | DE4106557A1 Combined portable and car cassette radio - has additional features to allow use as portable radio in form of telescopic aerial carrying handle and connectors for mains supply |
09/03/1992 | DE4106479A1 Mobile radio telephone with test interface - has handset connected to receiver via bus enabling peripheral device to be connected |
09/03/1992 | DE4106267A1 Car radio with bridge output stage - has bridge branch, in parallel with temp. sensor, controllable by waveband switch |
09/03/1992 | DE4106077A1 Housing for satellite low noise converter - comprises moulded grooved interlocking two-piece enclosure that is secured and sealed by bead of adhesive |
09/02/1992 | EP0501804A2 Audio signal demultiplexer for a video tape recorder |
09/02/1992 | EP0501460A1 Synchronous detector |
09/02/1992 | EP0500775A1 Soft handoff in a cdma cellular telephone system |
09/02/1992 | EP0467899A4 Radio having optical controls |
09/02/1992 | CN2114928U Remote controlled receiver |
09/02/1992 | CN2114927U Foldable miniature radio |
09/02/1992 | CN2114926U Universal electronic signal transmiter |
09/02/1992 | CN2114925U Wireless sound pick-up device |
09/02/1992 | CN2114923U Automatic switch with romote sensing enemy function |
09/02/1992 | CN1064182A Portable video telephone set |
09/02/1992 | CN1064181A Radio broadcast system |
09/02/1992 | CN1018131B Fmx stereophonic receiver |
09/01/1992 | US5144668 Signal overlap detection in a communication system |