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