Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › 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
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)
08/1996
08/20/1996US5548243 Demodulator for demodulating a single side band signal, a real zero single side band signal and a frequency modulated signal, and a carrier signal reproducing circuit for the demodulator
08/20/1996US5548239 Radio receiver-transmitter apparatus and signal changeover switch
08/20/1996CA2110301C Detector
08/20/1996CA2100754C Variable bandwidth cdma radio system
08/20/1996CA2096832C Method and apparatus for paging in a communication system
08/18/1996CA2169693A1 Wireless coupled adapter for decoding information from a broadcast signal to which a radio is tuned
08/15/1996WO1996024991A1 Remote listenership monitoring system
08/15/1996WO1996024988A1 Receiver and method for generating spreading codes in a receiver
08/15/1996WO1996024986A1 Crystal oscillator with automatic compensation for aging and temperature
08/15/1996WO1996024984A1 Method and apparatus for parking a combiner filter and activating an alternate combiner filter at a radio base station
08/14/1996EP0726688A1 Radio telephone
08/14/1996EP0726687A1 Radio telephone
08/14/1996EP0726660A1 FM receiver receiving supplementary data in a broadcast programme with data storage and display means
08/14/1996EP0726659A2 Spread spectrum code detection apparatus
08/14/1996EP0726658A2 Symbol and frame synchronization in both a TDMA system and a CDMA system
08/14/1996EP0726657A1 Communication terminal
08/14/1996EP0726656A1 Noise cancelling circuit and arrangement
08/14/1996EP0726648A1 Tuning circuit for a receiver apparatus particularly a television receiver
08/14/1996EP0726646A1 Frequency converter capable of reducing noise components in local oscillation signals
08/14/1996EP0726508A1 Real time clock suitable for a mobile telephone
08/14/1996EP0726000A1 Wideband fft channelizer
08/14/1996EP0725999A1 Method for eliminating mutliple-access interference and a mobile station
08/14/1996CN2233136Y Controller of shortwave transceiver
08/14/1996CN1129051A Multiplex receiver and multiplex receiving system broadcasting
08/14/1996CN1129047A Method and apparatus for subscriber power level adjustment in communication system
08/14/1996CN1128924A Transmitter
08/14/1996CN1128916A Method and device for improving efficiency of amplitude
08/14/1996CN1128907A Portable radio receiving set with built-in aerial
08/13/1996US5546429 Frequency hopping code division multiple access radio communication unit
08/13/1996US5546422 Method of transmitting low-power frequency hopped spread spectrum data
08/13/1996US5546421 Communication station
08/13/1996US5546420 Methods of and devices for enhancing communications that use spread spectrum technology by using variable code techniques
08/13/1996US5546383 Modularly clustered radiotelephone system
08/13/1996US5546273 Automotive audio system
08/13/1996US5546094 Telescopic antenna for portable telephones
08/13/1996US5546051 Power amplifier and power amplification method
08/13/1996US5545511 Millimeter wave device and method of making
08/08/1996WO1996024224A1 A receiver with reduced current drain
08/08/1996WO1996024206A1 Data transmission method, transmitter, and receiver
08/08/1996WO1996024200A1 Method to realize discontinuous transmission in a mobile phone system
08/08/1996WO1996024198A1 Spectrum spreading communication device and communication system
08/08/1996WO1996024197A1 Selective call receiver in a battery of a two-way communication device
08/08/1996WO1996024196A1 Method of error protected transmission, method of error protected reception of data and transmission system for transmission of data
08/08/1996WO1996024098A2 Circuit arrangement comprising a permutation unit and method of processing a batch of items
08/08/1996WO1996016524A3 Pilot signal searching technique for a cellular communications system
08/08/1996DE19506117C1 Process for determination of pulse word in signal transmission channels
08/08/1996CA2211089A1 Selective call receiver in a battery of a two-way communication device
08/07/1996EP0725520A2 Method for transmitting digital data
08/07/1996EP0725519A2 Method for combined transmission of digital source and control data between data sources and sinks linked by data transmission lines
08/07/1996EP0725505A1 Broadcast receiver for receiving, managing and displaying digitally coded traffic information
08/07/1996EP0725504A2 Radio data system receiver with a means for displaying digitally coded traffic information
08/07/1996EP0725503A1 Method for receiving and outputting broadcast programmes with supplementary digital information and broadcast receiver for displaying digital information of other broadcast programmes
08/07/1996EP0725502A2 Method for decoding and displaying received digitally coded traffic broadcast information
08/07/1996EP0725499A1 Transmitter-receiver
08/07/1996EP0725496A1 Frequency offset cancellation apparatus
08/07/1996EP0725495A2 Tone-in-band communication system with offset pilot tone
08/07/1996EP0725494A1 Perceptual audio compression based on loudness uncertainty
08/07/1996EP0725493A2 A method of window switching in an audio coder
08/07/1996EP0725492A2 Perceptual stereo audio encoder
08/07/1996EP0725490A2 Control apparatus for recording and reproducing apparatus
08/07/1996EP0725489A1 Broadcasting station data detecting apparatus for a mobile body and broadcast receiving apparatus for mobile bodies
08/07/1996EP0725488A2 Data receiving system for receiving data signal faded and delayed
08/07/1996EP0725457A1 Integral type flat antenna provided with converter function
08/07/1996EP0725385A2 Sub-band audio signal synthesizing apparatus
08/07/1996EP0724815A1 Radiotelephone system for groups of remote subscribers
08/07/1996EP0724415A1 Single and multiple channel block adaptive methods and apparatus for active sound and vibration control
08/07/1996CN1128606A System and method for mobile communications in coexistence with established communications systems
08/07/1996CN1128605A A method for validating a communication link
08/07/1996CN1128594A A method and apparatus for receiving and decoding communication signals in a CDMA receiver
08/07/1996CN1128474A Portable communication apparatus preventing trouble when battery wears
08/07/1996CN1128452A Telephone and cordless telephone capable of suppressing spurious interference 21678/01
08/07/1996CN1128445A Noise suppressing device
08/07/1996CN1128441A Portable radio apparatus
08/07/1996CN1128438A Method for encoding a digital audio signal
08/07/1996CA2167967A1 Perceptual audio compression based on loudness uncertainty
08/07/1996CA2167966A1 Tonality for perceptual audio compression based on loudness uncertainty
08/07/1996CA2166928A1 Radio communication device having a moveable housing element and a keypad disposed therein
08/07/1996CA2166763A1 Radio communication device with moveable housing element control
08/06/1996US5544247 Transmission and reception of a first and a second main signal component
08/06/1996US5544199 Non-adaptive phase-difference interference filter
08/06/1996US5544196 Apparatus and method for reducing message collision between mobile stations simultaneously accessing a base station in a CDMA cellular communications system
08/06/1996US5544167 Transmission method for CDMA radiotelephone communications, and apparatuses for implementing such method
08/06/1996US5544164 In a communications network
08/06/1996US5544159 Duplex interconnect/dispatch trunked radio
08/06/1996US5544156 Direct sequence CDMA coherent uplink detector
08/06/1996US5544155 Method of synchronization for code division multiple access radiotelephone communications
08/06/1996US5544130 Electronic equipment operating in multiple modes and control method thereof
08/06/1996US5543742 Phase shifting circuit
08/06/1996CA2066851C Multiple user digital receiver apparatus and method with combined multiple frequency channels
08/01/1996WO1996023381A1 Transmitter/receiver device for a mobile radio-telephone system
08/01/1996WO1996023366A1 A method and circuit for creating a modulated signal in a transceiver
08/01/1996WO1996023354A1 Wide frequency spectrum television tuner with single local oscillator
08/01/1996WO1996023327A1 Hand-held communication equipment with a radiation shielding antenna apparatus
08/01/1996WO1996023308A1 Improvements in an apparatus and method of use of radiofrequency identification tags
08/01/1996DE19600404A1 Speech detector with system to eliminate background noise
08/01/1996DE19546577A1 Datenübertragungsverfahren Data transmission method
08/01/1996DE19502654A1 Wireless data transmission between receiver and measuring station esp. for weather or environmental data
08/01/1996DE19502652A1 Reducing EM signal effect on human when using mobile radio appts
08/01/1996CA2185901A1 Improvements in an apparatus and method of use of radiofrequency identification tags
08/01/1996CA2168401A1 Communications display system
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