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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07/28/1995 | CA2139707A1 Mobile radio communication apparatus adaptable to power supply voltage change |
07/27/1995 | WO1995020304A1 Device for automatically switching between the electroacoustic transducer(s) of a radio receiver and the audio-frequency output of a radiotelephone, and equipment provided therewith |
07/27/1995 | WO1995020276A1 Process for finding the receivability of radio signals in a radio system |
07/27/1995 | WO1995020273A1 Carry case |
07/27/1995 | WO1995020271A1 Mobile telephone extension units |
07/27/1995 | WO1995019723A1 Carrying device |
07/27/1995 | DE4400865A1 Optimising stereo reproduction in FM receiver |
07/27/1995 | DE19500928A1 Adaptor for hand-held radio device |
07/27/1995 | CA2140793A1 Variable filter |
07/26/1995 | EP0664620A2 Method and device for speech transmission in a radio system |
07/26/1995 | EP0664611A1 Synthesizer radio receiver |
07/26/1995 | EP0664187A1 Grinding tape and method of manufacturing the same |
07/26/1995 | EP0555239B1 Controlling clipping in a microwave power amplifier |
07/26/1995 | CN2204077Y Radio paging alarming arrangement |
07/26/1995 | CN1105789A Automatic gain control apparatus |
07/25/1995 | US5437059 Radio transmitting system having back-up radio receiver operable in response to failure of main feed line |
07/25/1995 | US5437051 Broadband tuning circuit for receiving multi-channel signals over a broad frequency range |
07/25/1995 | US5436941 Spread spectrum spectral density techniques |
07/25/1995 | US5436940 Quadrature mirror filter banks and method |
07/25/1995 | US5436935 Process for synchronizing a receiver switching circuit to a received signal containing a pn-code-spread data signal |
07/25/1995 | US5436934 Differential high frequency level detector and data restoration circuit including squelch offset and slicing offset |
07/25/1995 | US5436931 FSK receiver |
07/25/1995 | US5436899 High performance digitally multiplexed transmission system |
07/25/1995 | US5436887 Digital full-duplex transceiver |
07/25/1995 | US5436851 System for data communication |
07/25/1995 | US5436676 Remote control unit code translation |
07/25/1995 | US5436625 Folding electronic device |
07/25/1995 | US5436618 Multi-apparatus consumer electronics system |
07/25/1995 | US5436088 Battery cradle |
07/25/1995 | CA2070291C Automatic data restoral for modems |
07/20/1995 | WO1995019668A1 A method and system for audio information dissemination using various transmission modes |
07/20/1995 | WO1995019663A1 Radio transceiver circuit and method |
07/20/1995 | WO1995019598A1 Radio frequency control system |
07/20/1995 | WO1995019574A1 Antenna amplifier for receiving frequencies |
07/20/1995 | WO1995015064A3 Low-power frequency-hopped spread spectrum acknowledgement paging system |
07/20/1995 | DE4400668A1 TV receiver, VTR and similar appts. remote control unit |
07/19/1995 | EP0663778A2 Image coding method and apparatus therefor |
07/19/1995 | EP0663749A1 Hands free equipment for a mobile telephone |
07/19/1995 | EP0663741A2 Adaptive digital audio encoding system |
07/19/1995 | EP0663740A2 Apparatus for adaptively encoding input digital audio signals from a plurality of channels |
07/19/1995 | EP0663739A1 Digital signal encoding device, its decoding device, and its recording medium |
07/19/1995 | EP0663735A2 Synthesis subband filter |
07/19/1995 | EP0663734A1 Handheld transceiver |
07/19/1995 | EP0663733A1 Remote control for an electrically operated remote controlled apparatus |
07/19/1995 | EP0663732A2 Circuit and method for determining the type of noise or interference in a FM modulated broadcast signal receiver |
07/19/1995 | EP0663724A2 Automatic antenna tuning method |
07/19/1995 | EP0663120A1 Squelch detector |
07/19/1995 | EP0497801B1 A phase locked loop for producing a reference carrier for a coherent detector |
07/19/1995 | EP0444147B1 Gallium arsenide antenna switch |
07/19/1995 | CN1105510A Method and apparatus for coherent communication in a spread-spectrum communication system |
07/19/1995 | CN1105501A Battery compartment door and latch having longitudinal snaps |
07/18/1995 | US5434893 Component for a differential transmitter-receiver of signals with direct sequence spread spectrum and the corresponding transmitter-receiver |
07/18/1995 | US5434889 Receiver comprising an arrangement for estimating a frequency deviation |
07/18/1995 | US5434849 Duplex modem for processing data needed for cancelling far-end echo canceller |
07/18/1995 | US5434691 Communications system having optical transmission line switching system |
07/18/1995 | US5434579 Inverted F antenna with non-contact feeding |
07/18/1995 | US5434572 System and method for initiating communications between a controller and a selected subset of multiple transponders in a common RF field |
07/18/1995 | CA2058419C Full-duplex, sub-band spread spectrum communications system |
07/18/1995 | CA2052253C Telephone network speech signal enhancement |
07/13/1995 | WO1995019097A1 Vehicular communications system |
07/13/1995 | WO1995019092A1 Consumer interface for a digital television system |
07/13/1995 | WO1995019091A1 A digital television system channel guide having a limited lifetime |
07/13/1995 | WO1995019084A1 Clear channel selection system for a cordless telephone |
07/13/1995 | WO1995019074A2 High-frequency wideband tuner |
07/13/1995 | WO1995019073A2 Receiver having an adjustable bandwidth filter |
07/13/1995 | WO1995019069A1 Power adapter with integral radio frequency port |
07/13/1995 | WO1995019066A1 Waste energy control management for power amplifier |
07/13/1995 | WO1995017058A3 Local communication system including means for displaying messages |
07/13/1995 | WO1995017057A3 Local communication system including means for dividing messages into display field portions |
07/13/1995 | WO1995017056A3 Local communication system including means for time limiting of message displays |
07/13/1995 | CA2157183A1 Waste energy control management for power amplifier |
07/12/1995 | EP0662753A1 Tuning method for automatic antenna couplers |
07/12/1995 | EP0662270A1 Method for synchronising transmitter frequencies in common wave digital audio broadcast |
07/12/1995 | EP0608251B1 Electrical connector module for multi media, broadband and baseband signal cables |
07/12/1995 | EP0580617B1 Radio receiver, especially vehicle radio |
07/11/1995 | US5432855 Stereo and dual audio signal identifying system |
07/11/1995 | US5432854 Stereo FM receiver, noise control circuit therefor |
07/11/1995 | US5432825 Enabling code for radiotransmission of data |
07/11/1995 | US5432816 System and method of robust sequence estimation in the presence of channel mismatch conditions |
07/11/1995 | US5432815 Data modulator-demodulator apparatus of a spread spectrum communication system |
07/11/1995 | US5432814 Spread spectrum communication system |
07/11/1995 | US5432813 Parallel processing based digital matched filter and error detector for a digital demodulator |
07/11/1995 | US5432779 Time division multiplex transmitting/receiving system |
07/11/1995 | US5432676 Electronic apparatus case with wiring member embedded in a molded plastic hinge |
07/11/1995 | US5432562 Television signal reception |
07/11/1995 | US5432522 Cross polarization interference compensating device comprising decision feedback cross polarization interference cancellers |
07/11/1995 | US5432501 Power supply source control apparatus for a satellite broadcast receiver |
07/11/1995 | US5432473 Dual mode amplifier with bias control |
07/11/1995 | CA2042950C Automatic power control circuit for use with a radio telecommunication apparatus |
07/11/1995 | CA2028966C Distortion canceling fiber optic transmission system |
07/06/1995 | WO1995018523A1 Method and apparatus for encoding multibit coded digital sound through subtracting adaptive dither, inserting buried channel bits and filtering, and encoding and decoding apparatus for use with this method |
07/06/1995 | WO1995018491A2 Data communication device |
07/06/1995 | WO1995018490A1 Communications device |
07/06/1995 | WO1995018486A1 A wireless digital synchronized diversity receiver |
07/06/1995 | DE4447142A1 Sendereferenzoszillator eines VSAT für Satellitenkommunikation Transmission reference oscillator of a VSAT satellite communications |
07/05/1995 | EP0661873A1 A video-signal transmitter-receiver and a signal transmission apparatus utilizing the same |
07/05/1995 | EP0661860A2 Background noise compensation in a telephone network |
07/05/1995 | EP0661835A2 Digital radio communication system |
07/05/1995 | EP0661831A2 DS/CDMA Receiver using parallel-operating multi-purpose correlators |
07/05/1995 | EP0661830A2 Synchronization acquisition and tracking for a direct sequence spread spectrum receiver |