| 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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| 03/16/1994 | EP0587387A2 Digital signal decoding apparatus |
| 03/16/1994 | EP0587129A1 Receiver for digital mobile communications |
| 03/16/1994 | EP0586827A1 Portable radio communication apparatus |
| 03/16/1994 | EP0586656A1 Communications system with extended channels |
| 03/16/1994 | EP0586652A1 A method for communication in a tdma cellular mobile radio system using frequency hopping |
| 03/16/1994 | EP0586635A1 Radio telephone |
| 03/16/1994 | EP0586634A1 Radio telephone |
| 03/16/1994 | EP0586548A1 Radio frequency error detection and correction system. |
| 03/16/1994 | EP0586492A1 System for automatic identification of objects or individuals by remote interrogation. |
| 03/16/1994 | EP0586374A1 Method and apparatus for synchronizing simulcast systems |
| 03/16/1994 | CN1083996A Negative feedback control circuit having a common line for input and output signals |
| 03/16/1994 | CN1083947A Clock generator capable of shut-down mode and clock generation method |
| 03/15/1994 | US5295186 Termination circuit for a two-wire transmission line |
| 03/15/1994 | US5295156 Modem |
| 03/15/1994 | US5295154 Radio frequency local area network |
| 03/15/1994 | US5295151 Transition detection circuit for PSK signals using the SAW Chirp-Z algorithm (U) |
| 03/15/1994 | US5294931 Method of interrogating a plurality of transponders arranged in the transmission range of an interrogating device and transponders for use in the said method |
| 03/15/1994 | US5294925 Data compressing and expanding apparatus with time domain and frequency domain block floating |
| 03/15/1994 | CA2054198C Communications system using spread spectrum and leaky transmission line |
| 03/15/1994 | CA2014865C Radio communication apparatus having a simple structure |
| 03/15/1994 | CA2004860C Efficient digital frequency division multiplexed signal receiver |
| 03/12/1994 | CA2105145A1 Receiver for digital mobile communications |
| 03/10/1994 | DE4329693A1 Satellite transmission receiver with microstrip input stage - has alternate circuit configurations for different types of tuner on same circuit board. |
| 03/10/1994 | DE4327117A1 Satellite antenna signal distributor - uses series circuit of stripline directional couplers supplying respective subscribers |
| 03/10/1994 | DE4229372A1 Quantisation information transmission system with reduced bit rate source coding - provides index information dependent on quantisation information type transmitted alongside quantised digital tone signals. |
| 03/09/1994 | EP0586170A1 A mobile radio communications unit |
| 03/09/1994 | EP0585693A2 A communications system |
| 03/09/1994 | EP0585434A1 Filtering method and device for reducing digital audio signal pre-echoes |
| 03/09/1994 | EP0354225B1 Process for adapting the frequency band of an oscillating circuit made from a metal-plastic-metal sandwich foil useful as an identification label |
| 03/09/1994 | CN2158600Y Multi-function transceiver |
| 03/09/1994 | CN1083639A Integrated circuit and cordless telephone using the integrated circuit |
| 03/09/1994 | CN1023956C Method for jointly building short wave transmit-receive station |
| 03/08/1994 | US5293639 Reduction of power consumption in a portable communication unit |
| 03/08/1994 | US5293408 FSK data receiving system |
| 03/08/1994 | US5293398 Digital matched filter |
| 03/08/1994 | US5293358 Apparatus and method for generation of integrated composite audio-visual works |
| 03/08/1994 | US5293298 Electrical connector |
| 03/08/1994 | US5293273 Voice actuated recording device having recovery of initial speech data after pause intervals |
| 03/08/1994 | CA2014917C Miniature mobile radio communication equipment having a shield structure |
| 03/08/1994 | CA2001775C Mobile telephone system with intermittent control of receiver components in standby state |
| 03/03/1994 | WO1994005090A1 Identification apparatus |
| 03/03/1994 | WO1994005087A1 A direct conversion receiver for multiple protocols |
| 03/03/1994 | DE4227502A1 Receiver for amplitude sampled time character signals - with two input amplifiers selectively switched in to select reception frequency for optimum sensitivity |
| 03/03/1994 | CA2141838A1 Identification apparatus |
| 03/02/1994 | EP0585169A1 Method for using remote control signals, remote control unit and related functional units and installation |
| 03/02/1994 | EP0585132A1 Synchronised electronic identification system |
| 03/02/1994 | EP0584912A1 Receiver using a matched filter and a median filter |
| 03/02/1994 | EP0584839A1 Method for the use at the reception end of additional information within a radio signal |
| 03/02/1994 | EP0584719A1 Control circuit for a spatial stereo expander |
| 03/02/1994 | EP0584718A1 Switched signal processing circuit |
| 03/02/1994 | EP0584554A2 Circuitry for the supply of operating voltage of a car radio |
| 03/02/1994 | EP0584538A1 Fastening clip for a portable electronic apparatus |
| 03/02/1994 | EP0584312A1 Rf power amplifier with linearizattion |
| 03/02/1994 | EP0584248A1 Dual mode transmitter and receiver |
| 03/02/1994 | CN1083288A Method of and apparatus for radio communicatuion amongst base and mobile terminal employing meter scatter |
| 03/01/1994 | US5291542 Mobile telephone having a power-conserving subroutine |
| 03/01/1994 | US5291517 Carrier freuency corrector for a DSSS communication system |
| 03/01/1994 | US5291516 Dual mode transmitter and receiver |
| 03/01/1994 | US5291515 Spread spectrum communication device |
| 03/01/1994 | US5291475 Slot hopped FD/TD/CDMA |
| 03/01/1994 | US5291474 Procedure for forming frequencies of a digital radio telephone |
| 03/01/1994 | US5291343 Audio/video system for television receiver, video cassette recorder, and so forth |
| 03/01/1994 | US5291325 Remote control unit with unitary crystal and button |
| 03/01/1994 | US5291147 Power booster for a radio telephone |
| 03/01/1994 | CA1327386C2 Medium frequency mine communication system |
| 02/24/1994 | DE4303903A1 Radio receiver for SSB reception from DSB AM transmitter - provides equalising compensation by removing interference from DSB oscillation to be evaluated from mixt. or DSB oscillations |
| 02/23/1994 | EP0583967A2 Decoding using a linear metric and interference estimation |
| 02/23/1994 | EP0583798A1 Optical communication system having an improved protection line switching mechanism |
| 02/23/1994 | EP0583523A2 Pager with reverse paging facility |
| 02/23/1994 | EP0583522A2 Remote position determination system |
| 02/23/1994 | EP0583306A1 Device and method for adjusting a bandpass filter, especially a combiner filter. |
| 02/23/1994 | EP0583241A1 Spread spectrum correlator |
| 02/23/1994 | EP0417149B1 Fm radio reception unit |
| 02/23/1994 | CN2157634Y Voice memory beeper |
| 02/23/1994 | CN2157631Y Simplex channel duplex switching device |
| 02/23/1994 | CN2157630Y Antiradiation protection safety cover for hand telephone |
| 02/23/1994 | CN1082801A Data separation processing in a digital television system |
| 02/23/1994 | CN1082786A Method and circuit for selecting tuning of a radio receiver |
| 02/23/1994 | CN1082784A Data compression system using source representation |
| 02/22/1994 | US5289589 Automated storage library having redundant SCSI bus system |
| 02/22/1994 | US5289543 FM receiver and communication systems including same |
| 02/22/1994 | US5289527 Mobile communications device registration method |
| 02/22/1994 | US5289498 Adaptive data recovery for spread spectrum systems |
| 02/22/1994 | US5289496 Method and system for radio communication |
| 02/22/1994 | US5289391 Method and apparatus for optimum signal burst detection |
| 02/22/1994 | US5289378 Vehicle lan with adapters for coupling portable data terminals |
| 02/22/1994 | US5289285 CS broadcast receiving system providing increased tuning accuracy when reciving a CS sound broadcast signal |
| 02/22/1994 | US5289199 Antenna resonant circuit |
| 02/22/1994 | US5289194 Combiner for two dimensional adaptive interference suppression system |
| 02/22/1994 | US5289142 Transmit/receive switch for phased array antenna |
| 02/22/1994 | US5289044 Electronic system switchable between its primary circuit and standby circuit |
| 02/17/1994 | WO1994003990A1 Isolation interface apparatus |
| 02/17/1994 | WO1994003989A1 Spread spectrum communication system particularly suited for rf network communication |
| 02/17/1994 | WO1994003984A1 Data compression system using source representation |
| 02/17/1994 | WO1994003982A1 Identification device |
| 02/17/1994 | WO1994003981A1 Radio having a combined pll and afc loop and method of operating the same |
| 02/17/1994 | CA2141669A1 Data compression system using source representation |
| 02/17/1994 | CA2140871A1 Identification device |
| 02/17/1994 | CA2139227A1 Spread spectrum communication system particularly suited for rf network communication |
| 02/16/1994 | EP0583175A1 Emission tube excitation stage for a short wave transmitter |