Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 7 - Radio transmission systems, i.e. using radiation field
Patents for H04B 7 - Radio transmission systems, i.e. using radiation field (186,426)
11/1993
11/24/1993CN1022881C Operation method of communications systems
11/23/1993US5265270 Method and apparatus for providing power conservation in a communication system
11/23/1993US5265262 Single channel remote site trunking
11/23/1993US5265150 Automatically configuring wireless PBX system
11/23/1993US5265122 In a communication system
11/23/1993US5265119 Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system
11/18/1993EP0570325A1 Portable communication terminal
11/18/1993EP0570166A1 Interference detection and cancellation system and method
11/18/1993EP0569693A1 Spectrum recovery apparatus and method therefor
11/18/1993EP0569688A1 Method and apparatus for fading compensation for TDMA-receivers
11/18/1993EP0569559A1 Improved gsm interference band selection and reduced power handover
11/18/1993EP0569486A1 A communication system capable of adjusting transmit power of a subscriber unit
11/18/1993EP0569440A1 Cell-site simulator for mobile communication systems
11/18/1993DE4216016A1 Telecommunication transmission satellite system - provides continuous transmission in range of latitude of most developed countries and regular periodic transmission to other areas
11/18/1993DE4215730A1 Cellular time division radio system - carries out automatic synchronisation of radio transmitters using received data telegrams
11/17/1993CN1078584A Method for delivering information using frequency modulation broadcasting
11/16/1993US5263182 Low-noise block converter for a satellite broadcasting system
11/16/1993US5263180 Space diversity reception system
11/16/1993US5263175 Diversity repeater diagnostic method and apparatus
11/16/1993US5263045 Spread spectrum conference call system and method
11/16/1993US5263026 Maximum likelihood sequence estimation based equalization within a mobile digital cellular receiver
11/16/1993US5263017 Digital radio transmission system
11/16/1993US5262788 Device and method for data transmission and/or acquisition using two cross polarizations of an electromagnetic wave and magnetic recording device
11/16/1993CA1324411C Method of transmitting call information in a short range mobile telephone system and a radio unit for carrying out the method
11/13/1993CA2094842A1 Intrusion detection and cancellation system and method
11/11/1993WO1993022883A1 Radio system
11/10/1993EP0568778A2 Call processing using logical channel assignments
11/10/1993EP0294413B1 Steerable beam antenna system using butler matrix
11/10/1993CN2146088Y Power amplification protection alarm for radio station
11/09/1993US5261121 Portable radio transceiver system having improved adaptor and/or improved receiver signal control arrangement
11/09/1993US5261120 Method and apparatus for transmitting a signal with an offset which follows a received signal
11/09/1993US5261118 Simulcast synchronization and equalization system and method therefor
11/09/1993US5260989 Method and system for enhanced data transmission in a cellular telephone system
11/09/1993US5260988 Apparatus and method for alternative radiotelephone system selection
11/09/1993US5260973 For processing a baseband input signal and carrier signal
11/09/1993US5260967 CDMA/TDMA spread-spectrum communications system and method
11/09/1993CA2005399C Double-stage phase-diversity receiver
11/07/1993CA2095489A1 Spectrum extension protocol for second generation cordless telephone
11/03/1993EP0568516A2 A system and method for controlling the transmission of bursts of digital information
11/03/1993EP0568507A1 Method and arrangement for reducing fading between a base station and mobile units
11/03/1993EP0568429A1 Regenerator for digital framed signals, useful in particular in digital transmission equipment for radio waves
11/03/1993EP0568393A2 Radio communication apparatus
11/03/1993EP0568291A2 Digital signal processing apparatus with three modulation (TDM,FDM,CDM)sub-systems in parallel
11/03/1993EP0568066A1 A method of interrogating a plurality of transponders arranged in the transmission range of an interrogating device and transponders for use in the said method
11/03/1993EP0567905A2 A bidirectional data transmission system between a beacon and a vehicle
11/03/1993EP0567888A2 Communication system for data transmission between a mobile and a beacon
11/03/1993EP0567771A2 Method, transmitter and receiver for the transmission of information with a variable traffic flow and a central station for the coordination of the different senders and receivers
11/03/1993EP0567638A1 Adaptive power control for a spread spectrum communications system and method
11/03/1993EP0567459A1 Antenna pattern selection for optimized communications and avoidance of people
11/03/1993CN2145481Y Multifrequency point relay controllor
11/02/1993WO1993022846A1 Wireless device
11/02/1993US5259005 Apparatus for and method of synchronizing a clock signal
11/02/1993CA2095284A1 Method of and apparatus for two-way radio communication amongst fixed base and mobile terminal users employing meteor scatter signals for inbound communications from the mobile terminals and outbound communications from the base terminals via loran communication signals combined with loran navigational transmissions
10/1993
10/29/1993CA2094994A1 Frame digital signal regenerator, particularly for a microwave digital communications installation
10/29/1993CA2094771A1 Transmitter network with a single transmitter frequency
10/28/1993WO1993022844A1 A method for eliminating accoustic echo in a communication device
10/28/1993WO1993021739A1 Mobile assisted handover using cdma
10/28/1993WO1993021721A1 Speech recognition system for electronic switches in a cellular telephone or personal communications network
10/28/1993WO1993021705A1 Calling channel in a cdma communications system
10/28/1993WO1993021700A1 Duplex power control
10/28/1993WO1993021699A1 Cdma frequency allocation
10/28/1993WO1993021698A1 Tdma for mobile access in a cdma system
10/28/1993WO1993021693A1 Frequency offset method and apparatus for use in a transceiver
10/28/1993WO1993021692A1 Random access in mobile telephone systems
10/28/1993CA2111703A1 Mobile assisted handover using cdma
10/28/1993CA2111000A1 Random access in mobile telephone systems
10/27/1993EP0567211A2 Adaptive receiver for multipath fading channels
10/27/1993EP0567068A1 Speech signal encoder/decoder device in mobile communication
10/27/1993EP0566874A2 Cellular mobile radio system
10/27/1993EP0554386A4 Receiver with battery saver
10/27/1993EP0343189B1 Tdma communications system with adaptive equalization
10/27/1993CN1077834A Zellulares mobilfunksystem
10/26/1993US5257415 Automatic transmission level control device
10/26/1993US5257397 Mobile data telephone
10/26/1993US5257283 Spread spectrum transmitter power control method and system
10/26/1993US5257265 Method and apparatus for reducing multipath distortion
10/26/1993US5257219 Spectrum equalization arrangement
10/26/1993US5257029 Transmission power control method and apparatus in satellite communication
10/26/1993US5257019 Satellite selective call signalling system
10/25/1993WO1993022881A1 Method and apparatus for determining signal transmission quality levels of a transmitted signal
10/23/1993CA2094549A1 Segregation method of dynamic channel allocation in a mobile radio system
10/20/1993EP0566551A2 Mobile assisted handover using CDMA
10/20/1993EP0566550A2 Calling channel in CDMA mobile communications system
10/20/1993EP0566257A1 Method and apparatus for providing antenna diversity
10/20/1993EP0557297A4 Method and apparatus for modulating and dectecting a subcarrier signal for an inductively coupled transponder
10/20/1993CN1077579A Frequency offset method and apparatus for use in a transceiver
10/20/1993CN1077578A Page receiver
10/19/1993US5255210 Self-coherence restoring signal extraction apparatus and method
10/19/1993CA1323426C Device for receiving and processing road information
10/18/1993CA2094077A1 Diversity antenna having an electric field antenna and a magnetic field antenna
10/16/1993CA2066112A1 Satellite signalling system having a signal beam with a variable beam area
10/14/1993WO1993020664A1 Method and apparatus for a radio remote repeater in a digital cellular radio communication system
10/14/1993WO1993020628A1 Slot hopped fd/td/cdma
10/14/1993WO1993020625A1 A base station for a frequency hopping tdma radio communication system
10/14/1993DE4213783C1 Radio communication network measuring data with fault detection - detects communication path failure to switch to alternate communication path configuration or radio frequency
10/13/1993EP0565507A2 Power control for random access call set-up in a mobile telephone system
10/13/1993EP0565505A2 Duplex power control in a cellular mobile radio telephone system
10/13/1993EP0565127A2 TDMA mobile unit frequency synthesizer having power saving mode during transmit and receive slots
10/13/1993EP0565046A2 TDMA network and protocol for reader-transponder communications and method
10/13/1993EP0565016A1 Low profile eliptically polarised antenna
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