Patents
Patents for H04B 7 - Radio transmission systems, i.e. using radiation field (186,426)
08/1995
08/09/1995EP0666001A1 Process and arrangement for antenna diversity selection in the receiving device of a cordless telephone system
08/09/1995EP0666000A1 Process and arrangement for antenna diversity selection in a radio emitter/receiver of a cordless telephone system
08/09/1995EP0619054B1 Radio communications apparatus with diversity
08/09/1995CN1106602A Automatic information service system based on telephone
08/09/1995CN1106598A Intermediate frequency combiner for a radio communication system
08/09/1995CN1106596A Electronic mapped GPS receiver
08/09/1995CA2138819A1 Portable security device
08/08/1995US5440758 Method of preventing unauthorized access to a wireless communication system
08/08/1995US5440590 Method and apparatus for producing a usable signal from received diverse modulated signals
08/08/1995US5440562 Communication through a channel having a variable propagation delay
08/08/1995US5440561 Method for establishing frame synchronization within a TDMA communication system
08/08/1995US5440544 Integrated data link concept for air traffic control applications
08/08/1995US5440542 Method and apparatus for multiplexing control information into a user signal stream of a CDMA cellular system
08/08/1995US5440267 Demodulator
08/08/1995US5440109 Automatic toll ticketing system
08/08/1995US5439190 Medium-earth-altitude satellite-based cellular telecommunications
08/03/1995WO1995020865A1 Semi-hard handoff in a cellular telecommunications system
08/03/1995WO1995020844A1 Method and apparatus for a radio communication system
08/03/1995WO1995020842A1 Method and system for demodulation of downlink cdma signals
08/03/1995WO1995020805A1 Method and apparatus for energy conservation in a communication system
08/03/1995CA2141520A1 Multi-channel communications network utilizing an improved channel selection method
08/02/1995EP0665665A1 Method and device enabling a modem to synchronize on a transmitter of digital data via a radio channel in the presence of interferences
08/02/1995EP0665662A1 Reception field detection apparatus
08/02/1995EP0665659A2 TDMA-CDMA mobile communication system
08/02/1995EP0665658A2 Portable radio communication device
08/02/1995EP0665657A2 Power amplifier for radio transmitter and dual mode remote radio
08/02/1995EP0665655A2 Cellular phone with infrared interface in the battery pack
08/02/1995EP0665444A1 Battery capacity detector
08/02/1995EP0664940A1 Rf repeaters for time division duplex cordless telephone system.
08/02/1995EP0664939A1 If signal combiner for minimizing the ber in a space or angle diversity digital radio receiver.
08/02/1995EP0664938A1 Method and apparatus for transmission path delay measurements using adaptive demodulation
08/02/1995EP0504275B1 Process and device for transmitting video signals in a confined medium
08/02/1995CN1106182A Monitoring method and system for embezzling honeycomb wireless telephone
08/02/1995CN1029446C Device for evaluating and/or regulating throughput of virtual circuits on asynchronous time-division multiplex transmission channel
08/02/1995CN1029445C Satellite signalling system having signal beam with variable beam area
08/01/1995US5438701 Mobile radio apparatus
08/01/1995US5438695 Radio-link continuity keeping equipment in cellular telephone mobile station
08/01/1995US5438684 Radio frequency signal power amplifier combining network
08/01/1995US5438610 Method for establishing a communication link between a ground-base caller and a passenger on board an aircraft
08/01/1995US5438590 Transmitting and receiving apparatus and method including punctured convolutional encoding and decoding
08/01/1995US5438576 Data communication apparatus and method including means for and step of adding dummy character as a new last character of data to be transmitted
08/01/1995CA2141483A1 Selective calling receiver for computing devices
08/01/1995CA2141401A1 Battery capacity detector
08/01/1995CA2025636C Dual polarization transmission system
08/01/1995CA1336519C High capacity sectorized cellular communication system
07/1995
07/28/1995CA2139707A1 Mobile radio communication apparatus adaptable to power supply voltage change
07/27/1995WO1995020277A1 Method and apparatus for simultaneous wideband and narrowband wireless communication
07/27/1995WO1995020274A1 One-way mobile telephone network cell expander device, and related network
07/27/1995DE4400888A1 Localised communications system for vehicles
07/26/1995EP0664187A1 Grinding tape and method of manufacturing the same
07/26/1995EP0664008A1 Method and apparatus for tracking the position and velocity of airborne instrumentation
07/26/1995CN1105790A System for a dynamically alternating radio station
07/26/1995CN1105789A Automatic gain control apparatus
07/25/1995US5437057 Wireless communications using near field coupling
07/25/1995US5437055 Antenna system for multipath diversity in an indoor microcellular communication system
07/25/1995US5436956 Method and arrangement for reducing the number of handoff requests in a cellular mobile communications system
07/25/1995US5436942 Method of equalizing digitally encoded signals transmitted in a plurality of non-contiguous time slots
07/25/1995US5436929 Decision feedback equalizer device and method for the block transmission of information symbols
07/25/1995US5436904 Mobile communication system
07/25/1995US5436900 Transcoder and improved land system for a mobile radio communication system
07/25/1995US5436582 Comparator device for selecting received signals
07/25/1995CA2020625C Method and arrangement for dynamically allocating time slots to connections in a digital mobile radio system
07/25/1995CA2010472C Diversity receiver arrangement for digital signals
07/20/1995WO1995019666A1 Satellite receiver system having doppler frequency shift tracking
07/20/1995WO1995019665A1 Tetherless access to communication networks
07/20/1995WO1995019664A1 Method of transmitting and receiving power control messages in a cdma cellular radio system
07/20/1995WO1995015064A3 Low-power frequency-hopped spread spectrum acknowledgement paging system
07/19/1995EP0663777A2 Arrangement in a DECT system for synchronizing a virtual base station with a central base station
07/19/1995EP0663766A1 Equalization apparatus with a fast updating operation of the filter coefficients
07/19/1995EP0663764A1 Equalization apparatus with a fast updating operation of the filter coefficients
07/19/1995EP0663736A1 User paging for mobile satellite communications
07/19/1995CN1105510A Method and apparatus for coherent communication in a spread-spectrum communication system
07/18/1995US5434905 Digital cordless telephone set operated under burst synchronization
07/18/1995US5434889 Receiver comprising an arrangement for estimating a frequency deviation
07/18/1995US5434884 Apparatus and method for equalizing for amplitude jitter
07/18/1995US5434850 Satellite communication network
07/18/1995US5434847 Random access satellite communication system using random numbers generated in a range variable with channel traffic
07/18/1995US5433726 Medium-earth-altitude satellite-based cellular telecommunications system
07/13/1995WO1995019094A1 Position registration for cellular satellite communication systems
07/13/1995WO1995019079A1 Tdma/fdma/cdma hybrid radio access methods
07/13/1995WO1995019078A1 A cellular/satellite communications system with improved frequency re-use
07/13/1995WO1995019071A1 Tdma communication system
07/13/1995WO1995019066A1 Waste energy control management for power amplifier
07/13/1995CA2157183A1 Waste energy control management for power amplifier
07/13/1995CA2157182A1 A cellular/satellite communications system with improved frequency re-use
07/13/1995CA2156738A1 Position registration for cellular satellite communication systems
07/12/1995EP0662776A2 Cell-extension in a TDMA-cellular radiocommunicationsystem
07/12/1995EP0662775A1 TDMA/FDMA/CDMA hybrid radio access methods
07/12/1995EP0662758A2 Position registration for cellular satellite communication systems
07/12/1995EP0617861B1 Process for improving the coverage of radio cells in a cellular mobile radio system and device for implementing it
07/12/1995CN1105167A Voice automatic calling system
07/11/1995US5432825 Enabling code for radiotransmission of data
07/11/1995US5432819 DPSK communications with Doppler compensation
07/11/1995US5432779 Time division multiplex transmitting/receiving system
07/11/1995US5432778 Method and an arrangement for frame detection quality estimation in the receiver of a radio communication system
07/11/1995US5432524 Drive arrangement for mechanically-steered antennas
07/11/1995US5432522 Cross polarization interference compensating device comprising decision feedback cross polarization interference cancellers
07/11/1995US5432521 Satellite receiver system having doppler frequency shift tracking
07/11/1995US5432501 Power supply source control apparatus for a satellite broadcast receiver
07/11/1995CA2047284C Demodulator and polarization diversity receiver for coherent optical communication provided with the demodulator