Patents
Patents for H04B 7 - Radio transmission systems, i.e. using radiation field (186,426)
08/1993
08/24/1993US5239668 Satellite signalling system
08/24/1993US5239571 Radio telephone device capable of automatically reconnecting an abnormally terminated communication line
08/24/1993US5239541 Antenna selection diversity reception apparatus
08/24/1993US5239540 Method and apparatus for transmitting, receiving and communicating digital data signals with corresponding program data signals which describe the digital data signals
08/24/1993US5239379 Television signal receiving apparatus
08/21/1993CA2061616A1 Door answering interconnect system utilising either an inside intercom or radio-communication system or a public or private subscriber telephone network, interconnected to an outside or entrance-hall intercom system, including video retrans ission possibilities
08/19/1993WO1993016562A1 Radio link failure
08/19/1993WO1993016527A1 Method and apparatus for ghost cancelling and/or equalizing
08/19/1993WO1993016523A1 Multiple accumulator fractional n synthesis with series recombination
08/19/1993DE4204490A1 AF switching interference suppression circuit for diversity reception - employs either IF or HF wiring from diversity processor to receiver for transmission of suppression pulse between selectors
08/18/1993EP0556010A1 Diversity reception arrangement
08/18/1993EP0555869A2 High rate/low rate bidirectional data transmission apparatus
08/18/1993EP0555596A1 Method for determining the propagation time between a remote terminal station and a central terminal station, in a bidirectional point-to-multipoint transmission system
08/18/1993EP0555595A1 Method of time slot assignment in a time division multiple access transmission system
08/18/1993EP0555441A1 Method for setting up a group call in a cellular radio system.
08/18/1993EP0555289A1 Channel equalisation in particular for fading channels.
08/17/1993US5237592 Control device for radio communicaiton apparatus
08/17/1993US5237570 Prioritized data transfer method and apparatus for a radiotelephone peripheral
08/11/1993EP0554571A1 A two-handset cordless telephone
08/11/1993EP0554386A1 Receiver with battery saver.
08/11/1993EP0541767A4 Enhanced power level usage in a radiotelephone system
08/10/1993US5235633 Cellular telephone system that uses position of a mobile unit to make call management decisions
08/10/1993US5235621 For a mobile telephone
08/10/1993US5235615 Spread spectrum method
08/10/1993US5235327 Paging device with test and scan modes
08/10/1993US5235326 Multi-mode identification system
08/08/1993CA2084474A1 Data transmission in a radiotelephone system
08/07/1993WO1993016548A1 Apparatus and method for alternative radiotelephone system selection
08/07/1993WO1993016532A1 Distributed supervisory control and data acquisition system
08/07/1993CA2129431A1 Distributed supervisory control and data acquisition system
08/05/1993WO1993015591A1 Method and system for planning a cellular radio network
08/05/1993WO1993015573A1 Cdma/tdma communication system
08/05/1993WO1993015565A1 Method in a tdma radiosystem to let a central station communicate with both peripheral stations and other central stations
08/05/1993WO1993015552A1 Modem including an equalizer for amplitude jitter
08/04/1993EP0553952A1 Satellite communications system with reservation protocol using at least three data channels
08/04/1993EP0553873A1 Cross polarization interference compensating device comprising decision feedback cross polarization interference cancellers
08/04/1993EP0553810A1 Vehicle mounted adaptor for a portable radio transceiver
08/04/1993EP0553771A2 Cordless telephone
08/04/1993EP0553713A1 Radio communication system
08/04/1993EP0553537A1 Self correction of PST simulcast system timing
08/04/1993EP0553497A2 Frequency down conversion for a two-handset cordless telephone system using offset intermediate frequencies
08/04/1993EP0502019A4 Improved microcell system for cellular telephone systems
08/04/1993EP0501972A4 Satellite signalling system
08/04/1993EP0500654A4 Zoned microcell with sector scanning for cellular telephone systems
08/04/1993EP0500564A4 Global communication system, receiver and method for operating the same
08/04/1993CN1075037A Power saving method of pager
08/04/1993CN1075036A Offset down conversion for a two-handset cordless telephone system
08/04/1993CN1021758C Mobile assisted handoff
08/03/1993US5233645 Automatic power breaking circuits for communication equipments
08/03/1993US5233643 Method and system network for providing an area with limited bandwidth bi-direction burst personnel telecommunications
08/03/1993US5233634 Automatic gain control circuit in a radio telephone receiver
08/03/1993US5233626 Repeater diversity spread spectrum communication system
08/03/1993US5233358 Antenna beam forming system
08/03/1993CA1320992C Portable pager receiver with message display function
07/1993
07/28/1993EP0552693A2 Method and system for controlling the minimal distance between successive errors in digital radio transmission
07/28/1993EP0552692A1 System for synchronizing mutually interfering signals in digital radio transmissions with frequency re-use
07/28/1993EP0506804B1 Receiver for a digital radiomobile system with cancellation of isofrequency interfering signals having the same kind of modulation, and relevant method
07/28/1993CN1074789A Temp. compensation method for radio frequency power controlling circuit
07/27/1993US5231648 Adaptive equalizer for digital cellular radio
07/27/1993US5231635 Multiplexed transmission system for subscriber units of different types
07/27/1993CA2024353C Volterra linearizer for digital transmission
07/23/1993CA2083779A1 Self correction of pst simulcast system timing
07/22/1993WO1993014590A1 Cdam/tdma spread-spectrum communications system and method
07/22/1993WO1993014588A1 Method and apparatus for the formatting of data for transmission
07/22/1993WO1993014585A1 Frequency synchronized bidirectional radio system
07/22/1993DE4201439A1 High-rate data transmission procedure via digital radio channel - providing multipath propagation compensation by decision feedback equaliser of correctly phased and weighted antenna signal combination
07/21/1993EP0551803A1 A method of synchronizing and channel estimation in a TDMA radio communication system
07/20/1993US5230098 Relay receiver having a variable bandwidth
07/20/1993US5230095 Radio receiver for data communication
07/20/1993US5230092 Read/write device and apparatus and method for reading from and writing into the device
07/20/1993US5230086 Narrow band communication system
07/20/1993US5230080 Ultra-high frequency communication installation
07/20/1993US5230077 Method of reducing the power requirements in a mobile radio receiver
07/20/1993US5230006 Adaptive equalizer capable of effectively removing a remaining fading in an equalized signal
07/20/1993US5229996 Split-window time alignment
07/20/1993CA2001018C Power conservation method and apparatus for a portion of a synchronous information signal
07/14/1993EP0551126A1 Simulcast radio paging system
07/13/1993US5228056 Synchronous spread-spectrum communications system and method
07/13/1993US5228053 Spread spectrum cellular overlay CDMA communications system
07/13/1993US5228029 Cellular tdm communication system employing offset frame synchronization
07/13/1993US5228026 Technique for time-division duplex cordless telecommunication
07/13/1993US5227802 Satellite system cell management
07/10/1993CA2069462A1 Rf repeater arrangement with reduced noise for wireless telephones
07/08/1993WO1993013618A1 Cellular telephone system that uses position of a mobile unit to make call management decisions
07/08/1993WO1993013605A1 Radio communications apparatus with diversity
07/08/1993CA2126574A1 Radio communications apparatus with diversity
07/07/1993EP0550360A1 Lock detector for a phase locked loop
07/07/1993EP0550146A1 Digital block processor for processing a plurality of transmission channels in a wireless radiotelephony system
07/07/1993CN1074067A Realizing method of special radio-call service and products
07/07/1993CN1021534C Zero passage signal homomorphic treating method
07/06/1993CA2029659C Meteor scatter burst communications
07/06/1993CA1320013C Arrangement for transforming data packets into a regular multiplex for a transmission system utilizing the tdma principle
07/06/1993CA1319957C2 Subscriber unit for wireless digital telephone system
06/1993
06/30/1993EP0549451A1 Frequency multiplex apparatus employing digital filters
06/30/1993EP0549220A2 Satellite system cell management
06/30/1993EP0549054A1 Radio-transmission system with central station and a plurality of satellite stations
06/30/1993EP0548939A2 Transmission power control system capable of keeping signal quality constant in mobile communication network
06/30/1993EP0548885A2 TDMA-TDD transmitter-receiver
06/30/1993EP0548819A1 Multiplexing system for plural channels of electromagnetic signals
06/29/1993US5224152 Power saving arrangement and method in portable cellular telephone system