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