Patents
Sitemap › H04 - Electric communication technique › H04W - Wireless communication networks › H04W 4 - Services or facilities specially adapted for wireless communication networks
Patents for H04W 4 - Services or facilities specially adapted for wireless communication networks (113,132)
12/1986
12/03/1986EP0110888B1 A cordless telephone system
12/02/1986US4626845 Subscriber validation system
10/1986
10/15/1986EP0128209B1 Method of setting radio transmitters for synchronous radio transmission
10/15/1986CN86100949A Subscriber rf telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of rf channels
09/1986
09/24/1986EP0195044A1 Radio trunking system with transceivers and repeaters using special channel acquisition protocol
09/17/1986EP0128210B1 Method and apparatus for synchronizing radio transmitters for synchronous radio transmission
09/03/1986EP0193316A1 Mobile telephone system for automatically paging absent mobile subscriber
07/1986
07/17/1986WO1986004199A1 Dispatch trunked radio system
07/09/1986CN85107963A Duplex interconnect/dispatch trunked radio system
06/1986
06/19/1986WO1986003635A1 Duplex interconnect/dispatch trunked radio system
03/1986
03/27/1986WO1986001957A1 Radio trunking system with transceivers and repeaters using special channel acquisition protocol
03/25/1986US4578815 Wide area coverage radio communication system and method
01/1986
01/28/1986CA1200030A1 Cordless key telephone system employing infrared transmission
01/16/1986WO1986000481A1 Radio communications system
12/1985
12/18/1985EP0164401A1 Improved wide area coverage ratio communications system and method
06/1985
06/20/1985WO1985002745A1 Improved wide area coverage ratio communications system and method
03/1985
03/27/1985EP0135196A2 Mobile radio communication system
12/1984
12/19/1984EP0128210A1 Method and apparatus for synchronizing radio transmitters for synchronous radio transmission.
12/19/1984EP0128209A1 Method of setting radio transmitters for synchronous radio transmission.
11/1984
11/27/1984US4485270 Method for transmitting a charging signal
06/1984
06/26/1984US4456793 Cordless telephone system
06/21/1984WO1984002437A1 Method and apparatus for synchronizing radio transmitters for synchronous radio transmission
06/21/1984WO1984002436A1 Method of setting radio transmitters for synchronous radio transmission
06/20/1984EP0110888A1 A cordless telephone system.
02/1984
02/07/1984US4430755 Portable radio telephone
12/1983
12/22/1983WO1983004462A1 A cordless key telephone system employing infrared transmission
08/1983
08/16/1983US4399330 Communications system, in particular a telephone system, for connecting mobile subscriber terminal devices
04/1983
04/13/1983EP0076645A1 Method of and apparatus for transmitting a call charging signal
03/1982
03/17/1982EP0047524A1 Communications system, particularly telephone system, for the connection of mobile subscriber terminal equipments
11/1980
11/11/1980US4233473 Comprehensive automatic mobile radio telephone system
04/1978
04/04/1978US4082919 Interconnect control for automatically connecting a simplex or half-duplex radio network to a standard telephone system
03/1977
03/15/1977US4012596 Telephone patch
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