Patents
Sitemap › H04 - Electric communication technique › H04W - Wireless communication networks › H04W 84 - Network topologies
Patents for H04W 84 - Network topologies (50,427)
05/1992
05/26/1992US5117301 System for transmitting information to moving object
05/26/1992CA1301966C Watch pager system and communication protocol
05/20/1992EP0486229A2 Satellite control link for paging system
05/19/1992US5115463 Extended cordless telephone system
05/14/1992WO1992008328A1 Digital radio telephone system
05/14/1992WO1992008327A1 A method for locating a communication unit within a multimode communication system
05/14/1992WO1992008326A1 A method for inter operation of a cellular communication system and a trunking communication system
05/14/1992WO1992008325A1 Call hand-off with user selectable site switching
05/14/1992WO1992008301A1 Private data transmission in a multi mode communication system
05/14/1992WO1992008300A1 Private calling in a multi mode communication system
05/14/1992CA2055327A1 Satellite control link for paging system
05/13/1992EP0485236A2 Paging receiver with a display
05/13/1992EP0401235A4 Paging system with transmission protocol compatible with analog and digital transmitters
05/12/1992US5113413 Voter arrangement for multiple site PST RF trunking system
05/12/1992US5113394 Method for repeating TDM/TDMA frames
05/06/1992EP0420843A4 Paging system with commands for changing functionality of a paging receiver
05/06/1992EP0394357A4 Acknowledge back pager with apparatus for controlling transmit frequency
05/06/1992EP0394339A4 Acknowledge back pager with adaptive variable transmitter output power
05/06/1992CN1016565B Automatic equivalent temporary talkgroup assignment in roaming trunking environment
05/06/1992CN1016553B Subscriber unit for wireless digital subscriber communication system
05/05/1992US5111197 Apparatus for allocating subscriber identification numbers to plural service zones in a paging system
05/05/1992CA1300233C Universal frequency assignment protocol for trunked radio systems
04/1992
04/29/1992EP0482050A1 Cellular radio system.
04/29/1992EP0466843A4 Satellite communications system
04/28/1992US5109543 Hardware interface and protocol for a mobile radio transceiver
04/28/1992US5109525 Two-way radio with voice storage
04/28/1992CA1299781C Reuse groups for scan monitoring in digital cellular systems
04/28/1992CA1299706C Concentrator system capable of completing emergency calls under congested traffic
04/22/1992EP0401223A4 Paging system with dynamically programmable reception frequencies
04/22/1992EP0398934A4 Acknowledge back pager with frequency control apparatus
04/22/1992EP0398926A4 Frequency division multiplexed acknowledge back paging system
04/15/1992EP0404774A4 Paging system hub switch
04/15/1992EP0398911A4 Trunked communication system with nationwide roaming capability
04/08/1992EP0408557A4 Paging system lata switch
04/08/1992EP0407387A4 Paging system local switch
04/08/1992EP0404786A4 Paging system for entering pages by local telephone call
04/08/1992EP0402389A4 Paging system
04/02/1992WO1992005650A1 Interface between mobile telecommunication stations and trunks that link to communication carriers
04/01/1992EP0478213A2 Cordless communication system
03/1992
03/31/1992US5101502 Wide area trunked channel busy override
03/27/1992CA2052247A1 Communication system
03/25/1992EP0476127A1 Integrated cellular communications system.
03/25/1992EP0402358A4 Paging system sublocal switch
03/24/1992CA1298002C Paging system
03/18/1992EP0475348A2 Cordless key telephone system having zone switching function
03/18/1992EP0474675A1 Method of establishing communication between independent communication systems
03/10/1992US5095529 Intersystem group call communication system and method
03/05/1992WO1992004784A1 Method and apparatus for establishing voice and tone signalling communication in a trunked system
03/04/1992EP0473355A2 Distributed multisite coordination system for trunked radio systems
03/03/1992US5093927 Two-way communication system
03/03/1992US5093926 Trunked communication system scanning method and apparatus
03/03/1992US5093829 Communication system network
03/03/1992CA1296773C Trunked communication system for voice and data
03/01/1992CA2050013A1 Distributed multisite coordination system
02/1992
02/25/1992US5091906 Quasi-duplex radio system using bi-directional hole extension
02/20/1992WO1992003006A1 Two way cordless telephone communication system
02/18/1992US5090051 Radio communication system and method for connecting an incoming call to a wireless telephone
02/06/1992DE4024708A1 Telephone subscriber's appts. connector without exchange line - uses interface coupled to transmission-reception stage of radio telephone for linkage
02/05/1992EP0358659A4 Subscriber unit for a trunked voice/data communication system
02/04/1992US5086507 Drop channel pre-alert for trunked radio communication system
02/04/1992US5086506 Radio trunking fault detection system with power output monitoring and on-air monitoring
01/1992
01/22/1992EP0466843A1 Satellite communications system.
01/22/1992EP0466736A1 Wireless telephone system with an extension communications unit.
01/22/1992EP0364447A4 Improved signalling method for establishing trunked communication
01/22/1992EP0358688A4 Method for dynamically allocating data channels on a trunked communication system
01/21/1992CA1294674C Communication system having a packet structure field
01/14/1992US5081669 Assignable speakers for channels at a trunked console operator position
01/08/1992EP0464142A1 Paging terminal apparatus with user selectable page forwarding capability and methodology therefor.
01/07/1992WO1992001352A1 Paging system
01/02/1992EP0462982A1 Paging system with improved acknowledge-back capabilities.
12/1991
12/31/1991US5077828 RF channel expansion in a trunked radio communications system
12/27/1991EP0462738A2 Mobile radio communication system
12/27/1991EP0462727A2 Mobile communications
12/18/1991EP0461849A2 Paging receiver with a time piece function
12/17/1991US5073900 Integrated cellular communications system
12/11/1991EP0460704A2 Method and arrangement of locating cordless units in wide area cordless telephone system
12/03/1991US5070499 Communication system interface module for use within a communication system network
12/03/1991US5070404 Method and apparatus for contemporaneous delivery of data
11/1991
11/28/1991WO1991018484A1 Installation for connection of cordless telephone sets to a subscriber's telephone exchange
11/13/1991EP0456547A1 Method and arrangement for telephonic connections for a communication network with autonomous stations
11/12/1991US5065423 Paging system with registration mode
11/12/1991CA1292043C Method for dynamically allocating data channels on a trunked communication system
11/12/1991CA1292042C Acknowledge back pager with adaptive variable transmitter output power
11/12/1991CA1292041C Cellular cordless telephone
10/1991
10/31/1991WO1991016797A1 A communication system network
10/30/1991CN1055853A Mobile telephony system intended for indoor and outdoor subscriber use
10/29/1991CA1291537C2 Portable communications receiver with separated information presentation means and improved battery saving function
10/23/1991EP0452877A2 Cordless key telephone system capable of quickly answering incoming calls
10/23/1991EP0452872A2 Cordless key telephone system for covering multiple service areas having exclusively assigned control channels
10/22/1991US5060296 Communication system with squelch control
10/17/1991DE4011648A1 Mobile radio communications network - uses central transceiver to interlink portable transceivers in different groups
10/16/1991EP0452290A1 A mobile telephone system intended for indoor and outdoor subscriber use
10/15/1991US5058199 Inter-truncked radio systems bridge protocol
10/09/1991EP0450973A2 Radio communication apparatus
10/09/1991EP0450010A1 Information network
10/08/1991CA1290402C Radio communication system having means for avoiding signal collision
10/08/1991CA1290401C Trunked radio repeater system
10/03/1991WO1991015932A1 Wide area trunked channel busy override
10/02/1991EP0449119A2 A movable communication system
10/02/1991EP0448789A2 Radio system
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