Matches 1 - 45 out of 45
Match Document Document Title
7323970 Method and system for remote interaction with a vehicle via wireless communication  
A telemetry system coupled to a vehicle can communicate with a remote site using the overhead control channels of a wireless network, such as a cellular mobile radiotelephone network. The telemetry...
7272494 Communications device for conveying geographic location information over capacity constrained wireless systems  
The present invention enables efficient communication of location identification of remote movable objects or vehicles over capacity-constrained wireless communications systems by transmitting only...
7245928 Method and system for improved short message services  
A service provider uses a telemetry gateway to communicate with radio communication devices using various incompatible short message service (SMS) protocols. A communication, from the service provi...
7233802 Interconnect system and method for multiple protocol short message services  
A customer central location (CCL) communicates with multiple remote wireless devices employing mutually incompatible data formats or short message service (SMS) protocols. A communication, from the...
7151943 System for communicating messages via a forward overhead control channel for a programmable logic control device  
Communicating commands and/or data to a remote controller, such as a programmable logic controller, coupled to a cellular communications device. Each cellular communications device can monitor the ...
7096018 Group communication system having group number specified by mobile unit to permit intergroup calls  
In a group communication system, a mobile station that is not currently under a group communication can participate in a group communication. A location registration signal is transmitted to a base...
EP0909524B1 METHOD FOR ALLOCATING A MOBILE STATION TMSI  
Abstract not available for EP0909524 Abstract of corresponding document: US6039624 A portion of the bits within an assigned Temporary Mobile Station Identification (TMSI) number are encoded based ...
6804529 Trunked radio repeater communication system including home channel aliasing and call grouping  
A system for channel assignment in a trunked transmission communication system including a plurality of subscribers. A plurality of subscribers is provided home channel assignment to reduce collisi...
6748230 Method and apparatus for updating announcement group information  
Method and apparatus for updating a subscriber unit with an announcement group identification. A subscriber unit ( 210 ) requests affiliation ( 301 ) with a talk group ( 202 ) and an unknown announ...
6529486 Trunked radio repeater communication system  
A trunked radio repeater communication system capable of use in a networked system includes a plurality of distributive switches and a unique signaling protocol and a switching protocol for interco...
6374115 Method and apparatus for trunked radio repeater communications with backwards compatibility  
A trunked radio repeater communication system capable of use in a networked system includes a plurality of distributive switches and a unique signaling protocol and a switching protocol for interco...
6256514 Secure radio personal communications system and method  
A secure radio personal communication system and method includes a base station which relays cellular verification signals between a wide area cellular network and a cellular terminal via the wire ...
6039624 Method for allocating a mobile station TMSI  
A portion of the bits within an assigned Temporary Mobile Station Identification (TMSI) number are encoded based upon a subscriber's group classifications (i.e., classifications based on the user's...
6023463 Satellite telephone interference avoidance system  
A method is disclosed for operating a first satellite communications system of a type that operates co-frequency with at least one second transmission system, such as a second satellite communicati...
6011975 Method of personal communications service using wireline/wireless integration detecting a predetermined event during process of a call  
The Advanced Intelligent Network (AIN) wireline system connects to and controls processing of calls to a Personal Communication Service subscriber's wireless handset via a home base station or a wi...
5987331 Communication system to communication system gateway method and apparatus  
A method and apparatus of linking communication systems of different types. Call requests are directed from a sourcing communication unit in a first communication system (101) to a gateway (114), w...
5915217 Worldwide telecommunications system using satellites  
A wireless telephone system (10) capable of servicing a roaming wireless telephone user (30) includes a satellite (22) communications system consisting of at least one orbiting satellite (22); at l...
5903837 Wireless telephone/satellite roaming method  
A wireless telephone system capable of servicing a roaming wireless telephone user includes a satellite communications system consisting of one or more orbiting satellites, each carrying a database...
5875180 Satellite telephone interference avoidance system  
A method is disclosed for operating a first satellite communications system of a type that operates co-frequency with at least one second transmission system, such as a second satellite communicati...
5852781 Establishing a group call in a mobile radio system  
A method and mobile radio system for establishing a group call extending to service areas of several exchanges in a mobile radio system which includes at least a first exchange and a second exchang...
5815799 Priority system for a wide area transmission trunked communication system  
A method and apparatus for providing priority access for users in a transmission trunked communication system, including a plurality of distributive radio network terminal (RNT) switches and a uniq...
5797097 Method and apparatus for identifying the location of a roaming pager  
A system for communicating location data regarding the present service area for a "roaming" cellular paging device in a paging system. Each cellular paging device monitors a cellular network contro...
5758281 Personal communications service using wireline/wireless integration  
The Advanced Intelligent Network (AIN) wireline system connects to and controls processing of calls to a Personal Communication Service subscriber's wireless handset via a home base station or a wi...
5724648 Method of facilitating talkgroup communication in a peer-to-peer  
The present invention encompasses a method of facilitating talkgroup communications across a multiple-system communication network (100). A typical multi-system network (100) includes a plurality o...
5715297 Wireless telephone/satellite roaming system  
A wireless telephone system capable of servicing a roaming wireless telephone user includes a satellite communications system consisting of one or more orbiting satellites, each carrying a database...
5655005 Worldwide telecommunications system using satellites  
A satellite telecommunications system that is operative in conjunction with an existing terrestrial telecommunications system. The satellite telecommunications system includes at least one satellit...
5613209 Method and apparatus for automatically selecting a radio talkgroup  
A communication system (100) has automatic selection of talkgroups based on geographically defined areas. The system (100)includes wireless two-way communication units (120) capable of communicatin...
5613196 Method and apparatus for a distributive wide area network for a land mobile transmission trunked communication system  
A land mobile transmission trunked communication system is provided with a unique switching protocol arrangement among repeaters that are networked to one or more external communication networks. T...
5594780 Satellite communication system that is coupled to a terrestrial communication network and method  
A wireless telephone system (10) capable of servicing a roaming wireless telephone user (30) includes a satellite (22) communications system consisting of at least one orbiting satellite (22); at l...
5586165 Satellite and terrestrial telephone  
A wireless telephone system (10) capable of servicing a roaming wireless telephone user (30) includes a satellite (22) communications system consisting of at least one orbiting satellite (22); at l...
5553243 Method and apparatus for determining with high resolution the fidelity of information received on a communications channel  
A method and apparatus for determining with high resolution the fidelity of communications over a communications channel is disclosed. Portable/mobile radios freely roaming between multiple trunked...
5548802 Method and apparatus for a remote network switch for a land mobile transmission trunked communication system  
A method and apparatus for distributively interconnecting a plurality of land mobile trunked transmission communication systems into a wide area network includes a plurality of distributive radio n...
5526404 Worldwide satellite telephone system and a network coordinating gateway for allocating satellite and terrestrial gateway resources  
A wireless telephone system (10) capable of servicing a roaming wireless telephone user (30) includes a satellite (22) communications system consisting of at least one orbiting satellite (22); at l...
5511232 Method for providing autonomous radio talk group configuration  
A method is provided for autonomous radio talk group configuration among radio transceivers. The radio transceivers are placed in a group configuration mode that operates on a communication channel...
5491835 Method for maintaining audience continuity of a communication group call  
In a multi-site communication system (100), audience continuity of an established communication group call can be maintained by a central controller (116) in the following manner. Upon initial esta...
5475683 Method and apparatus for permitting radio unit roaming between trunked RF transmission sites over a wide area that encompasses plural multisite networks  
Digitally trunked radio transceivers are permitted to roam over an extended coverage area including two or more digitally trunked radio frequency communication networks. Each network includes at le...
5471532 Method of rekeying roaming communication units  
A method of providing over the air rekeying information to roaming communication units in a secure wide area communications system including a home key unit 101, a first key unit 102, and second ke...
5465386 Signaling protocol for a distributive wide area transmission trunked communication system  
A land mobile transmission trunked communication system is provided with an enhanced control signal protocol. The land mobile transmission trunked communication system includes a plurality of trans...
5448623 Satellite telecommunications system using network coordinating gateways operative with a terrestrial communication system  
A wireless telephone system (10) capable of servicing a roaming wireless telephone user (30) includes a satellite (22) communications system consisting of at least one orbiting satellite (22); at l...
5369781 Dispatch communication system with adjacent system signal repeating  
A dispatch communication system wherein a communication unit may move from the service coverage area of a first system to the service coverage area of a second system during a communication transac...
5335350 Individual communication system selection method for group services  
In a communication system network, an operator station, for a particular communication group, may select communication systems wherein a communication group service will be performed for the partic...
5327573 Method for supporting voice communications between communication systems  
An intersystem communication path (20, 67) can be established on an as needed basis. Already established paths are fully utilized before new paths are established. Already established paths can be ...
5307400 Call routing in mobile telephone systems  
A continuous and accurate location system for a mobile telephone subscriber which utilizes a temporary location indication as well as a registration location. If a visiting mobile subscriber sends ...
5303286 Wireless telephone/satellite roaming system  
A wireless telephone system capable of servicing a roaming wireless telephone user includes a satellite communications system consisting of one or more orbiting satellites, each carrying a database...
5260987 Mobile communications  
A base station controller (BSC) personal communications network (PCN), which can for example be based on GSM, has associated with it a local PSTN network and is such that local calls between mobile...

Matches 1 - 45 out of 45