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7430425 Inter-carrier digital message with user data payload service providing phone number only experience  
A phone number only messaging experience is provided in an Inter-Carrier Messaging System service. Subscriber to subscriber digital messages containing user data are routed between carrier's...
7428510 Prepaid short messaging  
A prepaid messaging solution which uses open networking standards (e.g., TCP/IP) and which supports pre-payment of enhanced Internet messaging services. The disclosed prepaid architectures and...
7426380 Location derived presence information  
The number of messages required in networks where both location and presence services are deployed may be reduced, by retrieving presence data from messages otherwise intended to provide only...
7424293 User plane location based service using message tunneling to support roaming  
An improved User Plane location based service (LBS) architecture and message flow, enabling seamless User Plane location based services even when a mobile or wireless device has roamed among...
7355990 Mobile-originated to HTTP internet communications  
A mobile device-to-HTTP protocol gateway (MHG, or “MO Gateway”) which translates between Wireless Mobile Originated commands from an SMSC, and an application server on the Internet (i.e., a...
7228139 Location processing system  
A device for determining the location of a communication device includes a network interface, a signal enhancement module, a tone decoder, and a translator. The network interface is capable of...
7199709 Cart fleet management system  
A hand-operated cart constructed for carrying luggage or packages includes a frame including a cargo area, and cart wheels connected to the frame and connected to a handrail arranged for manually...
7127264 Mobile originated interactive menus via short messaging services  
Two-way interactive short message system with personalized messaging menus that provide WAP like services at less cost than CSD. Mobile Originated Interactive Menus are implemented as a feature of...
7110773 Mobile activity status tracker  
A technique and apparatus to provide status tracking of presence and/or location of a mobile, wireless device to a requesting entity even outside of a particular wireless system. This allows...
7027773 On/off keying node-to-node messaging transceiver network with dynamic routing and configuring  
The invention is a system operating on a reference frequency. The system comprises a plurality of at least three nodes. Each node hands off a message received from another node to a subsequent...
6968737 Position determining system using transmitted position information  
The present invention is a system and method for automated position location using RF signposting. The present invention comprises a plurality of transmitting units placed throughout a service...
6891811 Short messaging service center mobile-originated to HTTP internet communications  
A mobile device-to-HTTP protocol gateway (MHG, or “MO Gateway”) which translates between Wireless Mobile Originated commands from an SMSC, and an application server on the Internet (i.e., a...
6871215 Universal mail wireless e-mail reader  
A universal mail application maintains login with a plurality of email applications for a particular subscriber, presenting Inbox, Outbox, etc., for an email account as desired, without requiring...
6825766 Industrial data capture system including a choke point portal and tracking software for radio frequency identification of cargo  
A radio frequency identification (RFID) capture system for identifying and recording information parameters associated with cargo items. A choke point portal defines a doorway through which passes...
6812824 Method and apparatus combining a tracking system and a wireless communication system  
System for tracking mobile tags. Cell controllers with multiple antenna modules generate a carrier signal which is received by the tags. Tags shift the frequency of the carrier signal, modulate an...
6631259 Method for enabling receipt of a packet-switched page by a mobile station  
A mechanism for notifying a mobile station of receipt of a packet-switched paging message in a GSM communication system. A base station controller ( 108 ) sends the packet-switched paging message...
6483427 Article tracking system  
System for tracking mobile tags. Cell controllers with multiple antenna modules generate a carrier signal which is received by the tags. Tags shift the frequency of the carrier signal, modulate an...
6433740 Determination method for use with analog cellular system  
A method and apparatus for determining the location of a mobile unit within a cellular system. A synchronized signal at a common phase is generated at each base station in a system. The mobile unit...
6330452 Network-based wireless location system to position AMPs (FDMA) cellular telephones, part I  
The intention of the invention is to produce a network-based Wireless Location System (WLS) whereby existing Advanced Mobile Phone System (AMPS) Frequency Division Multiple Access (FDMA) Cellular...
6266014 Methods and apparatus to position a mobile receiver using downlink signals part IV  
The invention consists of methods and apparatus to estimate the position and velocity of a Mobile Receiver (MR) using either the Time Of Arrival (TOA) of signals received by the MR, their Phase Of...
6259404 Position location system and method  
A position location system includes multiple base stations spaced over a region. A remote unit within the region transmits a locating signal which is received by the base stations. The base...
6208297 Methods and apparatus to position a mobile receiver using downlink signals, part I  
The invention comprises of methods and apparatus to estimate the position and velocity of a Mobile Receiver (MR) using either the Time Of Arrival (TOA) of signals received by the MR, their Phase Of...
6204812 Methods and apparatus to position a mobile receiver using downlink signals, part II  
The invention consists of methods and apparatus to estimate the position and velocity of a Mobile Receiver (MR) using either the Time Of Arrival (TOA) of signals received by the MR, their Phase Of...
6201499 Time difference of arrival measurement system  
A method and apparatus for measuring the time difference of arrival between two received signals, each received signal being a time delayed version of a transmitted signal as intercepted at two...
6181253 Flexible monitoring of location and motion  
Method and apparatus for monitoring the present location of a person ("confinee") who is to be confined to a designated site, which site can have a diameter as small as a few meters or as large as...
6150921 Article tracking system  
System for tracking mobile tags. Cell controllers with multiple antenna modules generate a carrier signal which is received by the tags. Tags shift the frequency of the carrier signal, modulate an...
6035202 Method and apparatus for locating a mobile unit  
A system for locating a mobile transceiver is disclosed. A first receiver associated with a mobile transceiver detects signals transmitted from fixed transmitter locations broadcasting, for...
5974328 Rapid system access and registration in mobile phone systems  
A mobile radio telephone communication systems provides for rapid system access and registration of mobile phones when the mobile phone operates in an area outside of its home service area. A...
5973643 Method and apparatus for mobile emitter location  
A location system for identifying locations of emitters in a cellular telephone service area. Searching identifies active emitters in the service area to find the coarse areas in which active...
5936572 Portable hybrid location determination system  
Apparatus and method for determining the present location of a mobile user that carries the apparatus inside or outside buildings and structures within a region R. The apparatus includes a radio...
5895436 Vehicle tracking system using cellular network  
A vehicle tracking method and system using the cellular network infrastructure is disclosed. A cellular transceiver which is installed in a vehicle that requires tracking, operates on a continuous...
5890068 Wireless location system  
The position of a Wireless Transceiver (WT) is estimated using the Time Of Arrival (TOA) at several Monitoring Sites (MS) of the signal transmitted by the WT. Several sites are used to solve for...
5883886 Utility meter readings on a reverse channel of a two-way paging system  
A meter reading device (22) for wirelessly transmitting meter readings from a plurality of meters (30) includes a receiver (44) for receiving a synchronization signal (60), a clock (40) connected...
5883598 Position location system and method  
A position location system includes multiple base stations spaced over a region. A portable unit within the region transmits a locating signal which is received by the base stations. The base...
5812522 Location-ruled radio-integrated network  
An integrated radio frequency communication system, known as a Location-Ruled Radio-Integrated Network (LORRAINE) system, provides integrated voice, data and location services. The radio frequency...
5802454 Remotely distributed location and messaging system  
A network of interconnected, remotely distributed, location and messaging systems. Each of the remotely distributed location and messaging systems can be dynamically configured to use different...
5797091 Personal communication system and method of use  
A personal communication system for communication with another entity uses global positioning system receiver, phone book storage, and audio input as alternative forms of generating position data....
5778315 Integrated mobile unit location services and cellular telephone services  
An apparatus and method for sharing cellular telephone subscriptions among a plurality of mobile units in a mobile unit location system. Requests for cellular service are transmitted from a mobile...
5703598 Method and system for tracking stolen property  
A method of tracking stolen property uses a continously powered radio receiver for receiving encoded signals from a central station. When the received signal corresponds to a unique code stored at...
5689270 Navigation and positioning system and method using uncoordinated becon signals  
A positioning system uses a multiplicity of commercial broadcast stereo FM radio signal transmitters, at known fixed locations, each of which transmits a beacon signal having a phase that is...
5621417 Method and mechanism for reduction of within-train reported data  
A tracking system for railcars is configured as a dynamic local area network having a master tracking unit and a plurality of slave tracking units, each tracking unit being affixed to a separate...
5621414 Location confirming system  
It is enabled to perform the location confirmation as precisely as possible at a small number of receiving stations. In the respective stations, after performing the operation of filtering and...
5621388 System for monitoring and locating a person within a preselected distance from a base-station  
In a system for monitoring, within a preselected distance or location defining the perimeter of a preselected distance, and locating the position of persons, animals or moving objects, a...
5608410 System for locating a source of bursty transmissions cross reference to related applications  
A system for determining the location of a mobile transmitter is disclosed. The mobile transmitter receives a message signal and responds to the message signal by transmitting a responsive signal,...
5583513 System and method for generating precise code based and carrier phase position determinations  
A GPS system that includes a GPS beacon beacon that receives a plurality of GPS signals. Each of the GPS signals haa a carrier component and a pseudo-random code component. The beacon generates in...
5555015 Wireless two way transmission between center and user stations via a relay  
The present invention is directed to a communication system which can be utilized to complement an existing cable television system in which a central office transmits signals along a coaxial cable...
5510801 Location determination system and method using television broadcast signals  
A location determination system and method in which mobile receiver units are in an area of at least three fixed commercial television stations, each television station broadcasting standard...
5499032 Navigation and positioning system and method using uncoordinated beacon signals  
A positioning system uses a multiplicity of commercial broadcast stereo FM radio signal transmitters, at known fixed locations, each of which transmits a beacon signal having a phase that is...
EP0672917A1 System permitting the positioning of a receiver or an emitter within a group of emitters not belonging to the system.  
The system for locating a transmitter or receiver of radio waves includes at least two receivers (A, B) provided with a communication system linking them to a central station (S). The two receivers...
5422813 No-outage GPS/commercial RF positioning system  
The present invention relates to a no outage GPS/AM position finding system wherein a GPS system having a plurality of satellites transmits time and location data over radio frequency signals to...
Matches 1 - 50 out of 67 1 2 >