Matches 401 - 450 out of 488 < 1 2 3 4 5 6 7 8 9 10 >
Match Document Document Title
6222484 Personal emergency location system  
A personal emergency location system (PELS) employs a small battery-powered personal unit worn by a person who may be lost overboard. The personal unit has a GPS receiver and processor for...
6211819 Mobile station location determination in a radio communication system  
A method and apparatus for location determination of a mobile station (304) in a fixed radiocommunication system having at least one base station (302) reduces the computational load on the mobile...
6204808 Method and system for aiding GPS receivers via a cellular or PCS network  
In accordance with the invention, there is disclosed a system for determining location of a mobile station. The mobile station includes a transceiver operating in a wireless network and a GPS...
6201973 Mobile communication apparatus  
A mobile communication apparatus having a transceiver is provided with a location calculator which calculates a location of the mobile communication apparatus based on three radio control signals...
6201498 GPS receiver with close range wireless communication port  
A global position satellite (GPS) receiver constructed with a close range wireless communication port to facilitate the down loading of processed global p signal and to facilitate the communication...
6198989 Monitor and remote control via long baseline RTK  
A method and a system for remote control of a rover over a long base line is disclosed. The system includes a primary base station (PBS), a secondary base station (SBS), a rover, a primary long...
6195039 Location signalling apparatus  
A signalling device which is housed within a tubular container includes a mylar balloon; a pressurized, lighter-than-air gas source; and multiple beacon devices. The device signals its location...
6185427 Distributed satellite position system processing and application network  
A system and method for processing in a distributed manner satellite position system (SPS) information. In one example of the invention, a first mobile SPS receiver receives SPS signals from a...
6185504 Vehicle scheduling and collision avoidance system using time multiplexed global positioning system  
A method for optimizing the operation of a drawbridge is disclosed. The location of each a set of land vehicles approaching the drawbridge via a global positioning system calculation is determined....
6182011 Method and apparatus for determining position using global positioning satellites  
A global positioning satellite receiver having an antenna for receiving a L1 signal from a satellite. The L1 signal is processed by a preamplifer stage including a band pass filter and a low noise...
6181272 Data communications network  
A method (200, 300) and apparatus (100) provides for displaying locally the position and identity of various field operatives or agents who have radio receiver transmitters (20, 30 and 40). A local...
6181878 Image capturing apparatus capable of receiving identification from base stations  
A camera includes a place information generator which receives identification information concerning an identification of a radio base station having a predetermined radio transmission zone, and...
6175329 Automatic emergency and position indicator  
An automatic emergency and position indicator includes a trigger; a global positioning system receiver for receiving a plurality of global positioning system satellite signals; a processor,...
6169958 Ionospheric correction for single frequency GPS receivers using three satellites  
Systems and methods are disclosed for ionospheric correction in a system employing a single GPS frequency receiver for determining the geographic location of an object on the earth's surface. The...
6160509 Method and apparatus for alerting a user regarding the position of a satellite  
An method and apparatus and method for determining the position of a satellite overhead by a user using portable computation equipment. The invention uses a portable computational equipment that...
6147644 Autonomous geolocation and message communication system and method  
A system and method for transmitting information to a receiving station via one or more Low Earth Orbit (LEO) satellites includes a device which is capable of operating autonomously to transmit...
6144336 System and method to communicate time stamped, 3-axis geo-position data within telecommunication networks  
In the case of a conventional radio telecommunication system for transmitting information between stationary transmitting/receiving units and mobile transmitting/receiving units it is proposed that...
6140958 Remote position sensing system for use with an unmanned apparatus  
A system for monitoring guiding and controlling an unmanned, unteathered flight vehicle, generally assumed to be moving through the earth's atmosphere at a high rate of speed. The system is...
6133867 Integrated air traffic management and collision avoidance system  
A collision avoidance system utilizes a satellite navigational system to continuously determine object motion parameters relative to the earth's surface and exchanges this information with other...
6133872 Real time precision orbit determination system  
The present invention relates to a system for providing highly accurate position estimates for a vehicle in space, in substantially real time. The system includes a Mission Control Center (MCC)...
6133874 Method and apparatus for acquiring satellite positioning system signals  
A method and an apparatus which acquire satellite positioning system (SPS) signals in an SPS receiver. Information on time of day, approximate receiver location, and satellite positions are used to...
6130642 Method and system to improve GPS navigation  
A method and system are provided for improving the navigation accuracy of a vehicle guided by the global positioning system (GPS). The system can be ermanent or can be delivered "on station" by...
6124826 Navigation device for people  
A navigation device for people, which device includes a navigation unit, which has a receiver device for the wireless transmission of data to identify the current geographic position, a...
6118403 Speed trap information system  
A system that provides information to authorized users regarding the location of speed traps via a wireless communication network connected to a computer wide area network. The system includes the...
6114990 Device for real time simulation  
6112054 Satellite positioning method in a communication control system  
A satellite position/arrival-time calculating section calculates the arrival date and time at which a communication satellite is to arrive in a communicable area where the communication satellite...
6111540 Combined GPS positioning system and communications system utilizing shared circuitry  
A combined GPS and communication system having shared circuitry. The combined system includes an antenna for receiving data representative of GPS signals, a frequency converter coupled to the...
6100842 Chained location determination system  
Methods for chaining together two or more navigation or survey stations to complete a project, where only adjacent stations in the chain have contact with each other. The location of a mobile...
6094164 Integrated radio direction finding and GPS receiver tracking system  
An integrated radio direction finding and GPS receiver tracking system. In one embodiment, a transmitter device is attached to an object to be located. The transmitter device transmits a signal....
6091358 Integrated position determination system with radio relay  
A integrated position determination network including a position determination system and a radio relay system is disclosed which locates the precise location of the position determination system....
6087983 System for broadcasting GPS data to a pager  
A communications network for GPS systems is configured so that the service area (i.e., the geographical area to which GPS service is provided) is divided into relatively small sections. Each...
6069584 Competent munitions using range correction with auto-registration  
A system for monitoring guiding and controlling an unmanned, unteathered flight vehicle, generally assumed to be moving through the atmosphere of the earth at a high rate of speed. The system...
6067045 Communication network initialization apparatus and method for fast GPS-based positioning  
An apparatus and method is disclosed, utilizing a communications network (in this particular design, it is a GEM (Geo-Mobile) satellite system) to initialize a Global Positioning System (GPS)...
6043777 Method and apparatus for global positioning system based cooperative location system  
A cooperative location system for use with a Global Positioning System ("GPS"). The system includes a beacon that receives GPS signals and transmits GPS data representing the location of the beacon...
6031489 User terminal positioning system and method employing external signals  
A communications satellite communications system and method, where a communications satellite 10 can pass messages between a user terminal 44 and an earth station 38, as the communications...
6014102 Method and apparatus for calibrating location finding equipment within a communication system  
Error vectors are added to any position estimate determined by Location finding equipment (LFE) in order to give a corrected position estimate. Error vectors are determined utilizing calibration...
6012013 Vehicle position reporting in user defined uni-dimensional coordinate system  
The method and the apparatus for the outputting in a uni-dimensional coordinate system the position coordinates and speed determined by the position and speed determining system (PSDS) are...
6011510 GPS based search and rescue transceiver  
A survival radio of the type useable in search and rescue operations and carried by the party to be rescued is described. The survival radio includes a GPS receiver, a transceiver and a...
6005513 Portable flight guidance and tracking system  
A portable three-dimensional position and velocity data archiving system for use with an aircraft during flight testing and evaluations. The system includes a ground based system and an airborne...
6002362 Apparatus and method for receiving position and control signals by a mobile machine  
A base station receives GPS signals from GPS satellites and transmits a combined differential GPS (DGPS) signal and a command signal. At least one pseudolite receives the DGPS and command signals...
5999124 Satellite positioning system augmentation with wireless communication signals  
A method and apparatus for processing position information from satellite positioning system satellites and from cellular based communication signals. In one example of a method according to the...
5991687 System and method for communicating information related to a geographical area  
A system for communicating information relating to a geographical area includes a circuit for determining the location of a vehicle within a geographical area and for receiving and processing...
5990809 Underwater surveying system  
The hydrography of a land area beneath a shallow body of water is determined by driving a submersible, remotely controlled, powered vehicle along a route over the land area. The vehicle includes a...
5986603 Geometric utilization of exact solutions of the pseudorange equations  
Method and apparatus for determining non-iterative exact solutions for two, three or four location fix coordinates x, y, z and/or time offset b from pseudorange measurements from a plurality of...
5977909 Method and apparatus for locating an object using reduced number of GPS satellite signals or with improved accuracy  
The number of simultaneous equations needed to find the location solution of an asset being tracked, such as a railcar, or, in the alternative, to improve the localization accuracy of any of...
RE35920 Event-activated reporting of vehicle location  
Apparatus that is carried on a land vehicle, a marine vehicle or vessel, or an airborne vehicle or vessel for notifying others that a vehicle accident or other abnormal situation has occurred and...
5757916 Method and apparatus for authenticating the location of remote users of networked computing systems  
A method and apparatus for authenticating the identity of a remote user entity where the identity of such user entity is authenticated by use of information specific to geodetic location of the...
5754657 Authentication of a message source  
Methods for authentication or validation of the location of a putative source (ps) of a message, using time varying location determination (LD) signals that are received from J sources (J>1) of...
5729235 Coherent GPS translator with spread spectrum pilot tone  
A translator for translating GPS signals received at one location to a different frequency for ground transmission to another location uses a spread spectrum pilot tone for phase-locking the local...
5726663 Survival radio interrogator  
Survival radio interrogator (1) transmits upon request a message including an identification of survival radio (3). Upon receiving and processing this message, survival radio (3) determines its...
Matches 401 - 450 out of 488 < 1 2 3 4 5 6 7 8 9 10 >