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| Number | Title | Issue Date |
| 8019541 | Real-time data aiding for enhanced GPS performance Data from GPS satellites within the field of view of a ground station are retransmitted to LEO satellites, such as Iridium satellites, and cross-linked if necessary before being transmitted to a user. The user is then able to combine the fed-forward data with data r... | 09/13/2011 |
| 7898470 | Method and system for monitoring the positions of multiple towed vehicles using a single high accuracy receiver In a system for determining the positions of multiple towed vehicles that are towed by a towing vehicle, a satellite antenna is provided on each towed vehicle and a high accuracy satellite receiver is placed on the towing vehicle, the positions of the towed vehicle ... | 03/01/2011 |
| 7885765 | Method and apparatus for estimating behaviors of vehicle using GPS signals A method and an apparatus for estimating behaviors of a vehicle are provided. At least two GPS antennas are located along a longitudinal axis of a vehicle so that speed vectors at the positions where the GPS antennas are located can be determined based on GPS signal... | 02/08/2011 |
| 7706977 | Personal navigation device for use with portable device A navigation system used by a user includes a navigation unit and a portable device. The navigation unit generates navigation-related output. The navigation unit transmits the navigation-related output to the portable device over a wireless communication link. The p... | 04/27/2010 |
| 7693659 | Satellite navigation system using multiple antennas A satellite navigation system using multiple antennas for providing the position of multiple fiduciary points on an object even when fewer than four satellites are visible to some or all the antennas. Satellite signals from the multiple antennas are fed into at leas... | 04/06/2010 |
| 7599796 | Dual-mode location position system The dual mode positioning system comprises multiple wireless network devices, one of the multiple wireless network devices including a GPS receiver. DSS is coupled to the multiple wireless network devices and an operation mode switch is also coupled to the multiple ... | 10/06/2009 |
| 7406114 | Pseudo-noise correlator for GPS spread-spectrum receiver A terrestrial C/A code GPS receiver system digitally samples, filters and stores a segment of 11 half chips of the received composite as a binary number and multiplexes this number for parallel correlation with each of a series of multibit code replicas for the sate... | 07/29/2008 |
| 7403134 | Vehicle driver guarding system using vehicle telematics service and control method thereof A vehicle driver guarding system using a vehicle telematics service and a control method thereof are provided. The vehicle driver guarding system includes: a vehicle telematics system for receiving a final destination, calculating a final destination arrival expecta... | 07/22/2008 |
| 7400956 | Satellite position and heading sensor for vehicle steering control A sensor system for vehicle steering control comprising: a plurality of global navigation satellite sensor systems (GNSS) including receivers and antennas at a fixed spacing to determine a vehicle position, velocity and at least one of a heading angle, a pitch angle... | 07/15/2008 |
| 7392134 | Satellite navigation controller A navigation device changes a position determination accuracy of a receiver for satellite navigation to a higher accuracy in the following cases: when the subject vehicle approaches a destination, the subject vehicle runs on a road not described in map information, ... | 06/24/2008 |
| 7369084 | Two-sectional controlling method and device for satellite antenna A controlling device for a satellite antenna is provided. The controlling device includes a first signal generating device generating an inertial compensating signal having a compensating direction; a second signal generating device assembling a received signal from... | 05/06/2008 |
| 7362262 | Method and apparatus for providing an integrated communications, navigation and surveillance satellite system An integrated communications, navigation and surveillance system includes a plurality of satellites in communication with one another and broadcasting navigation signals. The satellites are capable of bi-directional communication and of receiving and relaying survei... | 04/22/2008 |
| 7362278 | GPS-equipped meter A versatile GPS-equipped meter includes a GPS antenna and a GPS processing circuit in an existing meter unit. Posture adjusting members are provided that have different shapes according to an attachment angle θ of a GPS-equipped meter to a vehicle body frame are ap... | 04/22/2008 |
| 7358893 | Pseudo random code modulated signal combiner A circuit and associated method for determining the heading of a vehicle or device with a satellite ranging system receiver is provided. The circuit requires only a single front end RF stage. A single RF stage can be used because the incoming signal received at the ... | 04/15/2008 |
| 7355510 | Telematics system vehicle tracking A method of tracking a vehicle including receiving vehicle information at a call center from a telematics unit via a wireless network, determining whether the vehicle information is associated with a vehicle station identification for a missing vehicle on a vehicle ... | 04/08/2008 |
| 7356445 | Measurement fault detection The present invention discloses a method and an apparatus for improving measurement fault detection in a sequential measurement processing estimator, and is particularly applied to Global Positioning Receivers. ... | 04/08/2008 |
| 7353139 | Portable apparatus with performance monitoring and audio entertainment features A portable apparatus (10) providing both substantially automated performance monitoring and audio entertainment features. In a preferred embodiment the apparatus (10) broadly comprises a portable housing (12); an attachment mechanism (14)... | 04/01/2008 |
| 7345627 | Land-based local ranging signal methods and systems To provide sub-meter accuracy in a local positioning system, ranging signals with a high modulation rate of code, such as 30 MHz, or more are transmitted. Code phase measurements may be used to obtain the accuracy without requiring relative motion or real time kinem... | 03/18/2008 |
| 7342533 | Method and apparatus for obtaining satellite trajectory data at a satellite positioning system receiver Method and apparatus for locating position of a mobile receiver is described. In one embodiment, satellite measurements are obtained at the mobile receiver for a plurality of satellites in a satellite positioning system constellation. Satellite trajectory data is ob... | 03/11/2008 |
| 7339469 | Shipping container monitoring and tracking system The invention provides a system for monitoring a container for transporting cargo. The system includes an onboard device attached to the container and a central computer system. The central computer system processes alerts transmitted by the onboard device. The onbo... | 03/04/2008 |
| 7340343 | RTK positioning system and positioning method therefor The locations of pseudolites and the location of a stationary reference station are previously known by a user processing unit, and codes and carrier phase of signals transmitted from the pseudolites are measured by the stationary reference station, a moving referen... | 03/04/2008 |
| 7340277 | Adaptive antenna for controlling the weighting on a plurality of antenna elements An optical subscriber system according to the present invention has an adaptive antenna having a plurality of antenna elements, for controlling the weighting on the antenna elements thereby to radiate beams that are adapted to radio wave environments, a position est... | 03/04/2008 |
| 7336225 | Synthetic phase processor for controlling accuracy of high integrity GPS positions A positioning system or synthetic phase processor or rover station for providing high integrity positions with graduated accuracies. The positioning system includes one or more real time kinematic (RTK) reference stations for receiving GPS signals at established ref... | 02/26/2008 |
| 7331644 | Stay-closed drawer slide with socket A self-closing drawer slide assembly for installation between a drawer and the interior of a cabinet is disclosed in conjunction with a compatible mounting socket for mounting the rear of the cabinet member to the rear wall of the cabinet. The socket telescopically ... | 02/19/2008 |
| 7330789 | Apparatus and method for providing a telematics service having and AGPS function An apparatus for providing a telematics service including an AGPS function. An initial position measuring time of a telematics system is shortened due to the AGPS function of the telematics service, so the telematics service is rapidly provided to a user. Because th... | 02/12/2008 |
| 7330511 | Method and system for embedding device positional data in video signals A system for embedding positional data (20) in a video signal (18), the system having a mobile object (4), a positioning receiver (10) associated with the mobile object (4) for obtaining positional data (20) on the mobile ob... | 02/12/2008 |
| 7328104 | Systems and methods for improved inertial navigation A method for producing inertial measurement data is provided. The method comprises receiving raw inertial measurement data from one or more inertial sensors; receiving raw position data based on signals from a global navigation satellite system; processing the raw i... | 02/05/2008 |
| 7327310 | Method and apparatus for managing time in a satellite positioning system Method and apparatus for time management in a position location system is described. In one example, a time relation is received at a server. The time relation includes a relationship between an air-interface time of a base station and a satellite time for a satelli... | 02/05/2008 |
| 7321774 | Inexpensive position sensing device Inexpensive position sensing devices that allow widespread use and availability of position information are disclosed. One embodiment of the position-sensing device acquires, down converts and extracts raw position data from position signals. Then, the position-sens... | 01/22/2008 |
| 7319479 | System and method for multi-camera linking and analysis The present invention is directed to a system and method for tracking objects, such as customers in a retail environment. The invention is divided into two distinct software subsystems, the Customer Tracking system and the Track Analysis system. The Customer Trackin... | 01/15/2008 |
| 7317977 | Dynamic stabilization and control of an earthmoving machine An earthmoving machine including a control system is disclosed. The machine comprises first and second satellite navigation antennas mounted in a longitudinal direction on the earthmoving machine. A third satellite navigation antenna is mounted on a pole attached to... | 01/08/2008 |
| 7310062 | Dual antenna diversity method to detect GPS signal tampering A method of detecting GPS signal tampering uses two GPS receivers. A first receiver measures carrier phases of two or more satellite signals and of a tampered signal. A second receiver measures carrier phases of the two or more satellite signals and the tampered sig... | 12/18/2007 |
| 7292223 | Location tracking device A location tracking device utilizing an acceleration sensor is described. The acceleration sensor includes an inertial body in magnetic fluid that is contained in a closed volume vessel. The tracking device may be used for tracking objects, people, animals, and the ... | 11/06/2007 |
| 7292185 | Attitude determination exploiting geometry constraints A method and system for determining at least one attitude angle of a rigid body. The method comprising: receiving a plurality of Global Navigation Satellite System (GNSS) satellite signals with a plurality of antennas; establishing at least one pair of antennas such... | 11/06/2007 |
| 7292663 | Efficient space-time adaptive processing (STAP) filter for global positioning system (GPS) receivers A system for efficiently filtering interfering signals in a front end of a GPS receiver is disclosed. Such interfering signals can emanate from friendly, as well as unfriendly, sources. One embodiment includes a GPS receiver with a space-time adaptive processing (ST... | 11/06/2007 |
| 7283897 | Method and system for compensating for wheel wear on a train A method and system for compensating for wheel wear uses position and/or speed information from an independent positioning system to measure some distance over which the train has traveled. Wheel rotation information is also collected over the distance. The wheel ro... | 10/16/2007 |
| 7277048 | Asset tracking method The present invention relates to a system for managing assets such as vehicles and/or equipment in an area such as a repair yard or parking lot. A plurality of mobile devices periodically wake-up at different times and transmit their uncorrected GPS location data to... | 10/02/2007 |
| 7277673 | Virtually geostationary satellite array with optimized parameters A plurality of satellites are placed into a virtually geosynchronous orbit, in which a first part of the orbit, that is near apogee, has a similar movement to the rotation of the earth, and therefore the orbit appears virtually stationary relative to the earth. Diff... | 10/02/2007 |
| 7274480 | Portable communicator This communicator makes it possible for the user to do telephone, facsimile, and data communication at any location. On a pen input device, a space eye 2, a telephone control system, a facsimile control system, and a data transmission system are mounted. All ... | 09/25/2007 |
| 7269507 | Method and system for electronically determining dynamic traffic information A method of and system for determining a path traveled by a vehicle in a road network having a plurality of road segments connected into a plurality of paths that includes obtaining a current location measurement having an accuracy range, determining the road segmen... | 09/11/2007 |
