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| Number | Title | Issue Date |
| 8116977 | Automatic control of passive, towed implements An automatic control system for passive, towed implements is described. The system provides a strategy for optimal control of a towed implement using a nudge input to an autopilot-controlled tractor. Implement path-tracking error, as measured by a GNSS receiver, is ... | 02/14/2012 |
| 8108146 | Method and device for determining a consolidated position of a traveling object, particularly an aircraft A method and device for determining a consolidated position of a travelling object check the coherence of position values corresponding to a current position of the travelling object and determine a consolidated position for the travelling object based on the cohere... | 01/31/2012 |
| 8103450 | Navigation apparatus and navigation processing method A navigation apparatus includes: a section that calculates, in accordance with a predetermined calculation method, a current speed of a mobile object at predetermined intervals, based on the mobile object's initial speed detected at the start of the calculation; a s... | 01/24/2012 |
| 8095311 | In-vehicle navigation apparatus When a vehicle passes through an entrance IC entering a toll road, a present position of the vehicle changes discontinuously because of increased detection error. Continuity is lost between a designated travel road and a history of past designated travel roads. Desi... | 01/10/2012 |
| 8046168 | System and method for determining position within or without a complex polygon geofence A geofence system which locates a position as within or without the complex polygon type geofence using a simplified algorithm. The algorithm obtains a position and compares it to the polygon by establishing a ray from the position constructed in a cardinal directio... | 10/25/2011 |
| 8019540 | Method and apparatus for processing navigational signals in a satellite navigation system In a method and apparatus for processing a received navigation signal x′(t) of a satellite navigation system, the received navigation signal x′(t) contains at least four navigation codes. The navigation codes are modulated by a complex BOC signal and a defined s... | 09/13/2011 |
| 7957897 | GPS-based in-vehicle sensor calibration algorithm A system and method for calibrating the bias and scale factors of a heading rate sensor, such as a yaw-rate sensor, using GPS signals. The system receives wheel speed or rotation signals, a vehicle odometer reading, GPS signals and yaw-rate signals. The system inclu... | 06/07/2011 |
| 7956802 | Integrity-optimized receiver autonomous integrity monitoring (RAIM) for vertical integrity monitoring A vertical integrity monitoring method and system are described. The vertical integrity monitoring method includes determining a noise sigma ratio parameter. The method also includes determining two vertical protection limit slopes and an associated covariance matri... | 06/07/2011 |
| 7957898 | Computational scheme for MEMS inertial navigation system A computational scheme for an INS which utilizes micro-electro mechanical systems (MEMS) sensors resolves issues of unnecessarily large computational burden and numerical instability which happen in using conventional methods using high-end inertial sensors. The fir... | 06/07/2011 |
| 7912643 | Method and apparatus for locating a satellite spoofer A spoofer location system includes a number of receivers that receive positioning signals. A data engine receives information from the receivers and determines a location of a spoofer source signal. The location of the spoofer source signal is determined by determin... | 03/22/2011 |
| 7907087 | Satellite based positioning of a wireless terminal At least one set of values of parameters is determined, each set of values defining a respective troposphere model. The at least one determined set of parameter values is then assembled for transmission via a wireless communication network to a wireless terminal as ... | 03/15/2011 |
| 7904243 | 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... | 03/08/2011 |
| 7890261 | Non real time traffic system for a navigator A system for improving the operation of a GPS based navigator. Statistical and/or time of day information is used to select the best route between a current location and a desired location. The statistical information may take into account anomalies, and a user can ... | 02/15/2011 |
| 7869949 | Vehicle system and earth-based receiver system In a vehicle, a vehicle system is provided that includes a position determination module for determining the position of the vehicle using an estimation of the error of satellite signals which are received by an earth-based receiver system, and an integrity module f... | 01/11/2011 |
| 7865308 | User-generated activity maps Apparatus and computer-readable media for associating metadata with a geographic location are provided. The apparatus includes logic for detecting that a mobile device is present at a geographic location relevant to a user of the mobile device, logic for retrieving ... | 01/04/2011 |
| 7840352 | Method and system for autonomous vehicle navigation A method and system are provided for autonomous vehicle navigation. In the method and system, one or more Global Positioning System (GPS) sensors, one or more inertial sensors, and one or more image sensors are provided on an autonomous vehicle. During operation of ... | 11/23/2010 |
| 7797106 | System and method for adjusting step detection based on motion information A system and method for changing the weighting accelerometer filtering based upon motion sensor measurements. Using measurements from motion sensors, one or more features can be extracted. This information is used by an algorithm to assign a most appropriate test fe... | 09/14/2010 |
| 7783425 | Integrity-optimized receiver autonomous integrity monitoring (RAIM) An integrity monitoring method for an aircraft is disclosed. The integrity monitoring method includes determining a set of non-uniform weights. The non-uniform weights are based on a least squares approximation of a linearized measurement equation. The integrity mon... | 08/24/2010 |
| 7769543 | Fault detection and reconfiguration of an automated refueling boom A system for automated control of a refueling boom coupled to a tanker aircraft is provided. The system includes sensors such as electro-optical sensor or GPS sensors that provide measurements used by the system to automatically control the refueling boom so as to m... | 08/03/2010 |
| 7725259 | Trajectory estimation system for an orbiting satellite A method for calculating a trajectory of a satellite following a maneuver includes determining a first estimated trajectory of a satellite using a first sequential mode of operation; performing a thruster burn as a correction maneuver for the satellite; and providin... | 05/25/2010 |
| 7702460 | Estimate of relative position between navigation units A first navigation unit of an apparatus in one example comprises a hybrid global positioning system (GPS)/inertial navigation system (INS) component. The hybrid GPS/INS component provides first GPS information and first INS information for the first navigation unit.... | 04/20/2010 |
| 7702459 | GPS accuracy adjustment to mitigate multipath problems for MEMS based integrated INS/GPS navigation systems A method of GPS accuracy adjustment for an integrated INS/GPS navigation system which utilizes microelectro mechanical systems (MEMS) based inertial sensors to mitigate multipath problems arising when a vehicle is in an area with many high-rise buildings is disclose... | 04/20/2010 |
| 7647174 | Navigation system with function of one-touch map matching correction and method thereof A navigation system with a function of one-touch map matching correction, and a method thereof. The navigation system includes a GPS module for receiving each position signal, and measuring self position and driving direction; a map database for storing map data; a ... | 01/12/2010 |
| 7647173 | Data server used in a system for supplying augmentation data for the satellite navigation signals The invention relates to a data server (40) used in a system (10) for supplying complementary data, so-called augmentation data, for satellite navigation signals. The inventive server (40) is especially adapted to be used with elements that are ... | 01/12/2010 |
| 7640106 | Hybrid tracker Apparatus for determining the position of a selected object relative to a moving reference frame, the apparatus including at least one reference frame transceiver assembly firmly attached to the moving reference frame, at least one object transceiver assembly firmly... | 12/29/2009 |
| 7603233 | Map matching method and apparatus for navigation system A map matching method and apparatus for a navigation system estimates a location of the navigation system on a correct road segment when a GPS signal is invalid. The map matching method creates a database of pairs of locations at which the navigation system encounte... | 10/13/2009 |
| 7577526 | Method for determining an initial position in a navigation system A function for identifying a current position of a user and providing information about a route to a desired destination is implemented. A mobile communication terminal with a navigation system accurately determines an initial position using a global positioning sys... | 08/18/2009 |
| 7512493 | High speed gyrocompass alignment via multiple Kalman filter based hypothesis testing A method of aligning a gyro-compass comprising operating at least two Kalman filters in a set of Kalman filters to generate an error correction to at least a single navigation solution in a set of navigation solutions in order to provide coarse alignment azimuth con... | 03/31/2009 |
| 7502688 | System for autonomous vehicle navigation with carrier phase DGPS and laser-scanner augmentation A horizontal navigation system aided by a carrier phase differential Global Positioning System (GPS) receiver and a Laser-Scanner (LS) for an Autonomous Ground Vehicle (AGV). The high accuracy vehicle navigation system is highly demanded for advanced AGVs. Although ... | 03/10/2009 |
| 7490008 | GPS accumulated delta range processing for navigation applications Techniques for GPS navigation used to determine the position and velocity of a moving object. Pseudorange (PR) measurements and accumulated delta range (ADR) measurements are made at the object from received GPS signals. Differences are computed between ADR measurem... | 02/10/2009 |
| 7428461 | Walker navigation device, walker navigation method, and program A pedestrian navigation device (10A) of this invention has a position information reception unit (12), which obtains current position information from a GPS (20); a position information analysis unit (13), which calculates the current pos... | 09/23/2008 |
| 7426156 | Method and apparatus for clock synchronization that accounts for curvature in the space-time continuum Methods and apparatuses for applying a correction that accounts for curvature in the space-time continuum in the context of clock synchronization are disclosed. A representative apparatus, among others, includes a memory having a curved space-time correction module ... | 09/16/2008 |
| 7424363 | Method and system for adaptive navigation using a driver's route knowledge A method and system are described to adapt instructions for performing a task by a user, which includes receiving generalized instructions for the task, selecting a content of the generalized instructions based on user-specific knowledge regarding the task, construc... | 09/09/2008 |
| 7409289 | Device for monitoring the integrity of information delivered by a hybrid INS/GNSS system The device is for monitoring the integrity of the position and speed information supplied by a hybrid system comprising an inertial unit INS readjusted using a GNSS satellite positioning receiver by means of a Kalman hybridization filter using a readjustment gain K ... | 08/05/2008 |
| 7409290 | Positioning and navigation method and system thereof A improved positioning and navigation method and system thereof can substantially solve the problems encountered in global positioning system-only and inertial navigation system-only, such as loss of global positioning satellite signal, sensibility to jamming and sp... | 08/05/2008 |
| 7405746 | Image navigation device An estimate image is generated from a position and an angle of a camera and the estimate image is stored. A collating unit collates an estimate image with a scenery image, and corrects estimate values of a position and angles of the camera according to a result of t... | 07/29/2008 |
| 7400249 | Networked personal security system A personal alarm system can be worn or carried by the user, may be activated at any time by the user and/or may be automatically activated to send a signal to any remote monitoring station on the network. The device identifies the user as well as the user's location... | 07/15/2008 |
| 7400892 | System and method for tracking the relative location of mobile stations belonging to a pre-defined group of mobile stations Embodiments of the present invention are related to a method and apparatus for determining whether each mobile station in a pre-defined group of two or more mobile stations is in compliance with acceptable location criteria. A group tracking server receives mobile s... | 07/15/2008 |
| 7392130 | System and method for determining traffic conditions The present invention provides a method and apparatus for determining traffic conditions using wireless devices. A number of signals from the vehicles traveling in selected routes are received by several wireless communication networks via the wireless devices. The ... | 06/24/2008 |
| 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 |
