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| Number | Title | Issue Date |
| 6405107 | Virtual instrument pilot: an improved method and system for navigation and control of fixed wing aircraft A self contained electronic system for manual or automatic control and navigation of fixed winged aircraft using electronic position sensing such as GPS, DGPS, WAAS, and the like, as the primary sensor and making use of known flight characteristics of the... | 06/11/2002 |
| 6405123 | Method and system for an efficient operating environment in a real-time navigation system A method and system for interactive real-time distributed navigation employs improved techniques for input and output. The method and system may receive inputs through a wireless device. The operating environment simplifies and reduces these inputs. In so... | 06/11/2002 |
| 6401037 | Integrated position and direction system for determining position of offset feature An integrated position and direction system is disclosed that includes a digital compass, wherein the digital compass includes at least three sensors, and a satellite positioning system (SATPOS) having a receiver adapted to receive satellite position dete... | 06/04/2002 |
| 6401036 | Heading and position error-correction method and apparatus for vehicle navigation systems The present invention provides methods and devices that enable correction of gyroscope bias and gyroscope bias drift in low-cost, vehicular navigation and positioning systems without using estimates of position and heading, and subsequent correction of he... | 06/04/2002 |
| 6388613 | Portable GPS type distance/speed meter capable of selectively using doppler speed measuring method A portable type distance/speed meter is designed for measuring a travel distance and a travel speed when a user walks, or runs, while realizing a correct average speed calculation in response to GPS electromagnetic waves receiving conditions. The portable... | 05/14/2002 |
| 6385532 | Accurate vehicle navigation Method and system for accurate vehicle navigation and tracking within a selected lane on a roadway or a waterway. A location determination (LD) receiver, carried on the vehicle, receives LD signals from satellite-based LD signal sources, receives LD signa... | 05/07/2002 |
| 6369755 | Integrated SATPS total survey station Apparatus for measuring surveying parameters, such as distances and angular displacements between an instrument survey station and a mobile survey station, with improved accuracy. The invention combines a differential satellite positioning system (DSATPS)... | 04/09/2002 |
| 6369942 | Auto-alignment tracking telescope mount A mounting and tracking system for telescopes receives date, time, and geographical position data and, in response, automatically selects and points the telescope to a first alignment star. The user completes the exact centering of the first alignment sta... | 04/09/2002 |
| 6370475 | Accident avoidance system System and method for preventing vehicle accidents in which the absolute position of the vehicle is determined, e.g., using a satellite-based positioning system such as GPS, and the location of the vehicle relative to the edges of the roadway is then dete... | 04/09/2002 |
| 6366762 | System and method for measuring round trip delay on the paging and access channels A system and method for determining a round trip delay of signals transmitted between first and second objects, such as a satellite and a mobile telephone, that move relative to each other. A first signal is transmitted from the first object to the second... | 04/02/2002 |
| 6363320 | Thin-client real-time interpretive object tracking system A system for tracking objects includes a database for storing reference data as line segments corresponding to coordinate locations along environmental reference features; mobile units for connection to the objects for receiving coordinate object target p... | 03/26/2002 |
| 6363250 | Arrangement and a method relating to cellular radio communication systems The invention provides a solution to the problem of providing an inexpensive and simple compass unit which, nevertheless, compensates automatically for different deviations in the Earth's magnetic field at different places in the world. Briefly, the solut... | 03/26/2002 |
| 6363324 | Vehicle location system A system for locating a vehicle using the Global Positioning Satellite System (GPS). The system includes a locator unit and a remote unit. The locator unit is connected to the vehicle and includes a processor; a transmitter for obtaining a location from t... | 03/26/2002 |
| 6356855 | Moving body detection system To provide a moving body detection system capable of reliably receiving response signals and discerning the arrangement of opposing moving bodies. A moving body detection system for transmitting and receiving signals in such a manner that moving bodies ca... | 03/12/2002 |
| 6347278 | Mobile terminal and a server for navigation system A navigation system in which a mobile terminal side 101 is not equipped with a CD-ROM for storing map database 105, but implements an on-demand navigation function by sharing the one provided within a server 102. By limiting the communications between the... | 02/12/2002 |
| 6344797 | Digital electronic locator A digital electronic locator which assists in locating the position and direction of an object/animal/person is described. Three configurations of the locator are presented; the first one is the basic configuration which gives an alerting means (Audio and... | 02/05/2002 |
| 6336061 | System and method for attitude determination in global positioning systems (GPS) A system for attitude determination of a platform in global positioning systems (GPS) is disclosed herein. The system includes at least two receivers and an attitude determination circuit. The receivers each include an antenna. The antenna is capable of r... | 01/01/2002 |
| 6330503 | Global positioning system controlled staking apparatus A global positioning system (GPS) controlled marking apparatus for staking and a method of using the apparatus to stake a surface. The apparatus uses a standard architectural or other surface site application program and a stakeout driver program in a sta... | 12/11/2001 |
| 6327534 | Unambiguous position determination using two low-earth orbit satellites A system and method for unambiguously determining the position of a user terminal (for example, a mobile wireless telephone) in a low-Earth orbit satellite communications system. The system includes a user terminal, at least two satellites with known posi... | 12/04/2001 |
| 6324474 | Method for establishing coverage area and accuracy of a wide-area differential global positioning system A method for measuring the effectiveness of a wide-area differential global positioning system by projecting the least-squares error covariance of the space vehicles and ground reference stations through the central control station. Through generation of ... | 11/27/2001 |
| 6323804 | Method and apparatus for GPS time determination A system for rapidly acquiring a time reference for the location determination of a wireless communication device. The system includes a wireless communication device (200), a GPS satellite (202) and a communication satellite (208). The method comprises t... | 11/27/2001 |
| 6318667 | Stealth weapon systems A winged bomb is launched from a launch aircraft and glides to a target. During the glide the winged bomb follows a calculated guide path stored in a on board computer, with correction generated by the computer using data from an altimeter and global posi... | 11/20/2001 |
| 6317603 | Long baseline RTK using a secondary base receiver and a non-continuous data link The system and method for long baseline RTK survey are disclosed. The system includes a primary base station (PBS), a secondary base station (SBS), a primary data link between the PBS and the SBS, and a secondary data link between the SBS and a rover. The... | 11/13/2001 |
| 6317079 | System for ascertaining height as related to an established reference A preferred embodiment permits the safe navigation of a channel or harbor by a ship. A preferred embodiment includes a ship-borne system having a first global positioning system (GPS) receiver and a second fixed reference station with a GPS receiver. Both... | 11/13/2001 |
| 6317688 | Method and apparatus for achieving sole means navigation from global navigation satelite systems A sole means global navigation apparatus adapted for use on an aircraft includes a GPS receiver to provide GPS measurement data and an inertial sensor system adapted to provide inertial translational and rotational data which during time periods is indepe... | 11/13/2001 |
| 6307861 | Method and system for multicast using a satellite network A multicast message is transmitted from an originating subscriber unit (110, FIG. 1) through a network of satellite communications nodes (120, 130, and 140) to a plurality of receiving subscriber units (150, 160, and 170). Each message is distributed thro... | 10/23/2001 |
| 6304210 | Location and generation of high accuracy survey control marks using satellites A first position determining device at a known position transmits a data signal identifying the known position. A second position determining device is responsive to the data signal and movable to a position near but displaced from a survey point. The pos... | 10/16/2001 |
| 6304211 | System and method for measuring distance between two objects using received satellite transmitted data A global position satellite receiver (GPS receiver) is located in a fixed, undefined location on or in the vacinity of a golf course. The distance and direction between the fixed GPS receiver and a pin on the green of a hole on the golf course is measured... | 10/16/2001 |
| 6299934 | Global positioning system controlled paint sprayer A global positioning system (GPS) controlled paint spray system. The system includes a paint sprayer driver program and a GPS paint sprayer. The paint sprayer driver program enables a user of a standard drawing program using a standard personal computer t... | 10/09/2001 |
| 6301533 | Business trip computer A tracking system for monitoring the use of a vehicle is provided. The tracking system includes a plurality of operational sensors, a location sensor and a data processing and recording device. The operational sensors are located within a vehicle for sens... | 10/09/2001 |
| 6297767 | Rescue target position indicating apparatus In a rescue target position indicating apparatus of the invention, when a pipper image, which is visible through a combiner of a head mounting type display device attached to a wearer in a flight vehicle, corresponds to a rescue target, the wearer operate... | 10/02/2001 |
| 6292132 | System and method for improved accuracy in locating and maintaining positions using GPS A system and method are provided for using multiple GPS antennas and corresponding processors on a single vehicle in order to both maintain position information when fewer than four GPS satellites are visible and to reduce position errors by minimizing mu... | 09/18/2001 |
| 6289280 | Method and apparatus for determining an algebraic solution to GPS terrestrial hybrid location system equations A method and apparatus for use in a hybrid position location system. The method and apparatus combines measurements from Global Positioning System (GPS) and terrestrial transceiver stations to compute the location of a device. An algebraic solution to hyb... | 09/11/2001 |
| 6285953 | Monitoring vehicle positions A data monitoring apparatus uses a GPS receiver, micro controller, a plurality of sensors and actuators, a memory, a radio transmitter and a data communication antennae. The apparatus accumulates real-time data concerning position and time and other opera... | 09/04/2001 |
| 6285314 | Portable GPS type distance/speed meter capable of changing sampling period of GPS signal in response to arm swinging period A portable type distance/speed meter is designed for measuring a travel distance and a travel speed in response to GPS electromagnetic waves received by a GPS receiver. The portable type distance/speed meter is arranged by: a GPS (Global Positioning Syste... | 09/04/2001 |
| 6282496 | Method and apparatus for inertial guidance for an automobile navigation system The present invention discloses an improved vehicular inertial guidance navigation system, a.k.a. a dead reckoning system for navigation of a vehicle. The inertial guidance navigation system which may be used alone or in combination with other position de... | 08/28/2001 |
| 6278402 | Hybrid system and method for golf course distance determination using GPS navigation signals A system using GPS navigation signals to aid in distance determination on a golf course includes a cart-based unit, a hand-held distance determining unit that can be interconnected with the cart-based unit, and a central base station. The central base sta... | 08/21/2001 |
| 6278939 | Method and system for providing data from a remotely located geographic database for use in navigation system units A navigation system and method in which geographic data are transmitted in portions, as needed, to end users' computing platforms from a central geographic database and used by the end users' computing platforms to provide navigation-related features to e... | 08/21/2001 |
| 6275705 | Location and tracking system The invention concerns a method of finding the position of a mobile radio-frequency transceiver in a communications system. A network of at least two unsynchronized base stations arranged to transmit/receive signals to at least one mobile-radio frequency ... | 08/14/2001 |
| 6275771 | Time multiplexed global positioning system cell location beacon system A method for locating machines in space, comprises the steps of determining a location of each machine via a global positioning system calculation performed at the machine. The GPS position is used to determining a cell corresponding to the determined loc... | 08/14/2001 |
