Vehicle-route computing apparatus
September 16, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMethod and apparatus for determining a route between a starting point and a destination Route exploration method of navigation apparatus Land vehicle multiple navigation route apparatus Navigation system for motor vehicles Vehicle guiding system responsive to estimated congestion Recommended route guide apparatus which utilizes multiple start and end points Optimum route determination Route selection method and apparatus therefor Navigation system and path search method using hierarchized road data Apparatus and method for guiding vehicle occupant to travel from present position of vehicle to set destination through display unit Patent #: 5557522 InventorsApplicationNo. 718044 filed on 09/16/1996US Classes:701/209, Including route searching or determining device340/990, With map display340/995.19, Route determination and display on map701/201, Determination of travel data based on the start point and destination point701/202Route pre-planningExaminersPrimary: Nguyen, Tan T.Attorney, Agent or FirmForeign Patent References
International ClassesG05D 001/00G06F 165/00 Foreign Application Priority Data1996-02-08 JPAbstractRoutes from a departure area to a plurality of destination areas are found as a departure-area route network data set and a plurality of such departure-area route network data sets computed for all departure areas are then stored in advance in a road-map storing memory unit 4 and a departure-area route network data storing memory unit 5. At a route-search time, a departure-area determining unit 3 determines the departure area of the vehicle to which a departure position pertains and a route-search processing means 7 uses a departure-area route network data set for the departure area determined by the departure-area determining unit 3 as well as road maps of the departure area and the vicinity of a departure position to search for guidance routes from the departure position to the destination position in a short time, presenting the guidance routes to the driver.Other References
Field of SearchDetermination of travel data based on the start point and destination pointRoute pre-planning Determination of E.T.A. For use in a map data base system Including route searching or determining device Route correction, modification, or verification Having audio or visual route guidance Having variable map scale Having an self-contained position computing means (e.g., dead reckoning) Using dead-reckoning apparatus VEHICLE POSITION INDICATION With map display | |
