Method and system for generating driving directions
Patent 7054745 Issued on May 30, 2006. Estimated Expiration Date: 
September 3, 2023. 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.
September 3, 2023. 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.InventorsAssigneeApplicationNo. 10654229 filed on 09/03/2003US Classes:701/211, Having audio or visual route guidance701/209, Including route searching or determining device340/995.27, Including particular display feature (e.g., indication of direction, mileage, road type, etc.)701/210Route correction, modification, or verificationExaminersPrimary: Camby, Richard M.Attorney, Agent or FirmInternational ClassG01C 21/30AbstractA method and system for generating driving directions composes computer-based instructions that emulate a human driving perspective. Language-based instructions guide a driver along a route that encompasses a sequence of roads and intersections. An algorithm applies rules based on human perception to route components. The algorithm diagnoses road name changes so that instructions are clear and concise. The algorithm analyzes road and intersection geometry at confusing areas, such as road forks, roundabouts, ferry crossings, cloverleaf interchanges, and ramps, to generate instructions that conform to a driver's natural perspective. The algorithm analyzes the configuration of an intersection with respect to a driver's field of view to compose a clear and concise instruction. When appropriate, the algorithm produces compound instructions for adjacent intersections.Other References
Field of SearchDetermination of E.T.A.Determination of along-track or cross-track deviations Having variable map scale Great circle route Determination of travel data based on the start point and destination point Route pre-planning Including route searching or determining device Employing way point navigation Route correction, modification, or verification Using Global Positioning System (GPS) NAVIGATION For use in a map data base system Having audio or visual route guidance Employing position determining equipment Including particular position/direction sensor Route determination and display on map Transmission of map data to vehicle Having plural maps Input device Position indication transmitted by local station to remote location Vehicle's arrival or expected arrival at remote location along route indicated at that remote location (e.g., bus arrival systems) Map display Having adjustable map (e.g., scalable, etc.) Including vehicle position correction Off course, route re-search Including particular display structure (e.g., detachable, rolling map sheet, etc.) Position indication transmitted at periodic intervals (e.g., distance travelled) Display change based on vehicle position With map display Including landmark information Intersection turn guidance Pattern matching At remote location Including particular display feature (e.g., indication of direction, mileage, road type, etc.) Traffic information Position indication transmitted by vehicle after receipt of information from local station Particular data storage Specifying particular start/destination Manipulation of map display or data Combined with telecommunication Using Global Positioning Satellite (GPS or Glonass) | |
