Position recognition system and position-coordinate converting device
Patent 5396254 Issued on March 7, 1995. Estimated Expiration Date: 
March 7, 2012. 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.
March 7, 2012. 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 ReferencesPosition display instrument Automated map display system Patent #: 4873513 InventorAssigneeApplicationNo. 789831 filed on 11/08/1991US Classes:342/357.13, With storage device (i.e., map or database)340/990, With map display340/995.1, Map display342/457Land vehicle location (e.g., bus, police carExaminersPrimary: Blum, Theodore M.Attorney, Agent or FirmInternational ClassesH04B 007/185G01S 005/02 Foreign Application Priority Data1990-11-08 JPAbstractA position recognition system is disclosed which includes a map divided into a plurality of areas, and area information corresponding to each area. A position-coordinate converting device includes a position detector for detecting a position as coordinates corresponding to a predetermined standard point. A map information memory card stores the area information of the map and coordinates corresponding to the predetermined standard point as map information. A CPU operates on the area information based on the detected results of the position detector and the map information stored in the map information memory card. An indicator indicates the operational results of the CPU. | |
