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Map information processing device, its system, its method, its program, recording medium storing the program, position information display device, its method, its program and recording medium storing the program

  • US 20040225436A1
  • Filed: 04/07/2004
  • Published: 11/11/2004
  • Est. Priority Date: 04/18/2003
  • Status: Abandoned Application
First Claim
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1. A map information processing device for processing a map information on a map displayed on a display to provide a current position overlaid on the map, the device comprising:

  • a storage for storing the map information;

    a position information acquiring section for acquiring a position information on the current position generated by positioning;

    an accuracy information acquiring section for acquiring an accuracy information on a positioning accuracy of the current position;

    a display area information acquiring section for acquiring a display area information on a display area in which the map is displayed on the display;

    an error area computer for calculating an error area of the current position based on the position information and the accuracy information; and

    a map information processor for acquiring the map information with a scale area where the maximum dimension of the error area corresponds to the minimum dimension of the display area from the storage.

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