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  • US 4,631,678 A
  • Filed: 05/18/1984
  • Issued: 12/23/1986
  • Est. Priority Date: 05/27/1983
  • Status: Expired due to Fees
First Claim
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1. A system for identifying locations on a map for inputting data of the locations into an optical map reading device of a navigation device, the locations including a start point and a target point, the navigation device including a data processor, the system comprisingstencil means configured for emplacement on the map for measuring coordinate distances on the map, said stencil means including a mark for association with a starting point or target point on the map, andlocation marking means constructed with optically readable location markings, and being disposed on said stencil means for inputting location data into said reading device for use by said data processor, said location data being inputted upon alignment of said mark of said stencil means with a coordinate of the starting point or target point.

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