Patents Represented by Law Firm Schwartz & Weirieb
  • Portable map display apparatus
    Patent number: 4570227
    Abstract: A portable map display apparatus stores, in a memory, features of a plurality of points on a given map and features of routes connecting such points and, on receiving input signals concerning a given point of start and a given destination, sequentially displays, on an output device, the information on the optimum route to be followed in reaching the destination from the point of start.
    Type: Grant
    Filed: August 11, 1982
    Date of Patent: February 11, 1986
    Assignees: Agency of Industrial Science & Technology, Ministry of International Trade & Industry
    Inventors: Susumu Tachi, Kiyoshi Komoriya