×

Navigation system

  • US 7,158,880 B2
  • Filed: 02/16/2001
  • Issued: 01/02/2007
  • Est. Priority Date: 02/18/2000
  • Status: Expired due to Term
First Claim
Patent Images

1. A navigation system for use in a motor vehicle, comprising:

  • a data input unit through which a user enters destination position data;

    a first non-volatile memory unit that stores a basic navigation database including road map information;

    a communication unit that receives supplemental navigation data including digital road map information, and provides received supplemental navigation data;

    a second non-volatile memory unit that receives and stores the received supplemental navigation data;

    a navigation computer that receives start position data and the received destination position data, and computes driving directions between the starting position and the destination position using information from the basic navigation database and the received supplemental navigation data; and

    a data output unit for outputting the driving directions to the user.

View all claims
  • 5 Assignments
Timeline View
Assignment View
    ×
    ×