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Navigator for vehicles

  • US 4,511,973 A
  • Filed: 08/20/1982
  • Issued: 04/16/1985
  • Est. Priority Date: 08/24/1981
  • Status: Expired due to Term
First Claim
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1. A navigator for vehicles comprising:

  • distance detector means for detecting a running distance of the vehicle to generate a distance signal;

    direction detector means for detecting a travelling direction of the vehicle to generate a direction signal;

    memory means for storing map data for displaying the road map of a travelling region of the vehicle and position information of a specific point of the travelling region;

    display means for electronically displaying the road map and a cursor for indicating the present position of the vehicle on a display surface thereof;

    first command means for generating a first command for causing said cursor to move in a predetermined direction;

    second command means for generating a second command for causing said cursor to move to a position of the display surface corresponding to said specific point;

    map display control means for reading the map data from said memory means to cause said display means to display the road map on the display surface thereof;

    present position display control means responsive to the distance signal from said distance detector means and the direction signal from said direction detector means for determining the amount of movement of the vehicle and for causing the displayed position of said cursor to move in accordance with the amount of movement;

    first cursor movement control means for moving the displayed position of said cursor in the direction decided by the first command from said first command means; and

    second cursor movement control means responsive to the second command from said second command means for reading the position information of the specific point from said memory means to rapidly move said cursor to the position decided by said position information.

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