×

Drive guide display system for motor vehicle

  • US 4,550,317 A
  • Filed: 09/29/1982
  • Issued: 10/29/1985
  • Est. Priority Date: 09/29/1982
  • Status: Expired due to Fees
First Claim
Patent Images

1. A drive guide system for a motor vehicle comprising:

  • (A) a travel distance sensor for detecting a travel distance of said motor vehicle;

    (B) an azimuth sensor for detecting an azimuth of travel of said motor vehicle;

    (C) memory means for storing map information of a plurality of sections of a drive route map of said motor vehicle form a start point to a destination point;

    (D) a display for displaying one of said drive route map sections in accordance with the sectioned map information stored in said memory means and displaying position information of said motor vehicle between said start point and said destination point; and

    (E) a display control unit for causing said display to display said position information of said motor vehicle based on signals from said travel distance sensor and said azimuth sensor, and when the position of said motor vehicle displayed on said display reaches a predetermined position, selecting one of said sectioned map information corresponding to a route to be next followed by said motor vehicle based on coordinates on a display screen of said display and the signal from said azimuth sensor, reading the selected sectioned map information from said memory means and causing said display to display said selected sectioned map information;

    wherein said drive route map section displayed on said display includes four first areas which overlap with the respective adjacent drive route map sections and four second areas which overlap with respective three surrounding drive route map sections, and when the position of said motor vehicle reaches any one of the outlines of the drive route map section being displayed on the display which defines any one of said first areas, one overlapping map section is selected in accordance with the azimuth of travel of said motor vehicle detected by said azimuth sensor, and when the position of said motor vehicle reaches one of the outlines which defines any one of said second areas, one of said three overlapping map sections is selected in accordance with the azimuth of travel of said motor vehicle detected by said azimuth sensor.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×