Patents by Inventor Katsunori Ando

Katsunori Ando has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for drawing a map for a navigation system
    Patent number: 5925091
    Abstract: In a vehicle navigation method and apparatus for drawing a map in which the scale of a displayed map is reduced to display a second wide-area map, an image of a presently-traveled road is drawn on the display so it is superimposed on the wide-area map, even if the wide-area map otherwise does not show the presently-traveled road. When the scale of the presently displayed map is reduced to instead display the wide-area map, a determination is made as to whether the presently-traveled road is displayed. If the presently-traveled road is not displayed, an image of the presently-traveled road is generated from map information pertaining to the presently-traveled road and the image is displayed so it is superimposed on the wide-area map.
    Type: Grant
    Filed: May 28, 1996
    Date of Patent: July 20, 1999
    Assignee: Alpine Electronics, Inc.
    Inventor: Katsunori Ando