05402120 is referenced by 43 patents and cites 10 patents.

A navigation system mounted on a vehicle displays a primary direction indication image on a display unit. This primary direction indication image has a proximal portion that represents a road along which the vehicle is now moving and a direction indication portion that represents a road which the vehicle is to enter at the next intersection. One or more auxiliary direction indication images, with direction indication portions that represent other roads connected to the next intersection, are displayed on the display unit together with the primary direction indication image. The direction indication portion of the auxiliary direction indication image extends from the distal end of the proximal portion of the primary direction indication image.

Title
Navigation system
Application Number
8/108975
Publication Number
5402120
Application Date
August 18, 1993
Publication Date
March 28, 1995
Inventor
Tatsuhiko Abe
Saitama
JP
Takao Fujii
Cupertino
CA, US
Agent
Thomas R Morrison
Harold L Burstyn
Assignee
Zexel Corporation
JP
IPC
G08G 1/123
View Original Source