04939662 is referenced by 112 patents and cites 7 patents.

A navigation apparatus for navigating a vehicle in accordance with a preset course while measuring distance travelled and steering angle is characterized by presetting distance information for guidance along the course, and outputting guidance relating to the pertinent distance information in the form of travelling conditions corresponding to the preset distance information. Distance information for guiding a driver along the course is preset. Therefore, even if it is a long distance to an intersection at which the next turn is to be made, whenever the vehicle has traveled a fixed distance the driver is unfailingly supplied with distance information relating to the intersection at which the next turn is to be made and with distance information relating to distinguishing features seen along the course, such as facilities and scenery, during the time the vehicle is travelling between the intersections. Thus, if a long distance must be travelled to reach the intersection at which the next turn is to be made, the driver is frequently supplied with guidance relating to distance information while traveling. This makes it possible for the driver to verify the course and assures that the driver can drive the vehicle at ease without requiring that he be aware of the distance to the intersection at which the next turn is to be made.

Title
Navigation apparatus
Application Number
7/217531
Publication Number
4939662
Application Date
July 11, 1988
Publication Date
July 3, 1990
Inventor
Shoji Yokoyama
Anjo
JP
Mitsuhiro Nimura
Anjo
JP
Agent
Varndell Legal Group
Assignee
Kabushiki Kaisha Shinsangyokai Hatsu
JP
Aisin AW
JP
IPC
G06F 15/50
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