0379198-A2 is referenced by 66 patents and cites 5 patents.

A mobile navigation system using a communication system between at least one mobile object (10) and a key station (20). The navigation system includes a unit (102) mounted on the mobile object for determining the position of the mobile object, and a unit (105) mounted on the mobile object for transmitting data representative of the determined position to the key station via the communication system.; The navigation system further includes a data base unit (206) mounted in the key station for storing map data, a unit (205) mounted in the key station for deriving map data of an area including the position of the mobile object from the data base unit, in response to the transmitted position data, a unit (202) mounted in the key station for transmitting data including the derived map data to the mobile object via the communication system, and a unit (112) mounted on the mobile object for displaying a composite image composed of the position data of the mobile object and the map data, in response to the transmitted data from the key station.

Title
Mobile object navigation system.
Application Number
EP19900101019 19900118
Publication Number
0379198 (A2)
Application Date
January 18, 1990
Publication Date
July 25, 1990
Inventor
Miyazaki Masao
Nakano Hiroshi
Ohta Tomozo
Assignee
Sharp
JP
IPC
G08G 01/0969
G01S 05/14
G01S 05/02
G08G 01/127
G08G 01/123
G01S 05/14
G01S 05/00
G01C 21/26
G08G 01/137
G08G 01/13
G01S 05/14
G01S 05/00
G01C 21/26
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