0539146-A2 is referenced by 12 patents and cites 1 patents.

A navigation system (100) is provided with: a storage device (DK) for storing map data and supplementary service data; a position detecting device (21, 22, 23, 24) for detecting a current position of a movable body to which the navigation system is equipped; a display device (13) for displaying a map image; ; and a display control device (10), coupled to the storage device, the position detecting device and the display device, for reading the stored map data and the stored supplementary service data corresponding to a peripheral area of the detected current position, making the display device display the map image and a supplementary service data image having a transparent background pattern superimposed on the map image, such that a portion of the map image at the supplementary service data image is displayed through the transparent background pattern, on the basis of the read map data and the read supplementary service data.

Title
Navigation system.
Application Number
EP19920309554 19921020
Publication Number
0539146 (A2)
Application Date
October 20, 1992
Publication Date
April 28, 1993
Inventor
Siota Tomoki
JP
Hirayama Naofumi
JP
Someya Chiharu
JP
Hamada Michiaki
JP
Nobe Kenichi
JP
Arakawa Takeharu
JP
Araki Morio
JP
Assignee
Pioneer Electronic
JP
IPC
G01C 21/20
G09B 29/10
G08G 01/0969
G01S 05/14
G01C 21/34
G01C 21/00
G09B 29/10
G08G 01/0969
G01S 05/14
G01C 21/36
G01C 21/00
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