Navigation system

Details Navigation system Navigation system

1988-12-27

1990-09-04

Chin, Gary

Boots, shoes, and leggings

364444, 340990, 340995, G06F 1550

Patent

active

049549596

ABSTRACT:
A first external storage device which may be a CD stores data representing standard map of a particular area and that required for guidance, and a second external storage device which may be an IC card stores individual data which cannot be complemented by said data representing the standard map and said guidance data. Since the data is stored in both CD and IC card, the number of data can be reduced. This makes the operation simpler and enables a data that meets the demand of a user to be selectively supplied to the user. In consequence, guided navigation is made possible from any starting point to a destination, and data updating can be made relatively easy.

REFERENCES:
patent: 4481584 (1984-11-01), Holland
patent: 4570227 (1986-02-01), Tachi et al.
patent: 4608656 (1986-08-01), Tanaka et al.
patent: 4660037 (1987-04-01), Nakamura
patent: 4672563 (1987-06-01), Harumatsu et al.
patent: 4679147 (1987-07-01), Tsujii
patent: 4688176 (1987-08-01), Hirata
patent: 4744033 (1988-05-01), Ogawa et al.
patent: 4763270 (1988-08-01), Itoh et al.
patent: 4807157 (1989-02-01), Fukushima et al.
patent: 4812845 (1989-03-01), Yamada et al.

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