Navigation system

Data processing: vehicles – navigation – and relative location – Navigation – Employing position determining equipment

Reexamination Certificate

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Details

C701S207000, C340S990000

Reexamination Certificate

active

06876922

ABSTRACT:
A first navigation system is provided with: a present position detecting device (16, 17) for detecting a present position; a plurality of memory devices (14, 15) each capable of reading out map data which is recorded therein; a navigation controlling device (11) for controlling a navigation operation in correspondence with the detected present position by using the map data; and a map data reading device (11) for accessing one of the memory devices, which is selected in accordance with a predetermined condition, and reading out the map data required for the navigation operation therefrom.

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patent: 10-255022 (1998-09-01), None

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