The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 29, 2003
Filed:
Nov. 08, 2000
Michihiro Kaneko, Tsurugashima, JP;
Keiichi Yamauchi, Tsurugashima, JP;
Koichi Nagaki, Tsurugashima, JP;
Pioneer Corporation, Tokyo-To, JP;
Abstract
A navigation system is provided with: a present position detecting device for detecting a present position of a movable body; a reading device for reading map data recorded on a recording medium; a nonvolatile storage device for storing the map data thereon; a selecting device for selecting an area as an object to be transmitted in accordance with the present position; a transmitting device for reading the recorded map data corresponding to the area from the recording medium and transmitting the read map data to the nonvolatile storage device at a predetermined timing; and a controlling device for controlling a navigation operation to assist the movable body in traveling on the basis of the recorded map data on the recording medium and the stored map data on the nonvolatile storage device.