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:
May. 18, 2004
Filed:
Dec. 14, 2000
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; a first memory device ( ) for reading map data from a record medium ( ) in which the map data is recorded; a second memory device ( ) of non-volatile type, to which the map data can be written and from which the map data can be read; a navigation controlling device ( ) for controlling a navigation operation in correspondence with the detected present position by using the map data, and sending a transfer command to transfer the map data from the first memory device to the second memory device at a predetermined timing; and a transfer interface ( ) for controlling an operation of reading the map data from the record medium by the first memory device and an operation of transferring the map data to the second memory device, in accordance with the sent transfer command.