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:
Aug. 08, 2006
Filed:
May. 03, 2002
Shuuji Watanabe, Tokyo-to, JP;
Yoshihide Hamaguchi, Kawagoe, JP;
Kenichiro Yano, Kawagoe, JP;
Satoshi Saitoh, Kawagoe, JP;
Shuuji Watanabe, Tokyo-to, JP;
Yoshihide Hamaguchi, Kawagoe, JP;
Kenichiro Yano, Kawagoe, JP;
Satoshi Saitoh, Kawagoe, JP;
Pioneer Corporation, Tokyo-to, JP;
Abstract
An upgrade method for navigation data is provided with: a memory status of a memory device that is removed from a navigation apparatus is checked and it is determined whether there are the navigation data to be upgraded and the user data to be saved. The user data is saved in a backup memory device. The navigation data is written over with upgraded navigation data. Then, the saved data is read from the backup memory device and rewritten in the memory device as the user data.