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:
Apr. 17, 2012
Filed:
Aug. 03, 2004
Takuji Maeda, Osaka, JP;
Shinji Inoue, Osaka, JP;
Yoshiho Gotoh, Osaka, JP;
Jun Ohara, Ehime, JP;
Masahiro Nakanishi, Kyoto, JP;
Shoichi Tsujita, Kyoto, JP;
Tomoaki Izumi, Osaka, JP;
Tetsushi Kasahara, Osaka, JP;
Kazuaki Tamura, Osaka, JP;
Kiminori Matsuno, Osaka, JP;
Koichi Horiuchi, Nara, JP;
Manabu Inoue, Osaka, JP;
Makoto Ochi, Osaka, JP;
Takuji Maeda, Osaka, JP;
Shinji Inoue, Osaka, JP;
Yoshiho Gotoh, Osaka, JP;
Jun Ohara, Ehime, JP;
Masahiro Nakanishi, Kyoto, JP;
Shoichi Tsujita, Kyoto, JP;
Tomoaki Izumi, Osaka, JP;
Tetsushi Kasahara, Osaka, JP;
Kazuaki Tamura, Osaka, JP;
Kiminori Matsuno, Osaka, JP;
Koichi Horiuchi, Nara, JP;
Manabu Inoue, Osaka, JP;
Makoto Ochi, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A card information-storing portion is provided in a semiconductor memory card, and information relating to access performance such as access condition and access rate is held in the storing portion. Further, an access device acquires the held information from the semiconductor memory card to make it possible that the information can be used for control of a file system. This optimizes processing of the access device and the semiconductor memory card independent of differences in characteristics of semiconductor memory cards and management methods used, realizing high-rate access from the access device to a semiconductor memory card.