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. 19, 2011
Filed:
Sep. 10, 2001
Yoshihiro Hori, Gifu, JP;
Yoshihiro Hori, Gifu, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A log region (A) and a license region (B) are arranged in a memory of a memory card. The license region (B) stores licenses such as license IDs and license keys Kc as well as validity flags corresponding to entry numbers-(N−1). The log region (A) includes a receive log () and a send log (). The memory card serving as a sender of the license accepts a receive state from the memory card on a receiver side, and validates the validity flag of a region designated by the entry number in the send log () when the receive state is ON. Consequently, even when communication is interrupted during shifting or copying of the license, the license to be shifted or copied can be restored.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile