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:
Mar. 23, 2004
Filed:
Aug. 13, 2001
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Abstract
A distributed data archive device ( ) is placed on an arbitrary location on a network ( ) so that data can be saved and extracted. During data saving, a to-be-saved data file (F ) is given to the archive device ( ), and a division/encryption means ( ) carries out division/encryption, and individual divided files are distributed and saved onto data servers ( ) by a network communication means ( ). A data management means ( ) forms management data that shows a division/encryption method and a depository-destination data server, and records it onto a portable recording medium ( ) during the data saving. During data extraction, the portable recording medium ( ) is connected to an arbitrary archive device ( ), and the management data is read. Based on this management data, the divided files are extracted from the depository destinations, and are reconstituted into the original data file (F ) by a decryption/integration means ( ).