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:
Jul. 16, 2002
Filed:
Jul. 29, 1998
Fujitsu Limited, Kawasaki, JP;
Abstract
An electronic data storage apparatus includes a data storage unit for storing electronic data; an authentication information generation unit for generating authentication information used in detecting an amendment made to the stored electronic data; and an authentication information data output unit for outputting the electronic data after adding to the electronic data the authentication information generated for the electronic data. When an authorization unit authorizes the electronic data storage apparatus after it is determined that the specification of the electronic data satisfies a predetermined condition, or when mutual authentication is performed between electronic data storage apparatuses, the electronic data storage apparatus stores the data. Thus, the electronic data can be protected from being illegally amended or deleted, and can be safely stored in a format in which sufficient legal evidence can be maintained on the electronic data.