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. 07, 2009
Filed:
Feb. 25, 2004
Ryoichi Ueda, Yokohama, JP;
Kojiro Nakayama, Yokohama, JP;
Ryoichi Ueda, Yokohama, JP;
Kojiro Nakayama, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Structured documents written in a document structure definition language may be inconsistent with a predetermined document structure definition when they are encrypted partly or electronically signed. The document structure inspection method according to the present invention applies a document structure alteration rule to a document structure definition expressing the structure of such structured documents and effects conversion to generate a second document structure definition. The second document structure definition is then checked to determine whether it is consistent with a corresponding, predetermined document structure definition. The document structure alteration rule includes, for instance, a replacement rule for replacing an element contained in a document structure definition by another element, and an addition rule for adding an element to a location after the target document structure definition element.