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:
Jun. 29, 2004
Filed:
Apr. 26, 1999
Applicant:
Inventor:
Bruce K. Geist, Sterling Heights, MI (US);
Assignee:
Unisys Corporation, Blue Bell, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/00 ; G06F 1/760 ;
U.S. Cl.
CPC ...
H04L 9/00 ; G06F 1/760 ;
Abstract
A method and a data file structure ( ) for embedding a digital signature verification key ( ) within a particular type of image data file enables validation of the image data ( ) autonomously—i.e. without consulting large external data bases of public keys or certificates.