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. 01, 2016
Filed:
Oct. 06, 2008
Gianluca Gargaro, Rome, IT;
Patrizio Trinchini, Genzano di Roma, IT;
Gianluca Gargaro, Rome, IT;
Patrizio Trinchini, Genzano di Roma, IT;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A codebook, comprising a number of groups of symbols in a predetermined pattern printed on a card or the like is issued to a user. The user is attributed or selects an extraction pattern representing an order of progression through the symbols in each group of symbols. When the user wishes to make an authentication action an authentication party challenges the user to submit the symbols found at selected positions in the extraction pattern. The user applies the extraction pattern to the codebook and retrieves the symbols found at the selected positions, and submits these to the authenticating party. The authenticating party applies the same extraction pattern to the same codebook, and determines whether the results match those submitted by the user, and in a case where the two sets of symbols match, authenticates the user.