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:
Feb. 21, 2012
Filed:
Jun. 20, 2008
Hongxia Jin, San Jose, CA (US);
Jeffrey Bruce Lotspiech, Henderson, NV (US);
Avinash Laxmisha Varna, Greenbelt, MD (US);
Hongxia Jin, San Jose, CA (US);
Jeffrey Bruce Lotspiech, Henderson, NV (US);
Avinash Laxmisha Varna, Greenbelt, MD (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
One embodiment of the present invention includes a method for traitor tracing that includes performing an inner code traitor tracing on a recovered pirated digital file, the recovered digital file incorporating an inner code for assigning segments of the digital file and an outer code for assigning inner codes to individual digital files. The method also includes extracting partial information regarding the outer code from the inner code tracing. An outer code tracing procedure may then be performed using the partial information.