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.

Date of Patent:
Aug. 04, 2015

Filed:

Aug. 12, 2013
Applicant:

Intertrust Technologies Corporation, Sunnyvale, CA (US);

Inventors:

Michael K. MacKay, Los Altos, CA (US);

W. Olin Sibert, Lexington, MA (US);

Richard A. Landsman, Scotts Valley, CA (US);

Eric J. Swenson, Santa Cruz, CA (US);

William Hunt, Walnut Creek, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/14 (2006.01); G06F 21/10 (2013.01); G06F 21/55 (2013.01); G06F 21/57 (2013.01); G06F 17/30 (2006.01); G06K 19/00 (2006.01); G11C 7/00 (2006.01); G06F 11/30 (2006.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
G06F 21/10 (2013.01); G06F 21/55 (2013.01); G06F 21/577 (2013.01);
Abstract

Systems and methods are provided for protecting electronic content from the time it is packaged through the time it is experienced by an end user. Protection against content misuse is accomplished using a combination of encryption, watermark screening, detection of invalid content processing software and hardware, and/or detection of invalid content flows. Encryption protects the secrecy of content while it is being transferred or stored. Watermark screening protects against the unauthorized use of content. Watermark screening is provided by invoking a filter module to examine content for the presence of a watermark before the content is delivered to output hardware or software. The filter module is operable to prevent delivery of the content to the output hardware or software if it detects a predefined protection mark. Invalid content processing software is detected by a monitoring mechanism that validates the software involved in processing protected electronic content. Invalid content flows can be detected by scanning the information passed across system interfaces for the attempted transfer of bit patterns that were released from an application and/or a piece of content management software.


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