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:
Mar. 18, 2014

Filed:

Jan. 06, 2012
Applicants:

Yong Liao, Sunnyvale, CA (US);

Antonio Nucci, San Jose, CA (US);

Inventors:

Yong Liao, Sunnyvale, CA (US);

Antonio Nucci, San Jose, CA (US);

Assignee:

Narus, Inc., Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for managing a secured document. The method includes storing and retrieving the secured document based on hybrid fragmentation and replication scheme to provide user viewing of the secured document by (a) generating an image representing human discernible content of the secured document, (b) modifying the image to generate a modified image that is embedded with a digital watermark, where the digital water mark is human indiscernible and represents a security policy extracted from the secured document, and (c) sending, to a secured device for displaying to the requesting user, the modified image embedded with the digital watermark.


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