Invention Grant
- Patent Title: System for controlling the distribution and use of rendered digital works through watermarking
- Patent Title (中): 通过水印控制渲染数字作品的分发和使用的系统
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Application No.: US13495469Application Date: 2012-06-13
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Publication No.: US08667289B2Publication Date: 2014-03-04
- Inventor: Mark J. Stefik , Glen W. Petrie , Steve A. Okamoto , Nicholas H. Briggs
- Applicant: Mark J. Stefik , Glen W. Petrie , Steve A. Okamoto , Nicholas H. Briggs
- Applicant Address: US TX Plano
- Assignee: ContentGuard Holdings, Inc.
- Current Assignee: ContentGuard Holdings, Inc.
- Current Assignee Address: US TX Plano
- Agency: Reed Smith LLP
- Agent Marc S. Kaufman; Stephen M. Hertzler
- Main IPC: H04L29/06
- IPC: H04L29/06 ; G06F9/32 ; G06F7/04 ; H04N7/167

Abstract:
Method, apparatus, and media for embedding a watermark in digital content. An exemplary method comprises receiving digital content in an encrypted form, receiving a decryption key associated with the digital content, receiving permitted use information specifying conditions under which the digital content is permitted to be rendered and indicating that a watermark is to be embedded in a rendered copy of the digital content, determining whether the conditions are satisfied, and rendering the digital content if the conditions are satisfied based on the determining, the rendering including generating a watermark based on the permitted use information and creating a rendered copy of the digital content having the watermark embedded therein.
Public/Granted literature
- US20120317419A1 SYSTEM FOR CONTROLLING THE DISTRIBUTION AND USE OF RENDERED DIGITAL WORKS THROUGH WATERMARKING Public/Granted day:2012-12-13
Information query