Invention Grant
US08667289B2 System for controlling the distribution and use of rendered digital works through watermarking 失效
通过水印控制渲染数字作品的分发和使用的系统

System for controlling the distribution and use of rendered digital works through watermarking
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.
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