Parallel distribution and fingerprinting of digital content
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Abstract
Distributing information, including the steps of watermarking the digital content, distributing the digital content using a multi-source system, and partially fingerprinting digital content at each stage of moving information from a point of origin to the viewer. “Adaptation” of the digital content to the recipient includes maintaining the digital content in encrypted form at each such intermediate device, including decrypting the digital content with a key unique to both the device and the specific movie, selecting a portion of the watermark locations into which to embed information, embedding fingerprinting information into those locations sufficient to identify the recipient, and encrypting the fingerprinted digital content with a new such key.
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Citations
92 Claims
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1-20. -20. (canceled)
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21. A multi-source system that includes a plurality of sources, comprising:
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at least one point of origin that generates, in response to digital content, watermarked digital content having a set of locations therein at which fingerprinting information can be embedded;
at least one intermediate device disposed between said point of origin and an end viewer, wherein said device partially fingerprints said digital content when sending information for presentation to said end viewer, whereby said partially-fingerprinted digital content is generated at each said intermediate device and includes information sufficient to identify that intermediate device and a recipient of that partially-fingerprinted digital content from that intermediate device. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58)
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- 59. A source in a multi-source system that includes a plurality of sources, said source comprising a point of origin that generates, in response to digital content, watermarked digital content having a set of locations therein at which fingerprinting information can be embedded.
- 63. A source in a multi-source system that includes a plurality of sources, said source comprising at least one intermediate device disposed between a point of origin for watermarked digital content generated from digital content and an end viewer, said watermarked digital content having a set of locations therein at which fingerprinting information can be embedded, wherein said intermediate device partially fingerprints said digital content when sending information for presentation to said end viewer, whereby said partially-fingerprinted digital content is generated at each said intermediate device and includes information sufficient to identify that intermediate device and a recipient of that partially-fingerprinted digital content from that intermediate device.
Specification