Parallel distribution and fingerprinting of digital content
First Claim
1. A method, including steps of:
- generating, in response to digital content, watermarked digital content having a set of locations therein at which fingerprinting information can be embedded;
distributing said digital content using a multi-source system, said multi-source system including at least one point of origin and at least one intermediate device disposed between said point of origin and an end viewer; and
partially fingerprinting said digital content at each intermediate device when sending information for presentation to said end viewer, whereby partially-fingerprinted digital content is generated at each said intermediate device.
1 Assignment
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Accused Products
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
20 Claims
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1. A method, including steps of:
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generating, in response to digital content, watermarked digital content having a set of locations therein at which fingerprinting information can be embedded;
distributing said digital content using a multi-source system, said multi-source system including at least one point of origin and at least one intermediate device disposed between said point of origin and an end viewer; and
partially fingerprinting said digital content at each intermediate device when sending information for presentation to said end viewer, whereby partially-fingerprinted digital content is generated at each said intermediate device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification