Method and system for digital watermarking
DC CAFCFirst Claim
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1. A method for decoding digital watermarks, comprising:
- receiving a content signal encoded with a digital watermark; and
decoding, said digital watermark from said content signal using a key that comprises information describing where in the content signal said digital watermark is encoded.
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Abstract
A method for applying a digital watermark to a content signal is disclosed. In accordance with such a method, a watermarking key is identified. The watermarking key includes a binary sequence and information describing application of that binary sequence to the content signal. The digital watermark is then encoded within the content signal at one or more locations determined by the watermarking key.
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32 Claims
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1. A method for decoding digital watermarks, comprising:
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receiving a content signal encoded with a digital watermark; and decoding, said digital watermark from said content signal using a key that comprises information describing where in the content signal said digital watermark is encoded. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system for decoding digital watermarks, comprising:
- a digital watermark decoder configured to use a processor and a key that comprises information describing where in the content signal a digital watermark is encoded, to decode said digital watermark.
- View Dependent Claims (16, 17, 18, 19, 20, 21, 29, 30)
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22. A device for decoding digital watermarks, the device comprising:
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a receiver for receiving a content signal encoded with a digital watermark; and a decoder, configured to use a processor and a key that comprises information describing where in said content signal said digital watermark is encoded, to decode said digital watermark from said content signal. - View Dependent Claims (23, 24, 25, 26, 27, 28, 31, 32)
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Specification