Method and system for digital watermarking
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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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Citations
100 Claims
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1-52. -52. (canceled)
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53. A method for applying a digital watermark to a content signal, comprising the steps of:
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c) generating a watermarking key comprising a binary sequence and information describing application of the binary sequence to the content signal;
c) encoding the digital watermark within the content signal at one or more locations determined by the watermarking key; and
c) generating a symmetric key pair associated with the watermarking key. - View Dependent Claims (54, 55, 56, 57, 58)
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59-86. -86. (canceled)
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87. A method for decoding a digital watermark encoded in a content signal, comprising the steps of:
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a) identifying a key comprising a binary sequence and information describing where in the content signal a digital watermark is encoded; and
b) decoding the digital watermark at one or more locations determined by the key. - View Dependent Claims (88, 89, 90, 91, 92, 93)
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94. A device for decoding digital watermarks, the device comprising:
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a receiver for receiving a content signal encoded with at least one digital watermark; and
a decoder for decoding at least one digital watermark from the encoded content signal. - View Dependent Claims (95, 96, 97, 98, 99, 100)
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Specification