Method and system for digital watermarking
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Accused Products
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.
132 Citations
122 Claims
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1-100. -100. (canceled)
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101. An article of manufacture for authorized distribution of multimedia content comprising a machine-readable medium having stored thereon instructions adapted to be executed by a processor, the instructions which, when executed, result in the process:
- receiving at least one copy of content to be imperceptibly encoded with at least one digital watermark; and
encoding the digital watermark into one or more locations in the content utilizing a key associated with a plurality of functions. - View Dependent Claims (102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112)
- receiving at least one copy of content to be imperceptibly encoded with at least one digital watermark; and
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113. An system for authorizing content comprising:
- a receiver to receive a potentially watermarked signal;
a selector to select a portion of the potentially watermarked signal to detect a digital watermark; and
, a processor to determine the contents of the detected digital watermark with a key. - View Dependent Claims (114, 115, 116, 117, 118, 119, 120, 122)
- a receiver to receive a potentially watermarked signal;
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121. An article of manufacture for authorizing content comprising a machine-readable medium having stored thereon instructions adapted to be executed by a processor, the instructions which, when executed, result in the process:
- receiving a potentially watermarked signal;
selecting a portion of the potentially watermarked signal to detect a digital watermark; and
, determining the contents of the detected digital watermark with a key.
- receiving a potentially watermarked signal;
Specification