Digital watermarks
First Claim
Patent Images
1. A method comprising;
- obtaining first audio content or first video content, wherein the first audio content or first video content includes a steganographic signal embedded therein;
determining at least one compression characteristic associated with the embedded first audio content or first video content using at least a programmed electronic processor; and
adjusting steganographic embedding of second audio content or second video content based at least in part on the compression characteristic.
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Abstract
The present invention relates generally to digital watermarking and steganographic data hiding. In one embodiment a method of rendering content to a user is provided. The rendered content includes a digital watermark embedded therein. In another embodiment, digital watermarking is utilized to facilitate purchase or lease of audio or video content over a network or with a remote computer. In still another embodiment, a compression characteristic is determined, and subsequent steganographic embedding is influenced based on the characteristic. Other embodiments are provided as well.
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Citations
17 Claims
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1. A method comprising;
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obtaining first audio content or first video content, wherein the first audio content or first video content includes a steganographic signal embedded therein; determining at least one compression characteristic associated with the embedded first audio content or first video content using at least a programmed electronic processor; and adjusting steganographic embedding of second audio content or second video content based at least in part on the compression characteristic. - View Dependent Claims (2, 3, 4, 5)
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6. A method comprising:
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obtaining compressed content; determining at least one characteristic associated with compression of the compressed content using at least a programmed electronic processor; and adjusting steganographic embedding of content based at least in part on the characteristic associated with the compression, wherein the steganographic embedding is configured to hide plural-bits in content through alterations to data representing content, and wherein the plural-bits comprise executable code. - View Dependent Claims (7, 8, 9, 10)
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11. A method comprising:
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obtaining compressed content; determining at least one characteristic associated with compression of the compressed content using at least a programmed electronic processor; and adjusting detection of a steganographically hidden code based at least in part on the characteristic associated with the compression, wherein the steganographically hidden code comprises plural-bits hidden in the content through alterations to data representing the content, and wherein the steganographically hidden code comprises executable code. - View Dependent Claims (12, 13, 14, 15)
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16. A method comprising:
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obtaining compressed content; determining at least one characteristic associated with compression of the compressed content using at least a programmed electronic processor; and adjusting steganographic embedding of content based at least in part on the characteristic associated with the compression, wherein the steganographic embedding is configured to hide plural-bits in content through alterations to data representing content, and wherein the plural-bits comprise a pointer to executable code.
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17. A method comprising:
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obtaining compressed content; determining at least one characteristic associated with compression of the compressed content using at least a programmed electronic processor; and adjusting detection of a steganographically hidden code based at least in part on the characteristic associated with the compression, wherein the steganographically hidden code comprises plural-bits hidden in the content through alterations to data representing the content, and wherein the steganographically hidden code comprises a pointer to executable code.
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Specification