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US 7,185,201 B2Granted
Content identifiers triggering corresponding responses
AssigneeDigimarc Corporation
InventorsGeoffrey B. Rhoads, Kenneth L. Levy
Life of this patent
Estimating the term…
Abstract
Fingerprint data derived from audio or other content is used as an identifier, to trigger machine responses corresponding to the content. The fingerprint can be derived from the content, and also separately encoded in a file header. Digital watermarks can also be similarly used.
Claims20
A method comprising:
- obtaining fingerprint data from a file header associated with a file, the fingerprint data being associated with contents of the file;
- checking the integrity of the fingerprint data;
- if the check leaves doubt about the fingerprint data thus obtained, then recalculating fingerprint data from contents of the file;
- and
- transmitting the fingerprint data to a database.
2 more elements
A method comprising:
- obtaining watermark data from a file header associated with a file, the watermark data being associated with contents of the file;
- checking the integrity of the watermark data;
- if the check leaves doubt about the watermark data thus obtained, then detecting watermark data from contents of the file;
- and
- transmitting the watermark data to a database.
2 more elements
A method comprising:
- (a) obtaining identifier data by reference to first data conveyed with a file;
- (b) if there is cause to doubt the identifier data thereby obtained, then deriving identifier data from contents of the file by application of an algorithm thereto;
- and
- (c) taking action based on said derived identifier.
1 more element
Dependencies are inferred from the claim text.