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US 2007/0177761 A1Published application
Watermark embedding functions adapted for transmission channels
AssigneeDigimarc Corporation
InventorKenneth Levy
Life of this patent
Estimating the term…
Abstract
A method for controlling watermark embedding in a media object through the use of a watermark embedding command. The use of the embedding command enables watermark embedding to be adapted for the transmission channel at the time of transmission.
Claims15
A method for controlling embedding of a digital watermark in a media signal, comprising:
- receiving a watermark embedding function specifying watermark embedding parameters, including watermark message payload;
- storing the watermark embedding function in association with the media signal;
- and
- at transmission of the media signal into a transmission channel, reading the watermark embedding function and steganographically embedding the watermark message payload into the media signal by making adjustments to the media signal to adapt the digital watermark to the transmission channel.
1 more element
A media object processing system comprising:
- input means for enabling a user to specify commands for a media object, including a watermark embedding function to be applied to the media object, the watermark embedding function including parameters controlling embedding of a watermark message payload in the media object;
- and a watermark embedder module for steganographically embedding the watermark message payload into the media object based on the watermark embedding function and a transmission channel;
- the watermark embedder module varying adjustments of the media object with the transmission channel to embed the watermark message payload in the media object dependent on the transmission channel.
A computer readable medium comprising:
- one or more commands describing how to embed a digital watermark in a media object;
- and
- a watermark embedding function specifying how to embed a watermark message payload into the media object, wherein adjustments made to embed the watermark message payload vary with the transmission channel.
Dependencies are inferred from the claim text.