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OwnerSeung-Won Shin, Jong-Weon Kim +2inventors
InventorsSeung-Won Shin, Jong-Weon Kim, Han-Ho Lee, Chang-Mok Park
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In embedding a watermark in a digital audio contents, a model using a minimum audible limit of the digital audio contents is generated and a series of pseudo random number is masked to generate the watermark to be inserted in the digital audio contents In order to extract the watermark embedded in the digital audio contents, an auditory psychological model having a minimum audible limit, which depends on the characteristic of frequency generated from the digital audio contents, is formed to generate the watermark from a series of pseudo random number. After generating the watermark, the length of the watermark is adjusted according to the relationship of a signal processing between the adjacent digital audio contents. By measuring the correlation between the watermark and digital audio contents, it is possible to detect whether the watermark is inserted or not.
(Amended) A method for embedding a digital watermark in the digital audio contents, comprising:
(Amended) A method for extracting a watermark from the digital audio contents, the method including:
(Amended) A device for embedding watermark in the digital audio contents, the device including:
(Amended) A device for extracting watermark from the digital audio contents, the device including:
(Amended) The device according to claim 24, wherein said means for adjusting the length of the watermark includes:
Dependencies are inferred from the claim text.