Device for generating watermark metadata, associated device for embedding watermark
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United States of America Patent
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Jul 14, 2015
Grant Date -
Jun 13, 2013
app pub date -
Dec 13, 2012
filing date -
Dec 13, 2011
priority date (Note) -
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Abstract
A device for generating metadata associated with a content intended to be watermarked with an identifier stored in a device for embedding a watermark is disclosed. The device for generating metadata comprises a processor configured to generate metadata. The metadata comprises (i) an instruction for deriving a current payload bit from the identifier wherein the current payload bit is determined from a lookup index wherein the instruction for deriving a current payload bit indicates to which position in the identifier corresponds the current payload bit, or from a XOR function applied to a plurality of bits of the identifier, wherein the instruction for deriving a current payload bit comprises a binary mask indicating which bits in the identifier corresponds to XORed bits.
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