Steganographic encoding
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United States of America Patent
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Nov 15, 2011
Grant Date -
Nov 11, 2010
app pub date -
Jul 20, 2010
filing date -
Apr 16, 1998
priority date (Note) -
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Abstract
The present invention relates generally to steganographic encoding. One claim recites a consumer product including: a metallic or shinny surface including a machine-readable pattern, the machine-readable pattern including plural-bit auxiliary data hidden in a steganographic manner, and the pattern provides at least diffuse or Lambertian reflection. Another claim recites a consumer product including: a shiny or metallic surface including a pattern, the pattern including or representing the auxiliary data in a steganographic manner, and in which the pattern is provided with an ink or dye and in which at least one of a coloration or finish of the ink or dye is selected to hide the ink or dye with respect to at least one of a first coloration or the first finish. The auxiliary data comprises or links to information regarding the physical object. Of course, other claims and combinations are also provided.
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