Three dimensional data storage
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United States of America Patent
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Jun 5, 2007
Grant Date -
Feb 24, 2005
app pub date -
Apr 16, 2004
filing date -
Apr 16, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An identification document is provided comprising a printable layer, a computer readable data storage element, and a computer readable calibration element. The computer readable data storage element is formed on the printable layer and comprises a plurality of pixels, wherein each pixel has one of a predetermined plurality of colors. The computer readable calibration element is formed on the printable layer and comprises a plurality of pixels and includes information enabling a determination of the pixel size in the computer readable data storage element and also a determination of at least a portion of the predetermined plurality of colors.
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