METHOD OF DISTINGUISHING FIRST CODING PATTERN FROM SECOND CODING PATTERN
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United States of America Patent
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Issued Date -
Apr 8, 2010
app pub date -
Aug 11, 2009
filing date -
Oct 2, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method of imaging either a first coding pattern or a second coding pattern disposed on a surface. The method comprises the steps of: (a) operatively positioning an optical reader relative to the surface; (b) capturing an image of a portion of the first or second coding pattern; (c) sampling and decoding a registration symbol contained in the imaged portion; (d) determining an identifier of the first or second coding pattern, the identifier indicating a number of cells contained in a tag; (e) determining whether the optical reader is positioned relative to the first coding pattern or the second coding pattern; (f) using the indicated number of cells to sample and decode tag data.
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