Region encoding using substantially undifferentiated marks
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United States of America Patent
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-
Apr 11, 2006
Grant Date -
Mar 24, 2005
app pub date -
Nov 12, 2004
filing date -
May 25, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A region defined in relation to a surface having a plurality of regions. The region includes coded data disposed thereon or therein, which is adapted to distinguish the region from each other ones of the plurality of regions. The coded data includes a plurality of substantially undifferentiated marks, and is indicative of a region identity associated with the region and a plurality of reference points within the region.
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