Identity-coded surface with coded marks
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United States of America Patent
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-
Sep 14, 2010
Grant Date -
May 22, 2003
app pub date -
Nov 12, 2002
filing date -
May 25, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A region defined in relation to a surface, and a method for defining such a region; coded data being disposed within the region, the coded data being indicative of an identity of the region; in one embodiment, the coded data comprising a plurality of tags which substantially cover the region, the tags being usable to uniquely identify the region or at least distinguish it from other regions defined in relation to the surface.
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