Method and arrangement for tracking movement relative to a surface
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United States of America Patent
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Jan 8, 2013
Grant Date -
Jun 16, 2011
app pub date -
Feb 24, 2011
filing date -
Oct 6, 1995
priority date (Note) -
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Abstract
In an embodiment, a method of tracking movement relative to a surface involves comparing at least some data elements of a first array with at least some of data elements of a second array if it is determined, from an examination of the first array of data elements, that a characteristic condition does not exist in the first array of data elements, wherein the characteristic condition is related to the uniformity of at least a majority of the data elements of the first array.
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