Piezoelectric identification device and applications thereof
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United States of America Patent
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Aug 13, 2013
Grant Date -
Sep 23, 2010
app pub date -
Mar 23, 2009
filing date -
Mar 23, 2009
priority date (Note) -
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Abstract
Provided is a transducer having first and second surfaces including first electrode lines positioned along the first surface in a first direction and configured for grounding and second electrode lines positioned along the second surface in a direction orthogonal to the first direction. The second electrode lines are configured switching between receiving and transmitting in an interlaced manner.
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