ELECTROMAGNETIC TOUCH DEVICE
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United States of America Patent
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Issued Date -
Oct 17, 2013
app pub date -
Mar 14, 2013
filing date -
Apr 11, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An electromagnetic touch device is adapted to cooperate with a signal generation unit. The electromagnetic touch device includes a sensing unit and a control unit. The sensing unit includes a plurality of antenna modules which form a sensing zone, are adjacent to each other, do not overlap, and receive an electromagnetic signal generated by the signal generating unit, to generate a plurality of electromagnetic sensing signals. The control unit coupled to the antenna modules receives the electromagnetic induction signals and calculates a location of the signal generating unit in the sensing zone according to intensities of the electromagnetic sensing signals.
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