Touch on glass
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United States of America Patent
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Dec 26, 2017
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app pub date -
Aug 28, 2015
filing date -
Aug 28, 2015
priority date (Note) -
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Abstract
A touch-sensitive glass barrier has a conductive coil affixed to the first side of a glass barrier, a capacitor connected to the conductive coil to form a resonator, and an inductance-to-digital converter (LDC) connected to drive an alternating current through the resonator. The LDC determines whether a conductive target has touched the second side of the glass barrier at a point opposite the conductive coil; and responsive to determining that the conductive target has touched the second side of the glass barrier at the point, provides a signal.
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