Methods and apparatus for data input
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United States of America Patent
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Jan 19, 1999
Issued Date -
N/A
app pub date -
Dec 11, 1996
filing date -
Jul 13, 1992
priority date (Note) -
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Abstract
Methods and apparatus for data input. Devices are provided in accordance with this invention which utilize capacitive coupling of an object to the device to sense the object's position. The devices are comprised of a plurality of electrode strips which form virtual electrodes. The virtual electrodes are selectively connected to form virtual dipole electrodes which are responsive to the object's position.
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