Non-contact input apparatus for computer peripheral and method of the same
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United States of America Patent
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Sep 30, 2014
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app pub date -
Mar 21, 2012
filing date -
Mar 23, 2011
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Abstract
A non-contact input apparatus for computer peripheral includes an induction module and a pointing module. The induction module includes an electric supply coil and an induction element, and the pointing module includes an energy coil and a non-linear element. The electric supply coil is used to send a first oscillation signal. The energy coil receives the first oscillation signal. The non-linear element converts the first oscillation signal to be a second oscillation signal having multiple higher harmonics. The induction element generates a control signal based on the second oscillation signal.
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