TOUCH-SENSITIVE INPUT APPARATUS, ELECTRONIC APPARATUS AND TOUCH-SENSITIVE INPUT METHOD
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United States of America Patent
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Jul 14, 2017
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Jul 21, 2016
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Abstract
A touch-sensitive input apparatus includes an input device, at least one piezoelectric device and a circuit board. The piezoelectric device contacts the input device and receives a pressure from the input device to deform and generate an output voltage. The circuit board electrically connects with the piezoelectric device and includes a processing module and a power supply module. The processing module electrically connects with the piezoelectric device and receives the output voltage, the processing module calculates a pressure value corresponding to the pressure according the output voltage, and outputs an execution event when the pressure value exceeding a predetermined pressure value. The power supply module is electrically connected with the processing module and the piezoelectric device and outputs an alternate current to the piezoelectric device according to the execution event, so that the piezoelectric device generates tensile deformations and compression deformations alternately to drive the input device to generate vibration.
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