Use of actuator as sensor for input
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United States of America Patent
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Sep 14, 2021
Grant Date -
Dec 10, 2020
app pub date -
Jun 5, 2019
filing date -
Jun 5, 2019
priority date (Note) -
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Abstract
An electronic device including an actuator and a driving circuit electrically coupled to the actuator. The driving circuit can be configured to determine a resonance frequency of the actuator and deliver a driving frequency matching the resonance frequency to the actuator, as well as a driving voltage. The electronic device also includes a memory and a processor. The processor can determine the presence of a force applied to the electronic device based on the resonance frequency of the actuator. Based on determining a force is being applied to the electronic device, the processor can execute a predetermined function of the electronic device.
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