| 摘要 |
An exemplary portable electronic device includes a main body, a cover movably connected with the main body, a piezoelectric sensing unit, and a signal processing unit. The piezoelectric sensing unit is partially positioned on the main body and the cover. The piezoelectric sensing unit generates elastic deformation due to the relative displacement of the cover and the main body to generate a corresponding command signal. The signal processing unit is electrically connected to the piezoelectric sensing unit, and capable of actuating different modes of the portable electronic device according to the command signal.
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