| 摘要 |
An audio and video playing system includes a controlling device and an audio and video playing device. The controlling device executes a movement. The audio and video playing device has an optical sensing unit and a processing unit. The optical sensing unit senses an image of the controlling device and outputs a signal to the processing unit. The processing unit recognizes the signal to determine the movement of the controlling device and outputs a corresponding control command to control the audio and video playing device.
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