| 摘要 |
PURPOSE: A video signal synchronizer of an image display device according to the quality of a communication line is provided to change the delay time of a video signal. CONSTITUTION: A Bluetooth unit(130) transmits an audio signal. A Bluetooth headset(170) outputs the audio signal of the Bluetooth unit. A control unit(150) computes the output time difference of the video signal and the audio signal. According to the time difference, the controller delays the output of the video signal. A buffer unit(120) provisionally stores the video signal according to time difference information. A memory unit(160) stores the operated time difference information.
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