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US08290336B2 Keyboard having video and audio recording function 失效
键盘具有录像功能

Keyboard having video and audio recording function
摘要:
A keyboard for recording a video and an audio is disclosed. The keyboard having a video and an audio recording function includes a universal serial bus hub coupling with a computer system, a keyboard controller, coupled with the universal serial bus hub, for controlling a keypad matrix, and a video and audio processing module coupling with the universal serial bus hub. The video and audio processing module comprises an analog to digital converter for receiving an analog video signal and an analog audio signal and converting the analog video signal and the analog audio signal to a digital video signal and a digital audio signal, and an encoding controller for encoding the digital video signal and the digital audio signal into a formatted file according to a recording signal from the computer system and transmitting the formatted file to the computer system via the universal serial bus hub.
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