Upstream
The direction of data flow towards the host. An upstream port is the port on a device electrically
closest to the host that generates upstream data traffic from the hub. Upstream ports receive
downstream data traffic.
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V
Vertical refresh rate
Expressed in Hz, it is the number of frames (complete pictures) written to the screen every second.
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file:///F|/OEM MODELS/philips/CD Manual/19/190B7/lcd/manual/ENGLISH/190B7/glossary/glossary.htm 第 9 頁 / 共 9 2006/3/28 下午 07:11:13
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