USB-to-VGA converter
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United States of America Patent
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-
Apr 10, 2007
Grant Date -
Jun 17, 2004
app pub date -
Dec 11, 2002
filing date -
Dec 11, 2002
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A USB-to-VGA converter includes a USB controller connectable to a USB port of a computer for receiving USB based display signals from the computer, a VGA controller connectable to a display device for conveying VGA signals to the display device and a bridge connected between the USB controller and the VGA controller. The bridge receives a bus control command from the USB controller and issues a first-in-first-out control signal to the USB controller to receive the USB based display signals from the USB controller in a first-in-first-out manner. The bridge circuit converts the USB based display signals into corresponding VGA signals and forwarding the VGA signals to the VGA controller, which in turn applies the VGA signals to the display device. No display interface card is required inside the host computer for generation of the VGA signals.
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