Video signal conversion method
OwnerChung-Chih Tunginventor
Life of this patent
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Abstract
The invention discloses a video signal conversion method, which uses the BIOS to determine whether the purpose that the user turns on the machine is for watching the TV or for usual computer operations before an OS is loaded. When the user wants to watch the TV, the BIOS directly control a Video tuner chip, a video capture chip, a VGA chip to perform video signal tuning, capture and control. Finally, the BIOS drives a display to show the video signals in visible images. Through the disclosed video signal conversion method, the video signal conversion operation of using a computer to watch TV becomes closer to a conventional TV. This does not only simplify the operation procedure but also saves a lot of time in waiting for an OS to be loaded in as in the prior art.
Claims17
A video signal conversion method for a computer that is not installed with or has not loaded in any OS (Operating System), which comprises the steps of:
- obtaining a power on signal;
- obtaining a channel selection signal when the power on signal is a TV selection signal;
- obtaining a video signal according to the channel selection signal;
- capturing the video signal;
- and
- driving a display to turn the video signal into a visible image.
A video signal conversion method for a computer that is not installed with or has not loaded in any OS (Operating System), which comprises the steps of:
- obtaining a power on signal;
- initializing a VGA chip, a video tuner chip, and a video capture chip when the power on signal is a TV selection signal;
- obtaining a channel selection signal;
- obtaining a video signal according to the channel selection signal;
- demodulating the video signal into a tuned signal using the video tuner chip;
- capturing the tuned signal as a capture signal using the video capture chip;
- and
- driving a display to turn the capture signal into a visible image using the VGA chip.
Dependencies are inferred from the claim text.