Appeal No. 2003-0357
Application 09/123,307
The disclosed invention pertains to a technique for
selectively presenting a first and second video image to a video
output device. The technique uses two video buffers, one holding
a cover or clean screen, and the other holding a verbose screen.
Upon execution of the startup instructions, the output of the
first or second video buffer is provided to the display device
depending on whether the video device is in the clean mode or the
verbose mode.
Representative claim 1 is reproduced as follows:
1. In a computer system having a processor, a bus coupled
to the processor, a memory coupled to the bus, and a video output
device coupled to the bus, the memory containing a first video
buffer and a second video buffer and further containing a set of
startup instructions, the video output device having a clean mode
and a verbose mode, a method of selectively presenting a first
and second video image to the video output device, the method
comprising the steps of:
executing the startup instructions, and upon execution of
the startup instructions:
determining whether the mode of the video output device is
the clean mode or the verbose mode;
when the video output device is in the clean mode, providing
a first image to the video output device, the first image being
defined by the contents of the first video buffer; and
when the video output device is in the verbose mode,
providing a second image to the video output device, the second
image being defined by the contents of the second video buffer.
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