Re: On RGB-to-component conversion

["Michael J. Mahon" <mjmahon@aol.com>]

js@cimmeri.com wrote:
> Correction to myself:
>
>
> > This gave me an excuse to start digging into what would be involved in
> > connecting a IIGS to a component input.  There's an off-the-shelf option
> > that might work.  The Audio Authority 9A60 (google for it) is popular among
> > MythTV users who drive HD monitors with their computers.  It's anywhere from
> > $100 on up, though.
>
>
>
> ** I get the impression that the 9A60 might not work for 480i scan
> rates.
>
> I'm not sure I'm wrong in this claim, but I'm not sure I'm right
> either.   Rather, it's the Key Digital ClearVideo3 converter that
> states in its specs, "Does NOT support 480i or 576i video inputs".
> I'm not sure what inputs they are referring to... those of the monitor,
> or those on the device.   Anyone thinking of purchasing the Audio
> Authority 9A60 or the Key Digital CV3 might want to check with their
> tech support first.

Not having read anything about the ClearVideo3 than this, I note that
the only problem may be in supporting non-progressive video (interlace).

If that's the case, then it would not be an issue for an Apple II...

But I think the real issue is that it is purely a real-time, in-line
video signal processor.  It does not in any way modify the timing of
the video signals, but only re-matrixes them into "component" color
space.  Therefore, its output is exactly the same scan format as its
input, like it or not.  (If I've mixed this up with another box,
my apologies...)

-michael

Parallel computing for 8-bit Apple II's!
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