RE: cmos accessibility setup thoughts
- From: "Sina Bahram" <sbahram@xxxxxxxxx>
- To: <programmingblind@xxxxxxxxxxxxx>
- Date: Thu, 21 Apr 2011 14:35:54 -0400
That's called s-video, and you'd be better off sampling VGA, as it's probably
the best understood in terms of hardware.
also, I don't disagree that sampling DVI would be preferable. I was just
suggesting a way to get to VGA since it sounded like you
were trying to downsample for some reason or another.
The reason I feel DVI would be better than VGA is that DVI is digital and so
you'd have hard boundaries and delimiters with which to
structure code and hardware. VGA can technically support infinite resolution,
as long as you have clocks fast enough on both ends,
so that would probably make sampling it a bit trickier.
Take care,
Sina
-----Original Message-----
From: programmingblind-bounce@xxxxxxxxxxxxx
[mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of DaShiell, Jude T.
CIV NAVAIR
1490, 1, 26
Sent: Thursday, April 21, 2011 1:58 PM
To: programmingblind@xxxxxxxxxxxxx
Subject: RE: cmos accessibility setup thoughts
How do you sample vga output so it goes into a serial cable and a
hardware speech synthesizer can actually speak text? I only referred to
dvi since that's the kind of port on the vga video card I use. There's
another smaller round port but I don't know what kind of connector goes
into it and what possibilities that might open up if any on some video
cards that might be used as an alternative connection.
Is the e.f.i. or U.E.F.I. standard all part of digital rights
management? Ron thought it might be.
-----Original Message-----
From: programmingblind-bounce@xxxxxxxxxxxxx
[mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Sina Bahram
Sent: Thursday, April 21, 2011 13:48
To: programmingblind@xxxxxxxxxxxxx
Subject: RE: cmos accessibility setup thoughts
Why not simply pull down DVI to VGA with a 50 cent part, and then sample
the VGA as necessary?
Take care,
Sina
-----Original Message-----
From: programmingblind-bounce@xxxxxxxxxxxxx
[mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of DaShiell,
Jude T. CIV NAVAIR
1490, 1, 26
Sent: Thursday, April 21, 2011 1:11 PM
To: programmingblind@xxxxxxxxxxxxx
Subject: re: cmos accessibility setup thoughts
I found out last night that dvi to serial probably can't be done since a
high frequency digital signal has to be converted to a signal an rs232
serial connection can use. The technician I talked with last night told
me he doesn't know if the DVI standard has ever been defined and written
down anywhere yet too. Probability for now is we can't yet get there
from here yet. It may be possible to do the necessary signal transforms
using a small microprocessor on the cable though provided one could be
correctly programmed though.
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