Archived from groups: alt.video.laserdisc (
More info?)
It will be interesting. You take the 8-bit digitized composite signal and
send it out with clocking. Then perform all the TBC, line-dropout,
digitally separate the Y/C with the best comb filter you can get. You may
have to do digital signal level adjustments as at the point the X9 converts
the analog to 8-bit the composite level is 1.7 Vp-p also the 1.0 Vp-p NTSC
Standard. Don't know if you'll be able to parallel the data out or have to
add circuitry to stream it.
I wonder if the best route is to purchase a Faroudja DVP-1010 and use that,
it outputs DVI and the Faroudja products I've seen outperform the others.
Kurtis
"Mattias Karlsson" <nin@beta.telenordia.se> wrote in message
news:225c767a.0410230239.12492abd@posting.google.com...
> oneactor1@aol.com (Steve Grauman) wrote in message
> news:<20041022213946.07524.00002562@mb-m11.aol.com>...
>> >But no mods for new comb filter with DVI/SDI
>> >output yet
>>
>> Based on what I read in the comb-filter thread, it seems as though the
>> HLD-X9's
>> comb filter is as good as it gets and that many high-end projection
>> televisions
>> are still using the X9's filter. That said, I'm not sure I see the
>> advantage in
>> adding DVI to a laserdisc player. Having a direct-digital output for
>> analog
>> source material seems pointless, and IMO, would probably only serve to
>> decrease
>> picture quality by adding an unnecesary A/D conversion which will only
>> need to
>> be reversed (via D/A conversion) in tube and CRT-Lens projection sets
>> which are
>> not "true digital" display devices like DLP, LCD and Plasma sets and
>> projectors
>> are.
>> Steve Grauman
>
> Hi Steve!
>
> Like Josh said, you will lose at least one D/A and in most cases A/D.
> For example, I have the Crystalio video processor and that have DVI
> and SDI input and all conversion degrade the picture little. I have
> been in contact with Techwell and they have a comb filter (3D motion
> adaptive) that you can send out the signal from it with SDI or DVI. I
> think the problem is to make it work in the X9.
>
> I cannot tell more what he have done but there is rather much and we
> will see, in a technical view it SHOULD gain the picture quality and I
> don't think it is too hard to do it.
>
> I let you know when we try it out more
>
> /Mattias