Anyone for a DVI-D Input Card for Sony crt? - AVS Forum
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post #1 of 206 Old 10-13-2004, 07:09 PM - Thread Starter
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I’m about to have some prototype PCBs made for a DVI-D input module for the Sony 12xx and G series projectors. Is there any interest in a $150 - $200 card that has 24 bit color and supports all of the ATSC resolutions? HDCP will not be supported, but all of the circuitry needed to make the board HDCP compliant will be present (in the unlikely event the design would be licensed in the future).

Depending on the success and interest in the Sony version, different cards could be made for other brands of projectors.
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post #2 of 206 Old 10-13-2004, 07:25 PM
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Um, Yeah.

Yep. For sure.

Thanks,

Cliff
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post #3 of 206 Old 10-13-2004, 07:59 PM
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Sure. Lots of Sonys out there and I think your price point is good.
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post #4 of 206 Old 10-13-2004, 08:50 PM
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Not ready for it just yet. But good to see that the circuitry for HDCP will be ready to go if it is "licensed" in the future.

Wonder if there will be any HDCP hacking of "similar" projects. No way:D

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post #5 of 206 Old 10-14-2004, 01:59 AM
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I am still interested in 1 for my Marquee's,
At this stage we don't know if Jaehong Lee's unit will ever get any further than Korea.

So If you can build a unit then count me in.

Just so you know, the last count on my thread about interest in Jaehong's unit was up to -

Marquee - 34
1292 - 9
G90 - 8
G70 - 8
D50 - 1
XG - 10
PG - 4
1208 / 09 - 5
808 - 7

So that makes - 86

This list needs to be updated, but gives you an idea of the interest.

Cheers
Steve

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post #6 of 206 Old 10-14-2004, 07:21 AM
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I am there Dude !!

Graham
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post #7 of 206 Old 10-14-2004, 07:30 AM
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Nope, Not interested



Quote:
Originally posted by hdtvme
I’m about to have some prototype PCBs made for a DVI-D input module for the Sony 12xx and G series projectors. Is there any interest in a $150 - $200 card that has 24 bit color and supports all of the ATSC resolutions? HDCP will not be supported, but all of the circuitry needed to make the board HDCP compliant will be present (in the unlikely event the design would be licensed in the future).

Depending on the success and interest in the Sony version, different cards could be made for other brands of projectors.

We used to hunt and fish to survive. Now we have to work 50 wks. a year so we can take a couple of weeks off to hunt and fish
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post #8 of 206 Old 10-14-2004, 07:45 AM
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remember, raster's "happy" with s-video :D
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post #9 of 206 Old 10-14-2004, 08:44 AM
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make and nec xg dvi card and I'm all over it ! Raster doesn't sound happy about anything.
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post #10 of 206 Old 10-14-2004, 08:45 AM
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I would like one as well, keep us posted.

I honestly don't know how anyone could live with
a 7" screen in their minivan.
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post #11 of 206 Old 10-14-2004, 09:04 AM
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How will it handle HDCP compliant devices?

Ed
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post #12 of 206 Old 10-14-2004, 09:24 AM
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I would be interested in a leat one, possibly two for my 1272's.
I hate S-video

Jim
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post #13 of 206 Old 10-14-2004, 09:59 AM - Thread Starter
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It will have a place to store the HDCP keys, however no keys will be provided resulting in HDCP encrypted content being unwatchable. The cost of adding the hardware is low, so I put it in the design to support upgrading if a license is obtained later.

Quote:
Originally posted by edsuski
How will it handle HDCP compliant devices?

Ed
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post #14 of 206 Old 10-14-2004, 10:12 AM
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Will this be a fully functional card or just the circuit board that we would have to add the appropriate DVI chips to? Also, you said it will have a space for HDCP keys. What exactly does that mean? Could I take the HDCP chip out of a CRT based RPTV and solder it on the card for HDCP support?
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post #15 of 206 Old 10-14-2004, 11:17 AM
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I'd be interested in one Sony card. I can mount the components myself if necessary.
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post #16 of 206 Old 10-14-2004, 11:35 AM
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I'd be very interested in one of these cards for a 1272.
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post #17 of 206 Old 10-14-2004, 12:59 PM
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Quote:
Originally posted by raster
Nope, Not interested
Er, right, you need to get a projector first. I'm still waiting for you.:D

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post #18 of 206 Old 10-14-2004, 02:04 PM - Thread Starter
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The board will be populated with components and ready to use with non-HDCP sources. The "keys" consist of an eeprom image that is avaialble only from the IC vendor to licensed designs. I can't say anything about the posibilities of modifying or "patching" in keys from another device...

Quote:
Originally posted by GScott
Will this be a fully functional card or just the circuit board that we would have to add the appropriate DVI chips to? Also, you said it will have a space for HDCP keys. What exactly does that mean? Could I take the HDCP chip out of a CRT based RPTV and solder it on the card for HDCP support?
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post #19 of 206 Old 10-14-2004, 08:52 PM
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I would also be interested in one for a 1292.

Thanks,
Richard
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post #20 of 206 Old 10-14-2004, 09:08 PM
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XG1352 owner... certainly sounds interesting.

I assume the perceived benefit of this is in avoiding analog attenuation losses / noise pickup in the generally long RGB coax run to the projector. ie: The signal remains in the digital realm until right up close to the projector?

If so, why does this need to be projector specific? Why can't we just have a generic external DVI to RGBHV converter box?

Greg
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post #21 of 206 Old 10-14-2004, 09:36 PM
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Quote:
Originally posted by Clarence
remember, raster's "happy" with s-video :D
Really? I guess I'm going to have to take raster off my blocked members list. Looks like I'm missing out on some funny stuff.

At the moment I don't need a DVI-D input card, but I imagine at that price I'll buy one just in case I need it in the future.

Phil Smith
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post #22 of 206 Old 10-15-2004, 09:53 AM - Thread Starter
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What have we here?

http://www.digitalconnection.com/pro...ideo/dcda1.asp

Looks like HDCP enabled?
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post #23 of 206 Old 10-15-2004, 11:17 AM
 
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I would be very interested ...but one question...what would the HDCP not being encoded effect. I'm not sure what that means?

Thanks

Mark
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post #24 of 206 Old 10-15-2004, 02:22 PM
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Quote:
Originally posted by hdtvme
What have we here?

http://www.digitalconnection.com/pro...ideo/dcda1.asp

Looks like HDCP enabled?
Only does up to 1280x1024. If I was paying for a DVI input to my CRT projector, I would want to be able to go to 1920x1080/60Hz (which I think can be done on single link?).

Greg
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post #25 of 206 Old 10-15-2004, 03:57 PM
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Quote:
Originally posted by hdtvme
What have we here?

http://www.digitalconnection.com/pro...ideo/dcda1.asp

Looks like HDCP enabled?
Sure although HDCP compliant devices with an analog output are required to respect the "constrained image" flag and not output an image with an effective resolution beyond 960 x 540 when the flag is set.

If you feed a 720p constrained image signal to a HDCP compliant device like the one above, it can refuse to output anything OR down-scale to 960x540p and then interpolate back up to 1280x720p.

The constrained image bit would have no effect on a projector DVI HDCP input board as long as that board could not be used outside the projector.

How relevant this is depends on when the software providers begin requiring encrypted outputs and setting the constrained image bit.
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post #26 of 206 Old 10-15-2004, 04:20 PM
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Quote:
Originally posted by hdtvme
I’m about to have some prototype PCBs made for a DVI-D input module for the Sony 12xx and G series projectors. Is there any interest in a $150 - $200 card that has 24 bit color and supports all of the ATSC resolutions? HDCP will not be supported, but all of the circuitry needed to make the board HDCP compliant will be present (in the unlikely event the design would be licensed in the future).

Depending on the success and interest in the Sony version, different cards could be made for other brands of projectors.
Will the board satisfy the HDCP licensing constraints (presumably not useable in a PC-127x switcher?) necessary to allow full-resolution output of encrypted data with the constrained image flag set?
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post #27 of 206 Old 10-15-2004, 04:36 PM
 
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Drew,

What you just said, what did it mean?
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post #28 of 206 Old 10-20-2004, 04:42 PM
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Quote:
Originally posted by KoolKiwi
Only does up to 1280x1024. If I was paying for a DVI input to my CRT projector, I would want to be able to go to 1920x1080/60Hz (which I think can be done on single link?).

Greg
Except that you'd need to upgrade to a G90 or EH9500LC. Your XG1352LC won't display 1080P on a widescreen. You'll get scan line overlap. The beam spot size is too large. Don't take that the wrong way. I'm not putting the XG LC down. I have a 1352 myself. One of the best CRT projectors ever made in terms of overall performance. But it's sweet-spot is somewhere around 720P, not 1080P.
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post #29 of 206 Old 10-20-2004, 05:13 PM
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Quote:
Originally posted by mrigsby
Drew,

What you just said, what did it mean?
To allay movie company fears of piracy people selling pre-recorded movie playback devices (like DVD players) are contractually obligated to copy-protect the output (a DVD player must enable macro-vision on protected DVDs).

Assuming no change from historic practice at some point this will mean that all HD-DVD/DVHS digital outputs need to be encrypted (HDCP) and analog outputs can contain no more than about half the pixels of a 1280x720 source and a quarter of the detail from a 1920x1080p recording.

If you have the external DVI-D to VGA converter or player with analog outputs you'll only be able to display your HD sources on your CRT projector with a bit more sharpness and detail than PAL 16:9 enhanced DVDs.

If you have the input board from this thread, HDCP keys for it, and the licensing people agree it can't be used outside a projector you'll watch your movies with as much of their HD glory as your projector will resolve. I'd buy that for $200 or more.

With an HDCP key, the board, and implementation the HDCP license regards as having "analog outputs" because it's too easy to use outside a projector you'll be stuck with the reduced resolution and might as well use the player's free analog outputs.

With no HDCP keys the board will become worthless for pre-recorded HD material. You'll need to replace it with an outboard decoder.
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post #30 of 206 Old 10-20-2004, 06:29 PM
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Drew, isnt that unless you use a HTPC with DVI out.

I didnt think the HDCP keys where required to work on a PC video card ??

Can someone clear this up please. Cause if we can use a HTPC and send the DVI to the projector which has a DVI input card then its all good isnt it ??

Then we wont care about HDCP compliance or not !

Graham
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