----- HDTV Magazine Tips List -----
This raises an interesting question: WHY don't some 1080p displays
support 1080p input? Is it because the hdmi chipset they use dooesn't
support it, much like the earlier chipsets didn't support 5.1 digital
audio?
Jason Burroughs
-----Original Message-----
From: HDTV Magazine On Behalf
Of Dr Robert A Fowkes
Sent: Wednesday, September 14, 2005 9:01 AM
To: HDTV Magazine
Subject: Re: hdtvmagazine_tips Digest #1188 Sony Ruby Front Projector
----- HDTV Magazine Tips List -----
At 12:23 AM 9/14/2005 -0400, you wrote:
>Thanks for the information, Sony would be on a better competitive
>position bringing down their 1080p
>prices.
>
>Please provide a source to support your comment that the HDMI
>standard does not yet implement 1080p.
Hello Rodolfo,
Sorry we didn't link up at CEDIA. I was so busy (as I'm sure you
were) that this would have been difficult. Maybe next time.
As to HDMI not yet implementing 1080p in its current version (1.2 as
of 08/22/05) I was surprised to learn of this since I just assumed
that HDMI was supporting 1080p at the moment. When I went to Michael
Heiss' always interesting and sometimes enlightening "New
Technologies" presentation he was talking about the latest version of
the standard (1.2) which has added SACD audio to the mix. (1.1 added
DVD-A). He then threw out the comment that 1080p support "wouldn't
be implemented for another 16 or 24 months" and I was shocked to
learn this. I always assumed that 1080p is already part of the
implemented minimum standard and not something that is optional at
this point. So I went to my copy of the HDMI 1.2 standard and found
this in Section 6 (starting on page 67):
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------------------
(Note: I tried to cut and paste the appropriate section here but the
list will only accept plain text and kept spitting my reply back to me.)
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I don't see 1080p listed there anywhere. Of course I realize that
this is just the minimum video standard and it doesn't prevent
manufacturers from passing 1080p out through their HDMI outputs (or
accepting 1080p in through HDMI inputs). It's just not yet a
requirement so one can't just assume that if you connect equipment
via HDMI you always have the capability of giving or receiving
HDMI. One more thing to confuse the average consumer.
Naturally there are some manufacturers providing 1080p output via
HDMI. At CEDIA I saw that magnificent Classe CDP-300 DVD player that
outputs 1080p via its internal scaler (an eye-opener both visually
and performance wise for those with deep pockets at $6500). I'm also
going to be purchasing a DVDO iScanVP300 when it is released later in
the month. This versatile digital scaler/switcher outputs 1080p via
HDMI. And the list goes on.
In reading over my original message I now realize that when I stated
that "the HDMI standard doesn't yet implement it" I probably should
have said "the HDMI standard doesn't yet REQUIRE it" when talking
about 1080p. What I mean is that the vast majority of new 1080p sets
that I saw have HDMI digital inputs but that doesn't guarantee that
these inputs can accept 1080p. The signal can be sent over the wire,
of course, but if the set doesn't have the chip sets to handle 1080p
it doesn't mean a thing. The form doesn't guarantee the function, if
you know what I mean. Until there are a lot of native 1080p sources
out there I'm not too concerned about my 1080p set accepting native
1080p (I'm leaning toward a 50" SXRD SONY to replace my PRO-75 as I
mentioned in my previous post). Yes, I realize that this limits me
to the performance of SONY's internal scaler to create the 1080p
picture (which looked good to me) and doesn't give me the option of
using an external scaler to create the 1080p for pass-through to the
SXRD. But since technology never stands still, by the time that
1080p inputs are standard across the board there will be improvements
in other areas that might require an upgrade path. One never buys a
piece of equipment forever. I think that the fact that I got 15
years out of my Pioneer PRO-75 RPM very fortuitous, and my grandkids
(without critical eyes) will enjoy this 4:3 set for many years to
come. I'll focus my 1080p input device acquisition to my front
projector, but I have no problem waiting for some time since my
current projector (Runco CL-710) is doing just fine at 720p and 1080p
projectors will be way out of my price range for some time to come.
I hope this clears up some of my ambiguous comments.
Take care.
-- RAF
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