[opendtv] Re: BBC Demonstrates HDTV Broadcasts over SD Channels
- From: "John Willkie" <JohnWillkie@xxxxxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Tue, 21 Jun 2005 11:19:58 -0700
Uh, tom, just how will those affordable 1080p pictures be delivered to
people? In other words, what type of transport streams?
Are you familiar with the fact that 1080p uses more samples per second than
is permitted by MPEG-2 transport streams? (that being just under 63 MM
samples per second)
Could you point me to the affordable transport streams that will handle this
format?
John Willkie
----- Original Message -----
From: "Tom Barry" <trbarry@xxxxxxxxxxx>
To: <opendtv@xxxxxxxxxxxxx>
Sent: Tuesday, June 21, 2005 4:33 AM
Subject: [opendtv] Re: BBC Demonstrates HDTV Broadcasts over SD Channels
> At a viewing distance below about 2 screen widths some people
> might want to consider 1080p as it becomes affordable. And at a
> viewing distance above 3 screen widths 480p might be enough for many.
>
> But 720p is probably just perfect in between. ;-)
>
> - Tom
>
>
> Craig Birkmaier wrote:
>
> > At 12:27 PM -0400 6/20/05, John Golitsis wrote:
> >
> >>Now isn't that just so very conclusive! ;)
> >>
> >>On 20-Jun-05, at 8:57 AM, Craig Birkmaier wrote:
> >>
> >>
> >>> For larger screens, up to 50", 720p with 1,280 pixels per
> >>
> >> > line was considered ideal.
> >>
> >
> >
> > I don't know about conclusive, but "logical" comes to mind.
> >
> > At least the Europeans have had the benefit of learning from our
> > experience with HDTV...
> >
> > Then again, they had experience with interlaced HDTV before we even
> > had a digital HD standard in the U.S. As I remember they found
> > 1250/50i to be less than optimal, so they killed it.
> >
> > Regards
> > Craig
> >
> >
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