Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cmcl2!lab!dimitrov
From: dimitrov@lab.ultra.nyu.edu (Isaac Dimitrovsky)
Newsgroups: sci.electronics
Subject: Re: HDTV and aspect ratio
Message-ID: <1991Apr23.153459.10815@cmcl2.nyu.edu>
Date: 23 Apr 91 15:34:59 GMT
References: <16642@chaph.usc.edu> <2193@gold.gvg.tek.com>
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In article <2193@gold.gvg.tek.com> grege@gold.gvg.tek.com (Greg Ebert) writes:
>I saw some HDTV demonstrations at NAB this week, and they are visually
>impressive. Although there were demos by NHK (Japan), General Instruments,
>ATT/Zenith, and David Sarnoff Labs, I only had enough time to inspect the
>system by ATT/Zenith in great detail.

Another pretty impressive demo was given by Scientific Atlanta (they
were giving it in a room at the Sands). They showed a digitally encoded
and decoded signal at 5 Mbits/second and 8 Mbits/second for a normal
TV signal, which looked very nice, as well as a HDTV transmission
system which I didn't pay as much attention to. One thing I remember
was that they don't use interframe compression (in fact, every encoded
frame was the same size). To demonstrate this all of their demo footage
included violent motion to such an extent that I felt vaguely seasick
afterwards.

Isaac Dimitrovsky