daemon@rutgers.UUCP (03/31/87)
From: Mike (My watch has windows) Meyer <mwm%violet.Berkeley.EDU@BERKELEY.EDU> The following looks like a nice way for the next generation Amiga to get both lots of pixels, and stay compatable with TV sets. Maybe going with NTSC didn't loose so bad after all. Just have to wait and see. <mike ------- Forwarded Message From: ames!uwvax!harvard!wanginst!infinet!rhorn@bu-cs.bu.edu (Rob Horn) To: info-futures@bu-cs.bu.edu Date: Mon, 30 Mar 87 12:51:24 EST Subject: HD-NTSC (A HDTV Proposal) In IEEE Trans. Consumer Elec., Feb 87, there is a Proposal for a New High Definition NTSC Protocol. This is a variant on the HDTV theme, and unlike the earlier proposals, this one looks like it might make it. Assuming that it does, it will have an impact on display technology. The proposal would use approximately 60Hz 828x1320 displays in a 14x9 landscape format. This makes the pixels rectangular rather than square. If this proposal is accepted, displays like this will become very cheap as they benefit from the efficiencies of consumer manufacturing. The article is worth reading as an example of data compression, human factors analysis, and concern for the needs of the current NTSC TV owners, broadcasters, and film makers. This kind of upgrade involves many of the same basic tradeoffs that go into the decision on how to upgrade a CPU architecture when there is a significant installed base. I think that this proposal might make it with only minor modifications. The main reason that I expect it to suceed is that this proposal is the first that I have seen that is totally upward compatable from the North American NTSC. This avoids the multi-billion dollar problem of changing FCC licenses and frequency allocations. It lets stations upgrade without losing their old audience. It may even preserve existing VCR technology so that HD-NTSC movies could use existing VCR's on HD-NTSC receivers. All of these had presented insurmountable obstacles to the previous HDTV proposals. The major remaining problems are a motion smear problem, the requirement for much cleaner analog electronics, and the fact that NTSC compatability only solves problems in the Japanese and North American markets. Rob Horn UUCP: ...{decvax, seismo!harvard}!wanginst!infinet!rhorn Snail: Infinet, 40 High St., North Andover, MA ------- End of Forwarded Message