Something a knowledgeable third party referred to. No engineering difficulty with A-VSB and PSIP, just a wording issue.
TTFN, Mark John Willkie wrote:
Mark; Are you alluding to the A-VSB proposal requiring all packets (including those with PSIP) having adaptation fields? John Willkie----- Original Message ----- From: "Mark Schubin" <tvmark@xxxxxxxxxxxxx>To: <opendtv@xxxxxxxxxxxxx> Sent: Friday, April 20, 2007 2:15 PM Subject: [opendtv] Re: LG launches 6th gen ATSC digital TV broadcast receiver chipsetManfredi, Albert E wrote:Mark Schubin wrote:Hype is hype, even if the product being hyped is actually good.There's a difference between hype and FUD. The FUD a few short years ago was that if a "tuner mandate" was to be established, the result would be that CE manufacturers would incorporatethe cheapest possible, poor performing receivers just to meet the mandate.What makes you think they haven't? LG engineers brought a "5th-generation" prototype STB to my apartment in mid-2004. It successfully received all DTT channels reliably via a set-top antenna. No receiver that has been brought to my apartment since then has been able to do so.If performance can be improved while reducing the cost of the final product, that's obviously the road the manufactuers will take.And, if the cost of the product can be reduced still further by reducing quality, that's another road manufacturers often take. Those who've shot HDTV for a long time say the highest picture quality was with the 1-inch-format Sony HDC-500 and Canon HV12x12 lens. HDTV cameras and lenses have gotten smaller, lighter, and less expensive with 2/3-inch models, but they haven't gotten higher in quality; instead, they've gone lower (and lower still with 1/2-inch and 1/3-inch models). As for hype and FUD being different, perhaps you're right; I just noticed both being exuded in the service of MPH at NAB in Las Vegas, where it was implied that A-VSB couldn't do a single-frequency network (they demonstrated it), had lower throughput (as demonstrated at NAB, it had higher), and couldn't handle PSIP (as a result of an easily changed phrase in the standard). TTFN, Mark----------------------------------------------------------------------You can UNSUBSCRIBE from the OpenDTV list in two ways:- Using the UNSUBSCRIBE command in your user configuration settings at FreeLists.org- By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word unsubscribe in the subject line.
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