[opendtv] Re: Mediaflo Technology

  • From: Mark Aitken <maitken@xxxxxxxxxx>
  • To: opendtv@xxxxxxxxxxxxx
  • Date: Thu, 09 Nov 2006 11:02:00 -0500

In-line response.

Craig Birkmaier wrote:
14 live streaming national interest
5 live streaming local interest

50 national and 15 local services that will deliver ~20 minutes of content per day to receiver cache.
What does local mean?
Really? The effective resolution of NTSC is 320 x 240 at 60 fields per second. With good de-interlacing, I would suggest that these streams will come close to equaling NTSC quality, however, that is irrelevant since we are talking about displays in handsets. Apple started the iTunes video service at this resolution, and the stuff looks fine when output to an interlaced TV. But the LPTV guys could deliver something like 640 x 480 @ 60P which would be significantly higher quality than NTSC, perhaps with a 320 x 240 base layer.
NTSC is 'effectively' 320 x 240? Really?

This argument must be tempered with reality. People are consuming vast amounts of video content via the Internet, most of which is less than NTSC quality. It is all driven by applications and competition. Mobile Tv does not need to equal the family room viewing experience.
Very true...
Regards
Craig
Similarly...

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