[opendtv] Re: PBS National Datacast

[Bert] ... although I seriously dount that PBS thinks Dotcast provides
better coverage than ATSC can.

[KH]  They don't think that, they know that from a couple years of
empirical testing.

PS.  The Mouse didn't throw more money at it, other companies did; so
they must have had a reason (Kon).  Were they broadcast companies?

Kilroy Hughes
Sr. Media Architect
Digital Media Interoperability Team
Microsoft Corporation


-----Original Message-----
From: opendtv-bounce@xxxxxxxxxxxxx [mailto:opendtv-bounce@xxxxxxxxxxxxx]
On Behalf Of Albert Manfredi
Sent: Saturday, February 25, 2006 11:50 AM
To: opendtv@xxxxxxxxxxxxx
Subject: [opendtv] Re: PBS National Datacast

Richard Hollandsworth wrote:

>Excuse me if I've been a llittle confused.  The below cited
>Moviebeam press release via Webwire says that Moviebeam
>is using National Datacasting technology.  And the National
>Datacasting website says that they employ PBS's DTV
>stations, with no mention of the older dotcast technology
>on NTSC PBS stations.

Not quite accurate, on that last point, Richard.

http://www.pbs.org/digitaltv/dataNS.html

talks about "current services" and "the digital difference," in which=20
service over DTT "will begin" at some unspecified time. And "current=20
services" are obviously over analog, although only the VBI technique is=20
mentioned. So National Datacasting is somewhat agnostic about the
physical=20
layer details.

I think it's basically what John Shutt "stands by," although I seriously

dount that PBS thinks Dotcast provides better coverage than ATSC can.

Bert
 
 
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