[opendtv] Re: Technology years
- From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Fri, 19 Jan 2007 15:45:38 -0500
Craig Birkmaier wrote:
> And this is critical to the discussion.
>
> With 8-VSB, broadcasters are locked into their current
> business model. The only change is that they can to a
> limited extent try multicasting, however, there are virtually
> no receivers to multicast to. With COFDM they could have
> launched new services with receivers that actually worked.
I agree with the general premise that broadcasters need flexibility, but
I don't believe anymore that it is 8-VSB's lack of flexibility that is
causing the DTT stagnation in the US.
One simple example: A-VSB is absolutely NO MORE of a kludge than is
DVB-H. It is also NO MORE of a kludge than is HM mode in COFDM. From the
technical aspects of it, it is the same sort of solution done in a
somewhat different way, with its own very distinct advantages (e.g. the
robust channels can be varied in capacity to a much greater degree than
HM).
The fact that improved 4th/5th gen hardware mysteriously fails to become
widely available and the fact that E-VSB or A-VSB may equally fail to
appear in widespread use are all symptoms of the same disease.
The same disease that would keep any COFDM innovation away from FOTA DTT
in the US.
Bert
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