[opendtv] Re: A detail in the history of video standards

Hi John.

> ATSC specifications can and do co-exist in the world.  ATSC 
> has taken much care to insure that their specifications do 
> not interfere with ARIB (Japan), SCTE (Cable) and an offshore 
> suite of specifications called MPEG.  To the maximum extent 
> possible, they have also insured that their use of Pids do 
> not trample over DVB-SI.  There is also extensive harmony 
> between the ATSC's descriptors and those of ARIB, SCTE and, 
> to some extent, DVB.

This I have to comment over. The original SI standard in ATSC was based
almost 100% on Motorola's Digicipher II system used on satellite. It
mandated a fixed program to PID relationship (not a bad idea IMHO) and
as a result, the PMT, video and audio streams for program 1 step right
on top of the DVB-SI Network, Service Definition and Time tables.

Doesn't sound like they thought about any networks other than DCII to
me...

Cheers,
Rod

 
 
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