[kwlug-disc] are you going to be a criminal?
jvj at golden.net
Mon Jun 7 00:02:22 EDT 2010
At 23:31 2010-06-06, Bob Jonkman wrote:
>Analoge video copy protection < .. snip ...> The audio is unaffected, tho.
The list has been kicking around DVDs, CDs, HDMI, etc. plus a
retrospective to VHS & NTSC (mea culpa).
I did a quick search on the thread and noted that broadcast HDTV had
not been mentioned.
I think that the discussion on DRM and copyrights will extend to
broadcast HDTV where, except for the RF modulation/demodulation
scheme, the content in the broadcast signal will be digital. Which
leaves open the potential for recording digital content without a
having the original content on any physical medium, e.g. DVD disc.
The scheduled switch over to broadcast HDTV may one of the
motivators of the legislation.
With NTSC, video including h & v sync are amplitude modulated and the
audio subcarriers (plural) are frequency modulated on the baseband
As an aside, and as far as I know, the existing broadcast system
especially the lower channels do not have the bandwidth required for
HDTV hence, after the switch over to HDTV, these frequencies will be
reallocated to other services.
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