Re: How does digital TV broadcast prevent ghosting effects?



In article <fi4tln$pao$1@xxxxxxxx>,
Jan Panteltje <pNaonStpealmtje@xxxxxxxxx> wrote:
I have heard that US did chose 8VSB because Europe had an other system,
and 8VSB would help US industry, as Europe then had the same hurdles to
market as the US.

No, they picked 8VSB (for over the air, and a different modulation for
cable) because at that time COFDM wasn't developed enough. The US
standard was defined before the European one. This stuff has been
waiting around for ages, (15 years?), and not really going anywhere.

They made it very complex with something like 13 different screen size and
frame rate combinations and the requirement to deal with incoming 1080i
with reformatting for smaller displays for decoders. That's made the
decoders too expensive and made them wait for "Moore's Law" to catch up.
Add that it's not a worldwide market so the volume is lower.

They took so long that there's no US receiver industry left to protect.
And Direct Broadcast Satellite and Cable and the Internet has left the
decentralized broadcast industry with a declining market.

Mark Zenier mzenier@xxxxxxxxxx
Googleproofaddress(account:mzenier provider:eskimo domain:com)

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