[opendtv] Re: Patent application on 8-VSB equalizer
From: Doug McDonald <mcdonald@xxxxxxxxxxxx>
To: opendtv@xxxxxxxxxxxxx
Date: Fri, 07 Jul 2006 12:52:55 -0500
John Shutt wrote:
> Al,
>
> Since the patent was issued six years ago, can I assume that no product has
> been made thus far using this technique? Is the theory much easier than the
> practice?
>
> I've always wondered how you can use the data segment sync bits to estimate
> multipath
cross-correlation with the known pattern. It takes LOTS of
signal averaging to get a respectable S/N, however. This
works because only the sync bits and the training sequence
is constant.
Doug McDonald
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