[opendtv] Re: Patent application on 8-VSB equalizer

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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