[opendtv] Oldest claim to have solved multipath

On a lazy Sunday afternoon I've taken up a crusade to collect old press 
releases from Zenith and others of how they have solved the multipath 
problems.

The oldest Zenith claim I've found so far is from Electronics Weekly 
back in April 1997, see  <http://www.electronicsweekly.com/Article7552.htm>

Can anyone provide others?

- Tom

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Friday 4 April 1997

Zenith claims first with ICs for US HDTV system
Simon Parry
Zenith Electronics claims it has developed the industry's first ICs for 
the digital HDTV terrestrial broadcast transmission system adopted by 
the Federal Communications Commission (FCC).
The two ICs will demodulate the digital television signal transmitted by 
broadcasters. Zenith invented the FCC approved VSB (vestigial sideband) 
digital transmission technology at the heart of the ATSC DTV standard. 
The chips are expected to be available later this year.
Laboratory testing of first-generation chips shows compatibility with 
the FCC-adopted VSB transmission system, according to Paul Snopko, 
Zenith's R&D director.
The VSB chip-set, manufactured by LG Semicon, includes two Asics, one 
for synchronisation and equalisation and one for channel decoding. The 
sync/equaliser chip locks the receiver to the VSB signal and removes 
NTSC co-channel interference and multipath distortion (ghosts) from the 
received signal. The channel decoder chip corrects errors in the 
received signal using Reed-Solomon and trellis coding error correction 
methods.
 
 
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