Author: Robert Hyatt
Date: 14:20:47 03/02/98
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On March 02, 1998 at 16:53:54, David Fotland wrote: >On February 24, 1998 at 14:51:25, Robert Hyatt wrote: > >>On February 24, 1998 at 12:21:58, Steven Schwartz wrote: >> >>>On February 24, 1998 at 12:07:18, Bert Seifriz wrote: >>> > >> >> >>Of course this is only about 13 years after the technology was >>displayed by Ken Thompson in Washington DC, 1978, at the ACM event >>that year. :) >> >>It's a shame no one took up the gauntlet and challenged the patent >>based on widely-known prior work by Ken. > >Do you know that this patent uses the same technique as Ken did? >The patent describes a scheme with two set of parallel wires, orthogonal >to each other, and not touching, multiple frequencies on the wires, and >resonators in the pieces. > >Anyone who wants to read the patent can look it up at the IBM patent >site, http://patent.womplex.ibm.com/ > that is *exactly* what Ken did. He even talked of doing this using a standard "roll-up" vinyl board because it would be so easy to stick the "antennas" on the back... >Just do a search for the patent number (5129654). I found it with a >search for the inventor's last name, but searching by number is faster. > >He didn't patent the idea of a game board that detects pieces. He >patented >a specific method of detecting pieces. > >David Fotland
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