Lenz Equipment

Although one of the founders and inventors of DCC, not used a lot in the US.

Their G scale line is almost nonexistant and their claim to fame seemed to be the SUSI interface to allow the addition of a sound decoder, and that was a short-lived benefit, since a single board motor and sound decoder is better in virtually every way.

The latest distinguishing characteristic is the ability to pick up signal in noisy environments, it uses a "capacitive" coupling to the signal, and the demo is putting tape on a rail for 6 inches.

Again, this is from the old difficulty with the microprocessor resetting, and modern decoders have enough keep-alive capability that this is really a novelty not a distinct advantage.

http://www.freepatentsonline.com/7198235.html

http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=7198235.PN.&OS=PN/7198235&RS=PN/7198235