This is because Gray codes are named after Frank Gray, who patented their use for shaft encoders in 1953. You can find a really Interesting Paper on this at www.faqs.org. One way to avoid this problem ...

So, that answers the first portion of my ponderable, but what about the second part, in which I said: “If it is possible to achieve a ternary Gray code, can we map binary values onto the ternary ...