Me too. They are just playing with the parity bit basically, so I suppose you could say it sort-of has been done before. Effectively they are switching between mark and space parity on the fly. Still, I agree it is pretty oddball.
Me too. They are just playing with the parity bit basically, so I suppose you could say it sort-of has been done before. Effectively they are switching between mark and space parity on the fly. Still, I agree it is pretty oddball.