I'm fairly certain the basic UART protocols are long since public domain, but FTDI's specific implementation of it in their chip may be protected by copyright or patent; I haven't looked into the details.
https://en.wikipedia.org/wiki/Universal_asynchronous_receiver/transmitter Invented by Gordon Bell, then of DEC, for the PDP-1. Interesting backstory. On Thu, Feb 4, 2016 at 11:49 AM, AndyHC <[email protected]> wrote: > UART - seriously - can uart chip technology still be under patent? > Something seriously wrong with the patent (and copyright) systems. > [excessive quoting removed by server] _______________________________________________ Post Messages to: [email protected] Subscription Maintenance: http://mail.leafe.com/mailman/listinfo/profox OT-free version of this list: http://mail.leafe.com/mailman/listinfo/profoxtech Searchable Archive: http://leafe.com/archives/search/profox This message: http://leafe.com/archives/byMID/profox/CACW6n4uEFbZgf4-yF+nSY=koympdsvc2ggemrftc4vtpine...@mail.gmail.com ** All postings, unless explicitly stated otherwise, are the opinions of the author, and do not constitute legal or medical advice. This statement is added to the messages for those lawyers who are too stupid to see the obvious.

