3 Mar
2017
3 Mar
'17
3:03 p.m.
On Fri, Mar 03, 2017 at 03:11:21PM -0700, ben via cctalk wrote:
Use a TELEPHONE keypad 0-7 OCTAL 8 and 9 binary. :)
I like it! Or else make them dit and dah (like on a Morse keyer) so you
can have alphanumeric entry? Eons ago a friend of mine wanted to design
an audio protocol (e.g. using a Votrax SC-01 and an ADC), figuring that the
word "ZERO!" has a lot more of a high-frequency component so it wouldn't
take much processing (this was in 8-bit days) to distinguish it from "ONE!".
The snag was that he wanted to add "WHAT?" as an error-correction feature.
John Wilson
D Bit