23 May
2012
23 May
'12
2:18 p.m.
On Tue, 22 May 2012 19:31:10 +0100 (BST), ard at p850ug1.demon.co.uk (Tony
Duell) wrote:
I personally find it ridiculaor that people are
suggesting that something
like a paper tape reader, for which the mechanical parts could be made in
any model engineer's workshop and the electronics is a handful of parts
should be emulated by a scanner (many moe photodetectors than necessary
and a powerful processor to prewcess the images from said scanner. Please
stop trhwing silicon ant the problem!
Am I completely wrong if I think I remember
that the sprocket holes have
a fixed relationship to the data holes? If so, it ought to be possible
to build an optical decoder, illuminate it with a simple light bulb,
connect it to an input-capable parallel port on a computer with suitable
software, and simply pull the tape through by hand? The sprocket holes
would function as a clock for the data.
Agreed it is rather primitive, but for a one-off job of not too much
tape it could be less work than messing around with a scanner.
/Jonas