[BRLTTY] Braille Display Barrier (was: Re: Braille keyboard layout)

[Jason White]

On Mon, Jun 18, 2007 at 12:09:19AM +0200, Boris wrote:
> Papenmeier's Easy Bar is the most efficient navigation mechanism I
> have ever used on a Braille display.  With the thumbs, one pushes the
> bar in a vertical plane while the indexes keep on reading.  

I was given a demonstration of this at the CSUN conference when I visited the
U.S., and I agree that it's a very innovative feature. That demonstration was
on a Papenmeier Braillex Elba, running Linux.

My Baum INKA has optical sensors, rather than routing buttons, above each
cell. One means of navigation that could be programmed in its original DOS
software was to assign the "next window" command to the last ten optical
sensors on the line, and the "previous window" command to the first ten
sensors. All the user had to do was to touch a sensor quickly after finishing
the line, which did not involve moving one's hands away from the display area.
It was quite efficient. The problem with the optical sensors is that
unintentional activations are possible when reaching over the display to type
on a keyboard behind it, for example.