No, this wasn't a notetaker. It was a USB keyboard-- just the keyboard interface for a computer, but it was setup like a Braille keyboard only-- no qwerty functions.
Sent from my iPhone > On Apr 12, 2014, at 9:58 AM, Mario Brusco <[email protected]> wrote: > > might you be talking about the braille edge? > ----- Original Message ----- > From: "Richard Holloway" <[email protected]> > To: "The Jaws for Windows support list." <[email protected]> > Sent: Saturday, April 12, 2014 9:20 AM > Subject: Re: Braille keyboard question. e > > > The problem is more complicated than it may seem at first. There is a > problem (prat least a potential limit) referred to as "n-key rollover". When > you exceed the key limit, which varies from one keyboard to the next, > unpredictable things may happen. The computer may no longer see the first > keys pressed, with only the last particular (keyboard specific number of) > keys recognized. I have read the limit can be as low as three. (You don’t > typically chord keys at the EXACT same time, there are tiny differences in > when the contacts are made.) > > The result is that only the last 3 (or 4, etc.) keys down will be seen. And > there is a second problem called “ghosting” (nothing to do with ghosting > braille on a Perkins). On some keyboards, extra “ghosted” keystrokes appear > to the computer depending on the physical position of the keys you actually > push— it has to do with the wiring matrix of the keyboard. These are extra > keys you didn’t actually push. > > As to why this is an issue? Partly cost, but also lack of planning for > unusual applications of the hardware. It costs more to design keyboards that > can handle more keys at once, and the need is rare for qwerty typists. You > may see a need like ctrl + alt + delete often, but usually no more than > three keys are needed at once. The common exceptions are Braille > (obviously), musical applications (like playing a musical instrument, for > example, without a conventional MIDI trigger instrument available), and > certain types of computer gaming. > > So the short answer is, even if you have software to solve your problem, > your hardware setup may or may not accept the physical input from the > keyboard. This will vary from one keyboard to the next, and so forth. > Try-before-you-buy, if possible. > > Read more about limitations here: > http://xahlee.info/comp/keyboard_key_ghosting.html > > I did see a braille-style USB keyboard a while back— not like a Focus 40 (or > such) with a built-in display. It was just a straight row of keys to use > like on a braille notetaker but without a display. This setup had no n-key > rollover issue, but I’ll be darned if I can find it now with a web search. > If I run across it, I will post. > > Good luck! > > >> On Apr 11, 2014, at 7:50 PM, Sharon <[email protected]> wrote: >> >> Doesn't Duxbury allow that? >> It's been a long long time since I've used it. >> Sharon >> >> >> -----Original Message----- >> From: Jfw [mailto:[email protected]] On Behalf Of Justin >> McDevitt >> Sent: Friday, April 11, 2014 3:47 PM >> To: [email protected] >> Subject: Braille keyboard question. e >> >> Hello to all list members: >> >> >> >> I am a long-time braille reader and a proficient braille writer since >> grade >> school. >> >> >> >> As an alternative to the BrailleNote and the other note takers, which I >> cannot afford to purchase right now, as a long-time braille writer, is >> there >> a braille keyboard that I can purchase and connect to a laptop, using JAWS >> and a braille translation program like Duxbury that I can use as an >> alternative to the higher dollar braille note taking devices? >> >> I know that I could buy a portable braille display which I believe has a >> built-in keyboard, but again this would no doubt cost a couple of thousand >> dollars. >> >> >> >> On the other hand, is there a program that can convert specific keys on a >> regular keyboard to the configuration of a braille keyboard which I could >> connect to a laptop, for note taking? >> >> >> >> I would appreciate any and all input. >> >> >> >> Best regards, >> >> >> >> Justin >> >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: >> <http://lists.the-jdh.com/pipermail/jfw_lists.the-jdh.com/attachments/201404 >> 11/20248527/attachment.html> >> _______________________________________________ >> Jfw mailing list >> [email protected] >> http://lists.the-jdh.com/mailman/listinfo/jfw_lists.the-jdh.com >> >> >> _______________________________________________ >> Jfw mailing list >> [email protected] >> http://lists.the-jdh.com/mailman/listinfo/jfw_lists.the-jdh.com > > > _______________________________________________ > Jfw mailing list > [email protected] > http://lists.the-jdh.com/mailman/listinfo/jfw_lists.the-jdh.com > > > _______________________________________________ > Jfw mailing list > [email protected] > http://lists.the-jdh.com/mailman/listinfo/jfw_lists.the-jdh.com _______________________________________________ Jfw mailing list [email protected] http://lists.the-jdh.com/mailman/listinfo/jfw_lists.the-jdh.com
