a new keyboard - discuss and critique

Wed Jun 3 15:43:42 CEST 2009

On Wed, Jun 3, 2009 at 2:56 PM, Marcel <tanuva at googlemail.com> wrote:

> But dict mode is useless for me if I want to write in german, and I didn't
> bother to find a german dict yet because they mostly don't contain slang
> anyway. This hold-until-magnifier-pops-up thing isn't too helpful because
> it takes ages to type something up with that. Hitting a key twice because
> the first hit wasn't exact is faster.^

I wasn't talking about the big magnifier, just the small in top of the
finger.
let
pi the probability you miss a key with illume keyboard,
pt the probability you miss a key with triangle keyboard,
ki the time to press a key with illume,
kt the time to press a key with triangle,
ei the time to cancel an error with illume,
et the time to cancel an error with triangle.

et = 0 and ei = ki

the average time to type the correct key is: t(p, k, e) = k + Sum (i = [1,
+inf], (k+e)*pi^i)
ti = t(pi, ki, ei)
tt = t(pt, kt, 0)

et = 0 and ei = ki

the remaining maths are left as an exercise for the reader (I'm at work now
and I don't remember how to do that) :p

--
> Marcel
>
> Am Mittwoch, 3. Juni 2009 14:14:40 schrieb Mathieu Rochette:
> > On Wed, Jun 3, 2009 at 2:07 PM, Marcel <tanuva at googlemail.com> wrote:
> > > I simply want to try that design before sending it to hell, maybe it
> > > just works fine... I agree with people who said this before: Hitting
> > > actually dead space is less painful than hitting the wrong key and
> > > having to backspace/stroke-left all the time, maybe even accidentally
> > > pressing other keys while doing that.
> >
> > with illume keyboard, if you use the dictionary mode, pressing another
> > key is not that annoying.
> > it is for other mode but the preview key (the key gone up when you
> > press it) give you good feedback about which key your in and you can
> > move your finger to correct if needed.
> > unless his keyboard print the key on finger press (instead of finger
> > up), you can not see if you hit a dead space or a key and so you can't
> > move your finger to correct it, you have to make another try.
> >
> > > --
> > > Marcel
> > >
> > > Am Mittwoch, 3. Juni 2009 13:53:46 schrieb Yorick Moko:
> > > > i'm still undecided...
> > > > although i agree it is far more annoying to hit the wrong key
> > > > instead of no key
> > > >
> > > > On Wed, Jun 3, 2009 at 1:45 PM, Joseph Reeves
> > > > <iknowjoseph at gmail.com>
> > >
> > > wrote:
> > > > >> There is lots of space wasted. Why hasn't he put the key lines
> > > > >> together inverted to each other?
> > > > >
> > > > > I think the fact that it's not like you describe the whole idea
> > > > > of the design ;)
> > > > >
> > > > > Go to the page on El Reg and try and type your name by pushing
> > > > > your monitor. It's stupid, yes, but it gives you an idea of how
> > > > > it would work. It seems, without any feedback, to be very nice.
> > > > > The fact that all the triangles are orientated the same way means
> > > > > you get a huge area of triangular free space around each key,
> > > > > that lets you mash at them without accidentally hitting another.
> > > > >
> > > > > I don't think it's about training your hands as others have said,
> > > > > it's about providing a key with a lot of free space around it -
> > > > > effectively you've made the key bigger (because you can hit any
> > > > > are around it and "sort of" hit the right one without mis-hitting
> > > > > another) whilst keeping the overall size very small.
> > > > >
> > > > > Its genius is its simplicity.
> > > > >
> > > > > Joseph
> > > > >
> > > > > 2009/6/3 neovento at freerunner <spaaam at ymail.com>:
> > > > >> There is lots of space wasted. Why hasn't he put the key lines
> > > > >> together inverted to each other?
> > > > >>
> > > > >> Risto H. Kurppa wrote:
> > > > >>> On Wed, Jun 3, 2009 at 8:27 AM, Robin Paulson
> > > > >>> <robin.paulson at gmail.com>
> > > > >>>
> > > > >>> wrote:
> > > > >>>> apparently, triangular buttons produce less errors.
> > > > >>>>
> > > > >>>> http://www.reghardware.co.uk/2009/06/02/crocodile_keyboard/
> > > > >>>>
> > > > >>>> i'm not totally convinced, but it would be worth a go, i think
> > > > >>>>
> > > > >>>> now, is it possible to coerce raster's keyboard into using
> > > > >>>> anything other than square keys?
> > > > >>>
> > > > >>> Looks interesting!
> > > > >>>
> > > > >>>
> > > > >>> r
> > > > >>>
> > > > >>> --
> > > > >>>
> > > > >>> | risto h. kurppa
> > > > >>> | risto at kurppa dot fi
> > > > >>> | http://risto.kurppa.fi
> > > > >>>
> > > > >>> _______________________________________________
> > > > >>> Openmoko community mailing list
> > > > >>> community at lists.openmoko.org
> > > > >>> http://lists.openmoko.org/mailman/listinfo/community
> > > > >>
> > > > >> --
> > > > >> View this message in context:
> > > > >> http://n2.nabble.com/a-new-keyboard---discuss-and-critique-tp301
> > > > >>6473 p3016823.html Sent from the Openmoko Community mailing list
> > > > >> archive at Nabble.com.
> > > > >>
> > > > >>
> > > > >> _______________________________________________
> > > > >> Openmoko community mailing list
> > > > >> community at lists.openmoko.org
> > > > >> http://lists.openmoko.org/mailman/listinfo/community
> > > > >
> > > > > _______________________________________________
> > > > > Openmoko community mailing list
> > > > > community at lists.openmoko.org
> > > > > http://lists.openmoko.org/mailman/listinfo/community
> > > >
> > > > _______________________________________________
> > > > Openmoko community mailing list
> > > > community at lists.openmoko.org
> > > > http://lists.openmoko.org/mailman/listinfo/community
> > >
> > > _______________________________________________
> > > Openmoko community mailing list
> > > community at lists.openmoko.org
> > > http://lists.openmoko.org/mailman/listinfo/community
>
>
>
> _______________________________________________
> Openmoko community mailing list
> community at lists.openmoko.org
> http://lists.openmoko.org/mailman/listinfo/community
>

-- 
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.openmoko.org/pipermail/community/attachments/20090603/5d92776f/attachment.htm 