[optacon-l] Re: We need your help in tactile display design
- From: Jim Bliss <jamescbliss@xxxxxxxxx>
- To: optacon-l@xxxxxxxxxxxxx
- Date: Mon, 16 Aug 2010 13:15:57 -0700
Carolyn,
Thanks for your prompt response, but I don't understand your numbers. For
everyone's numbers to be consistent, think of the Intensity knob being a
scale from 1 to 10 with 1 being minimum intensity and 10 being maximum
intensity. So when you say you use your Optacon "intensity at about 1
o'clock", does that mean the minimum possible? Does your 6-7 mean around 5
on a scale that goes from 1 to 10? Want does 12 minus mean?
Jim
On Mon, Aug 16, 2010 at 12:47 PM, H & C Arnold <4carolyna@xxxxxxxxxxxxxx>wrote:
> Jim, I use my Optacon R1D with intensity usually at about 1 o'clock. If
> something is quite difficult, I'd say I go up to 2, rarely to the complete
> limits of the array. So, I guess you could say I operate at about 6-7, and
> that would be a nice level for me. I keep it in mind that it is possible to
> refine the array to the point that 6-7 might seem clearer than today's 7.
> Sometimes I can reduce it some, but I am not really adjusted to using it at
> a lower level than say 12 minus, or maybe 5-6. All in all, I would say my
> preference would be 6 to 7, and it would be hard to go lower than 5.
>
> I went over to my Optacnn, saw that the array was at about 1:30, moved down
> to 12:30 and read three different pieces of material. I wonder if intensity
> could be reduced, if the pins were slightly higher, as they appear under
> the
> finger, or would that be cost prohibitive?
>
> In God We Trust,
>
> Carolyn
> ----- Original Message -----
> From: "Jim Bliss" <jamescbliss@xxxxxxxxx>
> To: <optacon-l@xxxxxxxxxxxxx>
> Sent: Monday, August 16, 2010 3:25 PM
> Subject: [optacon-l] We need your help in tactile display design
>
>
> Optacon Users
> I am working with a group at Zone 24X7 and SRI that has a National Science
> Foundation (NSF) Small Business Innovation Research Grant (SBIR) to
> evaluate
> the feasibility of a totally different technology in tactile displays. We
> don't know to what extent this technology will be useful in a new Optacon,
> but if it is, it has the potential of greatly reducing the cost of the
> Optacon array. We are only at the beginning of this research and we would
> like your help in determining the range of tactile stimulator intensity
> needed.
>
> Imagine that the Optacon Intensity knob had a scale from 0 to 10, with 0
> being the current Optacon's minimum intensity and 10 being the maximum
> intensity. Now estimate where along this scale you like to read with the
> Optacon. If you set the knob half way between minimum and maximum, your
> answer would be 5, if you set the knob 80% of the way from minimum to
> maximum, your answer would be 8, and so on. Also it would be useful for us
> to know for each of you what level is too intense, and what the minimum
> usable level is.
>
> I would like to you to email your answer back to me to with these three
> numbers:
>
> Minimum useful intensity: ______
>
> The intensity you use most: ______
>
> Maximum useful intensity: ______.
>
> I hope to get 50 or more responses from this listserv. I'll report the
> results of this survey back to the listserv. Thanks for your help.
>
> Jim Bliss
>
>
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