[optacon-l] For anyone familiar with the optacons research and design and the psychometric research on the firing of pins and their order
- From: "C. Pond" <cpond@xxxxxxxxx>
- To: <optacon-l@xxxxxxxxxxxxx>
- Date: Sat, 12 Apr 2014 17:59:59 -0400
For anyone familiar with the optacons research and design and the psychometric
research:
Asside from the convenience of design of the driver circuitry both in the
optatons board and on the display driver chips, are their other reasons why the
pins are fired alternately: odd, even?
Would all pins per tactile image being fired simultaneously more quickly
fatigue the finger?
Are the images from the vibrotactile display more clearly comprehended by using
alternately firing pins?
If the tactile image is best interpreted by firing alternate pins, then what is
the best firing order?
I ask this question because of the challenge of one magnetic field from an
experimental actuator interfering with another in a matrix. At least four ways
are being consider to eliminate possible magnetic cross-talk between magnetic
actuators in a tactile display matrix setup without degrading the tactile
image. One of these several approaches is to not fire all pins for a given
image simultaneously, or even odd/ even as with our present optaconers, but
rather fire the pins rapidly from 1 through 3. AS a corollary to this,
actuators which are not used at a given moment might be pulsed with a suitable
waveform to counter or cancel unwanted magnetic interference from nearby
actuators. Some fancy signal processing must be employed here, but so be it;
completely doable.
Plastic bristles feels gentle on the finger, and one can extend their reading
time by using these plastic bristles, rather than sharp metal wires. The wires
excite the pain recepters in several layers of the finger so wonderfully made
by God, whatever else good they do.
Thank you for any answers and insights,
Charles
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- » [optacon-l] For anyone familiar with the optacons research and design and the psychometric research on the firing of pins and their order - C. Pond
