[net.micro] Head movements for cursor positioning

FISCHER@RUTGERS.ARPA (07/08/83)

From:  Ron <FISCHER@RUTGERS.ARPA>

This could be done in a rather straightforward manner, place a
slightly convex mirror on your forehead and an infrared projector on
the terminal that shines a wide beam in the shape of an "L".  Place IR
detectors along the top and right sides of the display.

I have an objection to this technique however.  Try moving your head
to "aim" at different points on the screen for a few minutes.  Imagine
doing this all day.  Would this characteristic motion persist?  Making
you look like a pigeon?

(ron)
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MDP@SU-SCORE.ARPA (07/11/83)

From:  Mike Peeler <MDP@SU-SCORE.ARPA>

Ron,

    I doubt that users of such a device would develop a tic
like that.  People with glass eyes are taught to look with
their whole head, but they do not look like pigeons.

					Cheers,
					Mike
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