[net.cog-eng] One-hand

jel@digi-g.UUCP (John Lind) (02/01/84)

I am looking for information about one-handed keyboards of the type
called chording keyboards where information is enoded by simultaneous
depression of a combination of keyswitches.  I remember an article
some number of years ago on a unit called a "write-hander" but have
been unable to dig up anything after extensive searches through
exhaustive indices.

I am also interested in the use of such keyboard by either hand by
providing a thumb strobe on each side of the finger switches.  In
such a configuration, is it necesary to reverse the order of the
finger switches, or leave them the same for both hands?

Tnx  -- John Lind
	DigiGraphic Systems Corporation, Minnetonka MN

phipps@fortune.UUCP (Clay Phipps) (02/18/84)

I have in front of me the following paper:

  [Rochester &al. 78b]
  Nathaniel Rochester, Frank C. Bequaert, Elmer M. Sharp:
  "The Chord Keyboard",
  IEEE *Computer*, vol. 11, num. 12, December 1978, p. 57 .. 63.

This paper contains a bibliography with the following citations
(among others):

  [Rochester &al. 78a]
  N. Rochester, F. C. Bequaert, E. M. Sharp:
  "Chord Keyboard Architecture",
  IBM Poughkeepsie Laboratory Tech. Report, (to be issued);
  available from the authors at
  IBM Cambridge Scientific Center, 
  545 Technology Square, Cambridge, MA 02139.

  [Bequaert & Rochester 78a]
  F. C. Bequaert, N. Rochester:
  "One-handed Keyboard and Its Control Means",
  US Patent 4,042,777, issued Aug 16, 1977.

  [Bequaert & Rochester 78b]
  F. C. Bequaert, N. Rochester:
  "Teaching Typing on a Chord Keyboard",
  IBM Poughkeepsie Laboratory Tech. Report TR 00.2918, Dec. 26, 1977;
  available from the authors at
  IBM Cambridge Scientific Center, 
  545 Technology Square, Cambridge, MA 02139.

  [Lockhead & Klemmer 59]
  G. R. Lockhead, E. T. Klemmer:
  "An Evaluation of an 8-key Word-Writing Typewriter",
  IBM Research Report RC-160, Nov. 1959,
  IBM T. J. Watson Research Center, Yorktown Heights, NY.

All you wanted to know but were afraid to cite ?
At least a few years ago, IBM tech reports were free for the asking
(phone call or short note).

-- Clay Phipps

-- 
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   !fortune!phipps