Fujitsu takamizawa single hand keyboard for pilot

URLs
http://www.fujitsu.co.jp/hypertext/news/1996/Jun/ms_txt.html
http://www.fujitsu.co.jp/hypertext/ft/newinfo/sh-keys.html
http://www.fujitsu.co.jp/hypertext/news/1998/May/27-e.html

letters on the keyboard (silk print)

	P/N	G/T	C/R	Z/K	W/J	UpC
	A	E	H/I	S/O	Ar	Tc
	U/D	X/F	Y/M	V/L	Q/B	Sp

actual data bytes transmitted from the keyboard (9600bps N81XN)

	`	a	b	c	d	e
	f	g	h	i	j	k
	l	m	n	o	p	q

Fujitsu takamizawa software:
Ambiguity will be resolved by software, using dictionary or other
database.  For example
1. "HELLO" should be typed as "H/I E V/L V/L S/O"
2. there are 16 possibilities, that are:
	HEVVS HEVVO HEVLS HEVLO HELVS HELVO HELLS HELLO
	IEVVS IEVVO IEVLS IEVLO IELVS IELVO IELLS IELLO
3. From the dictionary possible choice can be narrowed to "hello".
   Note that "hell" is uncountable :-p

Problem with the Fujitsu method:
- learning curve.
- dictionary tend to be big for PDA device (especially if you have only 2M).
- how to disambiguate words that are not on the dictionary?

Possible usage proposal:
- use as number keypad.  (fairly simple)
- use as half qwerty (there are many possible mappings, for
  mirrored/non-mirrored and right/left-hand oriented):
	q/y	w/u	e/i	r/o	t/p
	a/h	s/j	d/k	f/l	g/*
	z/n	x/m	c/*	v/*	b/*
- use as phone-pad-like encoding input device, like:
	space	abc	def	*	*	*
	ghi	jkl	mnp	*	*	*
	prq	tuv	wxy	qz	*	*
- special keypad design for Japanese roma-ji input (to be used with two thumbs)
  Japanese roma-ji is usually ordered like "HiRaGaNa", i.e. consonant, vowel,
  consonant, vowel..., so it is good to separate "vowel side" and "consonant
  side".
	a	o	n	k	s	t
	e	u	space	n	h	m
	i	*	*	y	r	w
- use as game pad :-P
	*	up	*	*	up	*
	left	*	right	left	*	right
	*	down	*	*	down	*
- twiddler-like (two-keys-at-once)... is hard to implement as the keyboard
  does not send make/break signal.