morse code input
o
e
|
-
t
|
oo
i
|
o-
a
|
-o
n
|
--
m
|
ooo
s
|
oo-
v
|
o-o
r
|
o--
w
|
-oo
d
|
-o-
k
|
--o
g
|
---
o
|
oooo
h
|
ooo-
v
|
oo-o
f
|
oo--
z
|
o-oo
l
|
o-o-
|
o--o
p
|
o---
j
|
-ooo
b
|
-oo-
x
|
-o-o
c
|
-o--
y
|
--oo
z
|
--o-
q
|
---o
|
----
|
and so on...
|
Explanation:
Morse code can be broken down naturally in a binary fashion as it consists
of two inputs, namely dots "o", and dashes "-". Selection proceeds
in a fashion akin to word completion except in this situation it is symbol
prediction. The user initially chooses between the left half of the table
and the right half of the table (i.e a dot or a dash). Having made that selection
they then choose the next input (i.e. dot or dash), and that half of the remaining
table is selected until they get to the symbol they want at which point final
selection is indicated (either by a third switch, or a delay etc.)
An attempt at showing how "k" is selected is shown using shades of blue.
Going from light blue to dark blue, with each shade the user is selecting
half of the remaining choices. Note all shades of blue were, at the
previous selection, a lighter shade.