Palmtop3 User’s Guide
Part # 400670-A
83
7.8. Configs - Ambiguous Keypads
The Palmtop software includes two configurations designed for text entry from a telephone-like keypad (three
characters on each key). These configurations are suitable for users who have trouble selecting the small
keys of the other interfaces, but still want to use touchscreen selection rather than scanning. Since each key
can represent any one of three letters, the Palmtop software works to determine the desired letter.
7.8.1. Config - Ambig-Char: Ambiguous Keypad with Character-Level
Disambiguation
When using the
Ambig-Char
configuration, the Palmtop software guesses (or disambiguates) what letter you
intended after each button press. If the software guesses incorrectly, you must select the
Recode
button
("abc" and two curved arrows) to correct the letter and then move on to the next letter. Since characters are
corrected one at a time, this type of input is known as character-level disambiguation. The Palmtop software
is pretty good at guessing the characters (especially near the end of words), so you should not have to use
the
Recode
button too often.
To help you understand the
Ambig-Char
configuration, consider this example. Try to type in the word "dog.”
First, you select the
def
button. An "f" will show up in the Editor Window because that is the letter that the
software guessed. Select the
Recode
button to choose a different letter. A "d" will appear in the Editor
Window. Now try to get the "o" by selecting the
mno
button. An "o" will appear after the "d" - the Palmtop
software guessed that you wanted "o" and not "m" or "n.” Now select the
ghi
key to get the final letter. The
software will guess "i" instead of "g." After you select
Recode
, the system will correctly guess "g." You have
finished typing "dog."
This may seem like a lot of work, but this example was deliberately chosen to show a couple of recodes to
get right - most of the time the system will guess the right characters.
Figure 41: Ambig-Char
Figure 42: Ambig-Char - Numbers Page
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