1. An Intellectual Chinese Input System for Mobile Phones Based Upon Chinese Phonetic Symbols
Author: Chun-Liang Tung, Tung-Shou Chen and Yung-Chang Chiang
Source: International Journal of Computer Processing of Oriental Languages, Vol. 15, No. 4 (2002) pp
Speaker: Jason Kai-Jung Shih
Date:

2. Outline Introduction Chinese input system for mobile phones
Arrayal combinations of phonetic symbols
Experimental results
Jason Kai-Jung Shih

3. Chinese Input System for Mobile Phones
Chinese phonetic symbols
21 consonants and 16 vowels
10,000 words and 5,000 common words
Input buttons of mobile phones
9 or 10 for phonetic symbols
1 for inputting tones
Input buttons(0~9, * and #) of mobile phones
Jason Kai-Jung Shih

4. Chinese Input System for Mobile Phones (cont’)
General mobile phone. (“方”)
ㄈ：1→1→1→1
ㄤ：9→9→9 ㄈㄤ
芳、方、坊、枋、淓、鈁…
SCREEN
1 ㄅㄆㄇㄈ
2 ㄉㄊㄋㄌ
3 ㄍㄎㄏ
4 ㄐㄑㄒ
5 ㄓㄔㄕㄖ
6 ㄗㄘㄙ
7 ㄚㄛㄜㄝ
8 ㄞㄟㄠㄡ
9 ㄢㄣㄤㄥ *
# ㄧㄨㄩㄦ
Intellectual mobile phone.
ㄈ：1
ㄤ：6
ㄅㄣ、ㄅㄤ、ㄈㄣ、ㄈㄤ、ㄋㄣ、ㄋㄤ
芳、方、坊、枋、淓、鈁…
SCREEN
1 ㄅㄈㄋㄚ
2 ㄍㄐㄞㄧ
3 ㄓㄗㄢㄦ
4 ㄆㄉㄌㄛ
5 ㄎㄑㄟㄨ
6 ㄔㄘㄣㄤ
7 ㄇㄊㄜㄝ
8 ㄏㄒㄠㄡㄩ
9 ㄕㄖㄙㄥ * #
Jason Kai-Jung Shih

5. Arrayal Combinations of Phonetic Symbols1
ㄅㄆ ㄇㄈ ㄉㄊ 2
ㄅㄆ ㄇㄉ ㄈㄊ 3
ㄅㄆ ㄇㄊ ㄈㄉ 4
ㄅㄇ ㄆㄈ ㄉㄊ 5
ㄅㄇ ㄆㄉ ㄈㄊ 6
ㄅㄇ ㄆㄊ ㄈㄉ 7
ㄅㄈ ㄆㄇ ㄉㄊ 8
ㄅㄈ ㄆㄉ ㄇㄊ 9
ㄅㄈ ㄆㄊ ㄇㄉ 10
ㄅㄉ ㄆㄇ ㄈㄊ 11
ㄅㄉ ㄆㄈ ㄈㄊ 12
ㄅㄉ ㄆㄊ ㄇㄈ 13
ㄅㄊ ㄆㄇ ㄈㄉ 14
ㄅㄊ ㄆㄈ ㄇㄉ 15
ㄅㄊ ㄆㄉ ㄇㄈ
Example:
6 Phonetic symbols:
ㄅㄆㄇㄈㄉㄊ
3 Input buttons:
Combinations:
T=C(5,1)*C(3,1)*C(1,1)=15
37 phonetic symbols with 10 buttons
T=C(36,3)*C(32,3)*C(28,3)*C(24,3)* C(20,3)*C(16,3)*C(12,3)*C(8,3)* C(4,4) =139,277,978,876,149,282
Jason Kai-Jung Shih

6. Phonetic Symbol Combinations
Jason Kai-Jung Shih

7. Reduce the Combinations (Cont’)
8 phonetic symbols with 2 buttons (“方”)
Original: “1ㄅㄆㄇㄈ” and “2ㄢㄣㄤㄥ”
ㄅㄢ、ㄅㄣ、ㄅㄤ、ㄅㄥ、 ㄆㄢ、ㄆㄣ、ㄆㄤ、ㄆㄥ、 ㄇㄢ、ㄇㄣ、ㄇㄤ、ㄇㄥ、 ㄈㄢ、ㄈㄣ、ㄈㄤ、ㄈㄥ。
Arranged: “1ㄅㄈㄢㄣ” and “2ㄆㄇㄤㄥ”
ㄅㄤ、ㄅㄥ、 ㄈㄤ、ㄈㄥ。
Jason Kai-Jung Shih

8. Reduce the Combinations (Cont’)
37 phonetic symbols with 9 buttons
Sequential order
T=C(36,3)*C(32,3)*C(28,3)*C(24,3)*C(20,3)* C(16,3)*C(12,3)*C(8,3)*C(4,4) =139,277,978,876,149,282
Arranged order
Choose 18 of 21 consonants
T=C(17,1)*C(15,1)*C(13,1)*C(11,1)*C(9,1)* C(7,1)*C(5,1)*C(3,1)*C(1,1) =33,459,425
Jason Kai-Jung Shih

9. Experimental Results
Jason Kai-Jung Shih