DocumentCode
1356806
Title
A simple and inexpensive telephone dialling aid for the disabled
Author
Su, Mu-Chun ; Cheng, Wan-Chi ; Chang, Po-Zuei ; Chang, Li-Zhong ; Huang, Yao-Wen ; Tew, Chee-Yuen
Author_Institution
Dept. of Electr. Eng., Tamkang Univ., Tamsui, Taiwan
Volume
11
Issue
2
fYear
2000
fDate
4/1/2000 12:00:00 AM
Firstpage
73
Lastpage
78
Abstract
The object of the work presented in the article is to design a simple and inexpensive telephone dialling aid, which allows disabled people to operate telephones by themselves. The dialling aid consists of four main blocks: a joystick-based interface unit, a microprocessor control unit, a keypad triggering circuit unit and an LED output display unit. Ten people were asked to evaluate a prototype of the dialling aid. The evaluation criteria were based on the success rates and the time needed to dial a telephone number.
Keywords
telephony; LED output display unit; dialling time; disabled people; evaluation criteria; joystick-based interface unit; keypad triggering circuit unit; microprocessor control unit; prototype; success rates; telephone dialling aid;
fLanguage
English
Journal_Title
Computing & Control Engineering Journal
Publisher
iet
ISSN
0956-3385
Type
jour
DOI
10.1049/cce:20000203
Filename
850842
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