A simple and inexpensive telephone dialling aid for the disabled
Journal
Computing & Control Engineering Journal
Journal Volume
11
Journal Issue
2
Pages
73-78
Date Issued
2000
Author(s)
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.
Type
journal article