An Internet Interface for Physically-disabled Users

Cheng-Hong Yang, L.-Y. Chuang, Cheng-Huei Yang, and S.-L. Lin (Taiwan)


Morse code, Adaptive signal processing,WWW, Internet, Least-Mean-Square algorithm.


Technologically assistive devices are gradually playing more important roles in the lives of disabled people, with one of the more promising considerations being a combination of the functions of computer software and hardware. However, a conventional keyboard is prohibitive to a physically handicapped person whose hand coordination and dexterity are impaired by such ailments as muscle atrophy, cerebral palsy, and other severe handicaps. To assist disabled participants in sharing the resources of the Internet we designed and implemented an easy-to-operate input interface in this study. Morse code, with an easily operated single-switch input device, was selected as the adaptive communication tool. After two months’ practice on this new system, three participants with physically disabilities could easily gain access to the Internet.

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