A scanning telephone dialing aid for persons with hand malfunction

Mu Chun Su, Wan Chi Cheng, Yao Wen Huang, Li Zhong Chang, Po Zuei Chang

Research output: Contribution to journalArticlepeer-review


In general, the conversation through telephones has become an important part of daily life. However, many physically disabled persons who have insufficient manual dexterity to operate a telephone keypad can not benefit from use of such a telephone communication system. The object of the work presented in the article is to design a simple and inexpensive telephone dialing aid, which allows disabled persons to dial telephones themselves. The dialing aid consists of four main blocks: an input unit, a microprocessor control unit, a keypad triggering circuit unit, and an LED output display unit. Ten persons were asked to evaluate a prototype of the dialing aid. On average, it took 107.1 seconds to make a 8-digit phone call.

Original languageEnglish
Pages (from-to)69-73
Number of pages5
JournalJournal of Medical and Biological Engineering
Issue number1
StatePublished - 2001


  • Assistive device
  • Man-machine interface
  • Rehabilitation
  • Telephone communication system


Dive into the research topics of 'A scanning telephone dialing aid for persons with hand malfunction'. Together they form a unique fingerprint.

Cite this