Internet Chat System for the Deaf-Blind Using Doubled Braille Display – DB4DB

  • Makoto Kobayashi
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4061)


This paper reports on a proposition of a communication system for the blind and deaf-blind person. The system is composed of a terminal which is named “Doubled Braille display terminal for the Deaf-Blind person (DB4DB).” This terminal equipped with two-lined refreshable Braille displays and its software is based on an Internet chat program. The one line of the display is for confirmation of inputted sentence by the user and the other one is for reading all messages from members who take part in the chat space. The proposal system enables the blind and deaf-blind person to recognize message from another member at anytime, even he/she is inputting his/her message.


Receive Message Screen Reader Input Sentence Blind User Braille Reading 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. 1.
    Su, M.C., Chen, C.Y., Su, S.Y., Chou, C.H., Hsiu, H.F., Wang, Y.C.: A Portable Communication Aid for Deaf-Blind People. IEE Computing & Control Engineering Journal 12(1), 37–43 (2001)CrossRefGoogle Scholar
  2. 2.
    Kobayashi, M., Minagawa, H., Nishioka, T., Miyoshi, S.: Chatting System that Supports Communications between the Visually and the Hearing Impaired. In: Proceedings of ICCHP2000, July 17-21, pp. 497–502 (2000)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Makoto Kobayashi
    • 1
  1. 1.Department of Computer ScienceTsukuba University of TechnologyTsukuba City, IbarakiJapan

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