Qanti: A Software Tool for Quick Ambiguous Non-standard Text Input

  • Torsten Felzer
  • Ian Scott MacKenzie
  • Philipp Beckerle
  • Stephan Rinderknecht
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6180)


This paper introduces a single-key text entry application for users with severe physical impairments. The tool combines the idea of a scanning ambiguous keyboard (which promises unusually high entry rates) with intentional muscle contractions as input signals (which require much less physical effort compared to key presses). In addition to the program architecture, the paper presents the results of several evaluations with participants with and without disabilities. An entry speed of 6.59 wpm was achieved.


Human-computer interaction scanning ambiguous key- boards intentional muscle contractions 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Torsten Felzer
    • 1
  • Ian Scott MacKenzie
    • 2
  • Philipp Beckerle
    • 1
  • Stephan Rinderknecht
    • 1
  1. 1.Institute for Mechatronic SystemsTechnische Universität DarmstadtDarmstadtGermany
  2. 2.Department of Computer Science and EngineeringYork UniversityTorontoCanada

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