Evaluation of Physical and Mental Workloads in Character Input Operation with Mobile Phones

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  • Nagai Hiroaki
    Department of Media and Telecommunications, Faculty of Engineering, Ibaraki University
  • Haruhara Ken-ichi
    Department of Media and Telecommunications, Faculty of Engineering, Ibaraki University
  • Yanai Hiro-F.
    Department of Media and Telecommunications, Faculty of Engineering, Ibaraki University

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Other Title
  • 携帯電話文字入力操作の身体的および精神的負担の評価の試み(映像情報機器のヒューマンインタフェイスおよび一般)
  • 携帯電話文字入力操作の身体的および精神的負担の評価の試み
  • ケイタイ デンワ モジ ニュウリョク ソウサ ノ シンタイテキ オヨビ セイシンテキ フタン ノ ヒョウカ ノ ココロミ

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Abstract

Evaluation was made for physical and mental workload in Japanese character input operations with mobile phones. Hiragana input operations were decomposed into thumb's "pressing" on and "moving" over the keypad. Physical workloads of pressing and moving were estimated by subjective report from human subjects. By combining those workload values with each machine's operation scheme and Hiragana sentence database's character statistics, we successfully evaluated the subjects' individual physical workloads for specific machines.

Journal

  • ITE Technical Report

    ITE Technical Report 26.44 (0), 1-4, 2002

    The Institute of Image Information and Television Engineers

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