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Rekimoto Lab

Interfaculty Initiative in Information Studies, The University of Tokyo – 東京大学大学院情報学環暦本研究室

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PreSense: Touch & Pressure Sensitive Interacition

pre-config

PreSense is a new input device that recognizes position, touch and pressure of a user’s finger. This input device acts as a normal touchpad, but also senses pressure for additional control. Tactile feedback is provided to indicate the state of the user interface to the user. By sensing the finger contact area, pressure can be treated in two ways, such as zoom-in and zoom-out. This combination enables various user interactions, including multiple hardware button emulation, map scrolling with continuous scale change, and list scrolling with pressure-based speed control.

PreSenseは指の位置・接触・圧力をセンスする入力デバイスである。外観は既存のタッチパネルやタッチパッドと同等にみえるが、圧力センサーによってスクロールやスケーリングなどのアナログパラメータを指先一本で制御することができる。指先の接触面積を認識することで、二方向のアナログコントロール(たとえば拡大と縮小)もモード切り替えなしに制御可能である。触覚フィードバックと併用することで、クリック感のあるリストスクロールや、多段レベルのボタンなどを動的に構成することができる。

state
PreSense state transition

twomode.png
Finger contact areafor controllingpositive/negativepressuremodes

References:

    • Jun Rekimoto and Carsten Schewsig, PreSenseII: Bi-directional Touch and Pressure Sensing Interactions with Tactile Feedback, CHI 2006 extended abstracts on Human factors in computing systems, pp.1253-1258, 2006.PDF
    • Jun Rekimoto, Takaaki Ishizawa, Carsten Schwesig, Haruo Oba, PreSense: Interaction Techniques for Finger Sensing Input Devices, ACM Symposium on User Interface Software and Technology (UIST 2003), pp.203-212, 2003. PDF
    • Jun Rekimoto, Takaaki Ishizawa, Haruo Oba, SmartPad: A Finger-Sensing Keypad for Mobile Interaction, CHI2003 late breaking, 2003. PDF

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