ExtensionClip: Touch point transfer device linking both sides of a smartphone for mobile VR environments

Ryosuke Takada, Hiroyuki Manabe, Toshiya Isomoto, Buntarou Shizuki, Wataru Yamada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

We show ExtensionClip, a system that offers back-of-device touch interaction for a cardboard head-mounted display; it links the back of the smartphone to its touchscreen to greatly enhance the touch input area and usability. ExtensionClip sandwiches the smartphone between two magnets; the front magnet, which tracks the position of the back magnet, triggers touch events on the smartphone’s touchscreen by capacitive coupling. ExtensionClip detects the user’s touch of the back magnet from a change in the size of the touch area on the smartphone’s touchscreen; thus ExtensionClip offers pointing functionality like a mouse. We fabricate an ExtensionClip prototype and conduct user studies. In the first study, we determine the threshold needed to detect the user’s touch on the back magnet. Next, we measure the precision and the selection speed possible with ExtensionClip.

Original languageEnglish
Title of host publicationCHI 2018 - Extended Abstracts of the 2018 CHI Conference on Human Factors in Computing Systems
Subtitle of host publicationEngage with CHI
PublisherAssociation for Computing Machinery
ISBN (Electronic)9781450356206, 9781450356213
DOIs
Publication statusPublished - 2018 Apr 20
Externally publishedYes
Event2018 CHI Conference on Human Factors in Computing Systems, CHI EA 2018 - Montreal, Canada
Duration: 2018 Apr 212018 Apr 26

Publication series

NameConference on Human Factors in Computing Systems - Proceedings
Volume2018-April

Conference

Conference2018 CHI Conference on Human Factors in Computing Systems, CHI EA 2018
CountryCanada
CityMontreal
Period18/4/2118/4/26

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Keywords

  • Back-of-device interaction
  • Conductive
  • Pointing

ASJC Scopus subject areas

  • Human-Computer Interaction
  • Computer Graphics and Computer-Aided Design
  • Software

Cite this

Takada, R., Manabe, H., Isomoto, T., Shizuki, B., & Yamada, W. (2018). ExtensionClip: Touch point transfer device linking both sides of a smartphone for mobile VR environments. In CHI 2018 - Extended Abstracts of the 2018 CHI Conference on Human Factors in Computing Systems: Engage with CHI (Conference on Human Factors in Computing Systems - Proceedings; Vol. 2018-April). Association for Computing Machinery. https://doi.org/10.1145/3170427.3188644