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

doi:10.1145/3170427.3188644

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 proceeding › Conference 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 language	English
Title of host publication	CHI 2018 - Extended Abstracts of the 2018 CHI Conference on Human Factors in Computing Systems
Subtitle of host publication	Engage with CHI
Publisher	Association for Computing Machinery
ISBN (Electronic)	9781450356206, 9781450356213
DOIs	https://doi.org/10.1145/3170427.3188644
Publication status	Published - 2018 Apr 20
Externally published	Yes
Event	2018 CHI Conference on Human Factors in Computing Systems, CHI EA 2018 - Montreal, Canada Duration: 2018 Apr 21 → 2018 Apr 26

Publication series

Name	Conference on Human Factors in Computing Systems - Proceedings
Volume	2018-April

Conference

Conference	2018 CHI Conference on Human Factors in Computing Systems, CHI EA 2018
Country	Canada
City	Montreal
Period	18/4/21 → 18/4/26

Keywords

Back-of-device interaction
Conductive
Pointing

ASJC Scopus subject areas

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

Access to Document

10.1145/3170427.3188644

Fingerprint Dive into the research topics of 'ExtensionClip: Touch point transfer device linking both sides of a smartphone for mobile VR environments'. Together they form a unique fingerprint.

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

ExtensionClip : Touch point transfer device linking both sides of a smartphone for mobile VR environments. / Takada, Ryosuke; Manabe, Hiroyuki; Isomoto, Toshiya; Shizuki, Buntarou; Yamada, Wataru.

CHI 2018 - Extended Abstracts of the 2018 CHI Conference on Human Factors in Computing Systems: Engage with CHI. Association for Computing Machinery, 2018. (Conference on Human Factors in Computing Systems - Proceedings; Vol. 2018-April).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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, 2018 CHI Conference on Human Factors in Computing Systems, CHI EA 2018, Montreal, Canada, 18/4/21. https://doi.org/10.1145/3170427.3188644

Takada R, Manabe H, Isomoto T, Shizuki B, Yamada W. 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. Association for Computing Machinery. 2018. (Conference on Human Factors in Computing Systems - Proceedings). https://doi.org/10.1145/3170427.3188644

Takada, Ryosuke ; Manabe, Hiroyuki ; Isomoto, Toshiya ; Shizuki, Buntarou ; Yamada, Wataru. / ExtensionClip : Touch point transfer device linking both sides of a smartphone for mobile VR environments. CHI 2018 - Extended Abstracts of the 2018 CHI Conference on Human Factors in Computing Systems: Engage with CHI. Association for Computing Machinery, 2018. (Conference on Human Factors in Computing Systems - Proceedings).

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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{\textquoteright}s touchscreen by capacitive coupling. ExtensionClip detects the user{\textquoteright}s touch of the back magnet from a change in the size of the touch area on the smartphone{\textquoteright}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{\textquoteright}s touch on the back magnet. Next, we measure the precision and the selection speed possible with ExtensionClip.",

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