Investigating Accuracy of Tilting Operation on Wrist-worn Devices with
Touchscreens
Late-Breaking Works: Novel Interactions
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Shima, Keigo
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Onishi, Kazusa
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Takada, Ryosuke
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Adachi, Takuya
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Shizuki, Buntarou
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Tanaka, Jiro
Extended Abstracts of the ACM CHI'16 Conference on Human Factors in
Computing Systems
2016-05-07
v.2
p.2705-2711
© Copyright 2016 ACM
Summary: The tilting operation has been shown to be useful in expanding the input
vocabulary of a small device; therefore, this operation could also be useful in
expanding the input vocabulary of wrist-worn devices. In this study, in order
to explore new design guidelines of GUI and operation methods for smartwatches,
we have investigated the accuracy of the tilting operation for smartwatches. We
conducted an experiment using a cursor whose position is determined according
to the direction and angle of tilt. The result shows that the deviation in the
x-axis (i.e., the inclination of the arm) direction ranges from -0.10 degrees
to +0.07 degrees and from -0.10 degrees to +0.07 degrees under Seating and
Standing condition, respectively; the deviation in the y-axis (i.e., the
rotation of the wrist) direction from -0.12 degrees to +0.10 degrees and from
-0.12 degrees to +0.09 degrees.
MonoTouch: Single Capacitive Touch Sensor that Differentiates Touch Gestures
Late-Breaking Works: Novel Interactions
/
Takada, Ryosuke
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Shizuki, Buntarou
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Tanaka, Jiro
Extended Abstracts of the ACM CHI'16 Conference on Human Factors in
Computing Systems
2016-05-07
v.2
p.2736-2743
© Copyright 2016 ACM
Summary: We show a capacitive touch sensor called MonoTouch, which differentiates
taps, swipe gestures, and swipe directions. MonoTouch consists of only an
electrode and a circuit. To differentiate touch gestures with a single
electrode, we designed the electrode's layout to satisfy the following two
requirements: (1) The number of responses is different between the gestures;
(2) The response time is different between swipe directions. We then developed
an electrode that differentiates taps and four directional swipe gestures. When
our MonoTouch electrode is downsized, gesture differentiation accuracy
decreases because a finger might cross two or more conductive parts. To solve
this "Multiple Crossing Problem", we added embossments on the electrode
surface. Our evaluation of the MonoTouch sensor indicates that using the
embossments solved the "Multiple Crossing Problem".
AirFlip-Undo: Quick Undo using a Double Crossing In-Air Gesture in Hover
Zone
Posters
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Shima, Keigo
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Takada, Ryosuke
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Onishi, Kazusa
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Adachi, Takuya
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Shizuki, Buntarou
/
Tanaka, Jiro
Adjunct Proceedings of the 2015 ACM Symposium on User Interface Software and
Technology
2005-11-08
v.2
p.97-98
© Copyright 2005 ACM
Summary: In this work, we use AirFlip to undo text input on mobile touchscreen
devices. AirFlip involves a quick double crossing in-air gesture in the
boundary surfaces of hover zone of devices that have hover sensing capability.
To evaluate the effectiveness of undoing text input with AirFlip, we
implemented two QWERTY soft keyboards (AirFlip keyboard and Typical keyboard).
With these keyboards, we conducted a user study to investigate the users'
workload and to collect subjective opinions. The results show that there is no
significant difference in workload between keyboards.
