|
Title:
|
STUDY OF TILT ANGLE OF A PDA IN USE |
|
Author(s):
|
Jun Yamashita , Hiroshi Hansaki , Hideaki Kuzuoka , Hiroshi Kato , Hideyuki Suzuki |
|
ISBN:
|
978-972-8924-95-9 |
|
Editors:
|
Kinshuk, Demetrios G Sampson, J. Michael Spector,Pedro Isaías and Dirk Ifenthaler |
|
Year:
|
2009 |
|
Edition:
|
Single |
|
Keywords:
|
IR communication, PDA, usability, education, Sounding Board |
|
Type:
|
Reflection Paper |
|
First Page:
|
523 |
|
Last Page:
|
525 |
|
Language:
|
English |
|
Cover:
|
|
|
Full Contents:
|
click to dowload 
|
|
Paper Abstract:
|
We have developed a device called Sounding Board that enables mutual and instant assessment during an activity. We
previously performed an experiment in an elementary school whose students were able to operate the handheld device
without difficulty. However, some technical problems remained, such as the tradeoff between the operating and infrared
(IR) receiving angles. This problem occurred because the tilt angle to capture the IR signals differed from that to view the
screen of the handheld device. To solve this problem, we developed a device that can detect the tilt angle when a user
operates a personal digital assistant (PDA), and performed experiments to determine the suitable angle for pointing some
targets displayed on the screen. This experiment revealed that the average tilt angle is 40°. |
|
|
|
|
|
|
