Fundamental Development of Ultrasonic Information Transmission System for Wearable Devices
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概要
- 論文の詳細を見る
A wearable device is an electronic device miniaturized to a wearable size with computing and wireless communication functions. In this study, we have applied a communication system using ultrasonic waves to a wearable device. Ultrasonic waves are safe for the human body and do not cause the malfunction of electronic equipment. In addition, communication using ultrasonic waves is effective for preventing "skimming" because ultrasonic waves can transmit through the human body and have a large attenuation in air. Wearable devices can also be used in areas where electromagnetic waves are limited. We have developed an experimental prototype device. The prototype contains a one-chip microcomputer used to verify the size and battery consumption of the wearable device. As a result, the developed prototype realized bidirectional communication with a suitable device size and power consumption. The communication speed corresponds to 250 kbps. This value is equivalent to that of a conventional IC card system using electromagnetic waves. With this proposed system, we can achive various practical applications that can maintain absolute privacy while transmitting information through the human body.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2009-07-25
著者
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Ishihara Manabu
Department Of Elec. And Comp. Eng. Oyama National College Of Technology
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Kobayashi Kazuto
Honda Electronics Co. Ltd. Aichi Jpn
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Saito Osami
Faculty Of Engineering Chiba University
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Katane Tamotsu
Faculty Of Engineering Chiba University
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Kobayashi Yukio
Department Of Chemistry Faculity Of Science Tokai University
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Suzuki Shin-nosuke
Department of Electrical and Computer Engineering, Oyama National College of Technology, 771 Nakakuki, Oyama, Tochigi 323-0806, Japan
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Kobayashi Yukio
Department of Electrical and Computer Engineering, Oyama National College of Technology, 771 Nakakuki, Oyama, Tochigi 323-0806, Japan
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