Next Article in Journal
Illumination and Reflectance Estimation with its Application in Foreground Detection
Previous Article in Journal
Received Signal Strength Database Interpolation by Kriging for a Wi-Fi Indoor Positioning System
Article Menu

Export Article

Open AccessArticle
Sensors 2015, 15(9), 21394-21406; doi:10.3390/s150921394

Transferring Data from Smartwatch to Smartphone through Mechanical Wave Propagation

Device & System Research Center, Samsung Advanced Institute of Technology, 130 Samsung-ro, Yeongtong, Suwon, Gyeonggi-do 443-803, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Alexander Star
Received: 17 July 2015 / Revised: 18 August 2015 / Accepted: 26 August 2015 / Published: 28 August 2015
(This article belongs to the Section Biosensors)
View Full-Text   |   Download PDF [2263 KB, uploaded 28 August 2015]   |  

Abstract

Inspired by the mechanisms of bone conduction transmission, we present a novel sensor and actuation system that enables a smartwatch to securely communicate with a peripheral touch device, such as a smartphone. Our system regards hand structures as a mechanical waveguide that transmits particular signals through mechanical waves. As a signal, we used high-frequency vibrations (18.0–20.0 kHz) so that users cannot sense the signals either tactually or audibly. To this end, we adopted a commercial surface transducer, which is originally developed as a bone-conduction actuator, for mechanical signal generation. At the receiver side, a piezoelement was adopted for picking up the transferred mechanical signals. Experimental results have shown that the proposed system can successfully transfer data using mechanical waves. We also validate dual-frequency actuations under which high-frequency signals (18.0–20.0 kHz) are generated along with low-frequency (up to 250 Hz) haptic vibrations. The proposed method has advantages in terms of security in that it does not reveal the signals outside the body, meaning that it is not possible for attackers to eavesdrop on the signals. To further illustrate the possible application spaces, we conclude with explorations of the proposed approach. View Full-Text
Keywords: ultrasonic; acoustic transmission; non-radio communication; intra-body propagation; inter-device communication ultrasonic; acoustic transmission; non-radio communication; intra-body propagation; inter-device communication
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Kim, S.-C.; Lim, S.-C. Transferring Data from Smartwatch to Smartphone through Mechanical Wave Propagation. Sensors 2015, 15, 21394-21406.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top