NDLI: SonarPen: an ultrasonic pointing device for an interactive TV

Content Provider	IEEE Xplore Digital Library
Author	Misook Sohn Geehyuk Lee
Copyright Year	1975
Abstract	An interactive TV is requiring a more advanced remote controlling method than the traditional TV due to its diverse and complex functions. Many types of input technologies and interaction styles are being tested for remote pointing for an interactive TV. We introduce the SonarPen, an ultrasonic pointing device system developed for an interactive TV. It determines a cursor position from phase differences among sinusoidal signals received by three ultrasonic receivers. A common problem with phase difference methods is phase ambiguity, but we solved this problem by exploiting the directionality of an LED and discontinuity in phase difference signals. A performance evaluation of the SonarPen in comparison with other pointing devices showed that the SonarPen has a better throughput, while it has a relatively high error rate than others.
Sponsorship	IEEE Consumer Electronics Society
Starting Page	413
Ending Page	419
Page Count	7
File Size	646149
File Format	PDF
ISSN	00983063
Volume Number	50
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-05-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ultrasonic imaging Pulse measurements Ultrasonic transducers Phase measurement Time measurement Ultrasonic variables measurement Phase detection Infrared sensors TV receivers Position measurement
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Media Technology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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