NDLI: Keyless entry system with radio card transponder (automobiles)

Content Provider	IEEE Xplore Digital Library
Author	Hirano, M. Takeuchi, M. Tomoda, T. Nakano, K.-I.
Copyright Year	1982
Abstract	A keyless entry system for locking and unlocking vehicle doors, and for opening the trunk is described. This system utilizes a small (ordinary credit-card size) card transponder with a built-in personal identification code that can be carried in a pocket or a briefcase and the user does not have to take it out for use because the signal transmission is effected by inductive coupling between the card and loop antennas built into the door mirror housing and rear bumper. By touching a switch provided near the trunk keyhole, the user can open the door or trunk as if there were no locks. For anti-theft security and reliability, the system incorporates a twin-loop antenna that generates a rotating magnetic field, and a detection system to prevent the card transponder from being left inside the vehicle. This system has been installed in the luxury classes of Nissan models in the Japanese market.<>
Sponsorship	IEEE Industrial Electronics Society
Starting Page	208
Ending Page	216
Page Count	9
File Size	1351254
File Format	PDF
ISSN	02780046
Volume Number	35
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1988-05-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Transponders Automobiles Vehicles Switches Signal processing Couplings Transmitting antennas Mirrors Security Magnetic fields
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Electrical and Electronic Engineering Computer Science Applications

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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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
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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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