System and method for proximity detection with single-antenna device
Timothy J. Pierson, Ronald Peterson, and David F. Kotz.
System and method for proximity detection with single-antenna device.
U.S. Patent 11,871,233; International Patent Application WO2019210201A1, January 9, 2024.
Priority date 2018-04-27; Filed 2019-04-26; Published 2021-07-29, Issued 2024-01-09.
Abstract: A single-antenna device includes a single antenna, at least one processor, and at least one memory. The single-antenna device is operable to receive a signal including at least one frame. Each of said frame includes a repeating portion. The single-antenna device determines a difference of phase and amplitude of the repeating portion and further determines whether the signal is transmitted from a trusted source based at least in part on the difference of phase and amplitude of the repeating portion. Citable with [BibTeX]: \cite{pierson:snap-patent} Projects: [thaw] Keywords: [authentication] [iot] [mhealth] [patent] [security] [wifi] Available from the publisher: [page] Available from the author:
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