The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 18, 2025
Filed:
Oct. 12, 2023
Yuqian HU, Greenbelt, MD (US);
Guozhen Zhu, Greenbelt, MD (US);
Beibei Wang, Clarksville, MD (US);
K. J. Ray Liu, Potomac, MD (US);
Oscar Chi-lim AU, Rockville, MD (US);
Yuqian Hu, Greenbelt, MD (US);
Guozhen Zhu, Greenbelt, MD (US);
Beibei Wang, Clarksville, MD (US);
K. J. Ray Liu, Potomac, MD (US);
Oscar Chi-Lim Au, Rockville, MD (US);
ORIGIN RESEARCH WIRELESS, INC., Rockville, MD (US);
Abstract
Methods, apparatus and systems for wireless sensing and proximity detection are described. For example, a described method comprises: transmitting, by a first wireless device, a wireless signal through a wireless multipath channel in a venue; receiving, by a second wireless device, the wireless signal through the wireless multipath channel, wherein the received wireless signal differs from the transmitted wireless signal due to the wireless multipath channel and a movement of an object in the venue; obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the received wireless signal; computing a first motion statistics based on a time-domain correlation of channel information (CI) in the TSCI; computing a second motion statistics based on a frequency-domain correlation of the CI in the TSCI; and detecting a proximity of the object to a target in the venue based on the first motion statistics and the second motion statistics.