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:
Nov. 15, 2022
Filed:
Mar. 27, 2021
Yuqian HU, College Park, MD (US);
Beibei Wang, Clarksville, MD (US);
Muhammed Zahid Ozturk, University Park, MD (US);
Feng Zhang, Greenbelt, MD (US);
K. J. Ray Liu, Potomac, MD (US);
Oscar Chi-lim AU, San Jose, CA (US);
Xiaolu Zeng, Greenbelt, MD (US);
Chenshu Wu, Hong Kong, CN;
Fengyu Wang, College Park, MD (US);
Yuqian Hu, College Park, MD (US);
Beibei Wang, Clarksville, MD (US);
Muhammed Zahid Ozturk, University Park, MD (US);
Feng Zhang, Greenbelt, MD (US);
K. J. Ray Liu, Potomac, MD (US);
Oscar Chi-Lim Au, San Jose, CA (US);
Xiaolu Zeng, Greenbelt, MD (US);
Chenshu Wu, Hong Kong, CN;
Fengyu Wang, College Park, MD (US);
ORIGIN WIRELESS, INC., Greenbelt, MD (US);
Abstract
Methods, apparatus and systems for wireless proximity sensing are described. In one example, a described system comprises: a transmitter configured for transmitting a first wireless signal through a wireless multipath channel of a venue; a receiver configured for receiving a second wireless signal through the wireless multipath channel; and a processor. The second wireless signal differs from the first wireless signal due to the wireless multipath channel that is impacted by a movement of an object in the venue. The processor is configured for: obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the second wireless signal, wherein each channel information (CI) of the TSCI comprises a plurality of CI components, each of which is associated with an index; computing an inter-component statistics based on the plurality of CI components; computing, based on the inter-component statistics, a proximity information of the object with respect to a reference location in the venue; and performing a task based on the proximity information of the object.