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:
Sep. 05, 2023
Filed:
Dec. 04, 2019
Meta Platforms Technologies, Llc, Menlo Park, CA (US);
Riccardo DeSalvo, Los Angeles, CA (US);
Giuseppe Castaldi, Apice, IT;
Andrea Cusano, Caserta, IT;
Vincenzo Galdi, Benevento, IT;
Paolo Mattera, Benevento, IT;
Roberto Parente, Cerreto Sannita, IT;
Fereydoun Daneshgaran, La Crescenta, CA (US);
Joseph Minh Tien, Alhambra, CA (US);
Dustin Jeffery Gordon Krogstad, Chino, CA (US);
Meta Platforms Technologies, LLC, Menlo Park, CA (US);
Abstract
The disclosed radar system may include a radar mechanism comprising a transmitter and at least one receiver. The radar system may also include a signal generator that generates a frequency-modulated radar signal. In addition, the radar system may include at least one frequency multiplier that, after multiplying a frequency of the frequency-modulated radar signal by a certain factor, synchronously passes the frequency-modulated radar signal to (1) the transmitter to be transmitted to at least one transponder located on a wearable device and (2) a processing device communicatively coupled to the receiver. The processing device may (1) detect a signal returned to the receiver from the transponder in response to the frequency-modulated radar signal and (2) calculate a distance between the transponder and the receiver based at least in part on an analysis of the signal returned from the transponder and the frequency-modulated radar signal received from the frequency multiplier.