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:
Aug. 25, 2026
Filed:
May. 20, 2024
Applicant:
Qualcomm Incorporated, San Diego, CA (US);
Inventors:
Yiwu Tang, San Diego, CA (US);
Zhifei Fan, San Diego, CA (US);
Chengjin Zhang, San Diego, CA (US);
Yue Chao, San Diego, CA (US);
Assignee:
QUALCOMM Incorporated, San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 56/00 (2009.01); G16Y 40/30 (2020.01); G16Y 10/75 (2020.01);
U.S. Cl.
CPC ...
H04W 56/0035 (2013.01); G16Y 40/30 (2020.01); G16Y 10/75 (2020.01);
Abstract
Various aspects of the present disclosure generally relate to wireless communication. Some aspects more specifically relate to using one or more clock synchronization signals comprising sine waves to calibrate a local clock at an ambient internet of things (IoT) device. In some aspects, the ambient IoT device may receive a mixed signal comprising a pair of dual-tone sine waves and calibrate the local clock using a difference in frequencies of the pair of dual-tone sine waves.