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. 24, 2024
Filed:
Aug. 09, 2022
Renesas Electronics America Inc., Milpitas, CA (US);
Chan Young Jeong, San Jose, CA (US);
Tao Qi, San Diego, CA (US);
Young Chul Ryu, San Jose, CA (US);
Kwangmuk Choi, Cupertino, CA (US);
Pooja Agrawal, Milpitas, CA (US);
Krishal Jaswantsinh Solanki, Santa Clara, CA (US);
Adnan Dzebic, San Jose, CA (US);
Renesas Electronics America Inc., Milpitas, CA (US);
Abstract
Systems, apparatuses, and methods for detecting a foreign object on a wireless power charging region are described. A circuit can detect an object inductively coupled to a wireless power transmitter. The circuit can further measure an input parameter prior to a power transfer stage, the input parameter can be one of an input current and an input power. The circuit can further compare the measured input parameter with a predetermined value. The circuit can further determine whether the object is a foreign object or the wireless power receiver based on a result of the comparison between the measured input parameter with the predetermined value.