US Patent Application 18223453. METHOD FOR DETECTING FOREIGN MATERIAL, AND APPARATUS AND SYSTEM THEREFOR simplified abstract

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METHOD FOR DETECTING FOREIGN MATERIAL, AND APPARATUS AND SYSTEM THEREFOR

Organization Name

LG INNOTEK CO., LTD.


Inventor(s)

Jae Hee Park of Seoul (KR)

METHOD FOR DETECTING FOREIGN MATERIAL, AND APPARATUS AND SYSTEM THEREFOR - A simplified explanation of the abstract

This abstract first appeared for US patent application 18223453 titled 'METHOD FOR DETECTING FOREIGN MATERIAL, AND APPARATUS AND SYSTEM THEREFOR

Simplified Explanation

The abstract describes a method for wireless power transmission that involves detecting foreign objects in the charging area of a wireless power transmitter.

  • The method involves receiving two packets of information from a wireless power receiver.
  • The first packet includes a reference value and mode information, while the second packet includes a different reference value and mode information.
  • The mode information in each packet indicates whether the reference value represents a quality factor or a peak frequency of the wireless power receiver.
  • The wireless power transmitter then transmits a foreign object detection indicator to the receiver, indicating whether a foreign object is present in the charging area.


Original Abstract Submitted

A wireless power transmission method including receiving, from a wireless power receiver, a first foreign object status packet and a second foreign object status packet; and transmitting, to the wireless power receiver, a foreign object detection indicator indicating whether a foreign object is present in a charging area of a wireless power transmitter, wherein the first foreign object status packet includes a first reference value and mode information, wherein the second foreign object status packet includes a second reference value and mode information, wherein the mode information of the first foreign object status packet indicates whether the first reference value is a reference quality factor or a reference peak frequency of the wireless power receiver, and wherein the mode information of the second foreign object status packet indicates whether the second reference value is the reference quality factor or the reference peak frequency of the wireless power receiver.

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