US Patent Application 18223455. 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 18223455 titled 'METHOD FOR DETECTING FOREIGN MATERIAL, AND APPARATUS AND SYSTEM THEREFOR

Simplified Explanation

The patent application describes a wireless power receiver that receives power from a wireless power transmitter.

  • The wireless power receiver includes a wireless communication unit that communicates with the wireless power transmitter.
  • It also includes a controller that is responsible for controlling the power transmission procedures.
  • The wireless communication unit sends two foreign object status packets to the wireless power transmitter.
  • It receives a first foreign object detection indicator, which can be a positive or negative response signal, in response to the first foreign object status packet.
  • It also receives a second foreign object detection indicator, which can be a positive or negative response signal, in response to the second foreign object status packet.
  • The controller proceeds to a first power transmission procedure when both foreign object detection indicators are positive.
  • If at least one of the foreign object detection indicators is negative, the controller proceeds to a second power transmission procedure that requests termination of power transmission or a third power transmission procedure that is different from termination.


Original Abstract Submitted

A wireless power receiver that receives power from a wireless power transmitter, the wireless power receiver including a wireless communication unit configured to communicate with the wireless power transmitter; and a controller, wherein the wireless communication unit transmits a first foreign object status packet and a second foreign object status packet to the wireless power transmitter, wherein the wireless communication unit receives, from the wireless power transmitter, a first foreign object detection indicator including a positive response signal or a negative response signal to the first foreign object status packet, wherein the wireless communication unit receives, from the wireless power transmitter, a second foreign object detection indicator including a positive response signal or a negative response signal to the second foreign object status packet, and wherein the controller is configured to proceed to a first power transmission procedure when both the first foreign object detection indicator and the second foreign object detection indicator include the positive response signal, or is configured to proceed to a second power transmission procedure that requests termination of power transmission or proceed to a third power transmission procedure different from the termination of the power transmission when at least one of the first foreign object detection indicator and the second foreign object detection indicator includes the negative response signal.

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