US Patent Application 18224382. 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 18224382 titled 'METHOD FOR DETECTING FOREIGN MATERIAL, AND APPARATUS AND SYSTEM THEREFOR

Simplified Explanation

The abstract describes a wireless power receiver that receives power from a wireless power transmitter. The receiver includes a communication unit, a memory, and a controller.

  • The wireless power receiver communicates with the wireless power transmitter.
  • It stores information on a reference quality factor and a reference peak frequency.
  • The controller generates a foreign object detection (FOD) status packet that includes information on the reference quality factor or the reference peak frequency.
  • The FOD status packet is transmitted to the wireless power transmitter.
  • The communication unit receives a foreign object detection indicator from the wireless power transmitter, indicating whether a foreign object is present in the charging area.
  • The FOD status packet has a length of two bytes.
  • One byte of the FOD status packet includes a 6-bit reservation field and a 2-bit mode field.
  • All bits of the reservation field are recorded as zero.


Original Abstract Submitted

A wireless power receiver that receives power from a wireless power transmitter, the wireless power receiver including a communication unit configured to communicate with the wireless power transmitter; a memory configured to store information on a reference quality factor and a reference peak frequency; and a controller, wherein the controller generates a foreign object detection (FOD) status packet including information on the reference quality factor or the reference peak frequency, wherein the communication unit transmits the FOD status packet to the wireless power transmitter, wherein the communication unit receives, from the wireless power transmitter, a foreign object detection indicator indicating whether a foreign object is present in a charging area of the wireless power transmitter in response to the FOD status packet, wherein the FOD status packet has a length of two bytes, wherein one byte of the FOD status packet includes a 6-bit reservation field and a 2-bit mode field, and wherein all bits of the reservation field are recorded as zero.

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