US Patent Application 18355909. METHOD FOR DETECTING FOREIGN MATERIAL, AND DEVICE AND SYSTEM THEREFOR simplified abstract
Contents
METHOD FOR DETECTING FOREIGN MATERIAL, AND DEVICE AND SYSTEM THEREFOR
Organization Name
Inventor(s)
METHOD FOR DETECTING FOREIGN MATERIAL, AND DEVICE AND SYSTEM THEREFOR - A simplified explanation of the abstract
This abstract first appeared for US patent application 18355909 titled 'METHOD FOR DETECTING FOREIGN MATERIAL, AND DEVICE AND SYSTEM THEREFOR
Simplified Explanation
The abstract describes a method for wireless power receivers to receive power from a wireless power transmitter.
- The method involves transmitting multiple packets to the wireless power transmitter, including a foreign object detection (FOD) status packet.
- The wireless power transmitter then sends a response signal indicating whether there is a foreign object present in the charging area.
- The response signal is determined by comparing the measured peak frequency of the power signal transmitted by the wireless power transmitter with a reference peak frequency included in the FOD status packet received from the wireless power receiver.
- Each packet consists of a preamble, a header, a message, and a checksum to identify any errors in the packet.
- The header is used to identify the type of each packet.
Original Abstract Submitted
A method of receiving power by a wireless power receiver, the method including transmitting, to a wireless power transmitter, a plurality of packets including a foreign object detection (FOD) status packet; and receiving, from the wireless power transmitter, a response signal indicating whether a foreign object is present in a charging area of the wireless power transmitter, wherein the response signal is determined using a measured peak frequency of a power signal transmitted by the wireless power transmitter and a reference peak frequency included in the FOD status packet received from the wireless power receiver, wherein each of the plurality of packets includes a preamble, a header, a message, and a checksum for identifying whether an error occurs in each packet, and wherein the header is configured to identify a type of the each packet.
