US Patent Application 18355896. 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 18355896 titled 'METHOD FOR DETECTING FOREIGN MATERIAL, AND DEVICE AND SYSTEM THEREFOR
Simplified Explanation
The abstract describes a method for transmitting power wirelessly using a transmitter and receiver system.
- The method involves receiving packets from the wireless power receiver, including a foreign object detection (FOD) status packet.
- The FOD status packet helps determine if there is a foreign object present in the charging area of the transmitter.
- Based on the determination, a response signal is transmitted to the receiver indicating whether a foreign object is present.
- The response signal is determined using the measured peak frequency of the power signal transmitted by the transmitter and a reference peak frequency included in the FOD status packet.
- Each packet consists of a preamble, header, message, and checksum for error identification.
- The header is used to identify the type of each packet.
Original Abstract Submitted
A method of transmitting power by a wireless power transmitter, the method including receiving a plurality of packets including a foreign object detection (FOD) status packet from a wireless power receiver; determining whether a foreign object is present in a charging area of the wireless power transmitter on the basis of the FOD status packet; and transmitting, to the wireless power receiver, a response signal indicating whether the foreign object is present in the charging area of the wireless power transmitter on the basis of a result of the determination, 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.
