US Patent Application 18223964. METHOD FOR DETECTING FOREIGN MATERIAL, AND APPARATUS AND SYSTEM THEREFOR simplified abstract
Contents
METHOD FOR DETECTING FOREIGN MATERIAL, AND APPARATUS AND SYSTEM THEREFOR
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Inventor(s)
METHOD FOR DETECTING FOREIGN MATERIAL, AND APPARATUS AND SYSTEM THEREFOR - A simplified explanation of the abstract
This abstract first appeared for US patent application 18223964 titled 'METHOD FOR DETECTING FOREIGN MATERIAL, AND APPARATUS AND SYSTEM THEREFOR
Simplified Explanation
- The patent application describes a method for receiving power wirelessly using a wireless power receiver. - The method involves storing information about a reference quality factor and a reference peak frequency. - A foreign object detection (FOD) status packet is generated, which includes the reference quality factor, reference peak frequency, and has a length of eight bits. - The FOD status packet is transmitted to a wireless power transmitter. - The wireless power receiver receives a foreign object detection indicator from the wireless power transmitter, indicating whether there is a foreign object present in the charging area. - The binary data of the eight-bit packet is subjected to differential bi-phase encoding. - Byte encoding is then performed on the differentially bi-phase encoded packet. - The byte encoded packet, which includes a start bit, a stop bit, and a parity bit, is transmitted back to the wireless power transmitter.
Original Abstract Submitted
A power reception method for a wireless power receiver, the power reception method including storing information on a reference quality factor and a reference peak frequency; generating a foreign object detection (FOD) status packet including the information on the reference quality factor and the reference peak frequency and a packet having a length of eight bits; transmitting the FOD status packet to a wireless power transmitter; receiving 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; performing differential bi-phase encoding for binary data of the packet having a length of eight bits; performing byte encoding for binary data of the differential bi-phase encoded packet; and transmitting the byte encoded packet to the wireless power transmitter, wherein the byte encoding is inserting a start bit, a stop bit, and a parity bit into binary bit stream of the differential bi-phase encoded packet.
