US Patent Application 18223966. METHOD FOR DETECTING FOREIGN MATERIAL, AND APPARATUS AND SYSTEM THEREFOR simplified abstract
Contents
METHOD FOR DETECTING FOREIGN MATERIAL, AND APPARATUS AND SYSTEM THEREFOR
Organization Name
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 18223966 titled 'METHOD FOR DETECTING FOREIGN MATERIAL, AND APPARATUS AND SYSTEM THEREFOR
Simplified Explanation
- The patent application describes a wireless power receiver that can receive power from a wireless power transmitter. - The wireless power receiver includes a communication unit that can communicate with the wireless power transmitter. - The receiver also includes a controller that generates a packet called the foreign object detection (FOD) status packet, which contains information about the quality factor or peak frequency. - The FOD status packet is 8 bits long and is transmitted to the wireless power transmitter. - The communication unit can receive a foreign object detection indicator from the wireless power transmitter, which indicates whether there is a foreign object present in the charging area of the transmitter. - The controller performs differential bi-phase encoding for the binary data of the 8-bit packet. - The controller also performs byte encoding for the binary data of the differentially bi-phase encoded packet. - The byte encoding involves inserting a start bit, a stop bit, and a parity bit into the binary bit stream of the differentially bi-phase encoded packet.
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; and a controller, wherein the controller generates a foreign object detection (FOD) status packet including information on a reference quality factor or a reference peak frequency, and a packet having a length of eight bit, 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 MD status packet, wherein the controller performs differential bi-phase encoding for binary data of the packet having a length of eight bits, wherein the controller performs byte encoding for binary data of the differential bi-phase encoded packet, wherein the communication unit transmits the byte encoded packet to the wireless power transmitter, and 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.
