US Patent Application 18223958. 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 18223958 titled 'METHOD FOR DETECTING FOREIGN MATERIAL, AND APPARATUS AND SYSTEM THEREFOR
Simplified Explanation
- The patent application describes a power transmission method for a wireless power transmitter. - The method involves receiving a packet from a wireless power receiver, which includes information about a reference quality factor or a reference peak frequency, as well as other packets related to signal strength, power transfer, power control, error control, renegotiation, reception power, and charging status. - The method then determines whether there is a foreign object present in the charging area of the wireless power transmitter based on the received packet. - A foreign object detection indicator is generated based on the determination and transmitted back to the wireless power receiver. - The byte encoding technique used in the method involves inserting a start bit, a stop bit, and a parity bit into an encoded binary bit stream of a packet with a length of 8 bits.
Original Abstract Submitted
A power transmission method for a wireless power transmitter, the power transmission method including receiving, from a wireless power receiver, a foreign object detection (FOD) status packet including information on a reference quality factor or a reference peak frequency, and at least one of a signal strength packet, an end power transfer packet, a power control hold-off packet, a control error packet, a renegotiation packet, an eight-bit reception power packet, and a charging status packet to which a byte encoding technique is applied; determining whether a foreign object is present in a charging area of the wireless power transmitter based on the FOD status packet; and generating a foreign object detection indicator indicating whether the foreign object is present in the charging area of the wireless power transmitter based on a result of the determination and transmitting the generated foreign object detection indicator to the wireless power receiver, wherein the byte encoding technique is a technique of inserting a start bit, a stop bit, and a parity bit into an encoded binary bit stream of a packet having a length of 8 bits.
