US Patent Application 18224385. 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 18224385 titled 'METHOD FOR DETECTING FOREIGN MATERIAL, AND APPARATUS AND SYSTEM THEREFOR
Simplified Explanation
The abstract describes a power transmission method for a wireless power transmitter.
- The method involves receiving a packet from a wireless power receiver, which includes a foreign object detection (FOD) status packet.
- The FOD status packet contains information on a reference quality factor or a reference peak frequency.
- The method then determines whether a foreign object is present in the charging area of the wireless power transmitter based on the FOD status packet.
- It generates a foreign object detection indicator indicating the presence of a foreign object in the charging area based on the determination.
- The generated foreign object detection indicator is transmitted to the wireless power receiver.
- The packet may also include other types of information such as signal strength, end power transfer, power control hold-off, configuration, receiver identification, extension identification, general request, special request, control error, renegotiation, reception power, and charging status.
Original Abstract Submitted
A power transmission method for a wireless power transmitter, the power transmission method including receiving, from a wireless power receiver, a packet including a foreign object detection (FOD) status packet; 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 FOD status packet includes information on a reference quality factor or a reference peak frequency, and wherein the packet further includes at least one of a signal strength packet, an end power transfer packet, a power control hold-off packet, a configuration packet, an identification packet for transmitting receiver identification information, an extension identification packet, a general request packet, a special request packet, a control error packet, a renegotiation packet, a 24-bit reception power packet, an eight-bit reception power packet, and a charging status packet.
