Method for detecting foreign material, and device and system therefor

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12176731
APP PUB NO 20240030750A1
SERIAL NO

18355891

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Abstract

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A wireless power transmitter including a reception unit configured to receive a foreign object detection (FOD) status packet from a wireless power receiver; and a transmission unit configured to transmit a response indicating whether a foreign object is present in a charging area of the wireless power transmitter to the wireless power receiver, wherein the FOD status packet includes a mode bit field, wherein the mode bit field indicates whether the FOD status packet includes a reference peak frequency of the wireless power receiver, wherein the reference peak frequency is pre-allocated to the wireless power receiver, and wherein the response is determined using a measured peak frequency of a transmitted power signal and an adaptive threshold frequency based on the reference peak frequency included in the FOD status packet.

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Patent Owner(s)

Patent OwnerAddress
LG INNOTEK CO LTD20TH FLOOR SEOUL SQUARE 541 NAMDAEMUNNO 5-GA JUNG-GU SEOUL 100-714

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kwon, Yong Il Seoul, KR 132 1276
Park, Jae Hee Seoul, KR 60 312

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