Position measurement apparatus and method for wireless power transfer
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United States of America
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Dec 14, 2021
Grant Date -
May 28, 2020
app pub date -
Nov 26, 2019
filing date -
Nov 26, 2019
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A position measurement method for position alignment with a vehicle, performed by a charging pad, may comprise performing synchronization with a vehicle entering a vicinity of the charging pad, transmitting low frequency (LF) signals having a same strength through a plurality of LF spots of the charging pad, receiving information on reception strengths of the LF signals from the vehicle, adjusting a transmission strength for the plurality of LF spots according to the information on reception strengths received from the vehicle, and transmitting the LF signals according to the adjusted transmission strength.
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