Power Transmitting Device Having Power Theft Detection and Prevention
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United States of America Patent
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N/A
Issued Date -
Jul 3, 2014
app pub date -
Apr 5, 2013
filing date -
Dec 28, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A wireless power transfer system is disclosed that includes multiple levels of authentication and several different options for implementing theft prevention. The power station can perform a first authentication procedure to collect billing information of the device to receive power. If the first authentication succeeds, the power station then performs a second authentication procedure in which it sends one or more test power signals to the receiving device. The power station estimates the amount of power that should actually be received by the receiving device and compares the estimate to a reported value sent from the receiving device to ensure that the reported value is within an acceptable margin of the estimate value. If either authentication fails, the power station can take power theft prevention methods to prevent the receiving device from acquiring free power.
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