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公开(公告)号：US20220244298A1
公开(公告)日：2022-08-04
申请号：US17587084
申请日：2022-01-28
Inventor： Ji Won YOON , Ji Hyuk JUNG , Youngbae JEON
Abstract: Disclosed is a device and method for extracting electric network frequency (ENF). An ENF extraction device includes an electric conductor configured to receive an electromagnetic wave generated by an adjacent alternating current (AC) power source; a sampling device configured to sample an output signal of the electric conductor; and a processor configured to extract ENF based on an output signal of the sampling device.
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