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公开(公告)号:US11870277B2
公开(公告)日:2024-01-09
申请号:US17825586
申请日:2022-05-26
Inventor: Hyung-Min Lee , Hyun-Su Lee
Abstract: Provided is a back-data transmission circuit generating a sensing signal using an arbitrary sensor, generating an input signal by digitally converting the sensing signal, generating a modulation signal by performing a modulation operation when there is a change in the input signal, inducing the modulation signal and transmitting the modulation signal to the transmitting terminal, measuring an induction signal induced from a receiving terminal to the transmitting terminal, and generating an output signal by calculating a slope of a voltage change represented by the induction signal.