公开(公告)号：US20230261525A1

公开(公告)日：2023-08-17

申请号：US17673164

申请日：2022-02-16

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Minkyu JE ,  Yechan PARK ,  Chul KIM ,  Seok-Tae KOH ,  Jeongeun LEE ,  Hongkyun KIM ,  Jaesuk CHOI

IPC: H02J50/27 ,  H02J50/23 ,  H04B5/00

CPC classification number: H02J50/27 ,  H02J50/23 ,  H04B5/0037 ,  H04B5/0031

Abstract: A power and data receiver according to the present embodiment includes: a reception coil configured to receive a power data signal from a transmission coil; a power unit forming driving power from the power data signal; and a data demodulation unit configured to demodulate a data signal from the power data signal, wherein the reception coil operates adjacent to the transmission coil to the extent that a first resonant frequency and a second resonant frequency are formed between the reception coil and the transmission coil, and the reception coil operates at a frequency greater than or equal to the first resonant frequency and smaller than or equal to the second resonant frequency in relation to the transmission coil.

公开(公告)号：US20240118323A1

公开(公告)日：2024-04-11

申请号：US18188925

申请日：2023-03-23

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  Korea Advanced Institute of Science and Technology

Inventor： Nahm il KOO ,  Minkyu JE ,  Ji-Hoon SUH ,  Haidam CHOI

IPC: G01R19/10 ,  G01R25/00

CPC classification number: G01R19/10 ,  G01R25/00

Abstract: An electronic device includes a baseline current generator configured to generate a baseline current based on a reference current generated by a reference current generator, variable impedance circuitry configured to receive the baseline current, and subtraction circuitry configured to receive a measured voltage based on a result of the reference current being applied to a target impedance, and an estimated voltage generated based on a result of the baseline current being applied to the variable impedance circuitry and subtract the estimated voltage from the measured voltage.

公开(公告)号：US20220120797A1

公开(公告)日：2022-04-21

申请号：US17355375

申请日：2021-06-23

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  Korea Advanced Institute of Science and Technology

Inventor： Wonseok LEE ,  Ji-Hoon SUH ,  Minkyu JE ,  Sang Joon KIM

IPC: G01R27/16 ,  G01N27/02 ,  H03M1/00

Abstract: An impedance measuring apparatus is disclosed. The impedance measuring apparatus includes an input current generator configured to generate a sinusoidal input signal of a carrier frequency, a first electrode configured to apply the sinusoidal input signal to an object which has an impedance, a second electrode configured to receive an amplitude modulated signal from the object, a first amplifier configured to amplify the received amplitude modulated signal and output a first amplified signal, a baseline signal subtractor configured to subtract a baseline signal generated based on the first amplified signal from the amplitude modulated signal and output a subtraction modulated signal, an analog-to-digital converter (ADC) configured to convert the subtraction modulated signal to a digital modulated signal, and an impedance measurer configured to measure the impedance based on the digital modulated signal.