公开(公告)号：US20240291518A1

公开(公告)日：2024-08-29

申请号：US18470751

申请日：2023-09-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Nyeongmin KWON ,  Seokyeong KWON ,  Seok-Hyun KIM

IPC: H04B5/00 ,  H03H7/38

CPC classification number: H04B5/77 ,  H03H7/38

Abstract: A short-range wireless communication device includes an impedance matching circuit configured to output a radio frequency (RF) signal in a turn-on period, the RF signal being based on a reference clock signal, and output a sensing signal in a turn-off period, and processing circuitry configured to extract a recovered clock signal from the sensing signal, detect a phase difference between the recovered clock signal and the reference clock signal, and detect a resonant frequency of the impedance matching circuit based on the phase difference.

公开(公告)号：US20150295622A1

公开(公告)日：2015-10-15

申请号：US14672710

申请日：2015-03-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jinwoo KIM ,  Junho KIM ,  Seok-Hyun KIM ,  HANGSEOK CHOI

IPC: H04B5/00 ,  H04B1/10

CPC classification number: H04B5/0062 ,  H04B1/1018 ,  H04B5/0025

Abstract: A calibrator to process an output signal of an analog digital converter in a wireless communication device, the calibrator comprising a level filter to remove noise from the output signal of the analog digital converter using mask information regulating a signal level; a timing filter to remove pulses from the level-filtered signal that are beyond a reference duty ratio by using timing information; a pattern filter to remove pulses from the timing-filtered signal that are judged to not comprise a reference number of consecutive pulses by using pattern information; and a duty correction circuit to correct a duty of the pattern-filtered signal to improve performance of the wireless communication device by separately performing a filtering operation on noise and a damping component included in a normal signal.

Abstract translation: 一种用于在无线通信设备中处理模拟数字转换器的输出信号的校准器，所述校准器包括电平滤波器，以使用调节信号电平的掩模信息从模拟数字转换器的输出信号中去除噪声; 定时滤波器，通过使用定时信息从超过参考占空比的电平滤波信号中去除脉冲; 模式滤波器，用于通过使用模式信息来从判定为不包括参考数量的连续脉冲的定时滤波信号中去除脉冲; 以及负责校正电路，用于通过分别执行噪声滤波操作和包括在正常信号中的阻尼分量来校正模式滤波信号的占空比，以提高无线通信装置的性能。