公开(公告)号：US20190239771A1

公开(公告)日：2019-08-08

申请号：US16248582

申请日：2019-01-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Min-Hyung CHO ,  Young-deuk JEON ,  Bon Tae KOO ,  Mun Yang PARK ,  Youngseok BAEK

IPC: A61B5/053 ,  G01N27/02 ,  G01N33/483 ,  A61B5/00

CPC classification number: A61B5/0537 ,  A61B5/4869 ,  A61B5/7278 ,  G01N27/028 ,  G01N33/4833

Abstract: The inventive concept relates to a body composition analysis system. A body composition analysis system according to an embodiment of the inventive concept includes a sinusoidal signal generator, a synchronous detector, and a bioimpedance analyzer. The sinusoidal signal generator converts a digital sinusoidal signal having a target frequency into an analog sinusoidal signal. The synchronous detector extracts a target frequency component of a bioelectrical signal generated in response to an analog sinusoidal signal based on the digital sinusoidal signal. The bioimpedance analyzer calculates the bioimpedance based on the target frequency component of the bioelectrical signal. According to the inventive concept, it is possible to improve the selectivity for extracting the target frequency component of the bioelectrical signal and to reduce the area and variations of characteristics for the implementation of the integrated circuit.

公开(公告)号：US20170285138A1

公开(公告)日：2017-10-05

申请号：US15401909

申请日：2017-01-09

Applicant: Electronics and Telecommunications Research Institute

Inventor： Pil Jae PARK ,  Seong Do KIM ,  Ki Su KIM ,  Mun Yang PARK

IPC: G01S7/282 ,  G01S7/32

CPC classification number: G01S13/10 ,  G01S7/285

Abstract: Disclosed are a pulse radar apparatus and an operating method of the pulse radar apparatus, the pulse radar apparatus including a transmitter configured to receive a reference signal as a transmission clock signal, and transmit a transmission pulse to an object based on the transmission clock signal, a negative feedback loop configured to delay the reference signal and output the delayed reference signal as a reception clock signal, and a receiver configured to restore, based on the reception clock signal, a reflection pulse received in response to the transmission pulse being reflected from the object, wherein the negative feedback loop is configured to generate a delay control signal using the reference signal and a predetermined waveform signal generated by a waveform generator, delay the reference signal based on the delay control signal, and adjust the delay control signal by controlling the waveform generator to change the predetermined waveform signal.