公开(公告)号：KR1020130124140A

公开(公告)日：2013-11-13

申请号：KR1020120133757

申请日：2012-11-23

Applicant: 서강대학교산학협력단

Inventor： 최용 ,  강지훈 ,  김규범

IPC: H03F1/32 ,  H03M1/12 ,  A61B5/055

CPC classification number: G01R33/481 ,  G01T1/1603

Abstract: The present invention relates to an analog signal correcting circuit. The invention includes an OP amplifier, a voltage restoring part inputting an input voltage to an input terminal of the amplifier, an increasing time restoring part connected with the other input terminal of the amplifier, and a decreasing time restoring part connected with an output terminal of the amplifier. As an output signal distortion phenomenon according to a cable length is corrected into an original signal by using the analog signal correcting circuit, the performance degradation of both a PET detector in a PET-MRI fusion system and a medical image device transmitting an analog signal by using a cable is improved. [Reference numerals] (C1) Input resistance;(C2) Low pass filter capacity;(R1) High pass filter capacity;(R2) Feedback resistance;(R3) High pass filter capacity;(R4) Amplifying stage resistance;(R5) Low pass filter resistance;(R6) Output resistance

Abstract translation: 本发明涉及一种模拟信号校正电路。 本发明包括OP放大器，向放大器的输入端输入输入电压的电压恢复部，与放大器的另一个输入端连接的增加时间恢复部，以及与放大器的输出端连接的减少时间恢复部 放大器。 由于通过使用模拟信号校正电路将根据电缆长度的输出信号失真现象校正为原始信号，PET-MRI融合系统中的PET检测器和通过以下方式传输模拟信号的医学图像设备的性能下降 使用电缆改善了。 （C1）输入电阻;（C2）低通滤波器容量;（R1）高通滤波器容量;（R2）反馈电阻;（R3）高通滤波器容量;（R4）放大级电阻;（R5） 低通滤波电阻;（R6）输出电阻

公开(公告)号：KR1020180092210A

公开(公告)日：2018-08-17

申请号：KR1020170017695

申请日：2017-02-08

Applicant: 서강대학교산학협력단

Inventor： 김규범 ,  최용 ,  임현태 ,  김연경

IPC: G01T1/164 ,  A61B6/00

Abstract: 본발명은방사선영상을처리하는멀티플렉싱신호처리장치에대한것으로서, 본발명에따른멀티플렉싱신호처리장치는, 방사선을섬광신호로변환하는섬광체유닛에서출력된섬광신호를전기신호로변환하는복수의광센서가격자형태로배치된광센서어레이를포함하는광 검출기; 광센서어레이의각 행(row)을구성하는복수의광센서의출력신호를디지털신호로변환하는복수의비교기를포함하는제1 비교기그룹, 광센서어레이의각 열(column)을구성하는복수의광센서의출력신호를디지털신호로변환하는복수의비교기를포함하는제2 비교기그룹, 및제2 비교기그룹에포함된각 비교기의출력신호를기 결정된지연시간으로지연시키는복수의지연소자를포함하는지연소자그룹을포함하는아날로그신호처리및 비교기; 및제1 비교기그룹에포함된각 비교기의출력신호및 지연소자그룹에포함된각 지연소자의출력신호를기초로, 방사선의반응위치, 반응시간및 반응에너지크기중 적어도하나를결정하는디지털신호처리기를포함한다.

公开(公告)号：KR101815290B1

公开(公告)日：2018-01-11

申请号：KR1020160150984

申请日：2016-11-14

Applicant: 서강대학교산학협력단

Inventor： 김규범 ,  최용 ,  김연경 ,  임현태

IPC: A61B6/00

CPC classification number: A61B6/4208

Abstract: 본발명은방사선영상을처리하는멀티플렉싱신호처리장치에대한것으로서, 방사선을섬광신호로변환하는섬광체유닛에서출력된섬광신호를전기신호로변환하는복수의포토다이오드를포함하는광 검출기, 상기각 광센서에결합되며, 각광센서의출력신호를양극성펄스로변환하는복수의신호변환부를포함한다. 이때, 각신호변환부가출력하는상기양극성펄스의펄스폭또는영점교차위치는서로상이한것이다.