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    • 31. 发明公开
    • 광 수신기
    • 光接收器
    • KR1020080089438A
    • 2008-10-06
    • KR1020087018217
    • 2006-03-03
    • 미쓰비시덴키 가부시키가이샤
    • 노다마사키노가미마사미치나카가와쥰이치
    • H04B10/60H04B10/25
    • H03F3/08H03G3/001H03G3/3084H04B10/6931
    • A light receiver provided with a broad dynamic range characteristic in which different light receiving level packets can be stably reproduced, high speed response, and good same-code-continuation endurance. The light receiver is comprised of a light receiving element (1) for outputting an electric current in accordance with a light receiving level of an optical signal, a preamplifier (2) for converting the electric current output from the light receiving element to a voltage signal, a same-code-continuation detecting circuit (5) for detecting a same-code-continuation portion from a code train of the voltage signal output from the preamplifier and outputting a switching signal of time constants in response to its detecting result, a level detecting circuit (3) for detecting a voltage level of the voltage signal output from the preamplifier in response to the time constant switched and controlled by the switching signal of the time constant, and an amplifier (4) for amplifying an output voltage of the level detecting circuit and supplying the preamplifier with a control voltage to control a gain.
    • 具有宽动态范围特性的光接收器,其中可以稳定地再现不同的光接收电平分组,高速响应和良好的同码继续耐力。 光接收器由用于根据光信号的光接收电平输出电流的光接收元件(1),用于将从光接收元件输出的电流转换为电压信号的前置放大器(2) ,用于从前置放大器输出的电压信号的代码串中检测相同码继续部分并输出响应于其检测结果的时间常数的切换信号的同码继续检测电路(5) 检测电路(3),用于响应于由时间常数的切换信号切换并控制的时间常数来检测从前置放大器输出的电压信号的电压电平;以及放大器(4),用于放大电平的输出电压 检测电路并向前置放大器提供控制电压以控制增益。
    • 32. 发明公开
    • METHOD AND APPARATUS FOR INTEGRATING A QUANTITY OF LIGHT
    • 用于整合光量的方法和装置
    • KR20070101147A
    • 2007-10-16
    • KR20070035027
    • 2007-04-10
    • AVAGO TECH ECBU IP SG PTE LTD
    • MARZUKI ARJUNA BINPANG KWAI LEELIM LEN LI KEVIN
    • G01J1/44G02F1/133G02F1/13357
    • H03F3/08
    • A device for integrating the quantity of light, and a method thereof are provided to decrease response hours and a cost thereof and to integrate an oscillating light source adequately. A device for integrating the quantity of light(100) comprises a photo sensor(102), an integration capacitor(104), a transfer amplifier(106), a first switch(SW1), and a second switch(SW2). The transfer amplifier includes an inlet and an outlet to receive voltage decided by the integration capacitor. The first switch charges the integration capacitor at a pre-charge voltage. The second switch connects the integration capacitor with the photo sensor to discharge the integration capacitor in proportion to the quantity of the light projected on the photo sensor. A method for integrating the quantity of the light includes a step of discharging an electric charge of the integration capacitor in proportion to the quantity of the light projected to the photo sensor, during a pre-charging step and an integrating step; and a step of decoding the voltage decided by the electric charge left at the integration capacitor, after the discharging step.
    • 提供了一种用于整合光量的装置及其方法,以减少响应时间及其成本,并充分地集成振荡光源。 用于积分光量的装置(100)包括光传感器(102),积分电容器(104),传输放大器(106),第一开关(SW1)和第二开关(SW2)。 传输放大器包括用于接收由积分电容器决定的电压的入口和出口。 第一开关以预充电电压对积分电容充电。 第二开关将积分电容器与光电传感器连接,以便与投影在光电传感器上的光量成比例地放大积分电容器。 用于对光量进行积分的方法包括:在预充电步骤和积分步骤期间,与投影到光电传感器的光的量成比例地放大积分电容器的电荷; 以及在放电步骤之后对由积分电容器剩余的电荷决定的电压进行解码的步骤。
    • 38. 发明公开
    • 포톤 계수 유닛, 방사선 촬영 장치 및 포톤 계수 방법
    • 光电计数单元,放射成像装置和控制光电计数单元的方法
    • KR1020140132829A
    • 2014-11-19
    • KR1020130051358
    • 2013-05-07
    • 삼성전자주식회사
    • 이강호김영김진명성영훈
    • G01T1/17A61B6/00
    • H03F3/08
    • 포톤 계수 유닛, 포톤 계수 방법 및 방사선 촬영 장치에 관한 것으로, 포톤 계수 유닛은 입력되는 전기적 신호를 충전하여 상기 입력되는 전기적 신호를 증폭하고 상기 충전된 전기적 신호를 방전하는 증폭부, 상기 증폭부의 전기적 신호의 충전 및 방전을 제어하는 충전 제어부 및 상기 증폭된 전기적 신호의 전압과 임계 전압을 비교하고, 상기 비교 결과에 따라서 방사선 강도를 측정하는 측정부를 포함하되, 상기 충전 제어부는 수신한 피드백 신호에 따라서 상기 증폭부의 전기적 신호의 충전 및 방전을 제어할 수 있다.
    • 本发明涉及光子计数部,射线照相成像装置和光子计数法。 光子计数部包括:放大部,其对输入的电信号进行充电,以放大输入的电信号,并对充电的电信号进行放电; 充电控制部,其控制放大部中的电信号的充放电; 以及测量部分,其将放大的电信号的电压与阈值电压进行比较,并根据比较结果测量辐射强度。 充电控制部分可以控制放大部分中的电信号的充电和放电。