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    Linear amplifier
    3.
    发明授权
    Linear amplifier 有权
    线性放大器

    公开(公告)号：US08564369B2

    公开(公告)日：2013-10-22

    申请号：US13312288

    申请日：2011-12-06

    申请人： Yu Sin Kim ,  Youn Suk Kim ,  Gyu Hyeong Cho ,  Chang Seok Chae ,  Young Sub Yuk

    发明人： Yu Sin Kim ,  Youn Suk Kim ,  Gyu Hyeong Cho ,  Chang Seok Chae ,  Young Sub Yuk

    IPC分类号： H03F1/30

    CPC分类号： H03F3/193 ,  H03F1/301 ,  H03F1/342 ,  H03F3/345 ,  H03F3/505 ,  H03F2200/36

    摘要： There is provided a linear amplifier capable of suppressing a reduction in bandwidth and reducing a ripple voltage by using a source follower and a local feedback loop. The linear amplifier includes an amplifier amplifying an input signal according to a difference in signal level between the input signal and a feedback signal, and a buffer buffering a signal amplified in the amplifier by a source follow method, suppressing a reduction in bandwidth of the signal, outputting the signal, and providing the bufferred signal to the amplifier as the feedback signal.

    摘要翻译： 提供一种线性放大器，其能够通过使用源极跟随器和局部反馈回路来抑制带宽的减小并降低纹波电压。 线性放大器包括放大器，根据输入信号和反馈信号之间的信号电平差，放大输入信号;以及缓冲器，通过源跟踪方法缓冲放大器中放大的信号，抑制信号带宽的减小 输出信号，并将缓冲信号提供给放大器作为反馈信号。

    APPARATUS AND METHOD FOR DISTINGUISHING ENERGY BANDS OF PHOTONS IN MULTI-ENERGY RADIATION
    4.
    发明申请
    APPARATUS AND METHOD FOR DISTINGUISHING ENERGY BANDS OF PHOTONS IN MULTI-ENERGY RADIATION 有权
    用于评估多能量辐射中光子能量的装置和方法

    公开(公告)号：US20130041628A1

    公开(公告)日：2013-02-14

    申请号：US13561503

    申请日：2012-07-30

    申请人： Sang-wook Han ,  Hyun-sik Kim ,  Jun-hyeok Yang ,  Gyu-hyeong Cho ,  Young-hun Sung

    发明人： Sang-wook Han ,  Hyun-sik Kim ,  Jun-hyeok Yang ,  Gyu-hyeong Cho ,  Young-hun Sung

    IPC分类号： G06F15/00

    CPC分类号： G01T1/17 ,  A61B6/032 ,  A61B6/4241 ,  G01T1/16 ,  G01T1/246 ,  G01T1/247 ,  G01T1/2928 ,  G01T1/36

    摘要： An apparatus for distinguishing an energy band of a photon in a readout circuit that counts photons in multi-energy radiation incident onto a sensor for each energy band includes an integrator configured to accumulate an electric signal received from the sensor that has undergone photoelectric conversion from the photon; a comparator configured to compare an accumulated electric signal received from the integrator with one of a plurality of threshold values; and a signal processor configured to instruct sequential switching from one of the plurality of threshold values to another one of the plurality of threshold values according to a result of a comparison received from the comparator; and output a digital signal that distinguishes an energy band of the photon based on results received from the comparator of sequential comparisons of the accumulated electric signal with the plurality of threshold values.

    摘要翻译： 用于区分在每个能带上入射到传感器上的多能量辐射中计数光子的读出电路中的光子能带的装置包括积分器，其被配置为累积从已经经历光电转换的传感器接收的电信号 光子 比较器，用于将从积分器接收的累积电信号与多个阈值中的一个进行比较; 以及信号处理器，被配置为根据从所述比较器接收的比较结果，指示从所述多个阈值中的一个到所述多个阈值中的一个阈值的顺序切换; 并输出基于从累积电信号与多个阈值的顺序比较的比较器接收的结果来区分光子的能带的数字信号。

    LINEAR AMPLIFIER
    5.
    发明申请
    LINEAR AMPLIFIER 有权
    线性放大器

    公开(公告)号：US20120139637A1

    公开(公告)日：2012-06-07

    申请号：US13312288

    申请日：2011-12-06

    申请人： Yu Sin KIM ,  Youn Suk Kim ,  Gyu Hyeong Cho ,  Chang Seok Chae ,  Young Sub Yuk

    发明人： Yu Sin KIM ,  Youn Suk Kim ,  Gyu Hyeong Cho ,  Chang Seok Chae ,  Young Sub Yuk

    IPC分类号： H03F1/22 ,  H03F1/34

    CPC分类号： H03F3/193 ,  H03F1/301 ,  H03F1/342 ,  H03F3/345 ,  H03F3/505 ,  H03F2200/36

    摘要： There is provided a linear amplifier capable of suppressing a reduction in bandwidth and reducing a ripple voltage by using a source follower and a local feedback loop. The linear amplifier includes an amplifier amplifying an input signal according to a difference in signal level between the input signal and a feedback signal, and a buffer buffering a signal amplified in the amplifier by a source follow method, suppressing a reduction in bandwidth of the signal, outputting the signal, and providing the buffered signal to the amplifier as the feedback signal.

    摘要翻译： 提供一种线性放大器，其能够通过使用源极跟随器和局部反馈回路来抑制带宽的减小并降低纹波电压。 线性放大器包括放大器，根据输入信号和反馈信号之间的信号电平差，放大输入信号;以及缓冲器，通过源跟踪方法缓冲放大器中放大的信号，抑制信号带宽的减小 输出该信号，并将缓冲的信号提供给放大器作为反馈信号。

    ACTIVE MATRIX ORGANIC LIGHT EMITTING DIODE DISPLAY HAVING DETERIORATION DETECTION FUNCTION IN PROGRAMMING PERIOD
    6.
    发明申请
    ACTIVE MATRIX ORGANIC LIGHT EMITTING DIODE DISPLAY HAVING DETERIORATION DETECTION FUNCTION IN PROGRAMMING PERIOD 审中-公开
    有源矩阵有机发光二极管显示器在编程期间具有检测功能

    公开(公告)号：US20120044271A1

    公开(公告)日：2012-02-23

    申请号：US13115403

    申请日：2011-05-25

    申请人： Yeun Joong LEE ,  Sang Hyun CHA ,  Gyu Hyeong CHO ,  Jin Yong JEON ,  Jun Hyeok YANG ,  Hyun Sik KIM ,  Jae Shin LEE

    发明人： Yeun Joong LEE ,  Sang Hyun CHA ,  Gyu Hyeong CHO ,  Jin Yong JEON ,  Jun Hyeok YANG ,  Hyun Sik KIM ,  Jae Shin LEE

    IPC分类号： G09G3/32 ,  G09G5/10

    CPC分类号： G09G3/3233 ,  G09G3/3291 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2320/0295 ,  G09G2320/043

    摘要： There is provided an active matrix organic light emitting diode display including: a data driving unit converting previously prepared correction data into a correction signal and generates a driving signal according to the analog correction signal; a pixel unit having an organic light emitting diode (OLED) between first and second power supply terminals receiving first and second powers, respectively, charging a value corresponding to the correction data according to the driving signal in a predetermined programming period, detecting the driving signal in order to detect deterioration, and allowing current to flow through the OLED according to the value charged in the predetermined programming period in a predetermined holding period; and an ADC detecting deterioration voltage corresponding to the driving signal having deterioration information of the OLED of the pixel unit in the holding period.

    摘要翻译： 提供了一种有源矩阵有机发光二极管显示器，包括：数据驱动单元，将预先准备的校正数据转换为校正信号，并根据模拟校正信号产生驱动信号; 在第一和第二电源端子之间分别接收第一和第二功率的有机发光二极管（OLED）的像素单元，分别在预定编程周期内根据驱动信号对与校正数据相对应的值进行充电，检测驱动信号 以便检测劣化，并允许电流在预定的保持期内根据在预定编程周期内充电的值流过OLED; 以及在保持期间，检测与具有像素单元的OLED的劣化信息的驱动信号相对应的劣化电压的ADC。

    Active matrix OLED driving circuit using current feedback
    7.
    发明授权
    Active matrix OLED driving circuit using current feedback 失效
    有源矩阵OLED驱动电路采用电流反馈

    公开(公告)号：US07876292B2

    公开(公告)日：2011-01-25

    申请号：US11543588

    申请日：2006-10-04

    申请人： Gyu-hyeong Cho ,  Jin-yong Jeon ,  Gun-ho Lee ,  Young-suk Son ,  Sang Kyung Kim

    发明人： Gyu-hyeong Cho ,  Jin-yong Jeon ,  Gun-ho Lee ,  Young-suk Son ,  Sang Kyung Kim

    IPC分类号： G09G3/36

    CPC分类号： G09G3/3233 ,  G09G2300/0842 ,  G09G2320/0233 ,  G09G2320/0252 ,  G09G2320/0295 ,  G09G2320/043

    摘要： An active matrix organic light emitting diode AMOLED driving circuit using current feedback that ensures the uniformity of brightness in pixels of a flat panel display and shortens the time required to input accurate current to respective pixels in the driving circuit.The prevent invention provides an AMOLED driving circuit using current feedback, comprising: a current digital-to-analog converter outputting a current corresponding to input digital data; a first differential amplifier connected to the current digital-to-analog converter and controlling the input data current and a driving current of a driving transistor of a pixel circuit to be identical to each other; a current mirror mirroring driving current of an organic light emitting diode of the pixel circuit to an input side of the first differential amplifier; and a second differential amplifier coupled to the current mirror and controlling charge and discharge speeds of parasitic capacitance of the pixel circuit.

    摘要翻译： 使用电流反馈的有源矩阵有机发光二极管AMOLED驱动电路，其确保平板显示器的像素中亮度的均匀性，并缩短将精确电流输入到驱动电路中的各个像素所需的时间。 本发明提供一种使用电流反馈的AMOLED驱动电路，包括：输出与输入数字数据相对应的电流的当前数模转换器; 连接到当前数模转换器并控制像素电路的驱动晶体管的输入数据电流和驱动电流彼此相同的第一差分放大器; 将像素电路的有机发光二极管的驱动电流的电流镜反射到第一差分放大器的输入侧; 以及耦合到电流镜并且控制像素电路的寄生电容的充电和放电速度的第二差分放大器。

    Discharge lamp driving circuit and method of driving a discharge lamp
    9.
    发明授权
    Discharge lamp driving circuit and method of driving a discharge lamp 有权
    放电灯驱动电路和驱动放电灯的方法

    公开(公告)号：US07414373B2

    公开(公告)日：2008-08-19

    申请号：US11760062

    申请日：2007-06-08

    申请人： Gyu-Hyeong Cho ,  Sang-Kyung Kim ,  Hee-Seok Han

    发明人： Gyu-Hyeong Cho ,  Sang-Kyung Kim ,  Hee-Seok Han

    IPC分类号： G05F1/00

    CPC分类号： H05B41/2824 ,  H05B41/2822 ,  H05B41/3921 ,  Y10S315/07

    摘要： A discharge lamp driving circuit includes an inverter, a ballast capacitor, a discharge lamp, and a lamp current detecting circuit. The inverter converts a DC voltage into an AC voltage with high frequency to output the AC voltage to an output port based on a pulse width modulation control signal. The lamp current detecting circuit outputs a first voltage signal and a second voltage signal according to a voltage across the ballast capacitor to generate a lamp current sensing voltage that is proportional to a lamp current flowing through the discharge lamp. The pulse width modulation control signal has a width varying with amplitude of the lamp current so that the lamp current may be accurately detected.

    摘要翻译： 放电灯驱动电路包括逆变器，镇流电容器，放电灯和灯电流检测电路。 逆变器将直流电压转换为高频的交流电压，以将脉冲宽度调制控制信号的交流电压输出到输出端口。 灯电流检测电路根据镇流电容器两端的电压输出第一电压信号和第二电压信号，以产生与流过放电灯的灯电流成比例的灯电流检测电压。 脉冲宽度调制控制信号的宽度随着灯电流的振幅而变化，从而可以准确地检测灯电流。

    Divide-add circuit and high-resolution digital-to-analog converter using the same
    10.
    发明授权
    Divide-add circuit and high-resolution digital-to-analog converter using the same 有权
    分频电路和高分辨率数模转换器使用相同

    公开(公告)号：US07283077B2

    公开(公告)日：2007-10-16

    申请号：US11398868

    申请日：2006-04-06

    申请人： Gyu-Hyeong Cho ,  Sang-Kyung Kim ,  Young-Suk Son

    发明人： Gyu-Hyeong Cho ,  Sang-Kyung Kim ,  Young-Suk Son

    IPC分类号： H03M1/66

    CPC分类号： H03M1/682 ,  H03M1/667

    摘要： Disclosed herein is a divide-add circuit and a high-resolution Digital-to-Analog Converter (DAC) using the same. The DAC includes a plurality of DAC units and one or more divide-add circuit units. The plurality of DAC units performs Digital-Analog (DA) conversion on two or more segmented codes, into which an input digital code is segmented. The one or more divide-add circuit units is configured to be each composed only of capacitors and switches and to generate a final DA conversion output for the entire input digital code based on the voltages of the DAC units. Accordingly, a high resolution of more than ten bits can be implemented.

    摘要翻译： 这里公开了一种除法电路和使用其的高分辨率数模转换器（DAC）。 DAC包括多个DAC单元和一个或多个除法电路单元。 多个DAC单元对两个或多个分段代码执行数字模拟（DA）转换，输入数字代码被分段到其中。 一个或多个除法电路单元被配置为仅由电容器和开关组成，并且基于DAC单元的电压产生用于整个输入数字代码的最终DA转换输出。 因此，可以实现超过十位的高分辨率。