公开(公告)号：US08525433B2

公开(公告)日：2013-09-03

申请号：US12825635

申请日：2010-06-29

Applicant: Dong-Hun Lee ,  Kyung-Goo Lee ,  Hong-Gyu Han ,  Jung-Won Kim ,  Dong-Hee Kim

Inventor： Dong-Hun Lee ,  Kyung-Goo Lee ,  Hong-Gyu Han ,  Jung-Won Kim ,  Dong-Hee Kim

IPC: H05B37/02

CPC classification number: H05B33/0815 ,  H05B33/0827 ,  Y02B20/347

Abstract: An LED light emitting device and a method of driving the same are provided, and technology that can uniformly sustain the magnitude of a channel current flowing to a plurality of LED channels is disclosed. The LED light emitting device includes: a plurality of LED channels that are formed with a plurality of LED elements that are continuously connected in series; and a constant current source that controls each channel current flowing to the plurality of LED channels according to a predetermined channel reference current to be a predetermined setting channel current, wherein the constant current source includes a plurality of operating amplifiers that control the magnitude of each of the channel currents, and a feedback voltage generating according to a predetermined offset reference current is input to a second input terminal of an operating amplifier for an offset setting period that sets an offset voltage of the plurality of operating amplifiers, a reference voltage generating according to a channel reference current is input to a first input terminal of the operating amplifier, and an offset voltage of each of the plurality of operating amplifiers is set so that an actual channel current may be identical to a predetermined setting channel current.

Abstract translation: 提供了一种LED发光器件及其驱动方法，并且公开了能够均匀地维持流向多个LED通道的沟道电流的大小的技术。 LED发光装置包括：多个LED通道，其形成有连续串联连接的多个LED元件; 以及恒定电流源，其根据预定的通道参考电流来控制流向所述多个LED通道的每个通道电流为预定设定通道电流，其中所述恒流源包括多个运算放大器，所述多个运算放大器控制每个 根据预定的偏移参考电流产生的通道电流和反馈电压被输入到运算放大器的第二输入端，用于设置多个运算放大器的偏移电压的偏移设置周期，根据 通道参考电流被输入到运算放大器的第一输入端，并且设置多个运算放大器中的每一个的偏移电压，使得实际的通道电流可以与预定的设定通道电流相同。

公开(公告)号：US08518593B2

公开(公告)日：2013-08-27

申请号：US12795176

申请日：2010-06-07

Applicant: Dong Hun Lee ,  Seo Ho Choi ,  Sun Soon Park ,  Myoung Ho Sunwoo ,  Jung Hwan Ryu ,  Keon Yup Chu ,  Ki Chun Jo

Inventor： Dong Hun Lee ,  Seo Ho Choi ,  Sun Soon Park ,  Myoung Ho Sunwoo ,  Jung Hwan Ryu ,  Keon Yup Chu ,  Ki Chun Jo

IPC: H01M8/04 ,  H01M8/06

CPC classification number: H01M8/04029 ,  H01M8/04268 ,  H01M8/0432 ,  H01M8/04768

Abstract: The present invention provides a method for controlling the operation of a fuel cell system at low temperature that can suitably prevent flooding in a cathode of a fuel cell stack during low-temperature operation, thus improving the operation stability and durability of the fuel cell stack. In preferred embodiments, the present invention provides a method for controlling the operation of a fuel cell system at low temperature, the method comprising determining whether the temperature of a fuel cell stack reaches a normal temperature; calculating, when it is determined that the temperature of the fuel cell stack is lower than the normal temperature, a target temperature at a cathode outlet to maintain water present in a cathode of the fuel cell stack in a vapor phase based on information related to an operation state of the fuel cell stack detected by an operation state detection means; and calculating a target amount of coolant based on the calculated target temperature at the cathode outlet and the information related to the operation state of the fuel cell stack, and controlling the amount of coolant supplied to the fuel cell stack based on the calculated target amount of coolant.

Abstract translation: 本发明提供一种用于控制低温下的燃料电池系统的操作的方法，其可以在低温操作期间适当地防止燃料电池堆的阴极中的溢流，从而提高燃料电池堆的操作稳定性和耐久性。 在优选实施例中，本发明提供一种控制燃料电池系统在低温下运行的方法，该方法包括确定燃料电池堆的温度是否达到常温; 当确定燃料电池堆的温度低于正常温度时，计算出阴极出口处的目标温度，以维持燃料电池堆的阴极中存在于气相中的水，基于与 由操作状态检测装置检测的燃料电池堆的操作状态; 基于计算出的阴极出口的目标温度和与燃料电池堆的运转状态有关的信息，计算出目标冷量的量，根据计算出的燃料电池堆的计算出的目标量， 冷却液

公开(公告)号：US08514306B2

公开(公告)日：2013-08-20

申请号：US12801999

申请日：2010-07-07

Applicant: Wun-Ki Jung ,  Seog Heon Ham ,  Dong Hun Lee ,  Kwi Sung Yoo ,  Min Ho Kwon

Inventor： Wun-Ki Jung ,  Seog Heon Ham ,  Dong Hun Lee ,  Kwi Sung Yoo ,  Min Ho Kwon

IPC: H04N5/20

CPC classification number: H04N5/3575 ,  H04N5/374 ,  H04N5/378

Abstract: A correlated double sampling (CDS) circuit is provided. The CDS circuit is configured to perform a CDS on a reset signal and an image signal during a CDS phase respectively. The CDS circuit includes a sampling circuit configured to output a difference between a correlated double sampled reset signal and a correlated double sampled image signal, and a feedback unit configured to feedback the difference output from the sampling circuit during a PGA phase to an input of the sampling circuit.

Abstract translation: 提供了相关的双重采样（CDS）电路。 CDS电路被配置为在CDS阶段期间在复位信号和图像信号上执行CDS。 CDS电路包括：采样电路，被配置为输出相关的双采样复位信号和相关的双采样图像信号之间的差;以及反馈单元，被配置为将在PGA阶段期间从采样电路输出的差值反馈到 采样电路。

公开(公告)号：US20130169733A1

公开(公告)日：2013-07-04

申请号：US13571962

申请日：2012-08-10

Applicant: Uk JANG ,  Hyun Jin LEE ,  Sang Kwon KIM ,  Cho Rong YU ,  Dong Hun LEE ,  Kee Seong CHO

Inventor： Uk JANG ,  Hyun Jin LEE ,  Sang Kwon KIM ,  Cho Rong YU ,  Dong Hun LEE ,  Kee Seong CHO

IPC: H04N7/14

CPC classification number: H04N7/15 ,  H04L12/1822 ,  H04N21/26275 ,  H04N21/47202 ,  H04N21/6125 ,  H04N21/6405

Abstract: Disclosed are an apparatus and a method for providing an API for sharing contents which provides the API including a function capable of sharing contents during a video call or video conference in a platform including an open web service gateway by using functions provided from the open web service gateway. The apparatus for providing an API for sharing contents during video communication in a platform including an open web service gateway includes: a video communication control unit configured to acquire connection state information of terminals receiving a video communication request; and a contents sharing control unit configured to receive the connection state information of the terminals from the video communication control unit and process a contents sharing request.

Abstract translation: 公开了一种用于提供用于共享内容的API的装置和方法，其提供包括能够在包括开放web服务网关的平台的视频通话或视频会议期间共享内容的功能的API，所述平台通过使用从开放web服务提供的功能 网关 在包括开放web服务网关的平台中提供用于在视频通信期间共享内容的API的装置包括：视频通信控制单元，被配置为获取接收视频通信请求的终端的连接状态信息; 以及内容共享控制单元，被配置为从视频通信控制单元接收终端的连接状态信息，并处理内容共享请求。

公开(公告)号：US20130148975A1

公开(公告)日：2013-06-13

申请号：US13585537

申请日：2012-08-14

Applicant: Oh Kee KWON ,  Young-Tak Han ,  Chul-Wook Lee ,  Dong-Hun Lee ,  Young Ahn Leem ,  Jang Uk Shin ,  Sang Ho Park ,  Yun C. Chung ,  Yongsoon Baek

Inventor： Oh Kee KWON ,  Young-Tak Han ,  Chul-Wook Lee ,  Dong-Hun Lee ,  Young Ahn Leem ,  Jang Uk Shin ,  Sang Ho Park ,  Yun C. Chung ,  Yongsoon Baek

IPC: H04B10/14

CPC classification number: H04B10/506 ,  H04B10/2575

Abstract: Provided is a multichannel transmitter optical module which includes a plurality of light source units configured to generate light, a plurality of an electro-absorption modulators (EAMs) configured to modulate the generated light to an optical signal through a radio frequency (RF) signal, a plurality of RF transmission lines configured to apply the RF signal to the EAMs, and a combiner configured to combine the modulated optical signal. The RF transmission lines are connected to the EAMs in a traveling wave (TW) electrode manner. The multichannel transmitter optical module has alleviated crosstalk and is compactly integrated to have a small size.

Abstract translation: 提供了一种多通道发射器光学模块，其包括被配置为产生光的多个光源单元，多个电吸收调制器（EAM），其被配置为通过射频（RF）信号将生成的光调制到光信号， 配置为将RF信号施加到EAM的多个RF传输线，以及被配置为组合调制的光信号的组合器。 RF传输线以行波（TW）电极的方式连接到EAM。 多通道发射机光模块减轻了串扰并且紧凑地集成以具有小尺寸。

公开(公告)号：US20130095586A1

公开(公告)日：2013-04-18

申请号：US13408433

申请日：2012-02-29

Applicant: Eui-seok KIM ,  Won-soo JI ,  Choo-ho KIM ,  Shin-min RHEE ,  Dong-hun LEE ,  Hee-young JUN

Inventor： Eui-seok KIM ,  Won-soo JI ,  Choo-ho KIM ,  Shin-min RHEE ,  Dong-hun LEE ,  Hee-young JUN

IPC: H01L21/78

CPC classification number: B23K26/40 ,  B23K26/0093 ,  B23K2101/36 ,  B23K2103/172 ,  B23K2103/52 ,  H01L33/0095 ,  H01L2224/48091 ,  H01L2924/12044 ,  H01L2933/0033 ,  H01L2924/00014 ,  H01L2924/00

Abstract: A method of cutting light emitting element packages includes preparing a ceramic substrate having a surface on which a plurality of light emitting element chips are mounted and a light-transmitting material layer is formed to cover the plurality of light emitting element chips; partially removing the light-transmitting material layer between the plurality of light emitting element chips along a cutting line by using a mechanical cutting method; and separating individual light emitting element packages by cutting the ceramic substrate along the cutting line by using a laser cutting method.

Abstract translation: 切割发光元件封装的方法包括制备具有其上安装有多个发光元件芯片的表面的陶瓷基板，并且形成透光材料层以覆盖多个发光元件芯片; 通过使用机械切割方法沿切割线部分去除多个发光元件芯片之间的透光材料层; 以及通过使用激光切割方法沿着切割线切割陶瓷基板来分离各个发光元件封装。

公开(公告)号：US20130003771A1

公开(公告)日：2013-01-03

申请号：US13482247

申请日：2012-05-29

Applicant: Oh Kee KWON ,  Young Ahn Leem ,  Dong-Hun Lee ,  Chul-Wook Lee ,  Yongsoon Baek ,  Yun C. Chung

Inventor： Oh Kee KWON ,  Young Ahn Leem ,  Dong-Hun Lee ,  Chul-Wook Lee ,  Yongsoon Baek ,  Yun C. Chung

IPC: H01S5/187 ,  H01L21/02

CPC classification number: H01S5/124 ,  H01S5/1003 ,  H01S5/2077 ,  H01S2301/163

Abstract: Provided are a distributed feedback laser diode and a manufacturing method thereof. The distributed feedback laser diode includes a first area having a first grating layer disposed in a longitudinal direction, a second area disposed adjacent to the first area and having a second grating layer disposed in the longitudinal direction, and an active layer disposed over the first and second areas. Coupling coefficients of the first and second grating layers are made different in the first and second areas by a selective area growth method. The distributed feedback laser diode includes grating layers each having an asymmetric coefficient and is implemented within an optimal range capable of obtaining both a high front facet output and stable single mode characteristics. Thus, high manufacturing yield and low manufacturing cost can be achieved.

Abstract translation: 提供一种分布式反馈激光二极管及其制造方法。 分布式反馈激光二极管包括具有沿纵向设置的第一光栅层的第一区域，与第一区域相邻设置的第二区域，并且具有沿纵向方向设置的第二光栅层，以及有源层，设置在第一和 第二区。 第一和第二光栅层的耦合系数通过选择性区域生长方法在第一和第二区域中不同。 分布式反馈激光二极管包括各自具有不对称系数的光栅层，并且实现在能够获得高前端面输出和稳定单模特性的最佳范围内。 因此，可以实现高制造成品率和低制造成本。

公开(公告)号：US08342436B2

公开(公告)日：2013-01-01

申请号：US13466737

申请日：2012-05-08

Applicant: Sang Gu Sim ,  Dong Hun Lee ,  Sang Jun Jee

Inventor： Sang Gu Sim ,  Dong Hun Lee ,  Sang Jun Jee

IPC: B02C19/22

CPC classification number: E03C1/266 ,  B02C18/0084 ,  B02C19/22

Abstract: The present invention provides a pulverizing screw, a pulverizing casing and a pulverizer having the same. The pulverizing screw includes a rotating shaft and a drive blade which extends from the rotating shaft in a spiral shape. The drive blade rotates in the pulverizing casing in such a manner as to maintain a predetermined distance between the drive blade and the inner surface of the pulverizing casing to prevent the drive blade from being impeded by the inner surface of the pulverizing casing. The drive blade extends from a first end of the rotating shaft in a spiral shape surrounding the rotating shaft in a clockwise or counterclockwise direction and is connected to a second end of the rotating shaft. The pulverizing casing comprises a spherical body having a space therein. The pulverizing screw is installed in the spherical body so as to be rotatable.

Abstract translation: 本发明提供一种粉碎螺杆，粉碎壳体和具有该粉碎机的粉碎机。 粉碎螺杆包括旋转轴和从旋转轴以螺旋形状延伸的驱动叶片。 驱动叶片在粉碎壳体中以驱动叶片和粉碎壳体的内表面之间保持预定距离的方式旋转，以防止驱动叶片被粉碎壳体的内表面阻碍。 驱动叶片从旋转轴的第一端以顺时针或逆时针方向以旋转轴为中心的螺旋形状延伸并连接到旋转轴的第二端。 粉碎壳体包括其中具有空间的球体。 粉碎螺杆安装在球形体中以便可旋转。

公开(公告)号：US20120288434A1

公开(公告)日：2012-11-15

申请号：US13461241

申请日：2012-05-01

Applicant: Kap-Seung YANG ,  Sung-Ho LEE ,  Hyang-Hoon CHAE ,  Dong-Hun LEE

Inventor： Kap-Seung YANG ,  Sung-Ho LEE ,  Hyang-Hoon CHAE ,  Dong-Hun LEE

IPC: C01B31/02 ,  C08L33/20

CPC classification number: D01F9/225 ,  C08L33/18 ,  C08L2203/12

Abstract: Disclosed therein is a method for preparing a polyacrylonitrile-based polymer for preparation of carbon fiber having a melting point controlled by selecting an optimal energy of microwave, and a method for preparing a carbon fiber through melt spinning using the preparation method for polyacrylonitrile-based polymer. The present invention uses microwave to control the properties of the polyacrylonitrile-based polymer in a simplified way and prepare the polymer optimized for preparation of carbon fiber precursor through melt spinning for a short polymerization time, and provides a means for mass production of the polyacrylonitrile-based polymer being suitable for melt spinning at a temperature lower than the stabilization temperature and acquiring properties adequate to preparation of carbon fiber through stabilization. Hence, the present invention is expected to contribute to mass production of high-performance carbon fibers at reduced cost.

Abstract translation: 其中公开了一种制备通过选择微波最佳能量来控制熔点的碳纤维的聚丙烯腈系聚合物的制造方法以及使用聚丙烯腈类聚合物的制备方法通过熔融纺丝制备碳纤维的方法 。 本发明使用微波以简单的方式控制聚丙烯腈类聚合物的性能，并通过熔融纺丝制备优化用于制备碳纤维前体的聚合物，聚合时间短，并提供了用于大量生产聚丙烯腈 - 基于聚合物适合于在低于稳定温度的温度下熔融纺丝，并通过稳定性获得足以制备碳纤维的性能。 因此，本发明预期有助于以低成本大量生产高性能碳纤维。

公开(公告)号：US20120176501A1

公开(公告)日：2012-07-12

申请号：US13348044

申请日：2012-01-11

Applicant: Kwi Sung Yoo ,  Min Ho Kwon ,  Wun-Ki Jung ,  Jin Ho Seo ,  Dong Hun Lee ,  Seung Hyun Lim ,  Jae Hong Kim

Inventor： Kwi Sung Yoo ,  Min Ho Kwon ,  Wun-Ki Jung ,  Jin Ho Seo ,  Dong Hun Lee ,  Seung Hyun Lim ,  Jae Hong Kim

IPC: H04N5/225 ,  H04N5/335 ,  H03M1/12

CPC classification number: H03M1/164 ,  H03M1/50 ,  H03M3/424 ,  H03M3/456 ,  H03M3/458 ,  H04N5/378

Abstract: An image sensor includes a pixel array including a plurality of pixels which are arranged in a matrix of a plurality of rows and columns and each of the plurality of pixels being configured to convert intensity of incident light into an electrical image signal; and an extended counting analog-to-digital converter configured to perform a first analog-to-digital conversion to provide a digital signal from an output signal of the pixel array, to obtain a residue using the output signal of the pixel array and the digital signal, and to perform a second analog-to-digital conversion using the residue.

Abstract translation: 图像传感器包括：像素阵列，其包括以多个行和列的矩阵排列的多个像素，并且所述多个像素中的每一个被配置为将入射光的强度转换为电图像信号; 以及扩展计数模数转换器，其被配置为执行第一模数转换以从所述像素阵列的输出信号提供数字信号，以使用所述像素阵列的输出信号和所述数字 信号，并且使用残留物进行第二模拟 - 数字转换。