公开(公告)号：US08106712B2

公开(公告)日：2012-01-31

申请号：US12623136

申请日：2009-11-20

Applicant: Dong Ho Lee ,  Kyu Hwan An ,  Chang-Ho Lee ,  Joy Laskar

Inventor： Dong Ho Lee ,  Kyu Hwan An ,  Chang-Ho Lee ,  Joy Laskar

IPC: H03F3/04

CPC classification number: H03F1/3205 ,  H03F1/0261 ,  H03F1/223 ,  H03F3/45475 ,  H03F2200/18

Abstract: Systems and methods for providing a self-mixing adaptive bias circuit that may include a mixer, low-pass filter or a phase shifter, and a bias feeding block. The self-mixing adaptive bias circuit may generate an adaptive bias signal depending on input signal power level. As the input power level goes up, the adaptive bias circuit increases the bias voltage or bias current such that the amplifier will save current consumption at low power operation levels and obtain better linearity at high power operation levels compared to conventional biasing techniques. Moreover, the adaptive bias output signal can be used to cancel the third-order intermodulation terms (IM3) to further enhance the linearity as a secondary effect.

Abstract translation: 用于提供可以包括混频器，低通滤波器或移相器的自混合自适应偏置电路的系统和方法以及偏置馈电块。 自混合自适应偏置电路可以根据输入信号功率电平产生自适应偏置信号。 随着输入功率电平上升，自适应偏置电路增加了偏置电压或偏置电流，使得放大器可以在低功率运行电平下节省电流消耗，并且与常规偏置技术相比，在高功率运行电平下获得更好的线性度。 此外，自适应偏置输出信号可以用于消除三阶互调项（IM3），以进一步增强作为次级效应的线性。

公开(公告)号：US20110285481A1

公开(公告)日：2011-11-24

申请号：US12784723

申请日：2010-05-21

Applicant: Yanyu Huang ,  Wangmyong Woo ,  Chang-Ho Lee ,  Joy Laskar

Inventor： Yanyu Huang ,  Wangmyong Woo ,  Chang-Ho Lee ,  Joy Laskar

IPC: H01P1/22

CPC classification number: H01P1/22 ,  H03G1/007 ,  H03H11/245

Abstract: Systems and methods for provided for linearization systems and methods for variable attenuators. The variable attenuators can include series transistors along a main signal path from the input to output, as well as shunt transistors. A bootstrapping body bias circuit can be used with one or of the series transistors to allow the body of a connected transistor to swing responsive to a received RF input signal. As the RF signal increases and affects the gate-to-source voltage difference of a transistor, a bootstrapping body bias circuit can adaptively adjust the threshold voltage of the connected transistor and compensate the channel resistance variation resulting from gate-to-source voltage swing. The bootstrapping body bias circuit can be implemented using passive elements, active elements, or a combination thereof.

Abstract translation: 为可变衰减器的线性化系统和方法提供的系统和方法。 可变衰减器可以包括沿着从输入到输出的主信号路径的串联晶体管，以及分流晶体管。 自举体偏置电路可以与一个或串联晶体管一起使用，以允许连接的晶体管的主体响应于接收到的RF输入信号而摆动。 随着RF信号增加并影响晶体管的栅极 - 源极电压差，自举体偏置电路可以自适应地调节连接的晶体管的阈值电压，并补偿由栅极至源极电压摆幅引起的沟道电阻变化。 自举体偏置电路可以使用无源元件，有源元件或其组合来实现。

公开(公告)号：US20110273355A1

公开(公告)日：2011-11-10

申请号：US12773222

申请日：2010-05-04

Applicant: Minsik Ahn ,  Chang-Ho Lee

Inventor： Minsik Ahn ,  Chang-Ho Lee

IPC: H01Q1/50 ,  H01Q3/24

CPC classification number: H01Q1/50 ,  H01Q3/24

Abstract: Example embodiments of the invention are directed to CMOS differential antenna switches with multi-section impedance transformation. The differential architecture can provide relief from large voltage swings of the power amplifiers by distributing the voltage stress over the receiver switch with two of the identical or substantially similar single-ended switches. In order to reduce the voltage stress further, multi-section impedance transformations can be used. Degraded insertion loss due to the impedance transformation technique can be compensated by selecting an optimal impedance for the antenna switch operation. Accordingly, the use of the multi-section impedance transformations with the differential antenna switch architecture enables high power handling capability for the antenna switch with acceptable efficiency for the transmitter module.

Abstract translation: 本发明的示例性实施例涉及具有多段阻抗变换的CMOS差分天线开关。 差分架构可以通过使用两个相同或基本相似的单端开关在接收器开关上分配电压来提供功率放大器的大电压摆幅。 为了进一步降低电压应力，可以使用多段阻抗变换。 可以通过选择天线开关操作的最佳阻抗来补偿由阻抗变换技术引起的降级插入损耗。 因此，利用具有差分天线开关结构的多段阻抗变换能够实现对发射机模块具有可接受效率的天线开关的高功率处理能力。

公开(公告)号：US08053093B2

公开(公告)日：2011-11-08

申请号：US12155940

申请日：2008-06-11

Applicant: Jung-Han Shin ,  Seung-Gak Yang ,  Hee-Yeon Kim ,  Chang-Ho Lee ,  Hee-Joo Ko

Inventor： Jung-Han Shin ,  Seung-Gak Yang ,  Hee-Yeon Kim ,  Chang-Ho Lee ,  Hee-Joo Ko

IPC: H01J1/63

CPC classification number: C07D221/10 ,  C07F1/08 ,  C07F3/08 ,  C07F5/069 ,  C09K11/06 ,  C09K2211/1029 ,  C09K2211/188 ,  H05B33/14

Abstract: An organometallic complex for an organic light emitting device represented by formula 1, a method of preparing the same and an organic light emitting device including the same: where R1 through R16 are a hydrogen atom, a cyano group, a hydroxyl group, a nitro group, a halogen atom, a C1-C20 alkyl group, a C1-C20 alkoxy group, a C6-C20 aryl group, a C7-C20 arylalkyl group, a C2-C20 alkylalkoxy group, a C7-C20 arylalkoxy group, a C6-C20 arylamino group, a C1-C20 alkylamino group, a C6-C20 heteroarylamino group, and a C2-C20 hetero-ring group; and M is a bivalent metal such as Be, Mg, Zn, Ca, Cr, Fe, Co, Ni and Cu. The compound represented by Formula 1 can be effectively used in an electron transport layer or an electron injection layer. An organic light emitting device including the compound represented by Formula 1 can thus have long lifetime.

Abstract translation: 由式1表示的有机发光器件的有机金属络合物，其制备方法和包括其的有机发光器件：其中R 1至R 16为氢原子，氰基，羟基，硝基 卤素原子，C1-C20烷基，C1-C20烷氧基，C6-C20芳基，C7-C20芳基烷基，C2-C20烷基烷氧基，C7-C20芳基烷氧基，C6- C20芳基氨基，C1-C20烷基氨基，C6-C20杂芳基氨基和C2-C20杂环基团; M是Be，Mg，Zn，Ca，Cr，Fe，Co，Ni和Cu等二价金属。 由式1表示的化合物可以有效地用于电子传输层或电子注入层。 因此，具有式1化合物的有机发光元件的寿命长。

公开(公告)号：US08044759B2

公开(公告)日：2011-10-25

申请号：US12902940

申请日：2010-10-12

Applicant: Ki Seok Yang ,  Jeonghu Han ,  Jaejoon Chang ,  Woonyun Kim ,  Chang-Ho Lee

Inventor： Ki Seok Yang ,  Jeonghu Han ,  Jaejoon Chang ,  Woonyun Kim ,  Chang-Ho Lee

IPC: H01F5/00

CPC classification number: H01F27/2804 ,  H01F19/04 ,  H01L2224/48091 ,  H01L2224/49175 ,  H01L2924/00014

Abstract: Systems and methods are provided for overlapping compact multiple transformers. The systems and methods may include a first transformer section that includes a first primary winding section and a first secondary winding, where the first primary winding section is inductively coupled to the first secondary winding, where the first transformer section is associated with a first rotational current flow direction in the first primary winding section; and a second transformer section that includes a second primary winding section and a second secondary winding, where the second primary winding section is inductively coupled to the second secondary winding, wherein the second transformer section is associated with a second rotational current flow direction in the second primary winding section, where a first portion of the first primary winding section is adjacent to a second portion of the second primary winding section, where the adjacent first and second portions include a substantially same first linear current flow direction.

Abstract translation: 提供了用于重叠紧凑型多变压器的系统和方法。 系统和方法可以包括第一变压器部分，其包括第一初级绕组部分和第一次级绕组，其中第一初级绕组部分感应耦合到第一次级绕组，其中第一变压器部分与第一转子电流相关联 第一初级绕组段中的流动方向; 以及第二变压器部分，其包括第二初级绕组部分和第二次级绕组，其中所述第二初级绕组部分感应耦合到所述第二次级绕组，其中所述第二变压器部分与所述第二转子部分中的第二转动电流流动方向相关联， 初级绕组部分，其中第一初级绕组部分的第一部分与第二初级绕组部分的第二部分相邻，其中相邻的第一和第二部分包括基本相同的第一线性电流流动方向。

公开(公告)号：US20110249211A1

公开(公告)日：2011-10-13

申请号：US13064561

申请日：2011-03-31

Applicant: Hyung-Jun Song ,  Jong-Hyuk Lee ,  Chang-Ho Lee ,  Il-Soo Oh ,  Hee-Jo Ko ,  Si-Jin Cho ,  Jin-Young Yun

Inventor： Hyung-Jun Song ,  Jong-Hyuk Lee ,  Chang-Ho Lee ,  Il-Soo Oh ,  Hee-Jo Ko ,  Si-Jin Cho ,  Jin-Young Yun

IPC: G02F1/1365

CPC classification number: G02F1/1334 ,  G02F2201/44 ,  H01L27/3232 ,  H01L27/326

Abstract: An organic light emitting display device includes a substrate having a transmitting region interposed between pixel regions; thin film transistors on a first surface of the substrate; a passivation layer covering the thin film transistors; pixel electrodes on the passivation layer; an opposite electrode disposed to face the pixel electrodes; an organic emission layer between the pixel electrodes and the opposite electrode; a polymer dispersed liquid crystal (PDLC) device disposed such that the thin film transistors are between the PDLC device and the passivation layer, the PDLC device having: a first electrode; a second electrode; and a PDLC layer in which liquid crystal is dispersed in polymer matrix. Distortion of images transmitted through the organic light emitting display device is prevented by restricting scattering of the transmitted light, the transmission of the external light may be adjusted simply, and degradation of the brightness and color coordinate reproduction may be prevented.

Abstract translation: 一种有机发光显示装置，包括：在像素区域之间具有透射区域的基板; 在所述基板的第一表面上的薄膜晶体管; 覆盖薄膜晶体管的钝化层; 钝化层上的像素电极; 设置成面对像素电极的相对电极; 像素电极和对置电极之间的有机发射层; 设置为使得所述薄膜晶体管位于所述PDLC器件和所述钝化层之间的聚合物分散液晶（PDLC）器件，所述PDLC器件具有：第一电极; 第二电极; 以及其中液晶分散在聚合物基质中的PDLC层。 通过限制透射光的散射来防止通过有机发光显示装置透射的图像的失真，可以简单地调节外部光的透射，并且可以防止亮度和色彩坐标再现的劣化。

公开(公告)号：US20110187682A1

公开(公告)日：2011-08-04

申请号：US12861360

申请日：2010-08-23

Applicant: Sung-Man KIM ,  Hong-Woo LEE ,  Chang-Ho LEE ,  Eung-Gyu LEE ,  Yu-Jun KIM ,  Yu-Jin KIM ,  Jin-Suk SEO ,  Byung-Su OH

Inventor： Sung-Man KIM ,  Hong-Woo LEE ,  Chang-Ho LEE ,  Eung-Gyu LEE ,  Yu-Jun KIM ,  Yu-Jin KIM ,  Jin-Suk SEO ,  Byung-Su OH

IPC: G09G5/00 ,  G09G3/36

CPC classification number: G09G5/00 ,  G09G3/36

Abstract: A liquid crystal display (“LCD”) device includes a display panel, a data driving part, and at least one first light-blocking part and at least one second light-blocking part. The display panel includes a plurality of pixels and a plurality of data lines. The pixels are arranged in a column direction and a row direction. At least one of the data lines extends in a zigzag shape along the column direction to be discontinuously disposed between two adjacent columns of the pixels. The at least one data line is electrically connected to two of the pixels that are adjacent in the row direction. The second light-blocking part is thinner than the first light-blocking part. The first light-blocking part and the second light-blocking are repeatedly disposed on an area between two adjacent columns of the pixels. The data driving part applies a data signal to the data lines.

Abstract translation: 液晶显示器（“LCD”）装置包括显示面板，数据驱动部分和至少一个第一遮光部分和至少一个第二遮光部分。 显示面板包括多个像素和多条数据线。 像素沿列方向和行方向排列。 数据线中的至少一条沿着列方向以锯齿形延伸，以不连续地设置在像素的两个相邻列之间。 至少一条数据线电连接到在行方向上相邻的两个像素。 第二遮光部分比第一遮光部分薄。 第一遮光部分和第二光阻被重复地设置在像素的两个相邻列之间的区域上。 数据驱动部分将数据信号应用于数据线。

公开(公告)号：US07961048B2

公开(公告)日：2011-06-14

申请号：US12623164

申请日：2009-11-20

Applicant: Michael Alan Oakley ,  Dong Ho Lee ,  Kyu Hwan An ,  Chang-Ho Lee ,  Joy Laskar

Inventor： Michael Alan Oakley ,  Dong Ho Lee ,  Kyu Hwan An ,  Chang-Ho Lee ,  Joy Laskar

IPC: H03F3/68

CPC classification number: H03F3/45188 ,  H03F1/0288 ,  H03F3/211 ,  H03F3/604

Abstract: An integrated power amplifier can include a carrier amplifier, where the carrier amplifier is connected to a first quarter wave transformer at the input of the carrier amplifier. In addition, the power amplifier can further include at least one peaking amplifier connected in parallel with the carrier amplifier; a first differential combining structure, where the first combining structure includes a first plurality of quarter wave transformers that are configured to combine respective first differential outputs of the carrier amplifier in phase to generate a first single-ended output signal, and a second differential combining structure, where the second combining structures includes a second plurality of quarter wave transformers that are configured to combine respective second differential outputs of the at least one peaking amplifier in phase to generate a second single-ended output signal, where the first single-ended output signal and the second single-ended output signal are combinable in-phase to provide an overall output.

Abstract translation: 集成功率放大器可以包括载波放大器，其中载波放大器在载波放大器的输入处连接到第一四分之一波长的变压器。 此外，功率放大器还可以包括与载波放大器并联连接的至少一个峰值放大器; 第一差分组合结构，其中所述第一组合结构包括第一多个四分之一波长变换器，其被配置为相位地组合所述载波放大器的相应的第一差分输出以产生第一单端输出信号，以及第二差分组合结构 ，其中所述第二组合结构包括第二多个四分之一波长变换器，其被配置为组合所述至少一个峰值放大器的相应的第二差分输出以产生第二单端输出信号，其中所述第一单端输出信号 并且第二单端输出信号可同步地组合以提供总体输出。

公开(公告)号：US07944311B1

公开(公告)日：2011-05-17

申请号：US12641052

申请日：2009-12-17

Applicant: Hamhee Jeon ,  Chang-Ho Lee ,  Joy Laskar

Inventor： Hamhee Jeon ,  Chang-Ho Lee ,  Joy Laskar

IPC: H03F3/04

CPC classification number: H03F3/245 ,  H03F1/223 ,  H03F1/56 ,  H03F3/193 ,  H03F2200/222 ,  H03F2200/318 ,  H03F2200/387 ,  H03F2200/411 ,  H03F2200/451

Abstract: A system for a power transmitter may be provided. The system may include a first amplifier stage having at least a first transistor and a second transistor that are connected in a first cascode configuration; a second amplifier stage having at least a third transistor and a fourth transistor that are connected in a second cascode configuration, where the first transistor receives a system input of the power transmitter, where the second transistor is connected to the third transistor, and where the fourth transistor provides a system output of the power transmitter; and a feedback network that connects a first gate or base of the fourth transistor with a second gate or base of the second transistor.

Abstract translation: 可以提供用于功率发射器的系统。 该系统可以包括具有以第一共源共栅配置连接的至少第一晶体管和第二晶体管的第一放大器级; 具有至少第三晶体管和第四晶体管的第二放大器级，所述第三晶体管和第四晶体管以第二共源共栅配置连接，其中所述第一晶体管接收所述功率发射器的系统输入，其中所述第二晶体管连接到所述第三晶体管， 第四晶体管提供功率发射器的系统输出; 以及将第四晶体管的第一栅极或基极与第二晶体管的第二栅极或基极连接的反馈网络。

公开(公告)号：US07936215B2

公开(公告)日：2011-05-03

申请号：US12416268

申请日：2009-04-01

Applicant: Chang-Ho Lee ,  Ockgoo Lee ,  Jeonghu Han ,  Kyu Hwan An ,  Hyungwook Kim ,  Dong Ho Lee ,  Ki Seok Yang ,  Haksun Kim ,  Joy Laskar

Inventor： Chang-Ho Lee ,  Ockgoo Lee ,  Jeonghu Han ,  Kyu Hwan An ,  Hyungwook Kim ,  Dong Ho Lee ,  Ki Seok Yang ,  Haksun Kim ,  Joy Laskar

IPC: H03F1/00

CPC classification number: H03F1/565 ,  H01F27/2804 ,  H03F3/195 ,  H03F3/211 ,  H03F3/45475 ,  H03F2200/387 ,  H03F2200/391 ,  H03F2200/399 ,  H03F2200/402 ,  H03F2200/451 ,  H03F2200/541 ,  H03F2203/45138 ,  Y10T29/5313

Abstract: Embodiments of the invention may provide for power amplifier systems and methods. The systems and methods may include a power amplifier that generates a first differential output signal and a second differential output signal, a primary winding comprised of a plurality of primary segments, where a first end of each primary segment is connected to a first common input port and a second end of each primary segment is connected to a second common input port, where the first common input port is operative to receive the first differential output signal, and where the second common input port is operative to receive the second differential output signal, and a single secondary winding inductively coupled to the plurality of primary segments.

Abstract translation: 本发明的实施例可以提供功率放大器系统和方法。 系统和方法可以包括产生第一差分输出信号和第二差分输出信号的功率放大器，由多个主要段组成的初级绕组，其中每个主要段的第一端连接到第一公共输入端口 并且每个主要段的第二端连接到第二公共输入端口，其中第一公共输入端口用于接收第一差分输出信号，并且其中第二公共输入端口用于接收第二差分输出信号， 以及电感耦合到所述多个初级段的单个次级绕组。