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    Multi-throw antenna switch with off-state capacitance reduction
    143.
    发明授权
    Multi-throw antenna switch with off-state capacitance reduction 有权
    具有关断状态电容降低的多掷天线开关

    公开(公告)号：US09024838B2

    公开(公告)日：2015-05-05

    申请号：US13570908

    申请日：2012-08-09

    Applicant: Minsik Ahn ,  Chang-Ho Lee ,  Aristotele Hadjichristos

    Inventor： Minsik Ahn ,  Chang-Ho Lee ,  Aristotele Hadjichristos

    IPC: H01Q3/24 ,  H01Q1/50 ,  H04B1/00

    CPC classification number: H01Q1/50 ,  H04B1/006 ,  H04B1/406

    Abstract: A multi-throw antenna switch with off-state capacitance reduction is disclosed. In an exemplary embodiment, an apparatus is provided that includes a plurality of first stage switches connected to an antenna, and a plurality of second stage switches connected to the plurality of first stage switches, each first stage switch connected in series to one or more second stage switches to form a plurality of switchable signal paths connected to the antenna.

    Abstract translation: 公开了一种具有关闭状态电容降低的多掷天线开关。 在示例性实施例中，提供了一种装置，其包括连接到天线的多个第一级开关和连接到多个第一级开关的多个第二级开关，每个第一级开关串联连接到一个或多个第二级开关 级开关以形成连接到天线的多个可切换信号路径。

    Method of driving display panel and display apparatus for performing the same
    145.
    发明授权
    Method of driving display panel and display apparatus for performing the same 失效
    驱动显示面板的方法和执行该显示面板的显示装置

    公开(公告)号：US08773339B2

    公开(公告)日：2014-07-08

    申请号：US13209521

    申请日：2011-08-15

    Applicant: Young-Su Kim ,  Jae-Hoon Lee ,  Chang-Ho Lee ,  Yu-Han Bae

    Inventor： Young-Su Kim ,  Jae-Hoon Lee ,  Chang-Ho Lee ,  Yu-Han Bae

    IPC: G09G5/00

    CPC classification number: G09G3/3655 ,  G09G2320/0214

    Abstract: A method of driving a display panel includes applying a common voltage to the display panel, sensing a frequency of the display panel to generate a frequency signal, adjusting a gain of an operational amplifier based on the frequency signal, receiving a feedback common voltage from the display panel, and compensating the common voltage using an input resistor, the operational amplifier and a feedback resistor based on the feedback common voltage to apply the compensated common voltage to the display panel. The operational amplifier includes an inverting input terminal connected to the input resistor, a non-inverting input terminal to which a reference common voltage is applied and an output terminal. The feedback resistor is between the inverting input terminal and the output terminal.

    Abstract translation: 驱动显示面板的方法包括向显示面板施加公共电压，感测显示面板的频率以产生频率信号，基于频率信号调整运算放大器的增益，从所述频率信号接收反馈公共电压 显示面板，并使用输入电阻器，运算放大器和基于反馈公共电压的反馈电阻器补偿公共电压，以将补偿的公共电压施加到显示面板。 运算放大器包括连接到输入电阻器的反相输入端子，施加参考公共电压的非反相输入端子和输出端子。 反馈电阻位于反相输入端和输出端之间。

    HIGH POWER TUNABLE CAPACITOR
    147.
    发明申请
    HIGH POWER TUNABLE CAPACITOR 有权
    高功率电容电容器

    公开(公告)号：US20140055212A1

    公开(公告)日：2014-02-27

    申请号：US13593201

    申请日：2012-08-23

    Applicant: Minsik Ahn ,  Kyu Hwan An ,  Chang-Ho Lee ,  Aristotele Hadjichristos

    Inventor： Minsik Ahn ,  Kyu Hwan An ,  Chang-Ho Lee ,  Aristotele Hadjichristos

    IPC: H03H7/01

    CPC classification number: H03H7/0153 ,  H03F2200/378 ,  H03F2200/387 ,  H03H7/01 ,  H03H7/48 ,  H03K17/102 ,  H03K17/56

    Abstract: A high power tunable capacitor is disclosed. In an exemplary embodiment, an apparatus includes a capacitor coupled to an input signal, a body contacted switch coupled to the capacitor, the body contacted switch coupled to a body bias signal, and a floating body switch coupled between the body contacted switch and a ground, the floating body switch configured to decouple the body bias signal from the ground.

    Abstract translation: 公开了一种高功率可调电容器。 在一个示例性实施例中，一种装置包括耦合到输入信号的电容器，耦合到电容器的身体接触开关，耦合到体偏置信号的身体接触开关以及耦合在身体接触开关和地面之间的浮体开关 浮动体开关被配置为将体偏置信号与地面去耦。

    Systems and methods for complementary metal-oxide-semiconductor (CMOS) differential antenna switches using multi-section impedance transformations
    150.
    发明授权
    Systems and methods for complementary metal-oxide-semiconductor (CMOS) differential antenna switches using multi-section impedance transformations 有权
    使用多段阻抗变换的互补金属氧化物半导体（CMOS）差分天线开关的系统和方法

    公开(公告)号：US08570235B2

    公开(公告)日：2013-10-29

    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 ,  H04B1/44 ,  H01P1/15

    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。

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