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    • 112. 发明申请
    • Back light assembly and liquid crystal display apparatus having the same
    • 背光组件和具有该背光组件的液晶显示装置
    • US20050243578A1
    • 2005-11-03
    • US10518460
    • 2003-07-29
    • Sang-Duk LeeKyu-Seok KimJae-Ho Jung
    • Sang-Duk LeeKyu-Seok KimJae-Ho Jung
    • G02F1/13357F21V8/00G02B6/00F21V7/04
    • G02B6/0036G02B6/0046G02B6/0055
    • The backlight assembly includes a light source and a light guide plate. The light source includes a plurality of light generating parts that generate a first light. The light guide plate includes side surfaces, a light exiting surface and a light reflecting surface. The light exiting surface has a plurality of luminance-compensating patterns. The light reflecting surface faces the light exiting surface. The first light enters into the light guide plate via the light incident surface to form a second light. The second light is reflected on the light reflecting surface toward the light exiting surface to form a third light. The third light exits from the light guide plate via the light exiting surface. The luminance-compensating patterns uniformize a luminance of the third light. A thickness of the light guide plate decreases in a direction from the light incident surface to a center of the light guide plate.
    • 背光组件包括光源和导光板。 光源包括产生第一光的多个发光部。 导光板包括侧表面,光出射表面和光反射表面。 光出射表面具有多个亮度补偿图案。 光反射表面面向光出射表面。 第一光经由光入射面进入导光板,形成第二光。 第二光在光反射面上朝向光出射面反射,形成第三光。 第三光经由光出射表面从导光板射出。 亮度补偿图案使第三光的亮度均匀化。 导光板的厚度在从光入射面到导光板的中心的方向上减小。
    • 116. 发明授权
    • Predistortion apparatuses and methods
    • 预失真装置和方法
    • US08704595B2
    • 2014-04-22
    • US13331377
    • 2011-12-20
    • Young-Hoon KimGweon Do JoJung Hoon OhJae Ho Jung
    • Young-Hoon KimGweon Do JoJung Hoon OhJae Ho Jung
    • H03F1/26
    • H03F1/3247H03F1/3258H03F2201/3209H03F2201/3212H03F2201/3224
    • Provided is a predistortion apparatus which performs predistortion by reflecting a memory effect when linearizing an output of a nonlinear device using a wideband signal. The predistortion apparatus includes a predistortion unit and a coefficient extraction unit. The predistortion unit selects and outputs one of outputs of the sub-predistorters as an output signal according to intensity of an input signal. The coefficient extraction unit selects one of a plurality of coefficient extractors according to intensity of a nonlinear signal which is generated in response to the output signal, extracts a plurality of predistortion coefficients with the nonlinear signal and the output signal, and delivers the extracted predistortion coefficients to the predistortion unit. Accordingly, the memory effect is reflected even when the input signal is a wideband signal.
    • 提供一种预失真装置,其通过使用宽带信号线性化非线性装置的输出来反映存储器效应来执行预失真。 预失真装置包括预失真单元和系数提取单元。 预失真单元根据输入信号的强度选择并输出副预失真器的输出之一作为输出信号。 系数提取单元根据输出信号产生的非线性信号的强度,选择多个系数提取器中的一个,用非线性信号和输出信号提取多个预失真系数,并将提取的预失真系数 到预失真单位。 因此,即使当输入信号是宽带信号时也会反映存储效应。
    • 118. 发明申请
    • APPARATUS AND METHOD FOR CONTROLLING DISTORTION SIGNAL AND SYSTEM BY USING THE SAME
    • 用于通过使用它来控制失真信号和系统的装置和方法
    • US20130251055A1
    • 2013-09-26
    • US13587296
    • 2012-08-16
    • Chang Wahn YUGweon Do JOJung Hoon OHKwang Chun LEEJae Ho JUNG
    • Chang Wahn YUGweon Do JOJung Hoon OHKwang Chun LEEJae Ho JUNG
    • H04L27/28
    • H04L5/0007H04L27/2614H04L27/2627
    • Disclosed are a signal distortion component adjusting apparatus and method capable of adjusting error vector magnitude of subcarriers of a predetermined position by adjusting a signal distortion component occurring while decreasing a peak to average power ratio (PAPR) in a communication system of an orthogonal frequency division multiplexing (OFDM) technology or an orthogonal frequency division multiple access (OFDMA) scheme, and a system using the same. The present invention includes a signal distortion component adjusting unit to add an additional signal distortion component Pe((n+N/2) % N) to a signal distortion component e(n) that is obtained by subtracting a threshold Th value, set to decrease peak power, from an absolute value of a time domain signal x(n) of an input signal, and to thereby adjust the signal distortion component. The present invention may transmit a highly reliable signal by adjusting error vector magnitude of subcarrier of a frequency domain.
    • 公开了一种信号失真分量调整装置和方法,其能够通过调整在正交频分复用的通信系统中降低峰均功率比(PAPR)的同时发生的信号失真分量来调整预定位置的子载波的误差矢量幅度 (OFDM)技术或正交频分多址(OFDMA)方案,以及使用它们的系统。 本发明包括一个信号失真分量调整单元,用于将附加信号失真分量Pe((n + N / 2)%N)加到通过将阈值Th值减去得到的信号失真分量e(n) 从输入信号的时域信号x(n)的绝对值减小峰值功率,从而调整信号失真分量。 本发明可以通过调整频域的子载波的误差矢量幅度来发送高度可靠的信号。
    • 119. 发明授权
    • Apparatus and method for controlling gain of polar transmitter
    • 用于控制极性发射器增益的装置和方法
    • US08433268B2
    • 2013-04-30
    • US13132537
    • 2009-10-29
    • Jae-Ho JungJoon-Hyung KimKwang-Chun Lee
    • Jae-Ho JungJoon-Hyung KimKwang-Chun Lee
    • H04B1/04
    • H03G3/30H03F3/211H03F3/2176H03F3/24H04L27/361
    • Disclosed is an apparatus for transmitting complex signals in a wireless communication system. The present invention, there is provided a method for controlling gain according to a magnitude change of output signals in a polar transmitter including an amplification unit having two or more amplification degrees, the method includes processes to control an output level of a modulated signal when a output-required power of transmission signals are less than a predetermined threshold value, and to perform a basic amplification through the amplification unit; to amplify the amplification unit at a first amplification level when the output-required power of the transmission signals is equal to or greater than a predetermined first threshold value and is less than a predetermined second threshold value; and to amplify the amplification unit at a second amplification level when the output-required power of the transmission signal is equal to or greater than the second threshold value.
    • 公开了一种用于在无线通信系统中发送复杂信号的装置。 本发明提供了一种用于根据包括具有两个或更多个放大度的放大单元的极性发射器中的输出信号的幅度变化来控制增益的方法,所述方法包括当调制信号的输出电平 输出要求的发送信号功率小于预定阈值,并通过放大单元执行基本放大; 当发送信号的输出要求功率等于或大于预定的第一阈值且小于预定的第二阈值时,以第一放大级放大放大单元; 并且当传输信号的输出所需功率等于或大于第二阈值时,以第二放大级放大放大单元。