-
公开(公告)号：KR1020080057931A
公开(公告)日：2008-06-25
申请号：KR1020060131860
申请日：2006-12-21
Applicant: 삼성전자주식회사
Inventor： 정윤호
Abstract: A gamma voltage generating device is provided to improve display characteristics by supplying uniform gamma reference voltages to a data driver even when an analog driving voltage varies according to the variation of ambient temperature. A gamma voltage generating device includes a DC/DC converter(510), a common voltage generator(530), and a gamma voltage generator(540). The DC/DC(Direct Current) converter generates an analog driving voltage based on a source voltage from outside. The common voltage generator including plural diodes and resistors in series generates a common voltage varied according to ambient temperature based on the analog driving voltage. The gamma voltage generator including plural diodes and resistors in series, generates plural gamma reference voltages varied according to the ambient temperature based on the analog driving voltage and the common voltage.
Abstract translation: 提供伽马电压产生装置，以便即使当模拟驱动电压根据环境温度的变化而变化时，也通过向数据驱动器提供均匀的伽马参考电压来改善显示特性。 伽马电压产生装置包括DC / DC转换器（510），公共电压发生器（530）和伽马电压发生器（540）。 DC / DC（直流）转换器基于外部的源极电压产生模拟驱动电压。 包括串联的多个二极管和电阻器的公共电压发生器产生基于模拟驱动电压根据环境温度变化的公共电压。 包括串联的多个二极管和电阻器的伽马电压发生器产生根据模拟驱动电压和公共电压根据环境温度而变化的多个伽马参考电压。
-
公开(公告)号：KR1020070095228A
公开(公告)日：2007-09-28
申请号：KR1020070026825
申请日：2007-03-19
Applicant: 삼성전자주식회사
CPC classification number: H04B1/126 , H04L25/0206 , H04L25/0228 , H04L25/03006 , H04L27/2647 , H04L2025/03426
Abstract: An apparatus for canceling neighbor cell interference in a broadband wireless communication system and a method thereof are provided to reduce complex-matrix multiplication operations and inverse-matrix operations when a linear MMSE(Minimum Mean Square Error) detection technique is used to cancel interference in a broadband wireless communication system, so hardware construction becomes simplified. An apparatus for canceling neighbor cell interference in a broadband wireless communication system comprises operators(201,202), channel estimators(203,204), and a detector(205). The operators perform a Fourier transform operation with respect to the target signal and neighbor signal received through each of the receiving antennas. The channel estimators receive the Fourier transformed signals from the operator, and estimate a frequency response of each channel received from the serving base station and neighbor base stations. The detector detects a target signal by using the channel frequency response estimated from the received signals.
Abstract translation: 提供一种用于消除宽带无线通信系统中的相邻小区干扰的装置及其方法，用于当使用线性MMSE（最小均方误差）检测技术来消除干扰时，减少复矩阵乘法运算和逆矩阵运算 宽带无线通信系统，因此硬件结构变得简单化。 用于消除宽带无线通信系统中的相邻小区干扰的装置包括运营商（201,202），信道估计器（203,204）和检测器（205）。 操作者对通过每个接收天线接收到的目标信号和相邻信号进行傅里叶变换操作。 信道估计器从操作者接收傅里叶变换信号，并估计从服务基站和邻近基站接收的每个信道的频率响应。 检测器通过使用从接收到的信号估计的信道频率响应来检测目标信号。
-
公开(公告)号：KR1020070067958A
公开(公告)日：2007-06-29
申请号：KR1020050129534
申请日：2005-12-26
Applicant: 삼성전자주식회사
CPC classification number: G02F1/133615 , G02F1/133524 , G09G3/3406 , G09G3/36
Abstract: A driving method of an LCD(Liquid Crystal Display) is provided to selectively turn on or off plural lamps of a backlight unit according to the use environment, thereby realizing low power consumption and improving lifespan of a lamp. At least two lamps of a backlight unit are selectively driven. A system body is driven. According to the use environment, the number of lamps for driving is set among at least two lamps. A driving program is checked according to the use environment. The use environment is any one of a moving picture play, a game play and a document work. The backlight unit is an edge light type and at least two lamps are arranged at a side of a light guide panel of the backlight unit. The backlight unit is arranged at the rear of a display unit and supplies the light to the display unit. The display unit includes a liquid crystal for controlling an amount of the transmission light from the backlight unit. A color filter substrate and a TFT(Thin Film Transistor) are bonded by interposing the liquid crystal.
Abstract translation: 提供了LCD（液晶显示器）的驱动方法，以根据使用环境选择性地打开或关闭背光单元的多个灯，从而实现低功耗并提高灯的寿命。 选择性地驱动背光单元的至少两个灯。 系统主体被驱动。 根据使用环境，在至少两个灯中设置用于驱动的灯的数量。 根据使用环境检查驾驶程序。 使用环境是运动图像播放，游戏和文档工作中的任何一种。 背光单元是边缘光型，并且在背光单元的导光板的一侧设置至少两个灯。 背光单元布置在显示单元的后部，并将光提供给显示单元。 显示单元包括用于控制来自背光单元的透射光量的液晶。 通过插入液晶来结合滤色器基板和TFT（薄膜晶体管）。
-
-
-
Patent Agency Ranking
-
-
公开(公告)号：KR101544705B1
公开(公告)日：2015-08-17
申请号：KR1020080135263
申请日：2008-12-29
Applicant: 삼성전자주식회사 , 연세대학교 산학협력단
CPC classification number: H04W16/14
Abstract: 희생시스템을정확하게검출하는희생시스템검출장치는상관부및 결정부를포함한다. 상관부는제1 통신시스템에서수신된무선신호가변환되어생성된주파수영역베이스밴드신호와제2 통신시스템에대한상관시퀀스사이의상관도를계산한다. 결정부는계산된상관도에기초하여주파수영역베이스밴드신호가제2 통신시스템의신호를포함하는지를결정한다. 적은면적으로희생시스템을효율적으로검출하는희생시스템검출장치를구현할수 있다.
-
公开(公告)号：KR1020110089007A
公开(公告)日：2011-08-04
申请号：KR1020100008791
申请日：2010-01-29
Applicant: 삼성전자주식회사 , 연세대학교 산학협력단
CPC classification number: H04L27/06 , H04L1/06 , H03M13/3927 , H04B7/0413 , H04B7/0697
Abstract: PURPOSE: A device and method for detecting a signal in a space multiplexing multiple input multiple output communication system are provided to reduce the operation complexity of a signal receiving device. CONSTITUTION: A preprocessor(211) includes a channel arrangement and QR decomposer(211-1) and a received signal vector converter(211-2). An input updating unit(213) includes an R matrix updater(213-1) and a received signal vector updater(213-2). A candidate symbol detecting unit(215) includes a candidate symbol vector detector(215-1), a substitution candidate symbol generator(215-2), and a candidate symbol vector expander(215-3). An LLR(Log-Likelihood Ratio)(217) includes an Euclidean distance calculator(217-1) and an LLR calculator(217-2).
Abstract translation: 目的：提供一种用于检测空间复用多输入多输出通信系统中的信号的装置和方法，以减少信号接收装置的操作复杂度。 构成：预处理器（211）包括通道布置和QR分解器（211-1）和接收信号矢量转换器（211-2）。 输入更新单元（213）包括R矩阵更新器（213-1）和接收信号矢量更新器（213-2）。 候选符号检测单元（215）包括候选符号向量检测器（215-1），替换候选符号生成器（215-2）和候选符号向量扩展器（215-3）。 LLR（对数似然比）（217）包括欧几里德距离计算器（217-1）和LLR计算器（217-2）。
-
公开(公告)号：KR1020070067311A
公开(公告)日：2007-06-28
申请号：KR1020050128471
申请日：2005-12-23
Applicant: 삼성전자주식회사
IPC: H04B7/04
CPC classification number: H04B7/0845 , H04L1/0631 , H04L1/0656
Abstract: An apparatus and a method for canceling interference of an adjacent cell in a broadband wireless communication system are provided to prevent an increase of complexity of hardware by preventing an additional increase of a buffer. It is checked whether signals of a serving base station and a neighbor base station are received through multiple receive antennas of a terminal(501). The terminal performs FFT(Fast Fourier Transform) on signals received through each receive antenna to transform signals of a time domain into signals of a frequency domain(503). Respective channels are estimated by using preamble signals of the serving base station and the neighbor base station from the transformed signals(505). The terminal generates a nulling vector for estimating a target signal component by using the estimated channel values(507). The terminal estimates a target signal component by linearly operating the nulling vector and the transformed reception signals(509). The terminal detects a target signal by using the generated target signal component(511).
Abstract translation: 提供了用于消除宽带无线通信系统中的相邻小区的干扰的装置和方法，以通过防止缓冲器的附加增加来防止硬件的复杂性的增加。 检查通过终端（501）的多个接收天线是否接收到服务基站和邻近基站的信号。 终端对通过每个接收天线接收的信号执行FFT（快速傅里叶变换），以将时域的信号转换成频域（503）的信号。 通过使用来自变换信号的服务基站和邻近基站的前导信号来估计各个信道（505）。 终端通过使用估计的信道值来生成用于估计目标信号分量的归零向量（507）。 终端通过线性地操作归零向量和变换的接收信号（509）来估计目标信号分量。 终端通过使用生成的目标信号分量来检测目标信号（511）。
-
-
-
-
-
-
-
-
-
Search Results
52
records
(took 0.023 seconds)
