公开(公告)号：US08483264B2

公开(公告)日：2013-07-09

申请号：US12984193

申请日：2011-01-04

申请人： Chae-Man Lim ,  Ho-Il Kim ,  Kyung-Ha Lee

发明人： Chae-Man Lim ,  Ho-Il Kim ,  Kyung-Ha Lee

IPC分类号： H03H7/40 ,  H04B1/10

CPC分类号： H04L25/0214 ,  H04L25/0216 ,  H04L25/0224 ,  H04L25/03012

摘要： An apparatus and a method for improving performance of an equalizer in a wireless communication system are provided. The apparatus of a reception end includes a search unit and an estimator. The search unit determines power values of respective taps inside a window based on a signal received via a pilot channel, and classifies the taps into one or more meaningful taps and one or more noise taps. The estimator allocates one or more 1-tap channel estimators to the one or more meaningful taps, and determines a channel estimation vector based on a channel estimation value of the one or more meaningful taps determined by the one or more 1-tap channel estimators.

摘要翻译： 提供了一种用于提高无线通信系统中的均衡器的性能的装置和方法。 接收端的装置包括搜索单元和估计器。 搜索单元基于经由导频信道接收到的信号来确定窗口内的各个抽头的功率值，并将该抽头分类成一个或多个有意义的抽头和一个或多个噪声抽头。 估计器将一个或多个1抽头信道估计器分配给一个或多个有意义的抽头，并且基于由一个或多个1抽头信道估计器确定的一个或多个有意义的抽头的信道估计值来确定信道估计向量。

公开(公告)号：US08228441B2

公开(公告)日：2012-07-24

申请号：US11185043

申请日：2005-07-20

申请人： Kyung-Eun Lee ,  Kyung-Ha Lee

发明人： Kyung-Eun Lee ,  Kyung-Ha Lee

IPC分类号： H04N5/50 ,  H04L27/06

CPC分类号： H04H20/26 ,  H04H60/27 ,  H04N5/4401 ,  H04N5/50 ,  H04N21/4348 ,  H04N21/4383 ,  H04N21/44004 ,  H04N21/4882

摘要： An apparatus and a method capable of receiving digital broadcasting without image discontinuity during channel switching. A digital multimedia broadcasting receiver buffers a previous channel while a new channel is buffered in a deinterleaver, thereby preventing image discontinuity during channel switching. The digital broadcasting receiver receives and deinterleaves broadcast data of a channel to be changed and stores the deinterleaved broadcast data in a buffer when a broadcast channel change is requested. The digital broadcasting receiver outputs and displays broadcast data of an initial channel stored in the buffer and stops output of the broadcast data of the initial channel and outputs the broadcast data of the channel to be changed, when the broadcast data of the channel to be changed are stored in the buffer by a predetermined buffering size.

摘要翻译： 一种在频道切换期间能够接收无图像不连续的数字广播的装置和方法。 数字多媒体广播接收机缓存先前的信道，同时在解交织器中缓存新信道，从而防止信道切换期间的图像不连续性。 数字广播接收机接收并解交织要改变的频道的广播数据，并且当请求广播频道改变时将解交织的广播数据存储在缓冲器中。 数字广播接收机输出并显示存储在缓冲器中的初始信道的广播数据，并且当要改变的频道的广播数据时，停止输出初始信道的广播数据并输出要改变的频道的广播数据 以预定的缓冲大小存储在缓冲器中。

公开(公告)号：US20110170588A1

公开(公告)日：2011-07-14

申请号：US12984193

申请日：2011-01-04

申请人： Chae-Man LIM ,  Ho-Il KIM ,  Kyung-Ha LEE

发明人： Chae-Man LIM ,  Ho-Il KIM ,  Kyung-Ha LEE

IPC分类号： H04L27/01

CPC分类号： H04L25/0214 ,  H04L25/0216 ,  H04L25/0224 ,  H04L25/03012

摘要： An apparatus and a method for improving performance of an equalizer in a wireless communication system are provided. The apparatus of a reception end includes a search unit and an estimator. The search unit determines power values of respective taps inside a window based on a signal received via a pilot channel, and classifies the taps into one or more meaningful taps and one or more noise taps. The estimator allocates one or more 1-tap channel estimators to the one or more meaningful taps, and determines a channel estimation vector based on a channel estimation value of the one or more meaningful taps determined by the one or more 1-tap channel estimators.

摘要翻译： 提供了一种用于提高无线通信系统中的均衡器的性能的装置和方法。 接收端的装置包括搜索单元和估计器。 搜索单元基于经由导频信道接收到的信号来确定窗口内的各个抽头的功率值，并将该抽头分类成一个或多个有意义的抽头和一个或多个噪声抽头。 估计器将一个或多个1抽头信道估计器分配给一个或多个有意义的抽头，并且基于由一个或多个1抽头信道估计器确定的一个或多个有意义的抽头的信道估计值来确定信道估计向量。

公开(公告)号：US07747233B2

公开(公告)日：2010-06-29

申请号：US11257167

申请日：2005-10-24

申请人： Kyung-Ha Lee ,  Byung-Duck Cho

发明人： Kyung-Ha Lee ,  Byung-Duck Cho

IPC分类号： H04B17/02 ,  H04B17/00 ,  H04B1/06 ,  H04B7/00

CPC分类号： H04B7/0808 ,  H04B7/0825 ,  H04B17/23 ,  H04B17/336 ,  Y02D70/444

摘要： An apparatus and method for supplying information so that power consumption in a digital broadcast receiving terminal can be reduced and a user can use an appropriate antenna depending on a situation. The digital broadcast receiving terminal includes an external antenna detachably assembled with the outside of the terminal a switch unit for selecting any one among the internal antennas and the external antenna, and a signal-receiving condition sensing unit capable of sensing the signal-receiving condition of the internal antennas and the external antenna. If it is impossible to receive the digital broadcast signal by using the internal antennas, the external antenna is used. If the external antenna is mounted, power is supplied only to an RF unit connected to the external antenna and the power supply to the remaining RF unit is cut off, reducing power consumption.

摘要翻译： 一种用于提供信息的装置和方法，使得可以减少数字广播接收终端的功耗，并且用户可以根据情况使用适当的天线。 数字广播接收终端包括可拆卸地与终端外部组装的外部天线，用于选择内部天线和外部天线中的任何一个的开关单元，以及能够感测信号接收状态的信号接收条件感测单元 内部天线和外部天线。 如果不可能通过使用内部天线接收数字广播信号，则使用外部天线。 如果安装了外部天线，则仅向连接到外部天线的RF单元提供电源，并将其余RF单元的电源切断，从而降低功耗。

公开(公告)号：US07535534B2

公开(公告)日：2009-05-19

申请号：US11853125

申请日：2007-09-11

申请人： Kyung Ha Lee ,  Hyang Yul Kim ,  Jong Yob Jeon ,  Chi Wook An

发明人： Kyung Ha Lee ,  Hyang Yul Kim ,  Jong Yob Jeon ,  Chi Wook An

IPC分类号： G02F1/1343

CPC分类号： G02F1/134363 ,  G02F1/133512

摘要： An FFS (Fringe Field Switching) mode liquid crystal display comprises a lower substrate and an upper substrate and a gate line formed on the lower substrate. A data line crosses perpendicular to the gate line. A first ITO electrode is formed in a region defined by the gate line and the data line. A second ITO electrode of a comb-teeth pattern is formed on the lower substrate while being overlapped on the first ITO electrode. A black matrix formed on the upper substrate, wherein, a wedge portion of the second ITO electrode is formed at a position spaced by a predetermined interval to the inside from an edge section of the black matrix.

摘要翻译： FFS（边缘场切换）模式液晶显示器包括下基板和上基板以及形成在下基板上的栅极线。 数据线与栅极线垂直。 第一ITO电极形成在由栅极线和数据线限定的区域中。 在第二ITO电极重叠的同时，在下基板上形成第二个梳齿图形的ITO电极。 形成在上基板上的黑色矩阵，其中，第二ITO电极的楔形部分形成在从黑矩阵的边缘部分向内部隔开预定间隔的位置处。

公开(公告)号：US07336721B2

公开(公告)日：2008-02-26

申请号：US10320182

申请日：2002-12-16

申请人： Kyung-Ha Lee ,  Soo-Bok Yeo

发明人： Kyung-Ha Lee ,  Soo-Bok Yeo

IPC分类号： H04L27/00

CPC分类号： H03C3/40

摘要： A digital frequency modulator is disclosed. In the digital frequency modulator, a first gain controller multiplies an input digital signal by a first gain determined according to a required modulation frequency, a phase accumulator accumulates the input digital signal and generates a phase accumulation according to a required phase resolution to output the phase accumulation within a predetermined output range. A second gain controller multiplies the output of the phase accumulator by a second gain determined according to the required modulation frequency and the first gain. A phase modulator outputs cosine and sine values having a phase corresponding to the second-gain controlled signal.

摘要翻译： 公开了一种数字频率调制器。 在数字频率调制器中，第一增益控制器将输入数字信号乘以根据所需调制频率确定的第一增益，相位累加器累积输入数字信号，并根据所需相位分辨率产生相位积累，以输出相位 累积在预定的输出范围内。 第二增益控制器将相位累加器的输出乘以根据所需调制频率和第一增益确定的第二增益。 相位调制器输出具有对应于第二增益受控信号的相位的余弦和正弦值。

公开(公告)号：US07161649B2

公开(公告)日：2007-01-09

申请号：US10939760

申请日：2004-09-13

申请人： Kyung Ha Lee ,  Kwi Hyun Kim

发明人： Kyung Ha Lee ,  Kwi Hyun Kim

IPC分类号： G02F1/1343 ,  G02F1/1335 ,  G02F1/1337

CPC分类号： G02F1/133528 ,  G02F1/1337 ,  G02F1/134363 ,  G02F2001/133531 ,  G02F2001/134372

摘要： Disclosure is a method for asymmetrically aligning polarizer and rubbing axes of a fringe field switching liquid crystal display, which removes a ghost image and a rubbing mura, caused by an electric field applied to a panel under a low gray scale and dark state, by twisting an optical axis of a polarizer plate and rubbing optical axes of upper and lower plates. The Disclosure aligns polarizer and rubbing axes of a lower plate into which polarizing light is incident in such a manner that an angle formed between the polarizer and rubbing axes is a first predetermined angle and aligns polarizer and rubbing axes of an upper plate through which the polarizing light passes via a liquid crystal in such a manner that an angle formed between the polarizer and rubbing axes is a second predetermined angle.

摘要翻译： 公开是一种用于使边缘场切换液晶显示器的偏振器和摩擦轴不对称地对准的方法，其通过扭转在低灰度和黑暗状态下施加到面板的电场而导致的重影图像和摩擦纹路 偏光板的光轴和上下板的摩擦光轴。 本公开使偏振器入射的下板的偏振器和摩擦轴以使得偏振器和摩擦轴之间形成的角度为第一预定角度的方式对准偏振器和对准上板的摩擦轴，偏振器 光通过液晶，使得偏振片与摩擦轴之间形成的角度为第二预定角度。

公开(公告)号：US20060268673A1

公开(公告)日：2006-11-30

申请号：US11406602

申请日：2006-04-19

申请人： Hee-Jin Roh ,  Kyung-Ha Lee ,  Suk-Jin Jung ,  Min-Goo Kim

发明人： Hee-Jin Roh ,  Kyung-Ha Lee ,  Suk-Jin Jung ,  Min-Goo Kim

IPC分类号： H04J11/00

CPC分类号： H04L27/2602 ,  H04H20/67 ,  H04H60/23 ,  H04H60/50

摘要： A method, apparatus, and system for transmitting and receiving data in a digital broadcasting system based on Orthogonal Frequency Division Multiplexing (OFDM) are provided. A transmitter frames input bit information in a predetermined bit unit, maps the framed input bit information to a transmitter identification indicator (TII) using a predefined number of orthogonal sets, and modulates the TII to an OFDM symbol to transmit the OFDM symbol. A receiver demodulates an OFDM symbol, detects a TII symbol from a predefined orthogonal signal set, demaps predetermined bits from the TII, and concatenates the demapped bits in a predetermined period unit to output bit information. Therefore, the TII can be stably received as a conditional access signal for distinguishing a broadcasting network and a relay network in the digital broadcasting system.

摘要翻译： 提供了一种在基于正交频分复用（OFDM）的数字广播系统中发送和接收数据的方法，装置和系统。 发送机以预定比特单位帧输入比特信息，使用预定数量的正交组将成帧的输入比特信息映射到发射机识别指示符（TII），并将TII调制为OFDM符号以发送OFDM符号。 接收机解调OFDM符号，从预定义的正交信号集中检测TII符号，从TII解映射预定比特，并以预定周期单元连接解映射比特以输出比特信息。 因此，可以稳定地接收TII作为用于区分数字广播系统中的广播网络和中继网络的条件接收信号。

公开(公告)号：US06904030B2

公开(公告)日：2005-06-07

申请号：US09896541

申请日：2001-06-29

申请人： Kyung-Ha Lee ,  Hee-Sun Cho ,  Sung-Bok Park

发明人： Kyung-Ha Lee ,  Hee-Sun Cho ,  Sung-Bok Park

IPC分类号： H04B1/707 ,  H04B7/216

CPC分类号： H04B1/707

摘要： A power measurement means for a mobile station for measuring transmission power of a base station in an asynchronous code division multiple access (CDMA) communication systems using diversity techniques is disclosed. The power measurement means comprises scramble code generators for generating scramble codes which are allotted to each said base station, multipliers for despreading the received pilot channel signals that are spread by the scramble codes, integrators for obtaining amplitudes of the signals by integrating the despread pilot channel signals for each slot period of the pilot symbols, and outputting the amplitudes at the end time of each slot period, squarers for obtaining the power value of the signal by squaring the amplitudes, delay means for delaying the power value one slot period, an adder for adding the power value output from said squarer and the power value provided by said delay means, and switches for connecting to the adder at the end time of every two slots.

摘要翻译： 公开了一种用于在使用分集技术的异步码分多址（CDMA）通信系统中测量基站的发射功率的移动台的功率测量装置。 功率测量装置包括用于产生分配给每个所述基站的扰码的扰频码发生器，用于解扩由密码扩频的接收导频信道信号的乘法器，用于通过对解扩后的导频信道进行积分来获得信号幅度的积分器 信号，并且输出每个时隙周期的结束时间的振幅，用于通过使振幅平方来获得信号的功率值的平方，用于延迟功率值一个时隙周期的延迟装置，加法器 用于添加从所述平方
仪输出的功率值和由所述延迟装置提供的功率值，并且在每两个时隙的结束时间切换用于连接到加法器。

公开(公告)号：US20050047448A1

公开(公告)日：2005-03-03

申请号：US10724161

申请日：2003-12-01

申请人： Kyung-Eun Lee ,  Kyung-Ha Lee

发明人： Kyung-Eun Lee ,  Kyung-Ha Lee

IPC分类号： H04N7/015 ,  H04B1/16 ,  H04N5/44 ,  H04N5/50 ,  H04N7/16 ,  H04N7/173 ,  H04N9/64 ,  H04N21/426 ,  H04N21/436 ,  H04N21/4623 ,  H04J3/04

CPC分类号： H04N21/426 ,  H04N5/4401 ,  H04N5/50 ,  H04N9/641 ,  H04N21/4181 ,  H04N21/42615 ,  H04N21/434 ,  H04N21/4623

摘要： A device and method for receiving digital broadcasting, and more particularly a device and method for providing digital multimedia services in a hybrid digital multimedia broadcasting receiver having a conditional access function. The hybrid digital broadcasting receiver includes a broadcast receiving module including a receiving section for receiving and demodulating a digital broadcasting data stream, a first demultiplexer for demultiplexing and extracting digital broadcasting data corresponding to a selected program, and a conditional access section for detecting conditional access information and decrypting the selected data using the detected information. The hybrid digital broadcasting receiver further includes a decoder module including a second demultiplexer for demultiplexing a digital multimedia data stream and a decoding section for decoding data output from the broadcast receiving module and digital multimedia data output from the second demultiplexer.

摘要翻译： 更具体地说，涉及具有条件访问功能的混合数字多媒体广播接收机中提供数字多媒体业务的装置和方法。 混合数字广播接收机包括：广播接收模块，包括用于接收和解调数字广播数据流的接收部分，用于解复用和提取对应于所选节目的数字广播数据的第一解复用器;以及用于检测条件访问信息的条件访问部分 以及使用检测到的信息来解密所选择的数据。 混合数字广播接收机还包括解码器模块，其包括用于解复用数字多媒体数据流的第二解复用器和用于解码从广播接收模块输出的数据和从第二解复用器输出的数字多媒体数据的解码部分。