公开(公告)号：US20050129401A1

公开(公告)日：2005-06-16

申请号：US11007017

申请日：2004-12-07

申请人： Byoung Kim ,  Hyun Yun ,  Hyeong Lee

发明人： Byoung Kim ,  Hyun Yun ,  Hyeong Lee

IPC分类号： H04J14/00 ,  H04J14/02

CPC分类号： H04J14/0227 ,  H04J14/0241 ,  H04J14/0282 ,  H04J2014/0253

摘要： Provided is an apparatus that enables improvement of efficiency of up/downstream packet tensception by reflecting a plurality of variables of packet transmission, such as a temporal variety of packet lengths, asymmetry of downstream and upstream traffics, and an instantaneous burst of a traffic amount, on a loop-back-based WDM-PON. The apparatus includes: a downstream code sensor sensing an idle code from a downstream data frame to be transmitted to an optical network terminal (ONT); a trailer transmission controller receiving an idle code sensing signal from the downstream code sensor and forming a trailer of the downstream data frame (hereinafter, a downstream trailer) by adding overhead for a reception control of the downstream data frame by the ONT and a transmission control of an upstream data frame to be loop-back-transmitted from the ONT; an upstream code sensor receiving and sensing a trailer of the loop-back-transmitted upstream data frame (hereinafter, an upstream trailer); and a trailer reception controller receiving overhead information, which is added by the ONT, for a reception control of the upstream data frame from the upstream code sensor and controlling a reception of the upstream data frame.

摘要翻译： 提供了一种能够通过反映分组传输的多个变量（诸如分组长度的时间种类，下行和上行流量的不对称性以及交通量的瞬时突发）来提高上/下分组张力的效率的装置， 在基于循环的WDM-PON上。 该装置包括：下游代码传感器，感测来自要发送到光网络终端（ONT）的下游数据帧的空闲代码; 拖车传输控制器，通过将由ONT对下游数据帧的接收控制加上开销，以及传输控制，从下游代码传感器接收空闲代码感测信号并形成下行数据帧的拖尾（以下称为下游拖车） 从ONT循环发送的上行数据帧; 上游代码传感器接收和感测环回发送的上行数据帧的尾部（以下称为上游拖车）; 以及拖车接收控制器，其接收由ONT添加的开销信息，用于从上游代码传感器接收对上游数据帧的控制，并控制上行数据帧的接收。

公开(公告)号：US20080089407A1

公开(公告)日：2008-04-17

申请号：US11871081

申请日：2007-10-11

申请人： Jin Woo Kim ,  In Choi ,  Kook Kwak ,  Jong Kim ,  Won Song ,  Hyoung Lee ,  Byoung Kim

发明人： Jin Woo Kim ,  In Choi ,  Kook Kwak ,  Jong Kim ,  Won Song ,  Hyoung Lee ,  Byoung Kim

IPC分类号： H04N11/02

CPC分类号： H04L1/0061 ,  H03M13/11 ,  H03M13/613 ,  H04L1/0071 ,  H04L12/18 ,  H04N19/61 ,  H04N19/66 ,  H04N19/70

摘要： A digital television (DTV) transmitting system includes a first frame decoder, a second frame decoder, and a frame multiplexer. The first frame decoder forms first enhanced data frames, encodes each data frame for error correction, forms a first super frame by combining the encoded first frames, and interleaves the first super frame. The second frame decoder forms second enhanced data frames, encodes each data frame for error correction, forms a second super frame by combining the encoded second frames, and interleaves the second super frame. The frame multiplexer multiplexes the interleaved first and second enhanced data frames.

摘要翻译： 数字电视（DTV）传输系统包括第一帧解码器，第二帧解码器和帧多路复用器。 第一帧解码器形成第一增强数据帧，对每个数据帧进行纠错，通过组合编码的第一帧形成第一超帧，并交织第一超帧。 第二帧解码器形成第二增强数据帧，对每个数据帧进行纠错，通过组合编码的第二帧形成第二超帧，并交织第二超帧。 帧多路复用器多路复用交错的第一和第二增强数据帧。

公开(公告)号：US20080059866A1

公开(公告)日：2008-03-06

申请号：US11764380

申请日：2007-06-18

申请人： Won Song ,  In Choi ,  Kook Kwak ,  Byoung Kim ,  Jin Kim ,  Hyoung Lee ,  Jong Kim

发明人： Won Song ,  In Choi ,  Kook Kwak ,  Byoung Kim ,  Jin Kim ,  Hyoung Lee ,  Jong Kim

IPC分类号： H03M13/47

CPC分类号： H04N21/434 ,  H04N21/235 ,  H04N21/23611 ,  H04N21/2383 ,  H04N21/4345 ,  H04N21/4346 ,  H04N21/435 ,  H04N21/4382 ,  H04N21/4623

摘要： A digital television transmitting system includes a pre-processor, a packet generator, an RS encoder, and a trellis encoder. The pre-processor pre-processes enhanced data by coding the enhanced data for first forward error correction and expanding the FEC-coded enhanced data. The packet generator generates enhanced data packets including the pre-processed enhanced data and main data packets and multiplexes the enhanced and main data packets. Each enhanced data packet includes an adaptation field in which the pre-processed enhanced data are inserted. The RS encoder performs RS encoding on the multiplexed data packets for second forward error correction, and the trellis encoder performs trellis encoding on the RS-coded data packets.

摘要翻译： 数字电视发射系统包括预处理器，分组发生器，RS编码器和网格编码器。 预处理器通过对用于第一前向纠错的增强数据进行编码并扩展FEC编码的增强数据来预处理增强数据。 分组生成器生成增强的数据分组，包括预处理的增强数据和主数据分组，并且复用增强和主数据分组。 每个增强数据分组包括其中插入预处理的增强数据的适配字段。 RS编码器对多路复用的数据分组进行RS编码，用于第二次前向纠错，网格编码器对RS编码数据分组进行格状编码。

公开(公告)号：US20080002765A1

公开(公告)日：2008-01-03

申请号：US11766020

申请日：2007-06-20

申请人： Won Song ,  In Choi ,  Kook Kwak ,  Byoung Kim ,  Jin Kim ,  Hyoung Lee ,  Jong Kim

发明人： Won Song ,  In Choi ,  Kook Kwak ,  Byoung Kim ,  Jin Kim ,  Hyoung Lee ,  Jong Kim

IPC分类号： H04B1/66

CPC分类号： H04H20/28 ,  H03M13/01 ,  H03M13/09 ,  H03M13/15 ,  H03M13/1515 ,  H03M13/23 ,  H03M13/2732 ,  H03M13/2936 ,  H03M13/2945 ,  H03M13/356 ,  H03M13/41 ,  H03M13/6331 ,  H04H60/11

摘要： A digital television transmitting system includes a pre-processor, a packet generator, an RS encoder, and a trellis encoder. The pre-processor pre-processes enhanced data by coding the enhanced data for first forward error correction (FEC) and expanding the FEC-coded enhanced data. The packet generator generates first and second enhanced data packets including the pre-processed enhanced data and main data packets and multiplexes the enhanced and main data packets. The first enhanced data packet includes an adaptation field including the pre-processed enhanced data and second enhanced data packet includes a payload region including the pre-processed enhanced data. The RS encoder performs RS encoding on the multiplexed data packets for second forward error correction (FEC), and the trellis encoder performs trellis encoding on the RS-coded data packets.

摘要翻译： 数字电视发射系统包括预处理器，分组发生器，RS编码器和网格编码器。 预处理器通过对用于第一前向纠错（FEC）的增强数据进行编码并扩展FEC编码的增强数据来预处理增强数据。 分组生成器产生包括预处理的增强数据和主数据分组的第一和第二增强数据分组，并且复用增强和主数据分组。 第一增强数据分组包括包括预处理增强数据的适配字段，第二增强数据分组包括包括预处理增强数据的有效载荷区域。 RS编码器对用于第二前向纠错（FEC）的复用数据分组执行RS编码，网格编码器对RS编码的数据分组执行格状编码。

公开(公告)号：US20070206708A1

公开(公告)日：2007-09-06

申请号：US11681554

申请日：2007-03-02

申请人： Byoung Kim ,  In Choi ,  Kook Kwak

发明人： Byoung Kim ,  In Choi ,  Kook Kwak

IPC分类号： H04L27/06 ,  H04B1/10

CPC分类号： H04L25/022 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/0065 ,  H04L1/007 ,  H04L1/0071 ,  H04L25/03159 ,  H04L2001/0093 ,  H04L2025/03522 ,  H04N7/163 ,  H04N21/235 ,  H04N21/2383 ,  H04N21/4345 ,  H04N21/435 ,  H04N21/4382 ,  H04N21/4623

摘要： A channel equalizer includes an overlap unit, an estimator, a calculator, a compensator, and a save unit. The overlap unit overlaps a group of data packets in a broadcast signal. The group data packets include a head, a body, and a tail, and a known data sequence is periodically included in the body. The estimator estimates a CIR of each data region the body using the known data sequence, and it further estimates CIRs of data regions in the head or tail using the CIRs obtained for the data regions in the body. The calculator calculates equalization coefficients based on the CIRs estimated by the estimator, and the compensator compensates channel distortion of the overlapped data using the equalization coefficients. The save unit saves the compensated data.

摘要翻译： 信道均衡器包括重叠单元，估计器，计算器，补偿器和保存单元。 重叠单元与广播信号中的一组数据分组重叠。 组数据分组包括头，身体和尾巴，并且已知的数据序列被周期地包括在体内。 估计器使用已知数据序列估计身体的每个数据区域的CIR，并且还使用为身体中的数据区域获得的CIR来估计头部或尾部中的数据区域的CIR。 计算器基于由估计器估计的CIR来计算均衡系数，并且补偿器使用均衡系数来补偿重叠数据的信道失真。 保存单元保存补偿数据。

公开(公告)号：US20070153888A1

公开(公告)日：2007-07-05

申请号：US11613923

申请日：2006-12-20

申请人： Byoung Kim ,  In Choi ,  Woo Kim ,  Jae Kim ,  Yong Suh ,  Hyoung Lee ,  Jong Kim

发明人： Byoung Kim ,  In Choi ,  Woo Kim ,  Jae Kim ,  Yong Suh ,  Hyoung Lee ,  Jong Kim

IPC分类号： H03H7/30 ,  H04K1/10

CPC分类号： H04L25/0212 ,  H04H20/30 ,  H04H20/57 ,  H04H40/18 ,  H04L25/03159 ,  H04L27/0014 ,  H04L27/2605 ,  H04L2025/03414 ,  H04N5/211 ,  H04N5/4401 ,  H04N21/2383 ,  H04N21/4382

摘要： A DTV receiver includes a tuner, a demodulator, a known sequence detector, and a frequency domain equalizer. The tuner initially receives a broadcast signal including valid data in which a known data sequence is periodically repeated. The demodulator demodulates the broadcast signal, and the known sequence detector detects the known data sequence from the demodulated signal. The frequency domain equalizer compensates channel distortion of the demodulated broadcast signal in a frequency domain using the detected known data sequence. In addition, the DTV receiver may further include a time domain equalizer which compensates channel distortion of the time domain signal, or a noise canceller which removes a predicted noise from the time domain signal.

摘要翻译： DTV接收机包括调谐器，解调器，已知序列检测器和频域均衡器。 调谐器最初接收包括有效数据的广播信号，其中周期性重复已知的数据序列。 解调器解调广播信号，已知序列检测器根据解调信号检测已知数据序列。 频域均衡器使用检测到的已知数据序列来补偿频域中解调的广播信号的信道失真。 此外，DTV接收机还可以包括补偿时域信号的信道失真的时域均衡器，或者从时域信号中去除预测噪声的噪声消除器。

公开(公告)号：US20070133990A1

公开(公告)日：2007-06-14

申请号：US11633349

申请日：2006-12-04

申请人： Byoung Kim ,  Mahn Park ,  Woo-Ram Lee ,  Tae Kim

发明人： Byoung Kim ,  Mahn Park ,  Woo-Ram Lee ,  Tae Kim

IPC分类号： H04J14/00

CPC分类号： H04J14/0226 ,  B82Y20/00 ,  G02B6/12004 ,  G02B6/4202 ,  G02B6/4204 ,  H01S5/0425 ,  H01S5/101 ,  H01S5/1014 ,  H01S5/34 ,  H01S5/5018 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0282 ,  H04J2014/0253

摘要： A Reflective Semiconductor Optical Amplifier (RSOA) for compensating for light loss in an optical link, an RSOA module for improving polarization dependency using the RSOA, and a Passive Optical Network (PON) for increasing economical efficiency and practical use of a bandwidth using the RSOA are provided. The PON includes a central office comprising a plurality of optic sources transmitting a downstream signal and a plurality of first receivers receiving an upstream signal; at least one optical network terminal (ONT) including a second receiver receiving the downstream signal and an RSOA which receives the downstream signal, remodulates the downstream signal into the upstream signal, and transmits the upstream signal in loopback mode; and a remote node interfacing the central office with the ONT. The upstream signal and the downstream signal are transmitted between the remote node and the ONT via a single optical fiber. The remote node includes an optical power splitter at its port connected to the ONT.

摘要翻译： 用于补偿光链路中的光损耗的反射半导体光放大器（RSOA），用于提高使用RSOA的极化依赖性的RSOA模块和用于提高经济效率和使用RSOA的带宽的实际使用的无源光网络（PON） 被提供。 PON包括中央局，其包括发送下行信号的多个光源和接收上行信号的多个第一接收机; 包括接收下行信号的第二接收器的至少一个光网络终端（ONT）和接收下行信号的RSOA将下行信号重新调制成上行信号，并以环回方式发送上行信号; 以及将中心局与ONT接口的远程节点。 上行信号和下行信号通过单个光纤在远程节点和ONT之间传输。 远程节点在其端口上连接有ONT的光功率分配器。

公开(公告)号：US20070076721A1

公开(公告)日：2007-04-05

申请号：US11541564

申请日：2006-10-03

申请人： Jin Kim ,  Young Kim ,  Ho Hong ,  In Choi ,  Kook Kwak ,  Hyoung Lee ,  Byoung Kim ,  Jin Kim ,  Jong Kim ,  Won Song

发明人： Jin Kim ,  Young Kim ,  Ho Hong ,  In Choi ,  Kook Kwak ,  Hyoung Lee ,  Byoung Kim ,  Jin Kim ,  Jong Kim ,  Won Song

IPC分类号： H04L12/56

CPC分类号： H04N21/435 ,  H04H20/30 ,  H04H20/55 ,  H04H20/72 ,  H04H40/27 ,  H04N21/235 ,  H04N21/23614 ,  H04N21/2362 ,  H04N21/2383 ,  H04N21/41422 ,  H04N21/4345 ,  H04N21/4348 ,  H04N21/4382 ,  H04N21/64315 ,  H04N21/8126

摘要： A digital broadcast transmitting/receiving system and a method for processing data are disclosed. The method for processing data may enhance the receiving performance of the receiving system by performing additional coding and multiplexing processes on the traffic information data and transmitting the processed data. Thus, robustness is provided to the traffic information data, thereby enabling the data to respond strongly against the channel environment which is always under constant and vast change.

摘要翻译： 公开了数字广播发送/接收系统和数据处理方法。 处理数据的方法可以通过对交通信息数据执行额外的编码和复用处理并发送处理的数据来增强接收系统的接收性能。 因此，提供了对交通信息数据的鲁棒性，从而使得数据能够对始终处于不断变化和巨大变化的信道环境产生强烈反应。

公开(公告)号：US20070076585A1

公开(公告)日：2007-04-05

申请号：US11542160

申请日：2006-10-04

申请人： Jin Kim ,  Young Kim ,  Ho Hong ,  In Choi ,  Kook Kwak ,  Hyoung Lee ,  Byoung Kim ,  Jin Kim ,  Jong Kim ,  Won Song

发明人： Jin Kim ,  Young Kim ,  Ho Hong ,  In Choi ,  Kook Kwak ,  Hyoung Lee ,  Byoung Kim ,  Jin Kim ,  Jong Kim ,  Won Song

IPC分类号： H04J11/00

CPC分类号： H04H20/44 ,  H04B1/0475 ,  H04B1/10 ,  H04H20/55 ,  H04L1/0065 ,  H04L1/0071 ,  H04L1/0083 ,  H04L2001/0093

摘要： A digital broadcast transmitting/receiving system and a method for processing data are disclosed. The method for processing data may enhance the receiving performance of the receiving system by performing additional coding and multiplexing processes on the traffic information data and transmitting the processed data. Thus, robustness is provided to the traffic information data, thereby enabling the data to respond strongly against the channel environment which is always under constant and vast change.

公开(公告)号：US20060285032A1

公开(公告)日：2006-12-21

申请号：US11208238

申请日：2005-08-17

申请人： Byoung Kim ,  Yeon Yoo

发明人： Byoung Kim ,  Yeon Yoo

IPC分类号： G02F1/1335

CPC分类号： G09G3/3413 ,  G09G2320/0247 ,  G09G2320/064

摘要： A backlight unit includes a light source part having red, green and blue light sources and a light source controller to generate a common control wave and to drive each of the red, green and blue light sources by use of a dimming signal from the outside and the common control wave. The light source controller may include a pulse width modulation controller. The common control wave may have a triangular shape. Each of the red, green and blue light sources is driven with the common triangular wave which is generated by a triangular wave generator. The size of the light source controller may be reduced and flickers may be substantially reduced.