公开(公告)号：US20060115270A1

公开(公告)日：2006-06-01

申请号：US11197176

申请日：2005-08-04

申请人： Sang-Ho Kim ,  Chang-Sup Shim ,  Yun-Je Oh ,  Seong-Taek Hwang

发明人： Sang-Ho Kim ,  Chang-Sup Shim ,  Yun-Je Oh ,  Seong-Taek Hwang

IPC分类号： H04J14/00

CPC分类号： H04J14/0227 ,  H04B10/071 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282

摘要： A wavelength-division multiplexing passive optical network (WDM-PON) comprising a central office for generating monitor light and multiplexed downstream optical signals to be out and detecting upstream optical signals, the central office including a signal monitoring unit monitoring based on fed-back monitor light if the wavelengths of the upstream optical signals and the wavelengths of the downstream optical signals change, a plurality of subscriber units for detecting corresponding downstream optical signals and generating upstream optical signals, a remote node for reflecting the monitor light to the central office, de-multiplexing multiplexed downstream optical signals so as to output the downstream optical signals to the corresponding subscriber units, and multiplexing the upstream optical signals so as to output the upstream optical signals to the central office, a first optical path for linking the central office to the remote node, and a plurality of second optical paths for linking the remote node to the subscriber units, respectively.

摘要翻译： 一种波分复用无源光网络（WDM-PON），包括用于产生监控光的中心局和多路复用的下行光信号，以便检测上行光信号，该中心局包括基于反馈监视器的信号监控单元 如果上游光信号的波长和下游光信号的波长发生变化，则用于检测相应的下行光信号并产生上行光信号的多个用户单元，用于将监控光反射到中心局的远端节点 复用下行光信号，以将下行光信号输出到对应的用户单元，并复用上行光信号，以将上行光信号输出到中心局;第一光路，用于将中心局连接到 远程节点和用于li的多个第二光路 将远程节点分别分配给用户单元。

公开(公告)号：US20050122573A1

公开(公告)日：2005-06-09

申请号：US10869428

申请日：2004-06-16

申请人： Sang-Ho Kim ,  Seong-Taek Hwang ,  Yun-Je Oh

发明人： Sang-Ho Kim ,  Seong-Taek Hwang ,  Yun-Je Oh

IPC分类号： H01S3/10 ,  G02B6/293 ,  H01S3/00 ,  H01S3/06 ,  H01S3/067 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/16 ,  H01S3/23

CPC分类号： H01S3/06754 ,  H01S3/005 ,  H01S3/0064 ,  H01S3/0078 ,  H01S3/06766 ,  H01S3/0677 ,  H01S3/094023 ,  H01S3/0941 ,  H01S3/1608 ,  H01S3/1613 ,  H01S3/1616 ,  H04B10/506

摘要： A dual-port broadband light source is disclosed. In the dual-port broadband light source, a first beam splitter splits a first ASE at a first ratio into the second and third light paths and outputs the first ASE received from the second light path to the first light path. A second beam splitter splits a second ASE at a second ratio into the second and fourth light sources and outputs the second ASE received from the second light path to the first light path. A first reflector reflects input first and second ASEs in the first light path, and a second reflector reflects input first and second ASEs in the second light path. A first gain medium generates the first ASE between the first reflector and the first beam splitter, and a second gain medium generates the second ASE between the first reflector and the second beam splitter.

摘要翻译： 公开了一种双端口宽带光源。 在双端口宽带光源中，第一分束器以第一比率将第一ASE分离成第二和第三光路，并将从第二光路接收的第一ASE输出到第一光路。 第二分束器以第二比例将第二ASE分成第二和第四光源，并将从第二光路接收的第二ASE输出到第一光路。 第一反射器在第一光路中反射输入的第一和第二ASE，并且第二反射器在第二光路中反射输入的第一和第二ASE。 第一增益介质在第一反射器和第一分束器之间产生第一ASE，第二增益介质在第一反射器和第二分束器之间产生第二ASE。

公开(公告)号：US07904106B2

公开(公告)日：2011-03-08

申请号：US11974402

申请日：2007-10-12

申请人： Shuangfeng Han ,  Seong-Taek Hwang ,  Hoon Kim ,  Sang-Ho Kim ,  Jae-Hun Cho ,  Jae-Hoon Lee ,  Ki-Uk Song

发明人： Shuangfeng Han ,  Seong-Taek Hwang ,  Hoon Kim ,  Sang-Ho Kim ,  Jae-Hun Cho ,  Jae-Hoon Lee ,  Ki-Uk Song

IPC分类号： H04B1/04 ,  H04B7/02 ,  H04B7/00 ,  H04B7/185 ,  H04B1/02 ,  H04B17/00 ,  H04B1/66 ,  H04B3/46 ,  H03C7/02 ,  H04M1/00 ,  H04L27/00 ,  H01Q3/00

CPC分类号： H04W52/42 ,  H04B7/043 ,  H04B7/0617 ,  H04B7/0691 ,  H04L1/0625 ,  H04L1/0668 ,  H04W52/04

摘要： Disclosed is an apparatus and method for adaptively allocating transmission power for beamforming combined with orthogonal space-time block codes (OSTBC) in a distributed wireless communication system, the apparatus comprising: a plurality of sub-arrays for beamforming, which are geographically distributed and each of which comprises a plurality of distributed antennas placed in random groups; and a central processing unit for identifying performances of subsets by applying a predetermined power allocation scheme according to subsets which can be obtained by combining the sub-arrays, by means of a Nakagami fading parameter and information about large-scale fading of each of the sub-arrays, fed back from a receiving party, for determining a subset having a best performance as an optimal subset according to the identified performances, and for performing power allocation based on the subset set as the optimal subset.

摘要翻译： 公开了一种用于在分布式无线通信系统中自适应地分配与正交空时块码（OSTBC）组合的波束成形的发射功率的装置和方法，该装置包括：多个用于波束成形的子阵列，其在地理上分布并且每个 其中包括放置在随机组中的多个分布式天线; 以及中央处理单元，用于通过应用根据可以通过组合子阵列获得的子集的预定功率分配方案，通过Nakagami衰落参数和关于每个子级的大规模衰落的信息来应用子集的性能 - 从接收方反馈的用于根据所识别的性能确定具有最佳性能的子集作为最佳子集的子阵列，以及用于基于所述子集作为所述最佳子集执行功率分配。

公开(公告)号：US20080117961A1

公开(公告)日：2008-05-22

申请号：US11974402

申请日：2007-10-12

申请人： Shuangfeng Han ,  Seong-Taek Hwang ,  Hoon Kim ,  Sang-Ho Kim ,  Jae-Hun Cho ,  Jae-Hoon Lee ,  Ki-Uk Song

发明人： Shuangfeng Han ,  Seong-Taek Hwang ,  Hoon Kim ,  Sang-Ho Kim ,  Jae-Hun Cho ,  Jae-Hoon Lee ,  Ki-Uk Song

IPC分类号： H04L27/00

CPC分类号： H04W52/42 ,  H04B7/043 ,  H04B7/0617 ,  H04B7/0691 ,  H04L1/0625 ,  H04L1/0668 ,  H04W52/04

摘要： Disclosed is an apparatus and method for adaptively allocating transmission power for beamforming combined with orthogonal space-time block codes (OSTBC) in a distributed wireless communication system, the apparatus comprising: a plurality of sub-arrays for beamforming, which are geographically distributed and each of which comprises a plurality of distributed antennas placed in random groups; and a central processing unit for identifying performances of subsets by applying a predetermined power allocation scheme according to subsets which can be obtained by combining the sub-arrays, by means of a Nakagami fading parameter and information about large-scale fading of each of the sub-arrays, fed back from a receiving party, for determining a subset having a best performance as an optimal subset according to the identified performances, and for performing power allocation based on the subset set as the optimal subset.

摘要翻译： 公开了一种用于在分布式无线通信系统中自适应地分配与正交空时块码（OSTBC）组合的波束成形的发射功率的装置和方法，该装置包括：多个用于波束成形的子阵列，其在地理上分布并且每个 其中包括放置在随机组中的多个分布式天线; 以及中央处理单元，用于通过应用根据可以通过组合子阵列获得的子集的预定功率分配方案，通过Nakagami衰落参数和关于每个子级的大规模衰落的信息来应用子集的性能 - 从接收方反馈的用于根据所识别的性能确定具有最佳性能的子集作为最佳子集的子阵列，以及用于基于所述子集作为所述最佳子集执行功率分配。

公开(公告)号：US06909848B2

公开(公告)日：2005-06-21

申请号：US09852923

申请日：2001-05-10

申请人： Sang-Ho Kim ,  Jun-Ho Koh ,  Kwang-Jin Yang

发明人： Sang-Ho Kim ,  Jun-Ho Koh ,  Kwang-Jin Yang

IPC分类号： H04B10/07 ,  H04B10/29 ,  H04B17/00 ,  H04J14/00 ,  H04J14/02 ,  H04Q3/52 ,  H04Q11/04

CPC分类号： H04J14/02

摘要： A self-healing bit rate transducer in an optical transmission system includes a demultiplexer for demultiplexing optical signals into different wavelength channels; bit rate receivers for converting the demultiplexed optical signals into the corresponding electrical signals, for generating a bit-rate error signal, and for generating a temperature reference signal; a detecting section for generating a signal indicative of the bit rate of the optical signals outputted from the demultiplexer; and a controller for comparing the detected bit rate with a predetermined data to generate a control signal that is used to adjust the bit rate of the respective bit rate receiver.

摘要翻译： 光传输系统中的自修复比特率传感器包括用于将光信号解复用到不同波长信道中的解复用器; 比特率接收机，用于将解复用的光信号转换成对应的电信号，用于产生比特率误差信号，并用于产生温度参考信号; 检测部分，用于产生指示从解复用器输出的光信号的比特率的信号; 以及用于将检测到的比特率与预定数据进行比较以产生用于调整各个比特率接收机的比特率的控制信号的控制器。

公开(公告)号：US06829436B2

公开(公告)日：2004-12-07

申请号：US09750365

申请日：2000-12-28

申请人： Jun-Ho Koh ,  Sang-Ho Kim ,  Byung-Jik Kim ,  Kwang-Jin Yang

发明人： Jun-Ho Koh ,  Sang-Ho Kim ,  Byung-Jik Kim ,  Kwang-Jin Yang

IPC分类号： H04J1402

CPC分类号： H04J3/0685 ,  H04J2203/0032 ,  H04J2203/0089 ,  H04L25/0262 ,  H04Q11/0005 ,  H04Q11/0478

摘要： A cross-connect device in an optical network which includes a demultiplexer for demultiplexing an input optical signal by channels; a plurality of arbitrary transmission optical receivers for converting the optical channel signals received from the demultiplexer to electrical signals and for recovering a clock signal and data according to a reference clock signal generated at the transmission rate of the electrical signals; a cross-connect switch for path-routing the electrical signals received from the arbitrary transmission optical receivers; a controller for controlling the path-routing of the cross-connect switch; a plurality of arbitrary transmission optical transmitters for converting the electrical signal received from each output port of the cross-connect switch to an optical signal; and, a multiplexer for multiplexing the optical signals received from the arbitrary transmission optical transmitters onto one stand of optical fiber.

摘要翻译： 一种光网络中的交叉连接装置，包括用于通过信道解复用输入光信号的解复用器; 多个任意传输光接收机，用于将从解复用器接收的光信道信号转换为电信号，并根据以电信号的传输速率产生的参考时钟信号来恢复时钟信号和数据; 交叉连接开关，用于对从任意传输光接收器接收的电信号进行路径路由; 用于控制交叉连接交换机的路径路由的控制器; 多个任意传输光发射机，用于将从交叉连接交换机的每个输出端口接收的电信号转换为光信号; 以及多路复用器，用于将从任意传输光发射机接收的光信号复用到光纤的一个支架上。

公开(公告)号：US07382784B2

公开(公告)日：2008-06-03

申请号：US10682155

申请日：2003-10-09

申请人： Kyu-Hyung Cho ,  Yong-Deok Kim ,  Sang-Ho Kim ,  Jun-Ho Koh

发明人： Kyu-Hyung Cho ,  Yong-Deok Kim ,  Sang-Ho Kim ,  Jun-Ho Koh

IPC分类号： H04L12/28

CPC分类号： H04H20/69 ,  H04L12/5601 ,  H04L2012/5605 ,  H04L2012/5642 ,  H04L2012/5651 ,  H04N7/22

摘要： An optical transmission network is disclosed that classifies digital broadcast channel data according to virtual channel connection (VCC) before transmission. In the optical transmission network, an optical signal receiver converts an optical signal from an optical line terminal (OLT) into an ATM cell that is classified according to the VCC. A VCC-based ATM cell classifier detects header information and a payload part from the classified ATM cell of each VCC. PID analyzers receive a payload part of an ATM cell corresponding to one VCC from the VCC-based ATM cell classifier, extract PID of each broadcast channel from digital broadcast channel data included in the payload part, and output specific broadcast channel data in the broadcast channel data included in the payload part. A switch receives broadcast channel data output from the PID analyzers and switches the received broadcast channel data to a broadcast channel desired by each subscriber. The controller updates broadcast channel information by receiving header information of the classified ATM cell of each VCC from the VCC-based ATM cell classifier, receives the broadcast channel desired by the subscriber, and controls the PID analyzers to output the desired broadcast channel according to VCC information with the desired broadcast channel included therein so that the output broadcast channel is matched to the subscriber.

摘要翻译： 公开了一种光传输网络，其在传输之前根据虚拟信道连接（VCC）对数字广播信道数据进行分类。 在光传输网络中，光信号接收机将来自光线路终端（OLT）的光信号转换为根据VCC分类的ATM信元。 基于VCC的ATM信元分类器从每个VCC分类的ATM信元检测报头信息和净荷部分。 PID分析器从基于VCC的ATM信元分类器接收对应于一个VCC的ATM信元的有效载荷部分，从包括在有效载荷部分中的数字广播信道数据中提取每个广播信道的PID，并且在广播信道中输出特定的广播信道数据 有效载荷部分中包含的数据。 交换机接收从PID分析器输出的广播信道数据，并将接收到的广播信道数据切换到每个用户期望的广播信道。 控制器通过从基于VCC的ATM信元分类器接收每个VCC的分类的ATM信元的报头信息来更新广播信道信息，接收用户期望的广播信道，并且控制PID分析器根据VCC输出所需的广播信道 具有包含在其中的所需广播频道的信息，使得输出广播频道与用户匹配。

公开(公告)号：US20060165173A1

公开(公告)日：2006-07-27

申请号：US11337326

申请日：2006-01-23

申请人： Sang-Ho Kim ,  Jun-Ho Koh ,  Jong-Kwon Kim ,  Sang-Mo Hong

发明人： Sang-Ho Kim ,  Jun-Ho Koh ,  Jong-Kwon Kim ,  Sang-Mo Hong

IPC分类号： H04N7/12 ,  H04N11/04 ,  H04B1/66 ,  H04N11/02

CPC分类号： H04N21/47205 ,  H04N21/2343 ,  H04N21/234309 ,  H04N21/234318 ,  H04N21/2362 ,  H04N21/2381 ,  H04N21/45452 ,  H04N21/6125

摘要： Disclosed is a method of managing a Motion Picture Expert Group-2 Transport Stream (MPEG-2 TS) in an object unit of an MPEG-4 by efficiently matching the MPEG-4 with the MPEG-2 TS, in order to broadcast an internet protocol (IP). The method manages MPEG-4 object information in an MPEG-2 TS status, by adding the object information to a program map table (PMT) in the course of converting an MPEG-4 data into an MPEG-2 TS. The method includes the steps of: a) receiving an MPEG-4 SL (Sync Layer) to be transmitted as an MPEG-2 TS; b) acquiring an object information from the MPEG-4 SL; c) aligning the acquired object information corresponding to a program map table (PMT) of the MPEG-2 TS; and d) creating an MPEG-2 TS which has the PMT corresponding to the object information.

摘要翻译： 公开了通过将MPEG-4与MPEG-2 TS有效匹配来管理MPEG-4的对象单元中的运动图像专家组-2传输流（MPEG-2 TS）的方法，以便广播互联网 协议（IP）。 该方法通过在将MPEG-4数据转换为MPEG-2 TS的过程中将对象信息添加到节目映射表（PMT）来管理MPEG-2 TS状态的MPEG-4对象信息。 该方法包括以下步骤：a）接收要作为MPEG-2 TS发送的MPEG-4SL（Sync Layer） b）从MPEG-4 SL获取对象信息; c）对准与MPEG-2TS的节目映射表（PMT）相对应的所获取的对象信息; 以及d）创建具有对象信息的PMT的MPEG-2TS。

公开(公告)号：US20050013611A1

公开(公告)日：2005-01-20

申请号：US10763985

申请日：2004-01-23

申请人： Chang-Hyun Lee ,  Chan-Yul Kim ,  Sang-Ho Kim ,  Jun-Ho Koh

发明人： Chang-Hyun Lee ,  Chan-Yul Kim ,  Sang-Ho Kim ,  Jun-Ho Koh

IPC分类号： H04L12/28 ,  H04J3/16 ,  H04J14/00

CPC分类号： H04J3/1617

摘要： An image data transmission apparatus in an optical subscriber network is disclosed, which comprises: one optical line termination for receiving MPTS data from an outside, packetizing the received MPTS data into HDLC packets, and transmitting the HDLC packets as optical signals; and a plurality of ONUs connected to the OLT, the ONU receiving the optical signal transmitted from the OLT, converting the optical signal into an electrical signal, extracting MPTS data from the converted HDLC packet, and switching the MPTS data to each subscriber. The image data transmission apparatus processes HDLC-based MPTS data, increases degree of integration of data, and therefore enables the optical subscriber network to include more channels.

摘要翻译： 公开了一种光用户网络中的图像数据传输装置，包括：一个光线路终端，用于从外部接收MPTS数据，将接收到的MPTS数据分组成HDLC分组，并将HDLC分组作为光信号发送; 以及连接到OLT的多个ONU，ONU接收从OLT发送的光信号，将光信号转换成电信号，从转换的HDLC分组中提取MPTS数据，并将MPTS数据切换到每个用户。 图像数据发送装置处理基于HDLC的MPTS数据，增加数据的集成度，因此使得光用户网络能够包括更多的信道。

公开(公告)号：US09805225B2

公开(公告)日：2017-10-31

申请号：US13596810

申请日：2012-08-28

申请人： Sang-Ho Kim ,  Seong-Taek Hwang ,  Jeong-Wan Park

发明人： Sang-Ho Kim ,  Seong-Taek Hwang ,  Jeong-Wan Park

IPC分类号： G06K7/10

CPC分类号： G06K7/10 ,  G06K7/10881 ,  G06K7/1093

摘要： A method for controlling a character and barcode recognition apparatus by receiving an image including at least one text image and at least one barcode, dividing the received image into a text area and a barcode area, the text area including the at least one text image and the barcode area including the at least one barcode, recognizing at least one character in the text area by performing character recognition on the text area, and recognizing the at least one barcode in the barcode area by performing barcode recognition on the barcode area.