公开(公告)号：US07366415B2

公开(公告)日：2008-04-29

申请号：US10694456

申请日：2003-10-27

申请人： Ki-Cheol Lee ,  Jun-Ho Koh ,  Yun-Je Oh

发明人： Ki-Cheol Lee ,  Jun-Ho Koh ,  Yun-Je Oh

IPC分类号： H04J14/00

CPC分类号： H04J14/0282 ,  H04H20/42 ,  H04H20/80 ,  H04J14/0226 ,  H04J14/0232 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0298

摘要： Disclosed is a wavelength division multiplexing-passive optical network (WDM-PON) that integrates broadcast and communication data, and transmit using WDM. An optical line terminal (OLT), connected to a broadcasting network and an Internet protocol (IP)-network, receives a digital broadcast signal from the broadcasting network and a first communication signal from the IP network, and transmits them as a single (broadcast/communication) integrated optical signal after photoelectric conversion, and further transfers a second communication signal from a service user to the IP network. An OLT/ONU on the user side transfers integrated optical signal from OLT to the user, and transfers channel-information data of a digital broadcast desired by the user and user data including the second communication signal from the user to the OLT. A first WDM demultiplexer WDM-demultiplexes the single signal and transfers it to the OLT/ONU. A first WDM multiplexer WDM-multiplexes the user data and transfers it to the OLT.

摘要翻译： 公开了将广播和通信数据进行集成并使用WDM进行发送的波分复用无源光网络（WDM-PON）。 连接到广播网络和因特网协议（IP）网络的光线路终端（OLT）从广播网络接收数字广播信号和来自IP网络的第一通信信号，并将其作为单个（广播） /通信）光电转换后的集成光信号，并且还将第二通信信号从服务用户传送到IP网络。 用户侧的OLT / ONU将来自OLT的集成光信号传输给用户，并且将用户所期望的数字广播的信道信息数据和包括来自用户的第二通信信号的用户数据传送到OLT。 第一WDM解复用器WDM解复用单个信号并将其传送到OLT / ONU。 第一个WDM复用器WDM复用用户数据并将其传输到OLT。

公开(公告)号：US07366271B2

公开(公告)日：2008-04-29

申请号：US10789217

申请日：2004-02-27

申请人： Chan-Yul Kim ,  Jun-Ho Koh ,  Yun-Je Oh

发明人： Chan-Yul Kim ,  Jun-Ho Koh ,  Yun-Je Oh

IPC分类号： H03D3/24

CPC分类号： H03L7/23 ,  H03L7/087 ,  H03L7/14 ,  H04L7/0087 ,  H04L7/033

摘要： A clock and data recovery (CDR) device is disclosed that is capable of recovering a clock signal from a data signal that has a variable data rate. The CDR device includes a reference clock generating section for dividing a basic clock by a first predetermined value P, synchronizing the clock and multiplying the clock by a second predetermined value Q to generate a reference clock corresponding to the variable data rate; a clock and data recovery section for receiving the transmitted data, recovering a clock and data from the received data and outputting the recovered clock and data; and a control section for generating a control signal according to the variable data rate and sending the signal to the reference clock generating section and the clock and data recovery section.

摘要翻译： 公开了一种能够从具有可变数据速率的数据信号中恢复时钟信号的时钟和数据恢复（CDR）设备。 CDR设备包括：参考时钟产生部分，用于将基本时钟除以第一预定值P，使时钟同步并将时钟乘以第二预定值Q，以产生对应于可变数据速率的参考时钟; 时钟和数据恢复部分，用于接收所发送的数据，从所接收的数据中恢复时钟和数据并输出恢复的时钟和数据; 以及控制部分，用于根据可变数据速率产生控制信号，并将信号发送到参考时钟产生部分和时钟和数据恢复部分。

公开(公告)号：US20070014279A1

公开(公告)日：2007-01-18

申请号：US11481588

申请日：2006-07-06

申请人： Si Wang ,  Kwan-Soo Lee ,  Yun-Je Oh ,  Jun-Ho Koh ,  Sang-Ho Kim ,  Jae-Hun Cho

发明人： Si Wang ,  Kwan-Soo Lee ,  Yun-Je Oh ,  Jun-Ho Koh ,  Sang-Ho Kim ,  Jae-Hun Cho

IPC分类号： H04L12/28 ,  H04L12/56

CPC分类号： H04L49/351 ,  H04L12/52 ,  H04L49/206

摘要： A residential Ethernet switching device for sub frame-based switching in a residential Ethernet system is provided. The device includes a plurality of reception data path processors for parsing a residential Ethernet frame inputted to the residential Ethernet switching device, as respective residential Ethernet sub frames, and outputting the parsed residential Ethernet sub frames, a switch fabric for switching the residential Ethernet sub frames inputted through the plurality of reception data path processors, a plurality of transmission data path processors for providing an output path for multiplexing and outputting the residential Ethernet sub frames switched through the switch fabric, and a local cycle counter connected to the plurality of reception data path processors, the switch fabric, and the plurality of transmission data path processors, and providing cycle counter information on the respective residential Ethernet sub-frames.

摘要翻译： 提供住宅以太网系统中用于子帧交换的住宅以太网交换设备。 该设备包括多个接收数据路径处理器，用于解析输入到住宅以太网交换设备的住宅以太网帧作为相应的住宅以太网子帧，并输出解析的住宅以太网子帧，用于切换住宅以太网子帧 通过多个接收数据路径处理器输入的多个传输数据路径处理器，用于提供用于复用和输出通过交换结构切换的住宅以太网子帧的输出路径的多个传输数据路径处理器，以及连接到多个接收数据路径的本地周期计数器 处理器，交换结构和多个传输数据路径处理器，并且在各个住宅以太网子帧上提供周期计数器信息。

公开(公告)号：US20060230147A1

公开(公告)日：2006-10-12

申请号：US11399867

申请日：2006-04-07

申请人： Jae-Hun Cho ,  Jong-Ho Yoon ,  Sang-Ho Kim ,  Yun-Je Oh ,  Jun-Ho Koh ,  Hee-Kyung Choi

发明人： Jae-Hun Cho ,  Jong-Ho Yoon ,  Sang-Ho Kim ,  Yun-Je Oh ,  Jun-Ho Koh ,  Hee-Kyung Choi

IPC分类号： G06F15/173

CPC分类号： H04L12/66

摘要： A method for transmitting asynchronous data includes including: comparing a size of asynchronous data with that of an empty transmission area; inserting the asynchronous data into the empty transmission area when the asynchronous data has a size smaller than or equal to that of the empty transmission area; determining if the empty transmission area has a size larger than a predetermined threshold value when the asynchronous data has a size larger than that of the empty transmission area; transmitting the asynchronous data with the empty transmission area left when the empty transmission area has a size smaller than the predetermined threshold value; and segmenting the asynchronous data according to the size of the empty transmission area when the empty transmission area has a size larger than the predetermined threshold value, inserting the segmented asynchronous data into the empty transmission area, and transmitting remaining segmented asynchronous data in a subsequent transmission cycle.

摘要翻译： 用于发送异步数据的方法包括：将异步数据的大小与空的传输区域的大小进行比较; 当异步数据的大小小于或等于空传输区域的大小时，将异步数据插入空传输区域; 当所述异步数据的尺寸大于所述空的传输区域的大小时，确定所述空的传输区域是否具有大于预定阈值的大小; 当所述空传输区域具有小于所述预定阈值的大小时，向所述空传输区域发送所述异步数据; 并且当所述空传输区域具有大于所述预定阈值的大小时，根据所述空传输区域的大小来分割所述异步数据，将所述分段的异步数据插入所述空传输区域，以及在随后的传输中发送剩余的分段异步数据 周期。

公开(公告)号：US20050160418A1

公开(公告)日：2005-07-21

申请号：US10995451

申请日：2004-11-23

申请人： Jee-Won Jeong ,  Kug Shin ,  Jun-Ho Koh ,  Young-Seok Kim ,  Yun-Je Oh

发明人： Jee-Won Jeong ,  Kug Shin ,  Jun-Ho Koh ,  Young-Seok Kim ,  Yun-Je Oh

IPC分类号： G06F11/00 ,  G06F9/44 ,  G06F9/445 ,  H04L12/16

CPC分类号： H04L67/34 ,  G06F8/65

摘要： An embedded system using binary-position information and capable of updating software more promptly is disclosed. The embedded system includes a server for receiving software-version information from a target system for a comparison of a binary image associated with the received software-version information with a binary image corresponding to a new software version and generating a changed binary image and position information in the data to be downloaded, and a target system for analyzing the data downloaded from the server and updating the binary image with reference to the position information.

摘要翻译： 公开了一种使用二进制位置信息并能更快更新软件的嵌入式系统。 嵌入式系统包括用于从目标系统接收软件版本信息的服务器，用于将与接收到的软件版本信息相关联的二进制图像与对应于新软件版本的二进制图像进行比较，并生成改变的二进制图像和位置信息 在要下载的数据中，以及用于分析从服务器下载的数据并参照位置信息更新二进制图像的目标系统。

公开(公告)号：US20050101246A1

公开(公告)日：2005-05-12

申请号：US10706494

申请日：2003-11-12

申请人： Do-In Choi ,  Yun-Je Oh ,  Jun-Ho Koh

发明人： Do-In Choi ,  Yun-Je Oh ,  Jun-Ho Koh

IPC分类号： H04N7/10 ,  H04H20/00 ,  H04J3/00 ,  H04J3/04 ,  H04L12/28 ,  H04N7/16 ,  H04N21/61 ,  H04H1/00

CPC分类号： H04N21/6587 ,  H04N7/17318 ,  H04N21/23608 ,  H04N21/2362 ,  H04N21/472 ,  H04N21/64322

摘要： A subscriber distribution system for distributing broadcasting data to subscribers through a subscriber network. The subscriber distribution system has a PID filter section for checking contents of an inputted MPEG2 MPTS frame and splitting the MPEG2 MPTS frame into SPTS, a table regenerator for regenerating a PAT and a PMT that correspond with the SPTS by changing contents in the PAT and the PMT. An SPTS splitting and storing section stores the SPTS at high speed in a memory area of a buffer, which is assigned to subscribers according to PIDS. A subscriber distribution section selecting the SPTS requested by subscribers and storing the SPTS in the memory area of the buffer assigned to subscribers. A control section receives MPTS information from a higher network to provide MPTS information to the PID filter section and the table regenerator, and receives a request for a program from subscribers, and transfers the request to the subscriber distribution section.

摘要翻译： 一种用户分配系统，用于通过用户网络向用户分发广播数据。 用户分配系统具有用于检查输入的MPEG2 MPTS帧的内容并将MPEG2 MPTS帧分割成SPTS的PID滤波器部分，用于通过改变PAT中的内容来再现与PTS对应的PAT和PMT的表再生器， PMT。 SPTS分割存储部分将SPTS高速存储在根据PIDS分配给用户的缓冲器的存储区域中。 用户分配部分，选择由用户请求的SPTS，并将SPTS存储在分配给用户的缓冲器的存储器区域中。 控制部分从较高的网络接收MPTS信息以向PID过滤部分和表再生器提供MPTS信息，并且从订户接收节目的请求，并将该请求传送到用户分发部分。

公开(公告)号：US20050047341A1

公开(公告)日：2005-03-03

申请号：US10771942

申请日：2004-02-04

申请人： Yong-Deok Kim ,  Jun-Ho Koh ,  Chan-Yul Kim ,  Yun-Je Oh

发明人： Yong-Deok Kim ,  Jun-Ho Koh ,  Chan-Yul Kim ,  Yun-Je Oh

IPC分类号： H04N7/12 ,  H04L12/28

CPC分类号： H04N21/23611

摘要： Disclosed is a device for filtering out a null packet in a data stream for example an MPEG-2 TS (Transport Stream) to avoid bandwidth waste when it is transmitted to a backbone network. The device includes a plurality of receiving interfaces, a filter unit, and a controller. The receiving interfaces receive parallel data, such as DVB-ASI (Digital Video Broadcasting-Asynchronous Serial Interface) inputs as channel-by-channel MPEG-2 data. The filter unit counts the respective numbers of data packets and non-data packets of the data input from the receiving interfaces and filters a null packet in the data. A network transmission unit transmits the filtered data to a backbone network. The controller calculates a bit rate based on both of the count numbers received from the filter unit.

摘要翻译： 公开了一种用于过滤出例如MPEG-2TS（传输流）的数据流中的零分组的装置，以避免在传输到骨干网络时的带宽浪费。 该装置包括多个接收接口，滤波器单元和控制器。 接收接口接收并行数据，例如作为逐个通道MPEG-2数据的DVB-ASI（数字视频广播 - 异步串行接口）输入。 滤波器单元对从接收接口输入的数据的数据分组和非数据分组的数量进行计数，并对数据中的零分组进行过滤。 网络传输单元将过滤的数据发送到骨干网络。 控制器基于从滤波器单元接收的两个计数值计算比特率。

公开(公告)号：US20050008370A1

公开(公告)日：2005-01-13

申请号：US10754029

申请日：2004-01-08

申请人： Jong-Kwon Kim ,  Jun-Ho Koh ,  Yun-Je Oh

发明人： Jong-Kwon Kim ,  Jun-Ho Koh ,  Yun-Je Oh

IPC分类号： G02B6/12 ,  G02B6/293 ,  G02B6/34 ,  H04J14/02

CPC分类号： G02B6/12021 ,  G02B6/2932 ,  G02B6/29383 ,  H04J14/0216

摘要： Disclosed is an optical add/drop multiplexer connected to an optical fiber for transmission of a multiplexed optical signal, and adapted to add a channel to the optical signal or to drop a channel from the optical signal. The optical add/drop multiplexer includes a wavelength division multiplexing/demultiplexing (WDM) unit connected to the optical fiber, having input and output ports providing a path for a multiplexed optical signal, and a plurality of demultiplexing ports respectively providing paths for demultiplexed channels. A plurality of add/drop multiplexer (ADM) units respectively connected to the demultiplexing ports of the WDM unit, each of the ADM units including first and second circulators each adapted to output a channel, input to a higher-order port thereof, to a lower-order port, and a reflector for passing or reflecting a channel inputted thereto. The first circulator receives a channel at a second port and outputs the channel to a third port connected to the reflector. The first circulator receives, at the third port, the channel from the reflector, and outputs the secondarily received channel to a fourth port, thereby dropping the channel. The second circulator receives a channel at a first port, outputs the received channel to a second port connected to the reflector, receives, at the second port thereof, the channel from the reflector, and outputs the secondarily received channel to a third port connected to a first port of the first circulator, thereby adding the channel.

摘要翻译： 公开了一种连接到光纤的光分插复用器，用于传输复用的光信号，并且适于将信道添加到光信号或从光信号中丢弃信道。 光分插复用器包括连接到光纤的波分复用/解复用（WDM）单元，具有提供复用光信号的路径的输入和输出端口，以及分别提供多路复用信道路径的多个解复用端口。 分别连接到WDM单元的解复用端口的多个分插复用器（ADM）单元，每个ADM单元包括第一和第二循环器，每个循环器适于输出到其高阶端口的通道，输入到其高阶端口 低位端口，以及用于使输入的通道的通过或反射的反射器。 第一循环器在第二端口处接收通道并将通道输出到连接到反射器的第三端口。 第一循环器在第三端口处从反射器接收信道，并将其次接收的信道输出到第四端口，从而丢弃信道。 第二循环器在第一端口处接收通道，将接收的通道输出到连接到反射器的第二端口，在其第二端口处从反射器接收通道，并将其次接收的通道输出到连接到 第一循环器的第一端口，从而增加通道。

公开(公告)号：US07711250B2

公开(公告)日：2010-05-04

申请号：US11331980

申请日：2006-01-13

申请人： Jeong-Seok Choi ,  Chang-Sup Shim ,  Yun-Je Oh ,  Jun-Ho Koh ,  Jeong-Rok Park ,  Kwan-Lae Kim

发明人： Jeong-Seok Choi ,  Chang-Sup Shim ,  Yun-Je Oh ,  Jun-Ho Koh ,  Jeong-Rok Park ,  Kwan-Lae Kim

IPC分类号： H04N7/26

CPC分类号： H04N21/2368 ,  H04N21/4316 ,  H04N21/434 ,  H04N21/4341 ,  H04N21/4345 ,  H04N21/4347

摘要： Disclosed is an apparatus and method for constructing and broadcasting a multi-screen broadcasting program by using a transport stream in a digital broadcasting, and for decoding the constructed transport stream to restore image and voice signals. The method includes the steps of analyzing a program access table (PAT) of broadcasting data to determine whether there are at least two image packets, performing signal decoding when the input broadcasting data is a single screen program having one image packet, performing a multi-decoding when the input broadcasting data is a multi-screen program having at least two image packets.

摘要翻译： 公开了一种通过使用数字广播中的传输流来构建和广播多屏幕广播节目的装置和方法，并且用于解码构造的传输流以恢复图像和语音信号。 该方法包括以下步骤：分析广播数据的节目访问表（PAT）以确定是否存在至少两个图像分组，当输入的广播数据是具有一个图像分组的单个屏幕节目时执行信号解码， 当输入广播数据是具有至少两个图像分组的多屏幕程序时进行解码。

公开(公告)号：US07499471B2

公开(公告)日：2009-03-03

申请号：US10941711

申请日：2004-09-15

申请人： Seung-Jin Lee ,  Yun-Je Oh ,  Jun-Ho Koh ,  Jae-Hun Cho

发明人： Seung-Jin Lee ,  Yun-Je Oh ,  Jun-Ho Koh ,  Jae-Hun Cho

IPC分类号： H04J4/00

CPC分类号： H04N21/2365 ,  H04J3/07 ,  H04J3/1694 ,  H04N21/235 ,  H04N21/23614 ,  H04N21/4347 ,  H04N21/4348

摘要： A TDM (Time Division Multiplexing) frame applicable to digital broadcast data transmission in an FTTH (Fiber To The Home) system and a method for transmitting and receiving the TDM frame is disclosed. The TDM frame and methods are applicable to transmit a plurality of digital broadcast data units having different synchronous clocks using a simple format. The TDM frame for multiplexing digital broadcast and communication signals having different synchronous signals in a broadcast/communication convergence system using an FTTH system comprises a framing bit field for identifying a start and end of the TDM frame seamlessly provided; two MPTS (Multiple-Program Transport Stream) fields respectively having at least one bit assigned for digital broadcast data transmission wherein an amount of input digital broadcast data is adjusted according to a difference between a multiplexing rate and an input rate associated with the digital broadcast data in the digital broadcast data transmission; and a fast Ethernet field having at least one bit assigned for communication data transmission.

摘要翻译： 公开了适用于FTTH（Fiber To Home）系统中的数字广播数据传输的TDM（时分复用）帧以及TDM帧的发送和接收方法。 TDM帧和方法适用于使用简单格式发送具有不同同步时钟的多个数字广播数据单元。 用于在使用FTTH系统的广播/通信收敛系统中复用具有不同同步信号的数字广播和通信信号的TDM帧包括用于识别无缝提供的TDM帧的开始和结束的成帧位域; 分别具有分配给数字广播数据传输的至少一个比特的两个MPTS（多节目传输流）字段，其中根据复用率和与数字广播数据相关联的输入速率之间的差异来调整输入数字广播数据的量 在数字广播数据传输中; 以及具有至少一个分配给通信数据传输的位的快速以太网字段。