公开(公告)号：US20060018334A1

公开(公告)日：2006-01-26

申请号：US11005590

申请日：2004-12-06

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

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

IPC分类号： H04J3/26

CPC分类号： H04J14/0226 ,  H04H20/69 ,  H04J14/0232 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282 ,  H04L12/2801 ,  H04N21/43632 ,  H04Q11/0067 ,  H04Q2011/0016

摘要： A communication/broadcast multiplexer and demultiplexer for multiplexing and demultiplexing communication and broadcast signals using a specific transmission standard in an optical network system that integrates broadcast and communication services using a channel selection technique. The multiplexer comprises a broadcast data input unit, a communication data input unit, and a synchronous Ethernet framer. The broadcast data input unit receives broadcast data switched on a subscriber basis through a broadcast switch in an optical line terminal (OLT) in the system, and transfers it as a synchronous data frame to the synchronous Ethernet framer. The communication data input unit receives communication data on a subscriber basis through an Ethernet switch in the OLT and transfers it as an asynchronous data frame to the synchronous Ethernet framer. The synchronous Ethernet framer converts both the received synchronous and asynchronous data frames into a TDM synchronous Ethernet frame, and outputs the TDM synchronous Ethernet frame.

摘要翻译： 一种通信/广播多路复用器和解复用器，用于在使用信道选择技术集成广播和通信服务的光网络系统中使用特定传输标准来复用和解复用通信和广播信号。 多路复用器包括广播数据输入单元，通信数据输入单元和同步以太网成帧器。 广播数据输入单元通过系统中的光线路终端（OLT）中的广播交换机接收基于用户切换的广播数据，并将其作为同步数据帧传送到同步以太网成帧器。 通信数据输入单元通过OLT中的以太网交换机在用户基础上接收通信数据，并将其作为异步数据帧传送到同步以太网成帧器。 同步以太网成帧器将接收到的同步和异步数据帧转换为TDM同步以太网帧，并输出TDM同步以太网帧。

公开(公告)号：US20050025485A1

公开(公告)日：2005-02-03

申请号：US10776726

申请日：2004-02-11

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

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

IPC分类号： H04J1/02 ,  H04B10/00 ,  H04B10/2581 ,  H04H1/02 ,  H04H20/69 ,  H04J14/00 ,  H04J14/02

CPC分类号： H04H20/69 ,  H04J14/0226 ,  H04J14/0232 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282 ,  H04J14/0298

摘要： A subscriber interface device and method for transmitting a communication signal and a broadcasting signal to each subscriber in a communication-broadcasting convergence FTTH system. A subscriber interface, positioned in the ONU, modulates a first predetermined number of broadcasting signals selected by a subscriber among broadcasting signals received from an OLT, combines a baseband communication signal received from the OLT with the modulated broadcasting signals, and optically transmits the combined communication-broadcasting signal. A subscriber interface receiver positioned in an ONT, splits the combined communication-broadcasting signal, filters the split signals to respective frequency bands, modulates the filtered broadcasting signals, transmits the modulated broadcasting signals to a monitor of the subscriber, and transmits the filtered communication signal as a baseband signal to a communication terminal of the subscriber instead of a passband signal.

摘要翻译： 一种用于在通信广播收敛FTTH系统中向每个用户发送通信信号和广播信号的用户接口设备和方法。 定位在ONU中的订户接口在从OLT接收的广播信号中调制由用户选择的第一预定数量的广播信号，将从OLT接收的基带通信信号与已调制广播信号组合，并光学地发送组合通信 广播信号。 定位在ONT中的用户接口接收机，分离组合的通信广播信号，将分离的信号滤波到相应的频带，调制滤波的广播信号，将调制后的广播信号发送给用户的监视器，并发送经滤波的通信信号 作为到用户的通信终端的基带信号，而不是通带信号。

公开(公告)号：US07450581B2

公开(公告)日：2008-11-11

申请号：US10771943

申请日：2004-02-04

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

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

IPC分类号： H04L12/56

CPC分类号： H04Q11/0067 ,  H04J14/0226 ,  H04J14/0232 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282 ,  H04J14/0298 ,  H04Q11/0066

摘要： An EPON for providing a subscriber with a high speed/high capacity data service and a real time digital broadcasting/image service includes an OLT for switching digital broadcasting/image data according to broadcasting/image selection information from each ONT, modulating the switched data into frequencies assigned to each ONT, coupling a broadcasting/image signal with a communication signal, and transmitting the coupled signal. The digital broadcasting/image data is transmitted from an outside broadcaster, the broadcasting/image signal is a combination of the modulated signals, and the communication signal is obtained by optically modulating communication data from an IP network. Further included in the EPON are multiple ONTs, and a divider for dividing the signal from the OLT for routing to each of the multiple ONTs, combining signals from the multiple ONTs, and transmitting the combined signal to the OLT.

摘要翻译： 用于为用户提供高速/高容量数据服务和实时数字广播/图像服务的EPON包括：根据来自每个ONT的广播/图像选择信息切换数字广播/图像数据的OLT，将切换的数据调制成 分配给每个ONT的频率，将广播/图像信号与通信信号耦合，并发送耦合信号。 数字广播/图像数据从外部广播者发送，广播/图像信号是调制信号的组合，并且通过光学地调制来自IP网络的通信数据获得通信信号。 EPON中还包括多个ONT，以及用于分离来自OLT的信号以用于路由到多个ONT中的每一个的分频器，组合来自多个ONT的信号，并将组合信号发送到OLT。

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：US07239808B2

公开(公告)日：2007-07-03

申请号：US10776726

申请日：2004-02-11

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

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

IPC分类号： H04J14/00

CPC分类号： H04H20/69 ,  H04J14/0226 ,  H04J14/0232 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282 ,  H04J14/0298

摘要： A subscriber interface device and method for transmitting a communication signal and a broadcasting signal to each subscriber in a communication-broadcasting convergence FTTH system. A subscriber interface, positioned in the ONU, modulates a first predetermined number of broadcasting signals selected by a subscriber among broadcasting signals received from an OLT, combines a baseband communication signal received from the OLT with the modulated broadcasting signals, and optically transmits the combined communication-broadcasting signal. A subscriber interface receiver positioned in an ONT, splits the combined communication-broadcasting signal, filters the split signals to respective frequency bands, modulates the filtered broadcasting signals, transmits the modulated broadcasting signals to a monitor of the subscriber, and transmits the filtered communication signal as a baseband signal to a communication terminal of the subscriber instead of a passband signal.

摘要翻译： 一种用于在通信广播收敛FTTH系统中向每个用户发送通信信号和广播信号的用户接口设备和方法。 定位在ONU中的订户接口在从OLT接收的广播信号中调制由用户选择的第一预定数量的广播信号，将从OLT接收的基带通信信号与已调制广播信号组合，并光学地发送组合通信 广播信号。 定位在ONT中的用户接口接收机，分离组合的通信广播信号，将分离的信号滤波到相应的频带，调制滤波的广播信号，将调制后的广播信号发送给用户的监视器，并发送经滤波的通信信号 作为到用户的通信终端的基带信号，而不是通带信号。

公开(公告)号：US07006723B2

公开(公告)日：2006-02-28

申请号：US10681923

申请日：2003-10-09

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

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

IPC分类号： G02B6/28

CPC分类号： G02B6/12009 ,  H04J14/0212

摘要： An optical add/drop multiplexer includes a multiplexing/demultiplexing unit having an input multiplexing port, an output multiplexing port and a plurality of demultiplexing ports each connected to a respective optical circulator. Each optical circulator includes a first port for internally inputting an added channel, a second port for outputting the added channel to a corresponding demultiplexing port and receiving a channel outputted by the corresponding demultiplexing port, and a third port for outputting the channel received from the second port. Each of optical switches is located between adjacent circulators, wherein each optical switch includes a first input port, coupled to the third port of one optical circulator, for receiving the channel from the third port, a second input port for receiving an externally added channel, a first output port, coupled to another first port of another optical circulator, for outputting the added channel to another first port, and a second output port for externally outputting the channel inputted through the first input port according to the dropping operation.

摘要翻译： 光分插复用器包括具有输入多路复用端口，输出多路复用端口和多个解复用端口的复用/解复用单元，每个解复用端口连接到相应的光循环器。 每个光循环器包括用于内部输入附加通道的第一端口，用于将相加的信道输出到相应的解复用端口并接收由相应的解复用端口输出的信道的第二端口，以及用于输出从第二端口接收的信道的第三端口 港口。 每个光开关位于相邻循环器之间，其中每个光开关包括耦合到一个光循环器的第三端口的第一输入端口，用于从第三端口接收通道，用于接收外部添加的通道的第二输入端口， 第一输出端口，耦合到另一个光环行器的另一个第一端口，用于将附加的信道输出到另一个第一端口;以及第二输出端口，用于根据丢弃操作从外部输出通过第一输入端口输入的信道。

公开(公告)号：US08451859B2

公开(公告)日：2013-05-28

申请号：US11384723

申请日：2006-03-20

申请人： Sang-Ho Kim ,  Jun-Ho Koh ,  Kyung-Ho Chae ,  Yun-Je Oh

发明人： Sang-Ho Kim ,  Jun-Ho Koh ,  Kyung-Ho Chae ,  Yun-Je Oh

IPC分类号： H04J3/16

CPC分类号： H04L65/605 ,  H04L12/1854 ,  H04L12/189 ,  H04L29/06027 ,  H04L65/103 ,  H04L65/104 ,  H04L65/4076 ,  H04W4/18 ,  H04W80/00

摘要： A packet type retransmission system for DMB services includes a DMB device for receiving multimedia data from a content provider, for converting the multimedia data to DMB data for DMB transmission, and for transmitting the DMB data. A broadcasting transfer medium transfers the DMB data transmitted through the DMB device. A DMB-IP converter receives the DMB data transferred through the broadcasting transfer media and converts the DMB data to packet based data. An IP based multimedia transmitting device outputs the packet based multimedia data converted through the DMB-IP converter to user devices.

摘要翻译： 用于DMB服务的分组类型重传系统包括用于从内容提供商接收多媒体数据的DMB设备，用于将多媒体数据转换为用于DMB传输的DMB数据，以及用于发送DMB数据。 广播传送介质传送通过DMB设备发送的DMB数据。 DMB-IP转换器接收通过广播传送介质传送的DMB数据，并将DMB数据转换为基于数据包的数据。 基于IP的多媒体发送设备将通过DMB-IP转换器转换的基于分组的多媒体数据输出到用户设备。

公开(公告)号：US07564877B2

公开(公告)日：2009-07-21

申请号：US11147703

申请日：2005-06-08

申请人： Jae-Hun Cho ,  Jun-Ho Koh ,  Sang-Ho Kim ,  Kwan-Woong Song ,  Young-Hun Joo ,  Yun-Je Oh

发明人： Jae-Hun Cho ,  Jun-Ho Koh ,  Sang-Ho Kim ,  Kwan-Woong Song ,  Young-Hun Joo ,  Yun-Je Oh

IPC分类号： H04J3/02

CPC分类号： H03K19/1776 ,  H03K19/17744

摘要： A field programmable gate array (FPGA) for multiplexing data and enable signals input from a plurality of input ports and outputting the multiplexed signal to one output port is disclosed. The FPGA includes a plurality of memories, which are connected to the input ports, for storing the input data and enable signals, respectively, and outputting one-shot signals at trailing edges of the enable signals; and a finite state machine (FSM) for sequentially reading the data signals stored in the memories in an order of the one-shot signals input from the memories.

摘要翻译： 公开了一种用于多路复用数据并使能从多个输入端口输入的信号并将复用的信号输出到一个输出端口的现场可编程门阵列（FPGA）。 FPGA包括连接到输入端口的多个存储器，用于分别存储输入数据和使能信号，并在使能信号的后沿输出单触发信号; 以及用于按照从存储器输入的单触发信号的顺序顺序读取存储在存储器中的数据信号的有限状态机（FSM）。

公开(公告)号：US07400652B2

公开(公告)日：2008-07-15

申请号：US10861205

申请日：2004-06-04

申请人： Kwan-Lae Kim ,  Sung-Jin Park ,  Jun-Ho Koh ,  Young-Seok Kim ,  Yun-Je Oh

发明人： Kwan-Lae Kim ,  Sung-Jin Park ,  Jun-Ho Koh ,  Young-Seok Kim ,  Yun-Je Oh

IPC分类号： H04H20/28 ,  H04H11/02

CPC分类号： H04N21/4383 ,  H04N5/4401 ,  H04N21/4334 ,  H04N21/434 ,  H04N21/4345 ,  H04N21/4384

摘要： In an MPEG-2 decoding system, a transport decoder decodes a transport packet corresponding to a Program Identification (PID) from an input transport stream, and retrieves a Program Association Table/Program Map Table PAT/PMT) from the stream when it is requested to retrieve Program Specific lnformation (PSI). A pre-decoder checks PSI stored in a PSI memory in response to a request to change to a desired channnel, reads PIDs of transport packets for a Packetized Elementary Stream (PES) of a program corresponding to the desired channel from the PSI memory to provide it to the transport decoder, receives the PAT/PMT and updates the contents of the memory using the PAT/PMT. After decoding, PSI previously extracted therefrom is stored in the memory. PIDs of transport packets for the PES of desired program are obtained referring to the stored PSI, and transport packets having the PIDs are retrieved and decoded.

摘要翻译： 在MPEG-2解码系统中，传输解码器从输入传输流解码对应于节目识别（PID）的传输分组，并且在请求时从流中检索节目关联表/节目映射表PAT / PMT） 检索程序特定信息（PSI）。 响应于要改变到所需信道的请求，预解码器检查存储在PSI存储器中的PSI，从PSI存储器读取对应于期望信道的节目的分组化基本流（PES）的传输分组的PID，以提供 它到传输解码器，接收PAT / PMT，并使用PAT / PMT更新存储器的内容。 在解码之后，先前提取的PSI被存储在存储器中。 通过存储的PSI获得所需节目的PES的传输分组的PID，并且检索并解码具有PID的传输分组。

公开(公告)号：US07388888B2

公开(公告)日：2008-06-17

申请号：US10861058

申请日：2004-06-04

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

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

IPC分类号： H04J3/04

CPC分类号： H04Q11/0067 ,  H04L12/64 ,  H04Q2011/0064

摘要： A broadcast/communication convergence system and method for transmitting and receiving Ethernet data by an optical network unit (ONU) performing a time division multiplexing (TDM) operation and switching by a network switch. A resultant signal is transmitted to a corresponding subscriber set-top box (SSTB), and data from the SSTB is provided to the network switch. A length of an Ethernet data frame is provided from the network switch, and an encapsulation generates and inserts data length information into an Ethernet data frame, for transmission to the SSTB. The SSTB carries out a TDM operation for a signal transmitted from the ONU, and separates the signal into Ethernet and broadcast data. A framing bit is detected based on a result of the separated signals, the length information is detected. A preamble bit and a start-of-field delimiter (SFD) are inserted into the recognized Ethernet data to recover the original Ethernet data.

摘要翻译： 一种广播/通信会聚系统和方法，用于通过执行时分复用（TDM）操作的光网络单元（ONU）和通过网络交换机切换来发送和接收以太网数据。 结果信号被发送到相应的用户机顶盒（SSTB），并且来自SSTB的数据被提供给网络交换机。 从网络交换机提供一长度的以太网数据帧，封装生成并将数据长度信息插入到以太网数据帧中，以传输到SSTB。 SSTB对从ONU发送的信号进行TDM操作，并将信号分离成以太网和广播数据。 基于分离信号的结果检测成帧位，检测长度信息。 将前导码位和起始字段分隔符（SFD）插入识别的以太网数据中以恢复原始以太网数据。