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。

公开(公告)号：US07457541B2

公开(公告)日：2008-11-25

申请号：US10645188

申请日：2003-08-21

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

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

IPC分类号： H04B10/00

CPC分类号： H04H20/69 ,  H04J14/02 ,  H04J14/08

摘要： A system for integrating broadcast and communication technologies includes an optical-line terminal (OLT), a optical-network unit (ONU) and a user gateway, wherein a broadcast signal is processed on the basis of time division multiplexing (TDM) such that the quality of a broadcast service can be ensured. The ONU separates the optical signal transmitted from the OLT into the broadcast signal and the communication signal, processes upstream information transmitted from a user, and optically transmits the broadcast signal and the communication signal selected on a user-by-user basis, on the basis of a time slot. The user gateway opto-electrically converts a time slot-based optical signal transmitted from the ONU, separates the time slot-based optical signal into individual signals, distributes the individual signals on a service-by-service basis, and optically transmits the upstream information from the user to the ONU.

摘要翻译： 用于集成广播和通信技术的系统包括光线路终端（OLT），光网络单元（ONU）和用户网关，其中基于时分复用（TDM）处理广播信号，使得 可以确保广播业务的质量。 ONU将从OLT发送的光信号分离成广播信号，并且通信信号处理从用户发送的上行信息，并且基于用户在用户的基础上光学地发送广播信号和通信信号 的时间段 用户网关光电转换从ONU发送的基于时隙的光信号，将基于时隙的光信号分离成各自的信号，在逐个服务的基础上分配各个信号，并光学地发送上行信息 从用户到ONU。

公开(公告)号：US07428288B2

公开(公告)日：2008-09-23

申请号：US10681951

申请日：2003-10-09

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

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

IPC分类号： H04L25/10

CPC分类号： H04N21/4305 ,  H04N21/42607

摘要： An asynchronous transport stream receiver of a digital broadcasting receiving system connected to MPEG-2 (Moving Picture Experts Group-2) equipment, such as a VOD (Video On Demand) server is disclosed. The inventive receiver includes an FIFO section for storing MPEG-2 data generated from DVB-ASI (Digital Video Broadcasting Asynchronous Serial Interface) signals, an oscillator for generating clock signals for producing the MPEG-2 data from the DVB-ASI signals, and a read controller for reading and outputting the MPEG-2 data stored at the FIFO section in synchronization with clock signals of the oscillator. Accordingly, the MPEG-2 data can be processed and outputted regardless of the SD or HD leveled compression condition (bit rate) of the MPEG-2 data transmitted according to the DVB-ASI standard.

摘要翻译： 公开了连接到诸如VOD（视频点播）服务器的MPEG-2（运动图像专家组-2）设备的数字广播接收系统的异步传输流接收器。 本发明的接收机包括用于存储从DVB-ASI（数字视频广播异步串行接口）信号产生的MPEG-2数据的FIFO部分，用于产生用于从DVB-ASI信号产生MPEG-2数据的时钟信号的振荡器，以及 读取控制器，与振荡器的时钟信号同步地读出并输出存储在FIFO部分的MPEG-2数据。 因此，无论根据DVB-ASI标准发送的MPEG-2数据的SD或HD等级压缩条件（比特率）如何，都可以处理和输出MPEG-2数据。

公开(公告)号：US07289732B2

公开(公告)日：2007-10-30

申请号：US10621588

申请日：2003-07-17

申请人： Jun-Ho Koh ,  Kyong-Joon Chun ,  Byung-Chang Kang ,  Yun-Je Oh

发明人： Jun-Ho Koh ,  Kyong-Joon Chun ,  Byung-Chang Kang ,  Yun-Je Oh

IPC分类号： H04J14/00

CPC分类号： H04Q11/0067 ,  H04B10/272 ,  H04J14/02 ,  H04Q11/0066 ,  H04Q11/0071

摘要： Disclosed is a broadcast/communication unified passive optical network system. The network system comprises: an optical line termination that time-division multiplexes the received digital broadcast signals, receives communication signals through the internet, and wavelength-division multiplexes and transmits the broadcast signals and the communication signals; a plurality of optical network units connected to the optical line termination in one-to-multi connection, each optical network unit receiving the broadcast signals and the communication signals from the optical line termination, time-division demultiplexing the broadcast signals, and sending the broadcast signals selected from the above broadcast signals in accordance with a subscriber control signal and the communicating signals; and, a plurality of setup boxes connected to the each optical network unit in one-to-multi connection, each setup box receiving the broadcast signals and communication signals from each corresponding optical network unit and sending the subscriber control signal inputted by a subscriber to the corresponding optical network unit.

摘要翻译： 公开了广播/通信统一的无源光网络系统。 网络系统包括：时分复用接收到的数字广播信号，通过因特网接收通信信号的光线路终端，以及波分复用并发送广播信号和通信信号; 多个光网络单元，以一对多连接方式连接到光线路终端，每个光网络单元从光线路终端接收广播信号和通信信号，对广播信号进行时分解复用，并发送广播 根据用户控制信号和通信信号从上述广播信号中选择的信号; 以及多个连接到每个光网络单元的设置盒，每个设置盒从每个对应的光网络单元接收广播信号和通信信号，并将用户输入的用户控制信号发送给 相应的光网络单元。

公开(公告)号：US07254338B2

公开(公告)日：2007-08-07

申请号：US10771793

申请日：2004-02-04

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

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

IPC分类号： H04J14/02

CPC分类号： H04J14/02 ,  H04B10/506 ,  H04J14/0221

摘要： A multi-wavelength light source unit for optical communication system is disclosed. The light source includes a demultiplexer for demultiplexing a multiplexed light signal into a plurality of lights having different wavelengths and a multiplexer that receives the demultiplexed lights and multiplexes the demultiplexed lights into the multiplexed light signal. Input ports of the multiplexer are respectively port-to-port connectable to each one of a plurality of output ports of the demultiplexer. The light source unit includes a plurality of semiconductor optical amplifiers amplifying the demultiplexed lights output form the demultiplexer, and a plurality of beam splitters for splitting the amplified demultiplexed lights into two parts, so as to provide the respective input ports of the multiplexer with a split part of the lights, while to transmit the other part of the lights out of the beam splitters.

摘要翻译： 公开了一种用于光通信系统的多波长光源单元。 光源包括用于将复用的光信号解复用为具有不同波长的多个光的解复用器，以及接收解复用的光并将解复用的光复用到复用的光信号中的多路复用器。 多路复用器的输入端口分别是可连接到解复用器的多个输出端口中的每一个的端口到端口。 光源单元包括放大从解复用器输出的解复用光的多个半导体光放大器和用于将放大的解复用光分成两部分的多个分束器，以便将多路复用器的相应输入端口分配 部分灯光，同时将其他部分的光线从光束分离器传出。

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：US20060224737A1

公开(公告)日：2006-10-05

申请号：US11374795

申请日：2006-03-14

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

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

IPC分类号： G06F15/173

CPC分类号： H04L49/351 ,  H04L49/25 ,  H04L49/3018

摘要： Disclosed is a method for forming a super frame used for transmitting isochronous data and asynchronous data in a residential Ethernet system. The method includes the steps of receiving the isochronous data and the asynchronous data to be transmitted through the residential Ethernet system, forming an isochronous frame using the received isochronous data, forming a cycle start frame used for reporting start of the super frame, and inserting the asynchronous data into an area of an asynchronous frame by employing a remaining area as the area of the asynchronous frame, the remaining area being obtained by excluding an isochronous frame area, which includes the cycle start frame and the isochronous frame, from an area having the predetermined size.

摘要翻译： 公开了一种用于形成用于在住宅以太网系统中传输等时数据和异步数据的超帧的方法。 该方法包括以下步骤：接收通过住宅以太网系统发送的等时数据和异步数据，使用所接收的同步数据形成同步帧，形成用于报告超帧开始的周期起始帧， 通过使用剩余区域作为异步帧的区域，异步数据进入异步帧的区域，剩余区域是通过从包括循环起始帧和同步帧的区域排除包括循环起始帧和等时帧的等时帧区域而获得的， 预定尺寸。

公开(公告)号：US20060221994A1

公开(公告)日：2006-10-05

申请号：US11395492

申请日：2006-03-31

申请人： Jae-Hun Cho ,  Jong-Ho Yoon ,  Sang-Ho Kim ,  Kwan-Soo Lee ,  Yun-Je Oh ,  Jun-Ho Koh ,  Hye-Jin Nam

发明人： Jae-Hun Cho ,  Jong-Ho Yoon ,  Sang-Ho Kim ,  Kwan-Soo Lee ,  Yun-Je Oh ,  Jun-Ho Koh ,  Hye-Jin Nam

IPC分类号： H04L12/43

CPC分类号： H04L12/413 ,  H04L12/403

摘要： A method for allocating slots for a synchronous Ethernet service in a Residential Ethernet system includes the steps of: receiving requests for synchronous Ethernet services from terminals requiring the synchronous Ethernet services; calculating a number of slots for each synchronous Ethernet service, and allocating slots for each terminal based on the calculated number of slots; transmitting information about the allocated slots through at least one Residential Ethernet switch; and receiving acknowledgement signals from the terminals in response to the allocated slot information and providing the synchronous Ethernet services using the allocated slots.

摘要翻译： 一种用于在住宅以太网系统中为同步以太网服务分配时隙的方法包括以下步骤：从需要同步以太网业务的终端接收对同步以太网业务的请求; 计算每个同步以太网业务的时隙数量，以及基于所计算的时隙数量为每个终端分配时隙; 通过至少一个住宅以太网交换机发送关于所分配的时隙的信息; 以及响应于所分配的时隙信息从终端接收确认信号，并使用所分配的时隙提供同步以太网业务。