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：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：US20050152372A1

公开(公告)日：2005-07-14

申请号：US10991182

申请日：2004-11-17

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

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

IPC分类号： H04L12/00 ,  H04L12/28 ,  H04L29/06 ,  H04N7/16 ,  H04N21/235 ,  H04N21/236 ,  H04N21/434

CPC分类号： H04L12/5601

摘要： A system for performing transmission and reception operations based on broadcast/communication convergence. A transmitter adapted for the broadcast/communication convergence converts input broadcast data into a parallel format, inserts port identification (Port ID) information into each of the broadcast data converted into the parallel format and input communication data, multiplexes the broadcast data and the communication data, and transmits a broadcast/communication convergence signal based on a result of the multiplexing through a single transmission channel. A receiver adapted for the broadcast/communication convergence demultiplexes the broadcast/communication convergence signal using the Port ID information to be separated into the broadcast data and the communication data when the broadcast/communication convergence signal is received, and outputs data to a corresponding destination.

摘要翻译： 一种用于基于广播/通信融合执行发送和接收操作的系统。 适用于广播/通信融合的发射机将输入广播数据转换为并行格式，将端口识别（Port ID）信息插入转换成并行格式的每个广播数据并输入通信数据，复用广播数据和通信数据 ，并且通过单个传输信道基于多路复用的结果发送广播/通信会聚信号。 适于广播/通信收敛的接收机在接收到广播/通信收敛信号时，使用要分离成广播数据和通信数据的端口ID信息来解复用广播/通信收敛信号，并将数据输出到相应的目的地。

公开(公告)号：US07450859B2

公开(公告)日：2008-11-11

申请号：US10783804

申请日：2004-02-20

申请人： Young-Hun Joo ,  Chan-Yul Kim ,  Jun-Ho Koh ,  Kyu-Hyung Cho

发明人： Young-Hun Joo ,  Chan-Yul Kim ,  Jun-Ho Koh ,  Kyu-Hyung Cho

IPC分类号： H04J14/02

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

摘要： An optical subscriber network system is disclosed, which comprises: a server bi-directional optical transmitter including a multiplexer to multiplexes communication data and broadcast data, a server laser diode to converts the multiplexed data into an optical signal, and a server photo diode receive communication data from a subscriber, wherein the server bi-directional optical transmitter transmits the upstream communication data; and a subscriber bi-directional optical receiver including a subscriber laser diode to transmit upstream communication data, a subscriber photo diode to receive the optical signal transmitted from the server bi-directional optical transmitter, and a demultiplexer to demultiplex and divide the multiplexed signal into communication data and broadcast data. In the optical subscriber network system, the optical transmitter and the optical receiver can transceive image signals and Ethernet communication signals in a two-way direction by means of a single laser diode and photo diode.

摘要翻译： 公开了一种光用户网络系统，其包括：服务器双向光发射机，包括多路复用器，用于复用通信数据和广播数据;服务器激光二极管，用于将多路复用数据转换为光信号;以及服务器光电二极管接收通信 来自用户的数据，其中服务器双向光发射机发送上行通信数据; 以及包括用户激光二极管以发送上行通信数据的订户双向光接收机，用于接收从服务器双向光发射机发送的光信号的用户光二极管，以及解复用器，以将多路复用信号解复用并分成通信 数据和广播数据。 在光用户网络系统中，光发射机和光接收机可以通过单个激光二极管和光电二极管双向传输图像信号和以太网通信信号。

公开(公告)号：US20050047790A1

公开(公告)日：2005-03-03

申请号：US10783804

申请日：2004-02-20

申请人： Young-Hun Joo ,  Chan-Yul Kim ,  Jun-Ho Koh ,  Kyu-Hyung Cho

发明人： Young-Hun Joo ,  Chan-Yul Kim ,  Jun-Ho Koh ,  Kyu-Hyung Cho

IPC分类号： H04J3/00 ,  H04B10/00 ,  H04B10/27 ,  H04J14/02 ,  H04J14/08 ,  H04L12/18 ,  H04L12/44 ,  H04Q11/00

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

摘要： An optical subscriber network system is disclosed, which comprises: a server bi-directional optical transmitter including a multiplexer to multiplexes communication data and broadcast data, a server laser diode to converts the multiplexed data into an optical signal, and a server photo diode receive communication data from a subscriber, wherein the server bi-directional optical transmitter transmits the upstream communication data; and a subscriber bi-directional optical receiver including a subscriber laser diode to transmit upstream communication data, a subscriber photo diode to receive the optical signal transmitted from the server bi-directional optical transmitter, and a demultiplexer to demultiplex and divide the multiplexed signal into communication data and broadcast data. In the optical subscriber network system, the optical transmitter and the optical receiver can transceive image signals and Ethernet communication signals in a two-way direction by means of a single laser diode and photo diode.

摘要翻译： 公开了一种光用户网络系统，其包括：服务器双向光发射机，包括多路复用器，用于复用通信数据和广播数据;服务器激光二极管，用于将多路复用数据转换为光信号;以及服务器光电二极管接收通信 来自用户的数据，其中服务器双向光发射机发送上行通信数据; 以及包括用户激光二极管以发送上行通信数据的订户双向光接收机，用于接收从服务器双向光发射机发送的光信号的用户光二极管，以及解复用器，以将多路复用信号解复用并分成通信 数据和广播数据。 在光用户网络系统中，光发射机和光接收机可以通过单个激光二极管和光电二极管双向传输图像信号和以太网通信信号。

公开(公告)号：US07120848B2

公开(公告)日：2006-10-10

申请号：US10358535

申请日：2003-02-05

申请人： Yong-Deok Kim ,  Yun-Je Oh ,  Jun-Ho Koh ,  Han-Lim Lee ,  Byung-Jik Kim ,  Chan-Youl Kim

发明人： Yong-Deok Kim ,  Yun-Je Oh ,  Jun-Ho Koh ,  Han-Lim Lee ,  Byung-Jik Kim ,  Chan-Youl Kim

IPC分类号： H03M13/00

CPC分类号： H04L1/0047

摘要： The provided forward error correction (FEC) apparatus for a transmission system includes a low pass filter (LPF) passing only a low frequency component of an input signal having a predetermined transmission rate; an AC power meter converting an energy value of an signal output from the LPF into a DC voltage value; a logarithm amplifier converting the exponentially varying DC voltage value from the AC power meter into a linear logarithmically varying DC voltage value; a digital signal processor (DSP) determining the transmission rate of the input signal according to a magnitude of the linear DC voltage value and outputting a control signal according to the transmission rate; a clock generator receiving the control signal and generating a clock signal according to the control signal; and a FEC module receiving the clock signal and performing FEC operation on the received signal. A method for FEC is also provided.

摘要翻译： 所提供的用于传输系统的前向纠错（FEC）装置包括仅通过具有预定传输速率的输入信号的低频分量的低通滤波器（LPF）; 将从LPF输出的信号的能量值转换为DC电压值的AC功率计; 对数放大器将来自AC功率计的指数变化的DC电压值转换成线性对数变化的DC电压值; 数字信号处理器（DSP），根据线性DC电压值的大小确定输入信号的传输速率，并根据传输速率输出控制信号; 接收所述控制信号并根据所述控制信号产生时钟信号的时钟发生器; 以及FEC模块，接收时钟信号并对接收到的信号执行FEC操作。 还提供了一种用于FEC的方法。

公开(公告)号：US20060123126A1

公开(公告)日：2006-06-08

申请号：US11192599

申请日：2005-07-29

申请人： Yong-Deok Kim ,  Chang-Sup Shim ,  Jun-Ho Koh

发明人： Yong-Deok Kim ,  Chang-Sup Shim ,  Jun-Ho Koh

IPC分类号： G06F15/16

CPC分类号： H04N21/2402 ,  H04L1/0014 ,  H04N7/22 ,  H04N21/23418 ,  H04N21/234309 ,  H04N21/23439 ,  H04N21/25833 ,  H04N21/2662 ,  H04N21/64769

摘要： A method for transmitting video data to the users via a network in a transcoder of an image processing system including a storage media having a predetermined amount of storage area is disclosed. The method includes the steps of storing in the storage media, the video data provided based on the corresponding services, monitoring a traffic condition of the network to determine if transcoding is necessary; transmitting the stored video data to the corresponding users, respectively, via the network, when the transcoding is not necessary; and transcoding the stored video data to transmit the video data to the corresponding users, respectively, when the transcoding is necessary. The video data provided is based on the corresponding services includes image information having the highest quality of service from a content provider.

摘要翻译： 公开了一种通过包括具有预定量的存储区域的存储介质的图像处理系统的代码转换器中的网络经由网络向用户发送视频数据的方法。 该方法包括以下步骤：在存储介质中存储基于相应服务提供的视频数据，监视网络的业务状况以确定是否需要转码; 当不需要转码时，通过网络分别将存储的视频数据发送给对应的用户; 并且当需要转码时，分别对存储的视频数据进行代码转换以将视频数据发送给相应的用户。 提供的视频数据基于相应的服务，包括具有来自内容提供商的最高服务质量的图像信息。

公开(公告)号：US07428215B2

公开(公告)日：2008-09-23

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： H04J1/16 ,  H04J3/14

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：US08046815B2

公开(公告)日：2011-10-25

申请号：US11192599

申请日：2005-07-29

申请人： Yong-Deok Kim ,  Chang-Sup Shim ,  Jun-Ho Koh

发明人： Yong-Deok Kim ,  Chang-Sup Shim ,  Jun-Ho Koh

IPC分类号： H04N7/173

CPC分类号： H04N21/2402 ,  H04L1/0014 ,  H04N7/22 ,  H04N21/23418 ,  H04N21/234309 ,  H04N21/23439 ,  H04N21/25833 ,  H04N21/2662 ,  H04N21/64769

摘要： A method for transmitting video data to the users via a network in a transcoder of an image processing system including a storage media having a predetermined amount of storage area is disclosed. The method includes the steps of storing in the storage media, the video data provided based on the corresponding services, monitoring a traffic condition of the network to determine if transcoding is necessary; transmitting the stored video data to the corresponding users, respectively, via the network, when the transcoding is not necessary; and transcoding the stored video data to transmit the video data to the corresponding users, respectively, when the transcoding is necessary. The video data provided is based on the corresponding services includes image information having the highest quality of service from a content provider.

摘要翻译： 公开了一种通过包括具有预定量的存储区域的存储介质的图像处理系统的代码转换器中的网络经由网络向用户发送视频数据的方法。 该方法包括以下步骤：在存储介质中存储基于相应服务提供的视频数据，监视网络的业务状况以确定是否需要转码; 当不需要转码时，通过网络分别将存储的视频数据发送给对应的用户; 并且当需要转码时，分别对存储的视频数据进行代码转换以将视频数据发送给相应的用户。 提供的视频数据基于相应的服务，包括具有来自内容提供商的最高服务质量的图像信息。

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。