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21. 发明授权

US07564877B2 Data multiplexing method, field programmable gate array, and optical network 有权
标题翻译：数据复用方法，现场可编程门阵列和光网络
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）。

22. 发明授权

US07400652B2 MPEG-2 decoding system and method 有权
标题翻译： MPEG-2解码系统及方法
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。

23. 发明授权

US07388888B2 Method for transmitting and receiving ethernet data in system based on broadcast/communication convergence 有权
标题翻译：基于广播/通信融合的系统中发送和接收以太网数据的方法
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。

24. 发明授权

US07310330B2 Apparatus for providing broadcasting channel information in internet protocol based digital broadcasting system and method thereof 有权
标题翻译：用于在基于互联网协议的数字广播系统中提供广播频道信息的装置及方法
公开(公告)号：US07310330B2
公开(公告)日：2007-12-18
申请号：US11126741
申请日：2005-05-11
申请人： Kyung-Ho Chae , Chang-Sup Shim , Jun-Ho Koh
发明人： Kyung-Ho Chae , Chang-Sup Shim , Jun-Ho Koh
IPC分类号： H04L12/66
CPC分类号： H04L29/06027 , H04H60/72 , H04H60/82 , H04L65/4076 , H04N5/44543 , H04N21/2355 , H04N21/23608 , H04N21/2381 , H04N21/4622 , H04N21/64322
摘要： In a digital broadcasting system comprising a server for retransmitting a digital broadcast on the basis of an Internet protocol (IP), a user terminal for receiving the digital broadcast on the basis of the IP, and a router for connecting the server with the user terminal, the server performs a method for providing the broadcasting channel information that includes the steps of dividing a broadcasting stream to be transmitted to the user terminal into the broadcasting channel information and other information excluding the broadcasting channel information by demultiplexing the broadcasting stream and extracting the broadcasting channel information from the divided broadcasting stream, converting the extracted broadcasting channel information into IP-based broadcasting channel information by inserting the Internet protocol information for each broadcasting channel into the extracted broadcasting channel information, and remultiplexing the IP-based converted broadcasting channel information and the other information and transmitting the remultiplexed information to the user terminal.
摘要翻译：在包括用于基于因特网协议（IP）的基础上重传数字广播的服务器的数字广播系统中，基于IP接收数字广播的用户终端和用于将服务器与用户终端连接的路由器服务器执行一种提供广播频道信息的方法，该广播频道信息包括以下步骤：通过解复用广播流并提取广播来将要发送的用户终端的广播流划分为广播频道信息和除广播频道信息之外的其他信息来自分割的广播流的频道信息，通过将每个广播频道的因特网协议信息插入到所提取的广播频道信息中，将所提取的广播频道信息转换为基于IP的广播频道信息，并重新复用基于IP的转换的广播频道信息离子和其他信息，并将多路复用信息发送到用户终端。

25. 发明授权

US07218863B2 Optical transmission system for optimizing bias of laser diode for SCM analog optical signal 有权
标题翻译：用于优化SCM模拟光信号激光二极管偏置的光传输系统
公开(公告)号：US07218863B2
公开(公告)日：2007-05-15
申请号：US10638453
申请日：2003-08-11
申请人： Chang-Hyun Lee , Chan-Yul Kim , Yun-Je Oh , Jun-Ho Koh
发明人： Chang-Hyun Lee , Chan-Yul Kim , Yun-Je Oh , Jun-Ho Koh
IPC分类号： H04B10/04
CPC分类号： H04B10/504 , H04B10/58
摘要： An optical transmission system for optimizing the bias of a laser diode during an SCM analog optical transmission includes an optical transmitter for converting a baseband electric signal into an optical signal using a laser diode according to the set bias and outputting the optical signal through an optical line, an optical receiver for converting the optical signal transmitted from the optical transmitter into the baseband electric signal, a recovery unit for detecting an error generated according to the bias of the laser diode on the basis of the electric signal converted by the optical receiver, and a bias adjuster for optimally adjusting the bias of the laser diode on the basis of a value of the error detected by the reproducer.
摘要翻译：一种用于在SCM模拟光传输期间优化激光二极管的偏置的光传输系统包括：光发射机，用于根据设定的偏置，使用激光二极管将基带电信号转换为光信号，并通过光线路输出光信号用于将从光发送器发送的光信号转换为基带电信号的光接收器，用于根据由光接收器转换的电信号来检测根据激光二极管的偏置产生的误差的恢复单元;以及偏置调节器，用于基于由再现器检测到的误差的值来最佳地调整激光二极管的偏置。

26. 发明授权

US07120848B2 Apparatus and method for forward error correction 有权
标题翻译：前向纠错装置及方法
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。

27. 发明申请

US20060174315A1 System and method for providing sign language video data in a broadcasting-communication convergence system 审中-公开
标题翻译：在广播通信收敛系统中提供手语视频数据的系统和方法
公开(公告)号：US20060174315A1
公开(公告)日：2006-08-03
申请号：US11331989
申请日：2006-01-13
申请人： Kwan-lae Kim , Jeong-Rok Park , Jeong-Seok Choi , Chang-Sup Shim , Yun-Je Oh , Jun-Ho Koh
发明人： Kwan-lae Kim , Jeong-Rok Park , Jeong-Seok Choi , Chang-Sup Shim , Yun-Je Oh , Jun-Ho Koh
IPC分类号： H04N7/00 , H04N11/00 , H04N7/16
CPC分类号： G09B5/02 , G09B21/009 , H04N21/235 , H04N21/435 , H04N21/44012 , H04N21/84
摘要： A system having a transmitter and a receiver provides sign language video data in a broadcasting-communication convergence system. A transmitter extracts data, to which a sign language is to be applied, from the multimedia data, converts the extracted data into motion data, converts the motion data into an avatar motion schema indicative of avatar motion data, converts the avatar motion schema into metadata, multiplexes the multimedia data and the metadata, and transmits the multiplexed data. A receiver receives the multiplexed data, demultiplexes the received multiplexed data, extracts an avatar motion schema using the metadata, generates sign language video data by controlling a motion of an avatar through the avatar motion schema, multiplexes the sign language video data and the multimedia data, and transmits the multiplexed data to a display unit.
摘要翻译：具有发射机和接收机的系统在广播通信收敛系统中提供手语视频数据。发射机从多媒体数据中提取要应用手语的数据，将所提取的数据转换为运动数据，将运动数据转换为表示化身运动数据的化身运动模式，将化身运动模式转换为元数据复用多媒体数据和元数据，并发送复用数据。接收器接收多路复用数据，解复用接收的多路复用数据，使用元数据提取化身运动模式，通过化身运动模式控制化身的运动来生成手语视频数据，多路复用手语视频数据和多媒体数据并将多路复用数据发送到显示单元。

28. 发明申请

US20060165172A1 Method for transmitting data without jitter in synchronous Ethernet 审中-公开
标题翻译：同步以太网传输数据无抖动的方法
公开(公告)号：US20060165172A1
公开(公告)日：2006-07-27
申请号：US11336677
申请日：2006-01-20
申请人： Jun-Ho Koh , Chang-Sup Shim , Jae-Hun Cho
发明人： Jun-Ho Koh , Chang-Sup Shim , Jae-Hun Cho
IPC分类号： H04N7/12 , H04N11/04 , H04B1/66 , H04N11/02
CPC分类号： H04N19/132 , H04N19/159 , H04N19/172 , H04N19/61
摘要： Disclosed is a method for transmitting asynchronous data in a synchronous Ethernet having a sync frame section and an async frame section. The method includes the steps of: a) allocating a priority to motion picture data for transmission through the sync frame section; b) determining if a size of the data of all frames for transmission in one cycle exceeds the predetermined length; c) dropping motion picture data having a lower priority (e.g. which corresponds to the size of the data exceeding the predetermined length); and d) transmitting the data in one cycle unit when the size of the data to be transmitted does not exceed the predetermined length.
摘要翻译：公开了一种用于在具有同步帧部分和异步帧部分的同步以太网中发送异步数据的方法。该方法包括以下步骤：a）为运动图像数据分配优先级以便通过同步帧部分传输; b）确定在一个周期内用于传输的所有帧的数据的大小是否超过预定长度; c）丢弃具有较低优先级的运动图像数据（例如，对应于超过预定长度的数据的大小）; 以及d）当要发送的数据的大小不超过预定长度时，以一个周期单位发送数据。

29. 发明授权

US07016106B2 Gain-controllable wideband optical fiber amplifier 失效
标题翻译：增益可控宽带光纤放大器
公开(公告)号：US07016106B2
公开(公告)日：2006-03-21
申请号：US10688593
申请日：2003-10-17
申请人： Kwan-Woong Song , Seong-Taek Hwang , Jun-Ho Koh
发明人： Kwan-Woong Song , Seong-Taek Hwang , Jun-Ho Koh
IPC分类号： H04B10/12
CPC分类号： H01S3/094003 , H01S3/06754 , H01S3/094023 , H01S3/2383
摘要： Disclosed is a gain-controllable wideband optical fiber amplifier for amplifying both C-band and L-band optical signals, which comprises: a first amplifying section configured to (1) be pumped in at least one direction, (2) amplify both C-band and L-band optical signals and (3) output an amplified spontaneous emission; an optical attenuator for attenuating the power of the spontaneous emission; and a second amplifying section pumped by the attenuated spontaneous emission to secondarily amplify the amplified L-band optical signals.
摘要翻译：公开了一种用于放大C波段和L波段光信号的增益可控宽带光纤放大器，其包括：第一放大部分，被配置为（1）至少沿一个方向泵浦，（2）放大C- 频带和L波段光信号，（3）输出放大的自发发射; 用于衰减自发发射功率的光衰减器; 以及通过衰减的自发发射泵浦的第二放大部分，以二次放大放大的L波段光信号。

30. 发明申请

US20060045023A1 Method for estimating available bandwidth of network 有权
标题翻译：估计网络可用带宽的方法
公开(公告)号：US20060045023A1
公开(公告)日：2006-03-02
申请号：US11147640
申请日：2005-06-08
申请人： Chan-Yul Kim , Jun-Ho Koh , Jong-Kwon Kim
发明人： Chan-Yul Kim , Jun-Ho Koh , Jong-Kwon Kim
IPC分类号： H04L1/00
CPC分类号： H04L1/24 , H04L1/0002
摘要： Disclosed is a method for estimating an available bandwidth of a network. A plurality of periodic time-stamp packets are transmitted to a receiving-party communication apparatus, which is connected to the network, through the network at a currently-set test transmission rate, and then a changing tendency of transmission delay time differences between the time-stamp packets is checked on the basis of reception times at which the receiving-party communication apparatus have received the respective time-stamp packets. When the transmission delay time differences are located outside a stable range and show a tendency to increase, the test transmission rate is set to a decreased value and the time-stamp packets are repeatedly transmitted at the decreased rate and when the transmission delay time differences are located outside the stable range and show a tendency to decrease, the test transmission rate is set to be an increased value and the time-stamp packets are repeatedly transmitted at the increased rate. A test transmission rate is determined as the available bandwidth when the transmission delay time differences are within the stable range.
摘要翻译：公开了一种用于估计网络的可用带宽的方法。多个周期性时间戳分组通过网络以当前设置的测试传输速率被发送到连接到网络的接收方通信设备，然后是时间间隔之间的传输延迟时间差的变化趋势基于接收方通信装置已经接收到各个时间戳分组的接收时间来检查振幅分组。当传输延迟时间差位于稳定范围之外并且显示出增加的趋势时，将测试传输速率设置为减小的值，并且以降低的速率重复发送时间戳分组，并且当传输延迟时间差为位于稳定范围之外并且显示出降低的趋势，将测试传输速率设置为增加的值，并且以增加的速率重复发送时间戳分组。当传输延迟时间差在稳定范围内时，测试传输速率被确定为可用带宽。

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