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1. 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。

2. 发明授权

US07081989B2 Wide-band fiber amplifier 失效
标题翻译：宽带光纤放大器
公开(公告)号：US07081989B2
公开(公告)日：2006-07-25
申请号：US10688560
申请日：2003-10-17
申请人： Kwan-Woong Song , Jun-Ho Koh , Seong-Taek Hwang , Yun-Je Oh
发明人： Kwan-Woong Song , Jun-Ho Koh , Seong-Taek Hwang , Yun-Je Oh
IPC分类号： H04B10/12 , H01S4/00
CPC分类号： H01S3/094003 , H01S3/06754 , H01S3/094023 , H01S3/2383
摘要： Disclosed is a wide-band fiber amplifier for amplifying C-band and L-band optical signals, including a first amplifying unit including a first amplifying fiber adapted to be (1) pumped in at least one direction (2) amplify both the C-band and L-band optical signals and (3) output Amplified Spontaneous Emission (ASE), a second amplifying unit including a second amplifying fiber adapted to be pumped by amplified ASE and secondarily amplify the amplified L-band optical signal, and an L-band pumping light source including a third amplifying fiber adapted to be pumped in at least one direction while being pumped by the ASE, and output amplified ASE used to pump the second amplifying fiber.
摘要翻译：公开了一种用于放大C波段和L波段光信号的宽带光纤放大器，包括第一放大单元，该第一放大单元包括第一放大光纤，该第一放大单元适于（1）在至少一个方向上泵浦（2）频带和L波段光信号，以及（3）输出放大自发辐射（ASE），第二放大单元，包括适于被放大的ASE泵浦的第二放大光纤，并且二次放大放大的L波段光信号，带泵浦光源，包括适于在被ASE泵浦的同时被泵浦至少一个方向的第三放大光纤，以及用于泵浦第二放大光纤的输出放大的ASE。

3. 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）。

4. 发明申请

US20060045081A1 Data multiplexing method, field programmable gate array, and optical network 有权
公开(公告)号：US20060045081A1
公开(公告)日：2006-03-02
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： H04L12/28
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.

5. 发明授权

US06944405B2 Bit-rate-independent optical cross-connect device in optical transmission system 失效
标题翻译：光传输系统中的比特率独立光交叉设备
公开(公告)号：US06944405B2
公开(公告)日：2005-09-13
申请号：US09953637
申请日：2001-09-17
申请人： Han-Lim Lee , Byung-Jik Kim , Jun-Ho Koh , Seong-Taek Hwang , Yun-Je Oh
发明人： Han-Lim Lee , Byung-Jik Kim , Jun-Ho Koh , Seong-Taek Hwang , Yun-Je Oh
IPC分类号： H04B10/00 , H04B10/27 , H04Q3/52 , H04Q11/00 , H04Q11/04 , H04B10/08 , H04B17/00
CPC分类号： H04Q11/0005 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/0039 , H04Q2011/0045
摘要： This invention provides an optical transmission with a demultiplexer for demultiplexing an input optical signal into optical signals of different channels and a multiplexer for multiplexing the optical signals outputted from the demultiplexer. The optical cross-connect device includes: N BICDR (Bit Rate Independent Clock and Data Recovery) receivers each for receiving the associated optical signals outputted from the demultiplexer, for converting the associated optical signal into an electrical signal and reproducing clocks and data based on the bit rate of the electrical signal; a switchboard with a cross-connect switch for receiving output signals from the respective N BICDR receiver; N bit rate discriminating units for receiving the output signals from the N BICDR receivers, respectively, thereby outputting bit rate discriminating signals associated with the N BICDR receivers, respectively; a temperature sensing unit for outputting a temperature sensing signal; and, a central processing unit for receiving the bit rate discriminating signals from the N bit rate discriminating unit, along with the temperature sensing signal from the temperature sensing unit, for compensating each of the received bit rate discriminating signals with a temperature-dependent bit rate value read out, based on the temperature sensing signal, from a memory, and for controlling the bit rate of the associated BICDR receiver based on the compensated bit rate.
摘要翻译：本发明提供了一种具有解复用器的光传输器，用于将输入光信号解复用为不同信道的光信号，以及复用器，用于复用从解复用器输出的光信号。光交叉设备包括：N个BICDR（比特率独立时钟和数据恢复）接收机，每个接收器用于接收从解复用器输出的相关联的光信号，用于将相关联的光信号转换成电信号，并基于该信号再现时钟和数据比特率的电信号; 具有交叉连接开关的交换机，用于接收来自相应N BICDR接收机的输出信号; N比特率鉴别单元，用于分别从N个BICDR接收机接收输出信号，从而分别输出与N个BICDR接收机相关联的比特率鉴别信号; 用于输出温度感测信号的温度检测单元; 以及用于从温度感测单元接收来自N比特率鉴别单元的比特率鉴别信号的中央处理单元，用于以温度依赖比特率对每个接收的比特率鉴别信号进行补偿基于温度感测信号从存储器读出，并且用于基于补偿的比特率来控制相关联的BICDR接收器的比特率。

6. 发明授权

US07340171B2 FTTH system for broadcast/communication convergence using IEEE 1394 失效
标题翻译：使用IEEE 1394的广播/通信融合FTTH系统
公开(公告)号：US07340171B2
公开(公告)日：2008-03-04
申请号：US10937626
申请日：2004-09-09
申请人： Kwan-Woong Song , Jeong-Rok Park , Jae-Hun Cho , Jun-Ho Koh
发明人： Kwan-Woong Song , Jeong-Rok Park , Jae-Hun Cho , Jun-Ho Koh
IPC分类号： H04J14/00
CPC分类号： H04H20/77 , H04J14/02 , H04J14/0226 , H04J14/0232 , H04J14/0247 , H04J14/0252 , H04J14/0282 , H04Q11/0067 , H04Q2011/0064
摘要： A broadcast/communication convergence system, and an FTTH (Fiber To The Home) system that can accommodate broadcast signals of various channels and variable band signals by converging broadcast and communication signals and transmitting the converged broadcast and communication signals using an IEEE 1394 transmission method serving as a standard interface in the FTTH system for broadcast/communication convergence. An OLT (Optical Line Terminal) transfers a plurality of broadcast signals and a communication signal received from external broadcast and communication providers through a single optical signal (A). An ONU (Optical Network Unit) receives the optical signal (A) from the OLT, separates the received optical signal into the plurality of broadcast signals and the communication signal, opto-electrically converts the plurality of broadcast signals and the communication signal, switches the converted broadcast signals subscriber by subscriber, combines the converted communication signal with the switched converted broadcast signals. The result is transferred to a corresponding subscriber through a single optical signal (B). A gateway at each subscriber is implemented by IEEE 1394 protocol to receive the optical signal (B) from the ONU, separate the received optical signal into the broadcast signals and the communication signal, and transfer the broadcast signals and the communication signal to a corresponding subscriber device.
摘要翻译：广播/通信会聚系统和FTTH（光纤到户）系统，其可以通过会聚广播和通信信号并且使用服务的IEEE 1394传输方法来发送会聚的广播和通信信号来适应各种频道和可变频带信号的广播信号作为广播/通信融合FTTH系统的标准接口。 OLT（光线路终端）通过单个光信号（A）传送从外部广播和通信提供者接收的多个广播信号和通信信号。 ONU（光网络单元）从OLT接收光信号（A），将接收到的光信号分离成多个广播信号和通信信号，对多个广播信号和通信信号进行光电转换，切换由用户转换的广播信号用户组合转换后的通信信号与切换转换的广播信号。结果通过单个光信号（B）传送到相应的用户。每个用户的网关由IEEE 1394协议实现，用于从ONU接收光信号（B），将接收的光信号分离成广播信号和通信信号，并将广播信号和通信信号传送到相应的用户设备。

7. 发明申请

US20050169632A1 FTTH system for broadcast/communication convergence using IEEE 1394 失效
标题翻译：使用IEEE 1394的广播/通信融合FTTH系统
公开(公告)号：US20050169632A1
公开(公告)日：2005-08-04
申请号：US10937626
申请日：2004-09-09
申请人： Kwan-Woong Song , Jeong-Rok Park , Jae-Hun Cho , Jun-Ho Koh
发明人： Kwan-Woong Song , Jeong-Rok Park , Jae-Hun Cho , Jun-Ho Koh
IPC分类号： G06F13/00 , H04B10/2581 , H04H1/00 , H04H20/77 , H04J14/00 , H04J14/02 , H04J14/08 , H04L12/28 , H04L12/44 , H04L12/66 , H04L29/06 , H04N7/173 , H04N7/22 , H04N21/61 , H04N21/647
CPC分类号： H04H20/77 , H04J14/02 , H04J14/0226 , H04J14/0232 , H04J14/0247 , H04J14/0252 , H04J14/0282 , H04Q11/0067 , H04Q2011/0064
摘要： A broadcast/communication convergence system, and an FTTH (Fiber To The Home) system that can accommodate broadcast signals of various channels and variable band signals by converging broadcast and communication signals and transmitting the converged broadcast and communication signals using an IEEE 1394 transmission method serving as a standard interface in the FTTH system for broadcast/communication convergence. An OLT (Optical Line Terminal) transfers a plurality of broadcast signals and a communication signal received from external broadcast and communication providers through a single optical signal (A). An ONU (Optical Network Unit) receives the optical signal (A) from the OLT, separates the received optical signal into the plurality of broadcast signals and the communication signal, opto-electrically converts the plurality of broadcast signals and the communication signal, switches the converted broadcast signals subscriber by subscriber, combines the converted communication signal with the switched converted broadcast signals. The result is transferred to a corresponding subscriber through a single optical signal (B). A gateway at each subscriber is implemented by IEEE 1394 protocol to receive the optical signal (B) from the ONU, separate the received optical signal into the broadcast signals and the communication signal, and transfer the broadcast signals and the communication signal to a corresponding subscriber device.
摘要翻译：广播/通信会聚系统和FTTH（光纤到户）系统，其可以通过会聚广播和通信信号并且使用服务的IEEE 1394传输方法来发送会聚的广播和通信信号来适应各种频道和可变频带信号的广播信号作为广播/通信融合FTTH系统的标准接口。 OLT（光线路终端）通过单个光信号（A）传送从外部广播和通信提供者接收的多个广播信号和通信信号。 ONU（光网络单元）从OLT接收光信号（A），将接收到的光信号分离成多个广播信号和通信信号，对多个广播信号和通信信号进行光电转换，切换由用户转换的广播信号用户组合转换后的通信信号与切换转换的广播信号。结果通过单个光信号（B）传送到相应的用户。每个用户的网关由IEEE 1394协议实现，用于从ONU接收光信号（B），将接收的光信号分离成广播信号和通信信号，并将广播信号和通信信号传送到相应的用户设备。

8. 发明授权

US06580553B2 Automatic gain control device of optical fiber amplifier 失效
标题翻译：光纤放大器自动增益控制装置
公开(公告)号：US06580553B2
公开(公告)日：2003-06-17
申请号：US10046355
申请日：2002-01-14
申请人： Chan-Youl Kim , Yun-Je Oh , Seong-Taek Hwang , Jun-Ho Koh
发明人： Chan-Youl Kim , Yun-Je Oh , Seong-Taek Hwang , Jun-Ho Koh
IPC分类号： H01S300
CPC分类号： H01S3/06754 , H01S3/10015 , H01S3/1301
摘要： An automatic gain control device of an optical fiber amplifier that outputs a compensation signal to control a gain value of the optical fiber amplifier is disclosed. The device includes: a first optical detector for partially converting an input optical signal to the optical fiber amplifier into a first electrical signal; a second optical detector for partially converting an output optical signal from the optical fiber amplifier into a second electrical signal; a first programmable amplifier having a first gain value set based on a first control signal, the first programmable amplifier inputting the first electrical signal and amplifying it at the first gain value to output a first amplified signal; a second programmable amplifier having a second gain value set based on a second control signal, the second programmable amplifier inputting the second electrical signal and amplifying it at the second gain value to output a second amplified signal; a proportional-integral derivative (PID) for outputting the compensation signal, the compensation signal corresponding to the difference between the power level of the first amplified signal and the power level of the second electrical signal; and, a controller for outputting the second control signal to the second programmable amplifier such that it has the second gain value based on a third gain value and for varying the first gain value of the first programmable amplifier until the first electrical signal and second amplified signal become the same in power level, thereby changing the gain value of the optical fiber amplifier to the third gain value.
摘要翻译：公开了一种输出补偿信号以控制光纤放大器的增益值的光纤放大器的自动增益控制装置。该装置包括：第一光学检测器，用于将输入光信号部分地转换成光纤放大器为第一电信号; 第二光学检测器，用于将来自光纤放大器的输出光信号部分地转换成第二电信号; 第一可编程放大器，具有基于第一控制信号设定的第一增益值，第一可编程放大器输入第一电信号并以第一增益值放大第一增益值，以输出第一放大信号; 第二可编程放大器，具有基于第二控制信号设定的第二增益值，第二可编程放大器输入第二电信号并以第二增益值放大第二增益值，以输出第二放大信号; 用于输出所述补偿信号的比例积分微分（PID），所述补偿信号对应于所述第一放大信号的功率电平与所述第二电信号的功率电平之差; 以及控制器，用于将第二控制信号输出到第二可编程放大器，使得其具有基于第三增益值的第二增益值，并且用于改变第一可编程放大器的第一增益值，直到第一电信号和第二放大信号在功率电平上变得相同，从而将光纤放大器的增益值改变为第三增益值。

9. 发明申请

US20060159093A1 Broadcast splitter enabling selective transmission in real time 审中-公开
标题翻译：广播分路器实时选择传输
公开(公告)号：US20060159093A1
公开(公告)日：2006-07-20
申请号：US11336009
申请日：2006-01-20
申请人： Young-Hun Joo , Chang-Sup Shim , Jun-Ho Koh , Kwan-Woong Song , Yong-Deok Kim
发明人： Young-Hun Joo , Chang-Sup Shim , Jun-Ho Koh , Kwan-Woong Song , Yong-Deok Kim
IPC分类号： H04L12/56
CPC分类号： H04H40/18 , H04N7/17318 , H04N21/23608 , H04N21/6581
摘要： Disclosed is a broadcast splitter enabling a selective transmission in real time. The broadcast splitter divides one multi-program transport stream (MPTS), which is obtained by multiplexing motion picture expert group-2 transport streams (MPEG-2TSs), into several single program transport streams (SPTSs). In particular, the broadcast splitter for MPEG-2TSs has a function of selecting a desired SPTS by performing a switching operation with respect to an MPTS in real-time without storing the MPTS when the MPTS is split into several SPTSs. Accordingly, it is possible to transmit MPTS signals in real time because desired TSs are extracted and delivered to output ports in real time by using a broadcast switch without storing the MPTS signals in a storage unit such as a RAM.
摘要翻译：公开了能实时选择性传输的广播分路器。广播分组器将通过将运动图像专家组2传输流（MPEG-2TS）复用到多个单个节目传输流（SPTS）中获得的一个多节目传输流（MPTS）分割。特别地，MPEG-2TS的广播分离器具有通过在MPTS被分割成多个SPTS时实时地执行MPTS的切换操作而不存储MPTS的情况下选择所需的SPTS的功能。因此，可以实时地发送MPTS信号，因为通过使用广播开关实时提取所需的TS并将其传送到输出端口，而不将MPTS信号存储在诸如RAM的存储单元中。

10. 发明申请

US20060146775A1 Access point for ensuring quality of service of broadcasting service in wireless local area network 审中-公开
标题翻译：确保无线局域网广播业务质量的接入点
公开(公告)号：US20060146775A1
公开(公告)日：2006-07-06
申请号：US11301597
申请日：2005-12-13
申请人： Kwan-Woong Song , Chang-Sup Shim , Jun-Ho Koh , Jong-Hun Lee
发明人： Kwan-Woong Song , Chang-Sup Shim , Jun-Ho Koh , Jong-Hun Lee
IPC分类号： H04Q7/24 , H04L12/54
CPC分类号： H04L47/788 , H04L47/14 , H04L47/15 , H04L47/24 , H04L47/70 , H04L47/806 , H04L47/824 , H04W28/20 , H04W72/005 , H04W72/12 , H04W84/12
摘要： An access point (AP) for ensuring a Quality of Service (QoS) of a broadcasting service in a Wireless Local Area Network (WLAN) is provided. A broadcast signal input unit receives a broadcast signal and depacketizes the received broadcast signal into a transport stream. A broadcast signal control unit receives channel selection information of a terminal, creates a zapping signal (protocol) and a control signal using bandwidth information to control a broadcast signal. A broadcast signal switching unit selectively receives the transport stream using the zapping signal, stores the received transport stream for a predetermined amount of time, and outputs the stored transport stream to the broadcast signal control unit through time slicing using the control signal.
摘要翻译：提供了一种用于确保无线局域网（WLAN）中的广播服务的服务质量（QoS）的接入点（AP）。广播信号输入单元接收广播信号并将接收到的广播信号分组为传输流。广播信号控制单元接收终端的频道选择信息，使用带宽信息创建切换信号（协议）和控制信号以控制广播信号。广播信号切换单元使用切换信号选择性地接收传输流，将接收到的传输流存储预定的时间量，并通过使用控制信号的时间分片将所存储的传输流输出到广播信号控制单元。

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