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    METHOD FOR PROTECTION SWITCHING IN ETHERNET RING NETWORK
    1.
    发明申请
    METHOD FOR PROTECTION SWITCHING IN ETHERNET RING NETWORK 审中-公开
    以太网环网保护切换方法

    公开(公告)号：US20100110881A1

    公开(公告)日：2010-05-06

    申请号：US12593955

    申请日：2008-03-31

    申请人： Jeong-Dong Ryoo ,  June-Koo Rhee ,  Jin-Sung Im ,  Bheom-Soon Joo ,  Young-Sun Kim ,  Zahir Uddin Ahmad

    发明人： Jeong-Dong Ryoo ,  June-Koo Rhee ,  Jin-Sung Im ,  Bheom-Soon Joo ,  Young-Sun Kim ,  Zahir Uddin Ahmad

    IPC分类号： G06F11/00 ,  H04L12/26

    CPC分类号： H04L12/4625 ,  H04L12/42 ,  H04L12/4641 ,  H04L41/0668

    摘要： Provided is a protection switching method via forwarding table correction in an Ethernet ring network. Upon detecting a failure in a link, a node generates a protection switching frame including an address list of a forwarding table corresponding to a port connected to the link, and transmits the protection switching frame to a port at an opposite direction of the link. A node that receives the protection switching frame deletes its own address from the address list included in the protection switching frame, and changes a port number of an address in the address list of the protection switching frame from among addresses of the forwarding table corresponding to a port that received the protection switching frame to a port number in an opposite direction of the port that received the protection switching frame or deletes the port number of the address in the address list.

    摘要翻译： 提供了一种通过以太网环网中的转发表校正的保护倒换方法。 在检测到链路故障时，节点生成保护倒换帧，该保护倒换帧包括与连接到该链路的端口对应的转发表的地址列表，并将保护倒换帧发送到与该链路相反方向的端口。 接收到保护倒换帧的节点从保护倒换帧中包含的地址列表中删除其自己的地址，并且将与保护倒换帧对应的转发表的地址中的保护倒换帧的地址列表中的地址的端口号改变为 接收到保护倒换帧的端口与接收到保护倒换帧的端口相反的端口号，或者删除地址列表中的地址的端口号。

    Communication method using code packet in wireless network
    4.
    发明授权
    Communication method using code packet in wireless network 有权
    在无线网络中使用代码分组的通信方法

    公开(公告)号：US08332713B2

    公开(公告)日：2012-12-11

    申请号：US12722077

    申请日：2010-03-11

    申请人： Sung Bo Yang ,  June-Koo Rhee ,  YongHwan Bang ,  DooJung Lee

    发明人： Sung Bo Yang ,  June-Koo Rhee ,  YongHwan Bang ,  DooJung Lee

    IPC分类号： G08C25/02 ,  H04L1/18

    CPC分类号： H04L1/1887 ,  H04L2001/0093

    摘要： The present invention, in preferred aspects, provides a communication method using a network coding packet in a wireless network, with reduced occurrence of negative acknowledgements, between a access point and plural mobile terminals. In preferred embodiments of the present invention, a communication method using a network coding packet in a wireless network comprises: (a) transmitting plural downlink multicast packets, each containing serial numbers of packets, to the first and second mobile terminals sequentially; (b) receiving a first negative acknowledgement from the first mobile terminal; (c) receiving a second negative acknowledgement from the first mobile terminal or the second negative acknowledgement skipping the first negative acknowledgement on occurrence of the first packet error at the second mobile terminal; and (d) transmitting a restoration packet containing exclusive OR packet of all errored packets in the restoration period defined in reference to the second negative acknowledgement from the first and second mobile terminals.

    摘要翻译： 本发明在优选方面提供了一种在无线网络中使用网络编码分组的通信方法，在接入点和多个移动终端之间减少了否定确认的发生。 在本发明的优选实施例中，在无线网络中使用网络编码分组的通信方法包括：（a）将包含序列号的多个下行链路多播分组顺序发送到第一和第二移动终端; （b）从第一移动终端接收第一否定确认; （c）在第二移动终端发生第一分组错误时从第一移动终端接收第二否定确认或第二否定确认跳过第一否定确认; 以及（d）在参考来自第一和第二移动终端的第二否定确认定义的恢复周期中，发送包含所有错误分组的异或分组的恢复分组。

    COMMUNICATION METHOD USING CODE PACKET IN WIRELESS NETWORK
    5.
    发明申请
    COMMUNICATION METHOD USING CODE PACKET IN WIRELESS NETWORK 有权
    在无线网络中使用代码分组的通信方法

    公开(公告)号：US20100235703A1

    公开(公告)日：2010-09-16

    申请号：US12722077

    申请日：2010-03-11

    申请人： Sung Bo Yang ,  June-Koo Rhee ,  YongHwan Bang ,  DooJung Lee

    发明人： Sung Bo Yang ,  June-Koo Rhee ,  YongHwan Bang ,  DooJung Lee

    IPC分类号： H04L1/18

    CPC分类号： H04L1/1887 ,  H04L2001/0093

    摘要： The present invention, in preferred aspects, provides a communication method using a network coding packet in a wireless network, with reduced occurrence of negative acknowledgements, between a access point and plural mobile terminals. In preferred embodiments of the present invention, a communication method using a network coding packet in a wireless network comprises: (a) transmitting plural downlink multicast packets, each containing serial numbers of packets, to the first and second mobile terminals sequentially; (b) receiving a first negative acknowledgement from the first mobile terminal; (c) receiving a second negative acknowledgement from the first mobile terminal or the second negative acknowledgement skipping the first negative acknowledgement on occurrence of the first packet error at the second mobile terminal; and (d) transmitting a restoration packet containing exclusive OR packet of all errored packets in the restoration period defined in reference to the second negative acknowledgement from the first and second mobile terminals.

    摘要翻译： 本发明在优选方面提供了一种在无线网络中使用网络编码分组的通信方法，在接入点和多个移动终端之间减少了否定确认的发生。 在本发明的优选实施例中，在无线网络中使用网络编码分组的通信方法包括：（a）将包含序列号的多个下行链路多播分组顺序发送到第一和第二移动终端; （b）从第一移动终端接收第一否定确认; （c）在第二移动终端发生第一分组错误时从第一移动终端接收第二否定确认或第二否定确认跳过第一否定确认; 以及（d）在参考来自第一和第二移动终端的第二否定确认定义的恢复周期中，发送包含所有错误分组的异或分组的恢复分组。

    Method and system to reduce FWM penalty in NRZ WDM systems
    6.
    发明授权
    Method and system to reduce FWM penalty in NRZ WDM systems 有权
    NRZ WDM系统减少FWM损失的方法和系统

    公开(公告)号：US06606178B1

    公开(公告)日：2003-08-12

    申请号：US09401871

    申请日：1999-09-23

    申请人： June-Koo Rhee ,  Jason E. Hurley

    发明人： June-Koo Rhee ,  Jason E. Hurley

    IPC分类号： H04B1004

    CPC分类号： H04B10/2563 ,  H04J14/02

    摘要： A method and a system are disclosed for reducing four-wave mixing (FWM) penalties in an optical transmission network. The FWM penalties are reduced by simultaneously and periodically modulating the phase of the optical signals propagating through a long fiber waveguide at a modulation frequency that causes destructive interference of the FWM products that are otherwise generated along the length of the long fiber waveguide. The method may be implemented in an optical transmitter for an optical transmission network by providing a phase modulator between the multiplexer and an optical boost amplifier so as to simultaneously modulate the phase of all the optical signals that are transmitted through the long fiber waveguide. Alternatively, a phase modulator may be disposed between each source of modulated optical signals and the multiplexer so as to separately modulate the phase of all the optical signals that are subsequently transmitted through the long fiber waveguide.

    摘要翻译： 公开了用于减少光传输网络中的四波混频（FWM）处罚的方法和系统。 通过同时且周期性地调制通过长纤维波导传播的光信号的相位以调制频率来降低​​FWM处罚，该调制频率导致沿着长光纤波导长度另外产生的FWM产物的相消干涉。 该方法可以通过在多路复用器和光学升压放大器之间提供相位调制器来实现光传输网络的光发射机，以便同时调制通过长光纤波导传输的所有光信号的相位。 或者，可以将相位调制器设置在每个调制光信号源和多路复用器之间，以分别调制随后通过长光纤波导传输的所有光信号的相位。

    Apparatus for spectral encoding and decoding of femtosecond optical pulses
    7.
    发明授权
    Apparatus for spectral encoding and decoding of femtosecond optical pulses 失效
    用于飞秒光脉冲频谱编码和解码的装置

    公开(公告)号：US5907421A

    公开(公告)日：1999-05-25

    申请号：US619090

    申请日：1996-03-20

    申请人： Warren S. Warren ,  June-Koo Rhee ,  Hisashi Kobayashi

    发明人： Warren S. Warren ,  June-Koo Rhee ,  Hisashi Kobayashi

    IPC分类号： H04B10/14 ,  H04B10/04

    CPC分类号： H04B10/676

    摘要： A DPSK communication system employs an optical signal which comprises plural, coherent, optical frequencies, each optical frequency positioned within a range of frequencies (i.e., a "frequency slot"). The optical signal comprises plural frequency slots, with the wavefront in each time segment of each frequency slot being phase modulated in accordance with data signals. Plural frequency slots are transmitted "in parallel", in each of a plurality of succeeding time segments. A demodulator includes first and second optical paths, the first component of the optical signal directed onto the first optical path and a second component directed onto the second optical path. A modulator is positioned in at least one of the optical paths and is responsive, during a time segment, to a first applied control signal, to alter the phase, and thus the frequency, of the first component by approximately one frequency slot. At the output of the first and second optical paths, an optical coupler interferes the first component and the second component so as to enable constructive and destructive interference therebetween in accordance with respective phase modulations thereof.

    摘要翻译： DPSK通信系统采用包括多个相干光频率的光信号，每个光频率位于频率范围内（即，“频率槽”）。 光信号包括多个频率时隙，每个时隙的每个时间段中的波阵面根据数据信号进行相位调制。 在多个后续时间段中的每一个中，“并行地”发送多个时隙。 解调器包括第一和第二光路，光信号的第一分量被引导到第一光路上，第二分量指向第二光路。 调制器位于至少一个光路中，并且在时间段期间响应于第一施加的控制信号，以将第一分量的相位以及因此的频率改变大约一个频率槽。 在第一和第二光路的输出处，光耦合器干扰第一部件和第二部件，以便根据其相应的相位调制来实现它们之间的建构性和相消干涉。

    PACKET SWITCHING SYSTEM AND METHOD
    8.
    发明申请
    PACKET SWITCHING SYSTEM AND METHOD 有权
    分组开关系统及方法

    公开(公告)号：US20120087375A1

    公开(公告)日：2012-04-12

    申请号：US13113444

    申请日：2011-05-23

    申请人： June-Koo Rhee ,  Chan-Kyun Lee

    发明人： June-Koo Rhee ,  Chan-Kyun Lee

    IPC分类号： H04L12/56

    CPC分类号： H04L49/15 ,  H04L49/101 ,  H04Q11/0005 ,  H04Q11/0062

    摘要： A packet switching system includes a plurality of switch fabrics connected in cascade and a plurality of buffers respectively connected to the plurality of switch fabrics. In the event of packet competition, the plurality of switch fabrics buffer the competing packets to the corresponding buffers through buffer connection ports, and forward the competing packets in excess of the number of buffer connection ports to an adjacent switch fabric through switch connection ports.

    摘要翻译： 分组交换系统包括级联连接的多个交换结构和分别连接到多个交换结构的多个缓冲器。 在分组竞争的情况下，多个交换结构通过缓冲器连接端口将竞争分组缓冲到相应的缓冲器，并通过交换机连接端口将超过缓冲区连接端口数量的竞争分组转发到相邻的交换机结构。

    TIMESTAMPING APPARATUS AND METHOD
    9.
    发明申请
    TIMESTAMPING APPARATUS AND METHOD 审中-公开
    计时装置和方法

    公开(公告)号：US20100287402A1

    公开(公告)日：2010-11-11

    申请号：US12776875

    申请日：2010-05-10

    申请人： Seung-Hwan KIM ,  Kwang-Joon Kim ,  June-Koo Rhee ,  Kyu-Sang Lee ,  Chan-Kyun Lee ,  Seong-Jin Lim

    发明人： Seung-Hwan KIM ,  Kwang-Joon Kim ,  June-Koo Rhee ,  Kyu-Sang Lee ,  Chan-Kyun Lee ,  Seong-Jin Lim

    IPC分类号： G06F1/12

    CPC分类号： H04L67/325 ,  H04J3/067 ,  H04L63/123 ,  H04L69/28 ,  H04L2463/121

    摘要： A timestamping apparatus and method are provided. The timestamping apparatus implements timestamping on a synchronization message at a physical layer when the synchronization message is transmitted to the physical layer. At an application layer of the timestamping apparatus, a bit stream including a start indicator bit informing a start of a pseudo random number sequence, the pseudo random number sequence, and an end indicator bit informing an end of the pseudo random number sequence is generated to check whether or not a message received from the physical layer is the synchronization message, and is inserted as signature information of the synchronization message. At the physical layer of the timestamping apparatus, the signature information included in the synchronization message is detected, and timestamping information is generated when the signature information is detected.

    摘要翻译： 提供了一种时间戳装置和方法。 当同步消息被发送到物理层时，时间戳装置在物理层上的同步消息上实现时间戳。 在时间戳装置的应用层，生成包括通知伪随机数序列开始的开始指示符位，伪随机数序列以及通知伪随机数序列结束的结束指示符位的位流， 检查从物理层接收的消息是否是同步消息，并作为同步消息的签名信息插入。 在时间戳装置的物理层，检测包括在同步消息中的签名信息，并且当检测到签名信息时生成时间戳信息。