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    Apparatus for providing system clock synchronized to a network universally
    11.
    发明申请
    Apparatus for providing system clock synchronized to a network universally 失效
    用于提供与网络普遍同步的系统时钟的装置

    公开(公告)号：US20050135530A1

    公开(公告)日：2005-06-23

    申请号：US10927412

    申请日：2004-08-25

    申请人： Bheom Soon Joo ,  Jae Jeong Lee ,  Hae Won Jung ,  Young Sun Kim

    发明人： Bheom Soon Joo ,  Jae Jeong Lee ,  Hae Won Jung ,  Young Sun Kim

    IPC分类号： H03D3/24 ,  H04L7/00

    CPC分类号： H04L7/0012

    摘要： Provided is an apparatus for providing a system clock synchronized to a network universally. The apparatus includes a network synchronization reference signal generating unit that outputs a reference signal for network synchronization; a network synchronization controller that generates a first control voltage that allows a first clock pulse to be in synchronization with the reference signal for network synchronization; an OVCXO that generates the first clock pulse by application of the first control voltage; a system synchronization reference signal generator that generates reference signals for system synchronization; a system synchronization controller that generates a second control voltage that allows the system clock to be in synchronization with the reference signal for system synchronization; a VCO that generates a second clock pulse by application of the second control voltage; and a system clock generator that outputs the system clock. Accordingly, it is possible to apply to systems requiring network synchronization.

    摘要翻译： 提供了一种用于提供与网络普遍同步的系统时钟的装置。 该装置包括：网络同步参考信号生成单元，输出用于网络同步的参考信号; 网络同步控制器，其产生允许第一时钟脉冲与用于网络同步的参考信号同步的第一控制电压; OVCXO，其通过施加第一控制电压产生第一时钟脉冲; 产生用于系统同步的参考信号的系统同步参考信号发生器; 系统同步控制器，其产生允许系统时钟与用于系统同步的参考信号同步的第二控制电压; VCO，其通过施加第二控制电压产生第二时钟脉冲; 以及输出系统时钟的系统时钟发生器。 因此，可以应用于需要网络同步的系统。

    Method and apparatus for transmitting error information between ethernet network and synchronous digital hierarchy network
    12.
    发明授权
    Method and apparatus for transmitting error information between ethernet network and synchronous digital hierarchy network 失效
    在以太网和同步数字分层网络之间传输错误信息的方法和装置

    公开(公告)号：US07944841B2

    公开(公告)日：2011-05-17

    申请号：US11947317

    申请日：2007-11-29

    申请人： Ji-Wook Youn ,  Bheom-Soon Joo ,  Jung-Sik Kim

    发明人： Ji-Wook Youn ,  Bheom-Soon Joo ,  Jung-Sik Kim

    IPC分类号： G01R31/08 ,  H04L1/00

    CPC分类号： H04J3/1617 ,  H04J3/14 ,  H04J2203/006 ,  H04L41/06

    摘要： Provided are a method and apparatus for transmitting error information between an Ethernet network and a synchronous digital hierarchy (SDH) network. According to the present invention, when an error occurs in the Ethernet network or the SDH network, OAM information is transferred to the opposite network by using a conventional MAC control frame from a linked part of the Ethernet network and the SDH network and thus the EoS network may be efficiently operated and managed. Also, by using standardized MAC control frame, the present invention may be applied to an existing system without additionally changing hardware or defining a new OAM frame.

    摘要翻译： 提供了一种用于在以太网和同步数字体系（SDH）网络之间传送错误信息的方法和装置。 根据本发明，当在以太网或SDH网络发生错误时，通过使用来自以太网和SDH网络的链接部分的传统MAC控制帧将OAM信息传送到相对网络，从而将EOS 网络可以被有效地操作和管理。 此外，通过使用标准化的MAC控制帧，本发明可以应用于现有系统，而不需要额外地改变硬件或定义新的OAM帧。

    METHOD FOR PROTECTION SWITCHING IN ETHERNET RING NETWORK
    13.
    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。

    METHOD AND APPARATUS FOR GUARANTEEING SERVICE SPECIFIC BANDWIDTH IN THE ETHERNET FRAME TRANSMISSION SYSTEM
    14.
    发明申请
    METHOD AND APPARATUS FOR GUARANTEEING SERVICE SPECIFIC BANDWIDTH IN THE ETHERNET FRAME TRANSMISSION SYSTEM 审中-公开
    在以太网帧传输系统中保证服务特定带宽的方法和装置

    公开(公告)号：US20080114893A1

    公开(公告)日：2008-05-15

    申请号：US11923944

    申请日：2007-10-25

    申请人： Ji Wook YOUN ,  Bheom Soon JOO ,  Jung Sik KIM

    发明人： Ji Wook YOUN ,  Bheom Soon JOO ,  Jung Sik KIM

    IPC分类号： G06F15/16

    CPC分类号： H04L12/66

    摘要： An apparatus and method for guaranteeing a service specific bandwidth in an Ethernet frame transmission system. In the method, memory status information of an input frame buffer and usable bandwidth information of a present Ethernet network are obtained if congestions or errors occur in the Ethernet frame transmission system. Then, different pause times by service specific priorities are set based on the memory status information and the usable bandwidth information. A MAC control frame including the pause frame is provided to the corresponding adjacent nodes. A media access control processor, if the received Ethernet frame is the MAC control frame, detects the pause times by priorities in the detected pause frame. A single processor generates drop information by priorities. A network processor drops a corresponding Ethernet frame according to the drop information by priorities, which is generated from the signal processor.

    摘要翻译： 一种用于在以太网帧传输系统中保证业务特定带宽的装置和方法。 在该方法中，如果以太网帧传输系统发生拥塞或错误，则获得输入帧缓冲器的存储器状态信息和当前以太网的可用带宽信息。 然后，基于存储器状态信息和可用带宽信息来设定根据服务特定优先级的不同暂停时间。 包括暂停帧的MAC控制帧被提供给相应的相邻节点。 如果所接收的以太网帧是MAC控制帧，则媒体接入控制处理器根据检测到的暂停帧中的优先级来检测暂停时间。 单个处理器通过优先级生成丢弃信息。 网络处理器根据从信号处理器产生的优先级根据丢弃信息丢弃对应的以太网帧。

    Apparatus for managing Ethernet physical layer registers using external bus interface and method thereof
    15.
    发明授权
    Apparatus for managing Ethernet physical layer registers using external bus interface and method thereof 失效
    用于使用外部总线接口管理以太网物理层寄存器的装置及其方法

    公开(公告)号：US07185134B2

    公开(公告)日：2007-02-27

    申请号：US10704020

    申请日：2003-11-06

    申请人： Daeub Kim ,  Bheom Soon Joo ,  Hae Won Jung ,  Hyeong Ho Lee

    发明人： Daeub Kim ,  Bheom Soon Joo ,  Hae Won Jung ,  Hyeong Ho Lee

    IPC分类号： G06F13/20 ,  G06F13/36 ,  G06F13/14 ,  G06F3/00

    CPC分类号： G06F13/387

    摘要： An apparatus for managing Ethernet physical layer registers and a method thereof are provided. The apparatus comprises a central processing unit (CPU) with an external bus interface function, and an interface conversion unit which is connected to the CPU through the external bus interface, converts the external bus interface into management data input/output (MDIO) interface and performs communications with the physical layer apparatus.

    摘要翻译： 提供一种用于管理以太网物理层寄存器的装置及其方法。 该装置包括具有外部总线接口功能的中央处理单元（CPU）和通过外部总线接口连接到CPU的接口转换单元，将外部总线接口转换成管理数据输入/输出（MDIO）接口， 与物理层装置进行通信。

    Data receiving apparatus capable of compensating for reduced timing margin caused by inter-symbol interference and method thereof
    16.
    发明申请
    Data receiving apparatus capable of compensating for reduced timing margin caused by inter-symbol interference and method thereof 有权

    公开(公告)号：US20060156105A1

    公开(公告)日：2006-07-13

    申请号：US11181627

    申请日：2005-07-13

    申请人： Tae-Sik Cheung ,  Dae-Ub Kim ,  Bheom-Soon Joo ,  Hae-Won Jung

    发明人： Tae-Sik Cheung ,  Dae-Ub Kim ,  Bheom-Soon Joo ,  Hae-Won Jung

    IPC分类号： G01R31/28

    CPC分类号： H04L25/03012 ,  H04L25/061

    摘要： Provided are a data receiving apparatus that can determine data by adjusting a reference level for determining a logic value of inputted data based on Inter-Symbol Interference in a data signal inputted through a transmission line, and receive the data without errors by compensating for timing margin decrease caused by the inter-symbol interference, and a method thereof. The apparatus includes: a reference generator for monitoring the level of an inputted data signal or generating reference levels according to an external control command; a comparator for comparing the inputted data with the reference levels and determining logic values of the inputted data; a selector for selecting the logic values of the inputted data as a valid logic value; and a selection controller for monitoring the valid logic value of the selector, transmitting a selection control signal to the selector, and controlling a process for selecting the valid logic value.

    Protection switching method based on change in link status in ethernet link aggregation sublayer
    18.
    发明授权
    Protection switching method based on change in link status in ethernet link aggregation sublayer 失效
    基于以太网链路聚合子层链路状态变化的保护倒换方法

    公开(公告)号：US07940645B2

    公开(公告)日：2011-05-10

    申请号：US12156488

    申请日：2008-06-02

    申请人： Dae-ub Kim ,  Jeong-dong Ryoo ,  Bheom-soon Joo ,  Young-sun Kim

    发明人： Dae-ub Kim ,  Jeong-dong Ryoo ,  Bheom-soon Joo ,  Young-sun Kim

    IPC分类号： G01R31/08

    CPC分类号： H04L43/0811 ,  H04L41/06 ,  H04L69/323

    摘要： An Ethernet protection switching method based on a change in link status in a link aggregation sublayer is disclosed. If an Ethernet link aggregation sublayer is present on an Ethernet connection path, a link aggregation sublayer Management Entity Group (MEG) end point is assigned to the Ethernet link aggregation sublayer to generate a link aggregation message for Ethernet connection management and protection switching. When a change in link status is detected in the Ethernet link aggregation sublayer, the link-aggregation-sublayer MEG end point generates and sends the link aggregation message to an MEG end point performing Ethernet connection management and protection switching. Adequate Ethernet protection switching may be performed even in the presence of the link aggregation sublayer.

    摘要翻译： 公开了一种基于链路聚合子层中链路状态变化的以太网保护倒换方法。 如果在以太网连接路径上存在以太网链路聚合子层，则将链路聚合子层管理实体组（MEG）终点分配给以太网链路聚合子层，生成用于以太网连接管理和保护倒换的链路聚合消息。 当在以太网链路聚合子层中检测到链路状态发生变化时，链路聚合子层MEG终端生成并发送链路聚合消息给执行以太网连接管理和保护倒换的MEG端点。 即使在存在链路聚合子层的情况下，也可以进行充分的以太网保护切换。