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    Network system for establishing path using redundancy degree and method thereof
    41.
    发明申请
    Network system for establishing path using redundancy degree and method thereof 有权
    用冗余度建立路径的网络系统及其方法

    公开(公告)号：US20050157697A1

    公开(公告)日：2005-07-21

    申请号：US11035895

    申请日：2005-01-18

    Applicant: Ji-hoon Lee ,  Jung-ho Kim ,  Sun-shin An ,  Won-jong Noh

    Inventor： Ji-hoon Lee ,  Jung-ho Kim ,  Sun-shin An ,  Won-jong Noh

    IPC: H04L12/28 ,  H04J3/24 ,  H04L12/56

    CPC classification number: H04W40/28 ,  H04L45/128 ,  H04L45/302 ,  H04L45/36

    Abstract: A method for establishing a path between nodes in a wireless network system. A source node broadcasts a route request (RREQ) packet for a destination node. A mobile node between the source node and the destination node, upon receiving the RREQ packet, appends a redundancy degree with respect to an adjacent node to the RREQ packet and broadcasts the RREQ packet. The destination node selects an optimal path by checking the redundancy degree received along each path when the RREQ packet is received along multiple paths, and the destination node establishes an optimal path to the source node by transmitting a route reply (RREP) packet along the optimal path. Accordingly, the path is established suitable for the quality of service of data to be transmitted and a lost path is promptly recoverable by reference to information stored at each mobile node identifying redundant paths available to the mobile node.

    Abstract translation: 一种用于在无线网络系统中的节点之间建立路径的方法。 源节点广播目的地节点的路由请求（RREQ）数据包。 在源节点和目的节点之间的移动节点在接收到RREQ分组后，将相邻节点的冗余度附加到RREQ分组并广播RREQ分组。 目的地节点通过检查在沿着多个路径接收到RREQ分组时沿着每个路径接收的冗余度来选择最优路径，并且目的地节点通过沿着最优路由发送路由应答（RREP）分组来建立到源节点的最佳路径 路径。 因此，建立适合于要发送的数据的服务质量的路径，并且可以通过参考存储在每个移动节点处的信息来迅速恢复丢失的路径，该信息标识可用于移动节点的冗余路径。

    Dispersion control fiber and method of manufacturing large size preform thereof
    44.
    发明授权
    Dispersion control fiber and method of manufacturing large size preform thereof 有权
    分散控制纤维及其制造大尺寸预型体的方法

    公开(公告)号：US06697562B1

    公开(公告)日：2004-02-24

    申请号：US09619715

    申请日：2000-07-19

    Applicant: Ji-Hoon Lee ,  Mun-Hyun Do

    Inventor： Ji-Hoon Lee ,  Mun-Hyun Do

    IPC: G02B600

    CPC classification number: G02B6/02009 ,  C03B37/01807 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/36 ,  G02B6/02219 ,  G02B6/02242 ,  G02B6/03622 ,  G02B6/03694 ,  Y02P40/57

    Abstract: A dispersion control fiber and a method of manufacturing a large size preform. The dispersion control fiber includes a core composed of SiO2, GeO2, and P2O5, and a cladding composed of SiO2, GeO2, P2O5, and Freon. The P2O5 content is selected not to exceed 10% total weight of a compound composing the core. The method of manufacturing a large size perform for a dispersion control fiber by an MCVD process includes depositing SiO2, GeO2, P2O5, and Freon in an inner periphery of a deposition tube to form a cladding layer, and depositing SiO2, GeO2, and P2O5 on an inner periphery of the cladding layer to form a core layer.

    Abstract translation: 一种分散控制纤维及其制造方法。 色散控制光纤包括由SiO 2，GeO 2和P 2 O 5组成的芯和由SiO 2，GeO 2，P 2 O 5和氟利昂组成的包层。 选择P2O5含量不超过构成核心的化合物的总重量的10％。 通过MCVD工艺制造用于分散控制光纤的大尺寸的方法包括在沉积管的内周中沉积SiO 2，GeO 2，P 2 O 5和氟利昂以形成包覆层，并将SiO 2，GeO 2和P 2 O 5沉积在 包层的内周，形成芯层。

    Single mode optical fiber having multi-step core structure and method of fabricating the same
    46.
    发明授权
    Single mode optical fiber having multi-step core structure and method of fabricating the same 有权
    具有多级芯结构的单模光纤及其制造方法

    公开(公告)号：US06205279B1

    公开(公告)日：2001-03-20

    申请号：US09186628

    申请日：1998-11-06

    Applicant: Jin-han Kim ,  Mun-hyun Do ,  Ji-hoon Lee

    Inventor： Jin-han Kim ,  Mun-hyun Do ,  Ji-hoon Lee

    IPC: G02B602

    CPC classification number: G02B6/02238 ,  G02B6/03638 ,  G02B6/03666

    Abstract: An optical fiber having a multi-step core structure, and a method of fabricating the same, are provided. The optical fiber includes a central core having a predetermined radius a1 from an central axis and a refractive index n1, a first outer core having a radius a2 and a refractive index n2 smaller than the refractive index n1 and surrounding the central core, a second outer core having a radius a3 and a refractive index n3 smaller than the refractive index n2 and surrounding the first outer core, and a cladding having a radius a4 and a refractive index n0 smaller than the refractive index n3 and surrounding the second outer core, i.e., a1 n2>n3>n0. The diameter of the core is increased by making the refractive index distribution of the core multi-stepped, thus providing easy fabrication. The optical fiber has a low dispersion value in a 1550 nm wavelength, thus making superspeed long distance transmission possible.

    Abstract translation: 提供具有多级芯结构的光纤及其制造方法。 光纤包括具有中心轴的预定半径a1和折射率n1的中心纤芯，第一外芯具有半径a2，折射率n2小于折射率n1并围绕中心芯，第二外芯 芯部具有半径a3，折射率n3小于折射率n2并围绕第一外芯，以及包层，其具有半径a4，折射率n0小于折射率n3并围绕第二外芯，即， a1 n2> n3> n0。 芯的直径通过使芯的折射率分布多级增加，从而提供容易的制造。 光纤在1550nm波长处具有低色散值，从而使得超高距离传输成为可能。

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