Optical modulator depressing optical feedback and optical modulating
element and channel optical waveguide used therefore
    1.
    发明授权
    Optical modulator depressing optical feedback and optical modulating element and channel optical waveguide used therefore 失效
    因此光调制器抑制光反馈和光调制元件和通道光波导

    公开(公告)号:US5351320A

    公开(公告)日:1994-09-27

    申请号:US82220

    申请日:1993-06-24

    IPC分类号: G02F1/015 G02F1/017 G02B6/10

    CPC分类号: B82Y20/00 G02F1/01708

    摘要: An optical modulating element has a core layer and first and second cladding layers sandwiching the core layer. The core layer is made of one or semiconductors belonging to a point group 43m or 42m, and has TM.sub.00 and TE.sub.00 propagation modes. The direction of light of said TM.sub.00 and TE.sub.00 propagation modes is parallel to the [110] or [-110] direction of crystal orientation. The change amount of an index of refraction of the core layer caused by the application of an electric field to the core layer in the direction parallel to the [001] direction is different for the two propagation modes.

    摘要翻译: 光调制元件具有芯层和夹着芯层的第一和第二覆层。 核心层由属于43m或42m点组的一个或半导体制成,具有TM00和TE00传播模式。 所述TM00和TE00传播模式的光的方向平行于晶体取向的[110]或[-110]方向。 对于两种传播模式,在与[001]方向平行的方向上对芯层施加电场而引起的芯层的折射率的变化量是不同的。

    Polarizer with patterned diacetylene layer, method for producing the
same, and liquid crystal display device including such polarizer
    2.
    发明授权
    Polarizer with patterned diacetylene layer, method for producing the same, and liquid crystal display device including such polarizer 失效
    具有图案化的乙炔层的偏光镜,其制造方法以及包括这种偏振片的液晶显示装置

    公开(公告)号:US5235449A

    公开(公告)日:1993-08-10

    申请号:US662642

    申请日:1991-03-01

    摘要: A method for producing a polarizer patterned with a plural number of portions having a polarizing ability or direction of polarization comprising the first step of producing a surface oriented in a pre-determined direction on a substrate, the second step of producing a polymerizable molecular layer which comprises polymerizable molecules on the above surface, the third step of polymerizing the molecules in said polymerizable molecular layer into a desired pattern and the fourth step of removing the unpolymerized portion of said polymerizable molecular layer. For example, the following procedure is repeated on one surface of a substrate to be given a polarizing ability: (1) An organic thin film uniformly oriented in a particular direction is produced by the Langmuir-Blodgett method, (2) a polymerizable molecular layer is produced on the above thin film, (3) the molecules in the polymerizable molecular layer is polymerized into a desired pattern and (4) the portion left unpolymerized of the polymerizable molecular layer is removed. By this treatment, a polarizer having as many orientation directions as the number of repetitions is obtained. The orientational order can also be given by rubbing in place of the Langmuir-Blodgett method.

    摘要翻译: 一种用于制造具有多个具有偏振能力或偏振方向的多个部分的偏振器的制造方法,所述方法包括:在基板上产生沿预定方向取向的表面的第一步骤;制备可聚合分子层的第二步骤, 包括在上述表面上的可聚合分子,将所述可聚合分子层中的分子聚合成所需图案的第三步骤和除去所述可聚合分子层的未聚合部分的第四步骤。 例如,在基板的一个表面上重复以下步骤以赋予极化能力:(1)通过Langmuir-Blodgett方法产生沿特定方向均匀取向的有机薄膜,(2)可聚合分子层 在上述薄膜上制造,(3)可聚合分子层中的分子被聚合成所需的图案,(4)除去聚合性分子层未聚合的部分。 通过该处理,获得具有与重复次数相同的取向方向的偏振片。 也可以通过摩擦代替Langmuir-Blodgett方法给出取向顺序。

    Optical crossconnect apparatus and optical transmission system
    3.
    发明授权
    Optical crossconnect apparatus and optical transmission system 失效
    光交叉连接装置和光传输系统

    公开(公告)号:US07272314B2

    公开(公告)日:2007-09-18

    申请号:US10924976

    申请日:2004-08-25

    IPC分类号: H04J14/00

    摘要: An optical crossconnect apparatus which includes one terminal connected to a transmission path from one optical transmission terminal station and another terminal connected to a transmission path from another optical transmission terminal station, a first optical signal switch having “M1” ports and “N1” ports, through which the optical signal can pass, a second optical signal switch having “M2” ports and “N2” ports, through which the optical signal can pass, and “L” optical signal repeaters, one end connected to the “N1” ports of the first optical signal switch, and the other end connected to the “N2” ports of the second optical switch. The “N1” and the “N2” ports are equal to “L” optical signal repeaters. The “M1” ports of the first optical signal switch connected to the one terminal, and the “M2” ports of the second optical signal switch connected to the other terminal are larger than, or equal to 2.

    摘要翻译: 一种光交叉连接装置,包括连接到来自一个光传输终端站的传输路径的一个终端,以及连接到来自另一个光传输终端站的传输路径的另一终端,具有“M 1”端口的第一光信号交换机和“N 1” 光信号可以通过的端口,具有光信号可以通过的“M 2”端口和“N 2”端口的第二光信号交换机和“L”个光信号中继器,一端连接到“ N 1“端口,另一端连接到第二光开关的”N 2“端口。 “N 1”和“N 2”端口等于“L”个光信号中继器。 连接到一个端子的第一光信号开关的“M 1”端口和连接到另一个端子的第二光信号开关的“M 2”端口大于或等于2。

    Optical network
    4.
    发明授权
    Optical network 失效
    光网络

    公开(公告)号:US06643041B1

    公开(公告)日:2003-11-04

    申请号:US09345747

    申请日:1999-07-01

    IPC分类号: H04B1020

    摘要: A first object of the invention of the present application is to provide an optical network capable of flexibly performing a choice of protection optical paths upon the occurrence of a failure without depending on an installation form of an optical transmission line, e.g., an optical fiber. A second object of the invention of the present application is to allow an improvement in the efficiency of use of an optical transmission line, e.g., an optical fiber employed in an optical network. The invention of the present application provides a wavelength division multiplexing transmission optical network having at least a plurality of pieces of transmission equipment and a plurality of optical paths connecting the transmission equipment and wherein wavelengths of predetermined transmission light are assigned to the optical paths and a transmission frame having overhead information is at least used to perform digital transmission.

    摘要翻译: 本发明的第一个目的是提供一种光网络,其能够在发生故障时灵活地执行保护光路的选择,而不依赖于诸如光纤的光传输线的安装形式。 本发明的第二个目的是允许提高光传输线路的使用效率,例如光网络中使用的光纤。 本申请的发明提供了一种具有至少多个传输设备和连接传输设备的多个光路的波分复用传输光网络,其中预定传输光的波长被分配给光路和传输 至少使用具有开销信息的帧来执行数字传输。

    Packet transfer unit
    5.
    发明申请
    Packet transfer unit 有权
    分组传送单元

    公开(公告)号:US20090196293A1

    公开(公告)日:2009-08-06

    申请号:US12385357

    申请日:2009-04-06

    IPC分类号: H04L12/56

    摘要: The present invention relates to a packet transfer unit, which comprises a search key memory that stores a search key for a transfer destination of a packet and verification information generated from the search key, in association with a storage location of transfer information memorized in a transfer information memory, wherein a transfer information acquisition unit searches the search key memory by using the search key generated based on the header information and the verification information generated from the search key, acquires storage location information of the transfer information from the search key memory when a match with the search key and the verification information memorized in the search key memory is found, and acquires the transfer information stored in the transfer information memory based on the acquired storage location information, and wherein a transfer unit transfers the packet based on the acquired transfer information.

    摘要翻译: 本发明涉及一种分组传送单元,其包括搜索密钥存储器,其存储用于分组的传送目的地的搜索关键字和从搜索关键字生成的验证信息,与存储在传送中的传送信息的存储位置相关联 信息存储器,其中传送信息获取单元通过使用基于标题信息生成的搜索关键字和从搜索关键字生成的验证信息来搜索搜索关键字存储器,当搜索关键字存储器 找到与搜索关键字相匹配的存储位置信息和存储在搜索关键字存储器中的验证信息,并且基于获取的存储位置信息获取存储在传送信息存储器中的传送信息,并且其中传送单元基于所获取的传送 信息。

    Packet transfer unit
    7.
    发明授权

    公开(公告)号:US07522592B2

    公开(公告)日:2009-04-21

    申请号:US10954475

    申请日:2004-10-01

    IPC分类号: H04L12/28 H04L12/56

    摘要: The present invention relates to a packet transfer unit, which comprises a search key memory that stores a search key for a transfer destination of a packet and verification information generated from the search key, in association with a storage location of transfer information memorized in a transfer information memory, wherein a transfer information acquisition unit searches the search key memory by using the search key generated based on the header information and the verification information generated from the search key, acquires storage location information of the transfer information from the search key memory when a match with the search key and the verification information memorized in the search key memory is found, and acquires the transfer information stored in the transfer information memory based on the acquired storage location information, and wherein a transfer unit transfers the packet based on the acquired transfer information.

    Packet transfer unit
    8.
    发明申请
    Packet transfer unit 有权
    分组传送单元

    公开(公告)号:US20050074009A1

    公开(公告)日:2005-04-07

    申请号:US10954475

    申请日:2004-10-01

    摘要: The present invention relates to a packet transfer unit, which comprises a search key memory that stores a search key for a transfer destination of a packet and verification information generated from the search key, in association with a storage location of transfer information memorized in a transfer information memory, wherein a transfer information acquisition unit searches the search key memory by using the search key generated based on the header information and the verification information generated from the search key, acquires storage location information of the transfer information from the search key memory when a match with the search key and the verification information memorized in the search key memory is found, and acquires the transfer information stored in the transfer information memory based on the acquired storage location information, and wherein a transfer unit transfers the packet based on the acquired transfer information.

    摘要翻译: 本发明涉及一种分组传送单元,其包括搜索密钥存储器,其存储用于分组的传送目的地的搜索关键字和从搜索关键字生成的验证信息,与存储在传送中的传送信息的存储位置相关联 信息存储器,其中传送信息获取单元通过使用基于标题信息生成的搜索关键字和从搜索关键字生成的验证信息来搜索搜索关键字存储器,当搜索关键字存储器 找到与搜索关键字相匹配的存储位置信息和存储在搜索关键字存储器中的验证信息,并且基于所获取的存储位置信息获取存储在传送信息存储器中的传送信息,并且其中传送单元基于所获取的传送 信息。

    Fault restoration control method and it's apparatus in a communication network
    9.
    发明授权
    Fault restoration control method and it's apparatus in a communication network 失效
    故障恢复控制方法及其在通信网络中的装置

    公开(公告)号:US06304346B1

    公开(公告)日:2001-10-16

    申请号:US09022004

    申请日:1998-02-11

    IPC分类号: H04B1000

    摘要: A method for restoration from a fault in a communication network formed by interconnecting a plurality of nodes including at least one set of node equipment each including a line terminal equipment and an optical cross-connect equipment, via a plurality of transmission lines using optical fibers. According to this method for restoration from a fault, if a line terminal equipment of at least one set of node equipment has detected a fault in an optical fiber under communication, it gives a command functioning as trigger for optical fiber change-over to an optical cross-connect equipment included in the node equipment. Upon receiving this command functioning as the trigger, the optical cross-connect equipment exchanges change-over control information indicating optical switch setting situation between it and an optical cross-connect equipment included in another node equipment, and forms a restoration route.

    摘要翻译: 一种通过使用光纤通过多条传输线将包括至少一组包括线路终端设备和光交叉连接设备的至少一组节点设备的多个节点互连的通信网络中的故障恢复的方法。 根据用于从故障恢复的方法,如果至少一组节点设备的线路终端设备已经检测到在通信中的光纤中的故障,则其给出用作光纤转换的触发的命令到光学 交叉连接设备包括在节点设备中。 在接收到用作触发器的命令时,光交叉连接设备交换指示光开关设置情况的切换控制信息,并且包括在另一节点设备中的光交叉设备之间,形成恢复路由。

    Method and apparatus for composing virtual links in a label switched network
    10.
    发明授权
    Method and apparatus for composing virtual links in a label switched network 有权
    用于在标签交换网络中组合虚拟链路的方法和装置

    公开(公告)号:US07212526B2

    公开(公告)日:2007-05-01

    申请号:US10052684

    申请日:2002-01-18

    申请人: Tatsuo Kanetake

    发明人: Tatsuo Kanetake

    IPC分类号: H04L12/50

    摘要: A method for managing virtual links within a multiple protocol label switched network is provided. A virtual link which includes a set of links between two devices is regarded as a single entity by a control component of a label switching router. Each packet to be transported on the virtual link is labeled based on its assigned forwarding equivalence class. A specific label is bound to a corresponding forwarding equivalence class. Such packets can be forwarded onto any one of the links within the virtual link. To load balance the various links within the virtual link, different selected hash functions are used at selected times to apportion the packets. depending on the load conditions.

    摘要翻译: 提供了一种用于管理多协议标签交换网络内的虚拟链路的方法。 包括两个设备之间的一组链路的虚拟链路被标签交换路由器的控制组件视为单个实体。 基于其分配的转发等价类,将在虚拟链路上传输的每个分组被标记。 特定的标签绑定到相应的转发等价类。 这样的分组可以被转发到虚拟链路中的任何一个链路上。 为了平衡虚拟链路中的各种链路,在选定的时间使用不同的所选哈希函数来分配分组。 取决于负载条件。