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    • 1. 发明授权
    • Dual optical channel monitor assembly and associated methods of manufacture and use
    • 双通道监视器组合及相关联的制造和使用方法
    • US07415174B2
    • 2008-08-19
    • US11407164
    • 2006-04-19
    • Brandon C. Collings
    • Brandon C. Collings
    • G02B6/12
    • G02B6/12019
    • An optical channel monitor assembly for simultaneously measuring the optical power levels of multiple series of dense wavelength division multiplexed channels or the like traveling on separate optical fibers in an optical communications system includes an arrayed waveguide grating router having a first side and a second side, the first side including a first plurality of ports and the second side including a second plurality of ports, the first plurality of ports in optical communication with the second plurality of ports, wherein the first side includes a first input port for collectively receiving a first series of optical channels, wherein the second side includes a first plurality of output ports for individually delivering the first series of optical channels, wherein the second side includes a second input port for collectively receiving a second series of optical channels, and wherein the first side includes a second plurality of output ports for individually delivering the second series of optical channels.
    • 一种光通道监视器组件,用于同时测量在光通信系统中在单独光纤上行进的多个密集波分复用信道等的光功率电平,包括具有第一侧和第二侧的阵列波导光栅路由器, 第一侧包括第一多个端口,第二侧包括第二多个端口,第一多个端口与第二多个端口光学通信,其中第一侧包括第一输入端口,用于集体接收第一系列 光通道,其中所述第二侧包括用于单独传送所述第一系列光通道的第一多个输出端口,其中所述第二侧包括用于共同接收第二系列光通道的第二输入端口,并且其中所述第一侧面包括: 第二多个输出端口,用于单独地递送所述seco nd系列光通道。
    • 2. 发明授权
    • Saddle pad display system and method
    • 鞍形垫显示系统及方法
    • US07395647B2
    • 2008-07-08
    • US11292924
    • 2005-12-02
    • Martha L. Hense
    • Martha L. Hense
    • B68C1/12
    • B68C1/12
    • A saddle pad display system by which a horse and rider may display an exhibitor number tag, equine jewelry, or the like on a saddle pad. The saddle pad display system is comprised of: a saddle pad, the saddle pad having a left side and a right side and further having an outer pad surface and an inner pad surface; a plurality of display holes cut and sewn into the saddle pad, the depth of the display holes continuing throughout the entire thickness of the saddle pad; a retaining sleeve attached to the inner pad surface and located centrally between a pair of display holes located on each side of the saddle pad; and a display item, the display item having a clip by which the display item may be securely attached to the saddle pad.
    • 马鞍垫显示系统,马和骑手可以在马鞍垫上显示参展商号码标签,马饰品等。 鞍座显示系统包括:鞍座,鞍座垫具有左侧和右侧,并且还具有外垫表面和内垫表面; 多个显示孔被切割并缝合到鞍座中,显示孔的深度在鞍垫的整个厚度上延伸; 固定套,其附接到所述内垫表面并且位于所述鞍垫的每一侧上的一对显示孔之间的中心; 以及显示项目,所述显示项目具有可以将所述显示项目可靠地附接到所述鞍座的剪辑。
    • 3. 发明授权
    • Method and system for DSL power saving
    • DSL节电方法和系统
    • US07369566B2
    • 2008-05-06
    • US10274820
    • 2002-10-18
    • Andrew Deczky
    • Andrew Deczky
    • H04Q11/02H04B1/38
    • H04L5/0046H04L1/0017H04L5/0007H04L5/006H04L5/0064
    • Method and system for reducing power dissipation for data transmission from a transmitter to a receiver in a digital subscriber line (DSL) system when a rate of available data is below a first predetermined data rate for a predetermined length of time. The method includes the following steps. Normal parameters for a normal rate of said data transmission are stored. New parameters for a reduced rate of the data transmission are calculated. Data is transmitted at the reduced rate of the data transmission, wherein the reduced rate requires less power for data transmission. The normal rate of the data transmission is resumed using the normal parameters when the rate of available data rises above a second predetermined data rate.
    • 当可用数据的速率低于预定时间长度的第一预定数据速率时,用于在数字用户线(DSL)系统中减少从发射机到接收机的数据传输的功率耗散的方法和系统。 该方法包括以下步骤。 存储所述数据传输的正常速率的正常参数。 计算数据传输速率降低的新参数。 以数据传输的降低的速率传输数据,其中降低的速率需要较少的数据传输功率。 当可用数据的速率上升到高于第二预定数据速率时,使用正常参数恢复数据传输的正常速率。
    • 5. 发明授权
    • Modular add/drop multiplexer including a wavelength selective switch
    • 模块化分插复用器包括波长选择开关
    • US07499652B2
    • 2009-03-03
    • US11855427
    • 2007-09-14
    • Shan ZhongCharles Haggans
    • Shan ZhongCharles Haggans
    • H04J14/02
    • H04J14/0204H04J14/0205H04J14/0209H04J14/0212H04J14/0213H04J14/0217H04J14/0219H04J14/028H04J14/029H04J14/0291
    • Consistent with the present invention, tunable demultiplexers are provided in WSS-based add/drop multiplexer. The tunable demultiplexers are modular and thus allow the add/drop multiplexer to be readily expandable, and facilitate flexible add/drop capabilities whereby a channel present on any input line to the WSS can be dropped and supplied to one or more desired outputs of the tunable demultiplexer. Similar flexibility can be achieved on the add-side of the WSS. Moreover, the demultiplexers and the WSS are remotely configurable, thus obviating the need to manually disconnect and connect demultiplexers to a router. In a particular embodiment, multicast switches are provided that permit the same channel, for example, to be provided to one or more outputs of the add/drop multiplexer, such that copy of the channel can carry working traffic while the other copy carries protection traffic. As a result, 1+1 and 1:N optical layer protection can be achieved.
    • 根据本发明,在基于WSS的分插复用器中提供可调谐解复用器。 可调谐解复用器是模块化的,因此允许添加/分出复用器容易地扩展,并且促进灵活的添加/删除功能,从而可以将存在于WSS的任何输入线上的信道丢弃并提供给可调谐器的一个或多个期望的输出 解复用器 可以在WSS的附加端实现类似的灵活性。 此外,解复用器和WSS是可远程配置的,因此不需要手动断开并将解复用器连接到路由器。 在特定实施例中,提供允许例如将相同信道提供给分插复用器的一个或多个输出的组播交换机,使得该信道的副本可以承载工作业务,而另一个副本携带保护业务 。 结果,可以实现1 + 1和1:N光学层保护。
    • 6. 发明授权
    • Transparent sub-wavelength network
    • 透明亚波长网络
    • US07443888B2
    • 2008-10-28
    • US10895007
    • 2004-07-20
    • Steven A. Surek
    • Steven A. Surek
    • H04J3/06
    • H04J3/0647H04J3/1611
    • An arrangement that allows transmission of client signals with higher clock fidelity is achieved by developing a phase offset measure at an ingress node, communicating it to the egress node, and recovering the client's clock from the received data and from the received phase-offset information. The ability to recover the client's clock with high fidelity is enhanced by adaptive pointer processing in intermediate nodes and the egress node of the network that the client's signal traverses. The adaptive pointer processing filters incoming pointers from upstream nodes and injects new positive and negative pointer justifications in excess of what is minimally necessary to allow them to be filtered by successive nodes and insure proper transmission over a network that employs a protocol involving framing layer frames embedded in communication layer frames. Illustratively, the network protocol is an extended ITU Recommendation G.709 Digital Wrapper protocol, arranged to employ frames of 15240 columns by four rows.
    • 通过在入口节点处开发相位偏移测量,将其传送到出口节点,以及从接收到的相位偏移信息中恢复客户端的时钟,可以实现更高时钟保真度传输客户端信号的布置。 通过在中间节点和客户端的信号穿过的网络的出口节点上的自适应指针处理来增强以高保真度恢复客户端时钟的能力。 自适应指针处理过滤来自上游节点的传入指针,并且注入新的正和负指针调整,超出最低限度所需要的,以允许它们被连续的节点过滤,并确保通过使用涉及框架层帧嵌入的协议的网络的适当传输 在通信层帧中。 说明性地,网络协议是扩展的ITU推荐G.709数字封装协议,被布置为使用15240列乘以四行的帧。
    • 7. 发明授权
    • Switching algorithm for optical fiber networks
    • 光纤网络的切换算法
    • US07433593B1
    • 2008-10-07
    • US10608528
    • 2003-06-30
    • Jeffrey GullicksenNeena AluriTheodore E. TedijantoWilliam Kish
    • Jeffrey GullicksenNeena AluriTheodore E. TedijantoWilliam Kish
    • H04B10/00H04J14/00
    • H04J14/0291H04B10/032H04J14/0283H04J14/0284
    • A method, system and egress switching node for maintaining a network connection in an optical network reduces the number of spans needed for reestablishing a network connection. The invention learns which channels are used by the network connection and propagates such channel assignment data to the switching nodes for storage therein. When a span failure occurs, a notification is sent to the switching nodes identifying which span has failed. The switch nodes use the notification and channel assignment data to perform protection switching such that the rerouted network connection selects the channel that was used by the network connection on the failed span. Likewise, the egress switching node uses the selected channel to drop the network connection from the protecting fibers. This enables a network connection to travel a shorter distance after a protection switch.
    • 用于维护光网络中的网络连接的方法,系统和出口交换节点减少了重新建立网络连接所需的跨度数量。 本发明学习网络连接使用哪些信道,并将这种信道分配数据传播到交换节点以便存储在其中。 发生跨度故障时,会向交换节点发送一个通知,以确定哪个跨度发生故障。 交换机节点使用通知和信道分配数据进行保护倒换,使得重新路由的网络连接选择故障跨度上由网络连接使用的信道。 类似地,出口交换节点使用所选择的信道从保护光纤中丢弃网络连接。 这使得网络连接能够在保护开关之后行驶较短的距离。
    • 8. 发明授权
    • Reconfigurable wavelength blocking apparatus and optical selector device therefore
    • 因此,可重构波长阻断装置和光选择装置
    • US07424223B1
    • 2008-09-09
    • US10896284
    • 2004-07-22
    • Paul LundquistDenis Zaccarin
    • Paul LundquistDenis Zaccarin
    • H04J14/00G02B6/28
    • H04J14/02G02B6/12021G02B6/353
    • An optical selector device is disclosed that includes a first arrayed waveguide grating (AWG) demultiplexing an input WDM signal and outputting demultiplexed signals on respective outputs; an array of optical shutters optically coupled to the outputs from the first AWG; a second AWG optically coupled to the array of optical shutters, the second AWG multiplexing optical signals output from the array to form a WDM signal; and a common optical shutter optically coupled to either of the first and second AWGs. The common optical shutter has a default state that is substantially opaque to the WDM signal. Additionally, the array of optical shutters may have a default state that is substantially transparent to the demultiplexed signals. A reconfigurable wavelength blocking device incorporating the optical selector device is also disclosed which additionally includes a controller that controls the optical shutter array to selectively block/pass designated wavelength channels or bands.
    • 公开了一种光选择器件,其包括对输入WDM信号进行解复用的第一阵列波导光栅(AWG),并在相应的输出上输出解复用的信号; 与第一AWG的输出光学耦合的光学快门阵列; 第二AWG,其光耦合到所述光学快门阵列,所述第二AWG复用光信号从所述阵列输出以形成WDM信号; 以及光学耦合到第一和第二AWG中的任一个的公共光学快门。 普通的光学快门具有对于WDM信号基本不透明的默认状态。 另外,光学快门阵列可以具有对解复用的信号基本上透明的默认状态。 还公开了并入光选择器装置的可重构波长阻断装置,其另外包括控制器,该控制器控制光闸阵列以选择性地阻挡/通过指定的波长信道或频带。
    • 9. 发明授权
    • Method and apparatus for optical amplifying device gain control with gain threshold
    • 具有增益阈值的光放大器件增益控制方法和装置
    • US07400443B1
    • 2008-07-15
    • US10716609
    • 2003-11-20
    • Balakrishnan SridharJun Bao
    • Balakrishnan SridharJun Bao
    • H04B10/17
    • H04B10/2935H04B10/2931
    • Optical amplifying method and apparatus are proposed. Constant gain amplifiers operate such that the output power of the amplifier generally tracks the input power. However, optical systems are not perfect and the input to the optical amplifier stage includes not only the desired signal, but also includes accumulated effects of the imperfections. The imperfections include losses of the fiber sections, variations in laser powers, and drifts. Thus, simple amplification not only amplifies the desired signal, but also amplifies accumulated imperfections. Such imperfections occur over time and are generally small in magnitude. By operating the amplifier such that amplification of small variations is suppressed while allowing for tracking of large input variations, amplifying the accumulated imperfections is minimized.
    • 提出了光放大方法和装置。 恒定增益放大器工作,使得放大器的输出功率通常跟踪输入功率。 然而,光学系统不是完美的,并且光放大器级的输入不仅包括期望的信号,而且还包括缺陷的累积效应。 缺陷包括光纤段的损耗,激光功率的变化和漂移。 因此,简单的放大不仅放大了期望的信号,而且放大了累积的缺陷。 这种缺陷随着时间的推移而发生,并且通常在数量上是小的。 通过操作放大器,使得抑制小变化的放大,同时允许跟踪大的输入变化,放大积累的缺陷被最小化。