Method for network commissioning and upgrading using amplified spontaneous emission (ASE) sources
    2.
    发明授权
    Method for network commissioning and upgrading using amplified spontaneous emission (ASE) sources 有权
    使用放大自发辐射(ASE)来源进行网络调试和升级的方法

    公开(公告)号:US07652816B2

    公开(公告)日:2010-01-26

    申请号:US11615953

    申请日:2006-12-23

    IPC分类号: H01S4/00 H04B10/12

    CPC分类号: H04B10/275

    摘要: This invention provides a method for commissioning and upgrading an optical ring network using its internal amplifiers as Automatic Spontaneous Emission sources of light that are used in making measurements. A modular segmented approach is adopted and the network is commissioned segment by segment. A flexible method is used for upgrading a commissioned network by adding or deleting a node or changing the internal configuration of a node. The method uses techniques for the correction of the Optical Signal to Noise Ratio induced error as well as the Spectral Filtering Error during the loss computation required for adjusting the gains of the amplifiers at each network node to an appropriate value. Since the method does not require an external laser source that needs to be moved manually from node to node it greatly reduces the commissioning time. Since it uses only the components of the network itself and does not deploy any additional device it also leads to a significant saving in cost.

    摘要翻译: 本发明提供了一种使用其内部放大器调试和升级光环网络的方法,所述放大器是用于进行测量的自动自发发射光源。 采用模块化分段方式,逐段调试网络。 灵活的方法用于通过添加或删除节点或更改节点的内部配置来升级委托网络。 该方法使用用于校正光信噪比诱导误差的技术以及在将每个网络节点处的放大器的增益调整到适当值所需的损耗计算期间的光谱滤波误差。 由于该方法不需要需要从节点手动移动的外部激光源,因此大大减少了调试时间。 由于它仅使用网络组件本身,并且不部署任何其他设备,因此也可大大节省成本。

    Methods and apparatus for detecting a faulty component location along an optical path in an optical network
    3.
    发明授权
    Methods and apparatus for detecting a faulty component location along an optical path in an optical network 有权
    用于检测沿着光网络中的光路的故障部件位置的方法和装置

    公开(公告)号:US07139069B2

    公开(公告)日:2006-11-21

    申请号:US11065098

    申请日:2005-02-25

    IPC分类号: G01N21/00

    CPC分类号: H04B10/077 H04B10/07955

    摘要: A multi-stage method and apparatus for determining a faulty component location along an optical path through an optical fiber in an optical network are disclosed. A total power of the optical fiber, and a total wavelength power as a sum of powers of the individual wavelengths at a plurality of local detection points are measured and compared at the local detection points, followed by determining whether or not a faulty detection point exists along the optical path. If a fault is identified, the method provides a multi-stage fault detection procedure, including measuring a total wavelength power loss between a local detection point and an adjacent detection point, between the local detection point and multiple non-adjacent detection points, and a correlation of the measured total wavelength power losses between the various detection points. A corresponding apparatus for determining the faulty component location in the optical network is also provided.

    摘要翻译: 公开了一种用于通过光网络中的光纤确定沿着光路的故障部件位置的多级方法和装置。 在本地检测点测量光纤的总功率和总波长功率作为多个本地检测点处的各个波长的功率之和,然后确定是否存在故障检测点 沿光路。 如果识别故障,则该方法提供多级故障检测程序,包括测量本地检测点与相邻检测点之间,本地检测点与多个非相邻检测点之间的总波长功率损耗,以及 在各种检测点之间测量的总波长功率损耗的相关性。 还提供了用于确定光网络中的故障组件位置的相应设备。

    Optical ring interconnect
    4.
    发明授权
    Optical ring interconnect 有权
    光环互连

    公开(公告)号:US06912340B2

    公开(公告)日:2005-06-28

    申请号:US10612908

    申请日:2003-07-07

    摘要: Optical interconnects and methods for wavelength management are provided to interconnect optical rings while overcoming color-blocking and allowing for wavelength re-use within optical rings. The optical inter-connects having a wavelength selective element such as a reconfigurable add/drop demultiplexer (ROADM) and a band-modulo demultiplexer having a free spectral range (FSR) combined with a pool of wavelength conversion resources. More flexible interconnect systems can use a photonic cross-connect (PXC) to allow sharing of a pool of wavelength conversion resources among several optical rings.

    摘要翻译: 提供用于波长管理的光学互连和方法来互连光环,同时克服颜色阻挡并允许光环内的波长重新使用。 具有诸如可重配置分插复用器(ROADM)的波长选择元件和具有与波长转换资源池组合的自由光谱范围(FSR)的带模解复用器的光学互连。 更灵活的互连系统可以使用光子交叉连接(PXC)来允许在多个光环之间共享波长转换资源池。

    Noise tone avoidance in optical networks
    5.
    发明授权
    Noise tone avoidance in optical networks 有权
    光网络中的噪声音避免

    公开(公告)号:US07783193B2

    公开(公告)日:2010-08-24

    申请号:US11754341

    申请日:2007-05-28

    IPC分类号: H04B10/08

    摘要: Identification of optical channels in wavelength division multiplex (WDM) optical networks may be confounded by unwanted noise tones interfering with pilot/dither tones used for identifying optical channels. The invention describes a method of selecting pilot/dither tones that are selectively restricted to avoid allocating dither/pilot tone frequencies that appear as noise tones along the path of an optical channel in the optical network.

    摘要翻译: 在波分多路复用(WDM)光网络中的光信道的识别可能会受到干扰用于识别光信道的导频/抖动音调的不利噪声音调的混淆。 本发明描述了一种选择限制的导频/抖动音调的方法,以避免分配出沿着光网络中的光信道路径出现的噪声音调的抖动/导频音频率。

    Protection system and method for resilient packet ring (RPR) interconnection
    6.
    发明授权
    Protection system and method for resilient packet ring (RPR) interconnection 有权
    弹性分组环(RPR)互连的保护系统和方法

    公开(公告)号:US07274656B2

    公开(公告)日:2007-09-25

    申请号:US10191548

    申请日:2002-07-10

    IPC分类号: G01R31/08

    CPC分类号: H04J3/085 H04L45/00 H04L45/22

    摘要: A failure protection between interconnected adjacent Resilient Packet Rings (RPRs) in a multiple RPR network is provided. Two paths, a regular message path and a protection path, are provided between two adjacent RPRs. The regular path is used for routing inter-ring messages when no failure has occurred on the path. Messages are rerouted through the protection path when a failure occurs on the regular path. Each of these paths has two RPR interface nodes (one for each RPR) that are connected to an interconnection device (a layer 2 bridge or a layer-3 router) through interconnection links. Procedures for detecting failures and generating notifications for message rerouting and fault reports are executed at the interconnection devices. The procedures use periodic keep alive messages for diagnosing network segment and interconnection device failures. The fault detection and message rerouting are accomplished in less than 50 ms.

    摘要翻译: 提供了多RPR网络中相互连接的相邻弹性分组环(RPR)之间的故障保护。 在两个相邻RPR之间提供两条路径,一条常规消息路径和一条保护路径。 常规路径用于在路径上没有发生故障时路由环回消息。 当常规路径发生故障时,消息将通过保护路径重新路由。 这些路径中的每一个具有通过互连链路连接到互连设备(第二层桥接器或第三层路由器)的两个RPR接口节点(每个RPR一个)。 在互连设备上执行用于检测故障并产生消息重新路由和故障报告的通知的过程。 该过程使用定期保持活动消息来诊断网段和互连设备故障。 故障检测和消息重新路由在不到50ms的时间内完成。

    ENHANCING THE PERFORMANCE OF NEAR-TO-EYE VISION SYSTEMS

    公开(公告)号:US20220121280A1

    公开(公告)日:2022-04-21

    申请号:US17485718

    申请日:2021-09-27

    IPC分类号: G06F3/01 G02B27/01 G02B27/00

    摘要: The majority of applications for head mounted display (HMD) users, irrespective of whether they are for short-term, long-term, low vision, augmented reality, etc. yield a conflicting set of tradeoffs between user comfort and minimal fatigue and strain during use, ease of attachment, minimizing intrusiveness and aesthetics which must be concurrently balanced with and are often in conflict with providing an optical vision system that provides the user with a wide field of view and high image resolution whilst also offering a large exit pupil for eye placement with sufficient eye clearance. Further, individual users' needs vary as do their needs with the general task at-hand, visual focus, and various regions-of-interest within their field of view. To address these issues, it is necessary to provide a high performance optical system, eyepiece design, and system features which overcome these limitations.

    Enhancing the performance of near-to-eye vision systems

    公开(公告)号:US11132055B2

    公开(公告)日:2021-09-28

    申请号:US16207660

    申请日:2018-12-03

    摘要: The majority of applications for head mounted display (HMD) users, irrespective of whether they are for short-term, long-term, low vision, augmented reality, etc. yield a conflicting set of tradeoffs between user comfort and minimal fatigue and strain during use, ease of attachment, minimizing intrusiveness and aesthetics which must be concurrently balanced with and are often in conflict with providing an optical vision system that provides the user with a wide field of view and high image resolution whilst also offering a large exit pupil for eye placement with sufficient eye clearance. Further, individual users' needs vary as do their needs with the general task at-hand, visual focus, and various regions-of-interest within their field of view. To address these issues, it is necessary to provide a high performance optical system, eyepiece design, and system features which overcome these limitations.

    ENHANCING THE PERFORMANCE OF NEAR-TO-EYE VISION SYSTEMS

    公开(公告)号:US20190179409A1

    公开(公告)日:2019-06-13

    申请号:US16207660

    申请日:2018-12-03

    IPC分类号: G06F3/01 G02B27/01 G02B5/04

    摘要: The majority of applications for head mounted display (HMD) users, irrespective of whether they are for short-term, long-term, low vision, augmented reality, etc. yield a conflicting set of tradeoffs between user comfort and minimal fatigue and strain during use, ease of attachment, minimizing intrusiveness and aesthetics which must be concurrently balanced with and are often in conflict with providing an optical vision system that provides the user with a wide field of view and high image resolution whilst also offering a large exit pupil for eye placement with sufficient eye clearance. Further, individual users' needs vary as do their needs with the general task at-hand, visual focus, and various regions-of-interest within their field of view. To address these issues, it is necessary to provide a high performance optical system, eyepiece design, and system features which overcome these limitations.

    NOISE TONE AVOIDANCE IN OPTICAL NETWORKS
    10.
    发明申请
    NOISE TONE AVOIDANCE IN OPTICAL NETWORKS 有权
    光网络噪音消除

    公开(公告)号:US20070280700A1

    公开(公告)日:2007-12-06

    申请号:US11754341

    申请日:2007-05-28

    IPC分类号: H04B10/04

    摘要: Identification of optical channels in wavelength division multiplex (WDM) optical networks may be confounded by unwanted noise tones interfering with pilot/dither tones used for identifying optical channels. The invention describes a method of selecting pilot/dither tones that are selectively restricted to avoid allocating dither/pilot tone frequencies that appear as noise tones along the path of an optical channel in the optical network.

    摘要翻译: 在波分多路复用(WDM)光网络中的光信道的识别可能会受到干扰用于识别光信道的导频/抖动音调的不利噪声音调的混淆。 本发明描述了一种选择限制的导频/抖动音调的方法,以避免分配出沿着光网络中的光信道路径出现的噪声音调的抖动/导频音频率。