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1. 发明申请

US20080044183A1 OPTICAL TRANSMISSION NETWORK WITH ASYNCHRONOUS MAPPING AND DEMAPPING AND DIGITAL WRAPPER FRAME FOR THE SAME 有权
公开(公告)号：US20080044183A1
公开(公告)日：2008-02-21
申请号：US11876714
申请日：2007-10-22
申请人： Drew Perkins , Ting-Kuang Chiang , Edward Sprague , Daniel Murphy
发明人： Drew Perkins , Ting-Kuang Chiang , Edward Sprague , Daniel Murphy
IPC分类号： H04B10/00
CPC分类号： H04L1/0057 , H04J3/0691 , H04J3/07 , H04J3/1611 , H04J3/1652 , H04J2203/0085
摘要： An optical transmission network is inherently asynchronous due to the utilization of a variable overhead ratio (V-OHR). The network architecture makes extensive use of OEO regeneration, i.e., deals with any electronic reconditioning to correct for transmission impairments, such as, for example, FEC encoding, decoding and re-encoding, signal reshaping, retiming as well as signal regeneration. The optical transmission network includes a plesiochronous clocking system with intermediate nodes designed to operate asynchronously with a single local frequency clock without complicated network synchronization schemes employing high cost clocking devices such as phase locked loop (PLL) control with crystal oscillators and other expensive system components. The asynchronous network operation provides for asynchronous remapping or remapping of any client signal utilizing any type of transmission protocol where the line side rate or frequency is always the same frequency for the payload signal and the local frequency at an intermediate node is set to a local reference clock in accordance with the payload type and its overhead ratio, i.e., the overhead ratio is varied to meet the desired difference between the line rate or frequency and the desired client signal payload rate or frequency for the particular client signal payload type.

2. 发明申请

US20070211742A1 APPLICATION OF HARDWARE-BASED MAILBOXES IN NETWORK TRANSCEIVERS AND DISTRIBUTED APPROACH FOR PREDICTABLE SOFTWARE-BASED PROTECTION SWITCHING 有权
标题翻译：基于硬件的电子邮件在网络收发器中的应用和分布式方法用于可预测的基于软件的保护切换
公开(公告)号：US20070211742A1
公开(公告)日：2007-09-13
申请号：US11669151
申请日：2007-01-30
申请人： Tjandra Trisno , Edward Sprague , Scott Young
发明人： Tjandra Trisno , Edward Sprague , Scott Young
IPC分类号： H04L12/56
CPC分类号： H04Q11/0062 , H04J14/0283 , H04J14/0287 , H04J14/0295 , H04L45/22 , H04L45/28 , H04L45/62 , H04Q2011/0016 , H04Q2011/0081 , H04Q2011/0092
摘要： A line card in a network node having a local memory coupled to a local controller and local logic circuit. The local memory in the line card stores state information for signals processed by the line card itself, as well as state information for signals processed by other line cards. The logic circuit and controller implement a same fault detection and signal processing algorithms as all other line cards in the group, to essentially effectuate a distributed and local hardware based control of automatic protection switching (APS) without interrupting a central processor. The line card also performs error checking and supervisory functions to ensure consistency of state among the line cards.
摘要翻译：网络节点中的线卡，其具有耦合到本地控制器和本地逻辑电路的本地存储器。线路卡中的本地存储器存储由线路卡本身处理的信号的状态信息，以及由其他线路卡处理的信号的状态信息。逻辑电路和控制器实现与组中所有其他线卡相同的故障检测和信号处理算法，从而基本上实现了分布式和本地基于硬件的自动保护切换（APS）控制，而不中断中央处理器。线卡还执行错误检查和监控功能，以确保线路卡之间状态的一致性。

3. 发明申请

US20070002430A1 Automated Optical Link Power Control 有权
标题翻译：自动光链路功率控制
公开(公告)号：US20070002430A1
公开(公告)日：2007-01-04
申请号：US11425944
申请日：2006-06-22
申请人： Matthew Mitchell , Robert Taylor , Edward Sprague
发明人： Matthew Mitchell , Robert Taylor , Edward Sprague
IPC分类号： H01S3/00
CPC分类号： H04B10/296 , H04B10/2935
摘要： A system, apparatus and method are described for controlling the gain across one or more amplifier nodes within an optical span. In one embodiment, a fast local amplifier constant gain control loop is provided that maintains a constant gain across an amplifier node for each of the channels within an optical signal. A slow link level gain setting control loop is provided to set and/or adjust the target gain on the amplifier node(s). A gain adjust sequence is performed by the slow link level gain setting control loop to adjust the target gain(s) in response to various events and mechanisms. A “time of flight” protection method is also provided to ensure consistency between the fast local amplifier gain control loop and the slow link level gain setting control loop.
摘要翻译：描述了用于控制光跨度内的一个或多个放大器节点的增益的系统，装置和方法。在一个实施例中，提供了快速本地放大器恒定增益控制环路，其在光信号内的每个通道的整个放大器节点上保持恒定的增益。提供慢速链路电平增益设置控制环路以设置和/或调整放大器节点上的目标增益。通过慢速链路电平增益设置控制环路执行增益调整序列，以响应于各种事件和机制来调整目标增益。还提供了“飞行时间”保护方法，以确保快速本地放大器增益控制回路与慢速链路电平增益设置控制回路之间的一致性。

4. 发明申请

US20050286521A1 Universal digital framer architecture for transport of client signals of any client payload and format type 有权
公开(公告)号：US20050286521A1
公开(公告)日：2005-12-29
申请号：US11154455
申请日：2005-06-16
申请人： Ting-Kuang Chiang , Drew Perkins , Edward Sprague , Daniel Murphy
发明人： Ting-Kuang Chiang , Drew Perkins , Edward Sprague , Daniel Murphy
IPC分类号： H04J3/08 , H04J3/14 , H04J3/16 , H04L12/28 , H04L12/56
CPC分类号： H04J3/1652 , H04J3/08 , H04J3/14
摘要： Client signals to be transported in a transmission network, particularly an optical transmission network, may have different payload envelope rates and are digitally mapped on the client egress side into first transport frames (also referred to as iDTF frames, or intra-node or internal digital transport frames), at the client side for intra-transport within terminal network elements (NEs) and further digitally mapped into second transport frames (also referred to as DTFs or digital transport frames) for inter-transport across the network or a link which, through byte stuffing carried out in the first transport frames so that they always have the same frame size. As a result, the system of framers provides for a DTF format to always have a uniformly universal frame rate throughout the network supporting any client signal frequency, whether a standard client payload or a proprietary client payload, as long as its rate is below payload envelope rate of the client signal. At the client signal ingress side, the signal are digitally demapped from the second transport frames (DTF format) into the first transport frames where the stuff bytes are removed and accordingly processed at an intermediate node element before further transport, or digitally demapped from the first transport frames (iDTF format) to reproduce or reassemble the client signal or signals comprising the client payload at the client payload envelope rate for reception at the client's equipment. Among various features disclosed, two predominate features are (1) a single channel or network rate for transport of all signals between network elements (NEs) and end terminal network elements and (2) the digitally wrapping of different types of payloads into N client side or first frames using stuff bytes to render each client side frame size equal to a predetermined value. Then the stuffed first frames are wrapped into line side or second frames for transport over the network at the same high speed line rate for all digitally wrapped client signals. The client side framers may be, for example, running at the lowest signal rate encountered, to digitally wrap then into parallel N client signals or digitally wrap a client signal multi-sected into N parts, where these two different client signals have different payload rates.

5. 发明申请

US20080037984A1 OPTICAL TRANSMISSION NETWORK WITH ASYNCHRONOUS MAPPING AND DEMAPPING AND DIGITAL WRAPPER FRAME FOR THE SAME 有权
标题翻译：具有异步映射和解码功能的光传输网络及其数字包装框架
公开(公告)号：US20080037984A1
公开(公告)日：2008-02-14
申请号：US11876727
申请日：2007-10-22
申请人： Drew Perkins , Ting-Kuang Chiang , Edward Sprague , Daniel Murphy
发明人： Drew Perkins , Ting-Kuang Chiang , Edward Sprague , Daniel Murphy
IPC分类号： H04J14/00
CPC分类号： H04L1/0057 , H04J3/0691 , H04J3/07 , H04J3/1611 , H04J3/1652 , H04J2203/0085
摘要： An optical transmission network is inherently asynchronous due to the utilization of a variable overhead ratio (V-OHR). The network architecture makes extensive use of OEO regeneration, i.e., deals with any electronic reconditioning to correct for transmission impairments, such as, for example, FEC encoding, decoding and re-encoding, signal reshaping, retiming as well as signal regeneration. The optical transmission network includes a plesiochronous clocking system with intermediate nodes designed to operate asynchronously with a single local frequency clock without complicated network synchronization schemes employing high cost clocking devices such as phase locked loop (PLL) control with crystal oscillators and other expensive system components. The asynchronous network operation provides for asynchronous remapping or remapping of any client signal utilizing any type of transmission protocol where the line side rate or frequency is always the same frequency for the payload signal and the local frequency at an intermediate node is set to a local reference clock in accordance with the payload type and its overhead ratio, i.e., the overhead ratio is varied to meet the desired difference between the line rate or frequency and the desired client signal payload rate or frequency for the particular client signal payload type.
摘要翻译：由于使用可变开销比（V-OHR），光传输网络固有地是异步的。网络架构广泛使用OEO再生，即处理任何电子修复以校正传输损伤，例如FEC编码，解码和重新编码，信号整形，重新定时以及信号再生。光传输网络包括一个专用时钟系统，其中间节点设计成与单个本地频率时钟异步运行，而无需采用高成本时钟设备（如晶体振荡器和其他昂贵的系统组件的锁相环（PLL））控制）的复杂网络同步方案。异步网络操作提供使用任何类型的传输协议的任何客户端信号的异步重映射或重新映射，其中线路边速率或频率对于有效载荷信号总是相同的频率，并且中间节点处的本地频率被设置为本地参考根据有效载荷类型和其开销比，即，开销比被改变以满足线速率或频率与特定客户端信号有效载荷类型的期望的客户端信号有效载荷速率或频率之间的期望差。

6. 发明授权

US08565610B2 Maintaining correlated virtual data streams through a network 有权
标题翻译：通过网络维护相关的虚拟数据流
公开(公告)号：US08565610B2
公开(公告)日：2013-10-22
申请号：US12141323
申请日：2008-06-18
申请人： Edward Sprague , Charles H. Joyner
发明人： Edward Sprague , Charles H. Joyner
IPC分类号： H04B10/00
CPC分类号： H04Q11/0062 , H04Q2011/0064 , H04Q2011/0086
摘要： Embodiments of the invention are described in which correlated virtual data streams are managed within an optical network connection. In certain embodiments of the invention, a client signal is allocated across a plurality of transport wavelength channels according to various transposition methods. The assignment of portions of the client signal to corresponding wavelengths may depend on various factors including channel utilization within the transport network and skew characteristics between particular wavelengths.
摘要翻译：描述了本发明的实施例，其中在光网络连接内管理相关的虚拟数据流。在本发明的某些实施例中，根据各种转置方法在多个传输波长信道上分配客户端信号。将客户端信号的部分分配给相应的波长可以取决于各种因素，包括传输网络内的信道利用和特定波长之间的偏斜特性。

7. 发明授权

US07672301B2 Distribution stage for enabling efficient expansion of a switching network 有权
标题翻译：用于实现交换网络高效扩展的分发阶段
公开(公告)号：US07672301B2
公开(公告)日：2010-03-02
申请号：US10428048
申请日：2003-05-02
申请人： Daniel E. Klausmeier , Edward Sprague
发明人： Daniel E. Klausmeier , Edward Sprague
IPC分类号： H04Q11/00
CPC分类号： H04Q3/68
摘要： A distribution stage is disclosed comprising a plurality of inputs coupled to a plurality of first stage switching devices, a plurality of outputs coupled to a plurality of second stage switching devices, and a distribution configuration. The distribution configuration is configured to receive a plurality of bandwidth units (BU's) from each first stage switching device, and to distribute at least one BU from each first stage switching device to each second stage switching device, such that each second stage switching device is assured of receiving at least one BU from each first stage switching device. In effect, the distribution stage ensures that each first stage switching device has a logical link to each second stage switching device. In one embodiment, the distribution stage is configured in accordance with a distribution configuration that is static. Because the distribution configuration of the distribution stage is static, it does not add complexity to the overall switching determination of a switching network. Thus, the distribution stage enables the switching network to be expanded without degrading the switching performance of the network.
摘要翻译：公开了一种分配阶段，包括耦合到多个第一级交换设备的多个输入，耦合到多个第二级交换设备的多个输出以及分配配置。分配配置被配置为从每个第一级交换设备接收多个带宽单元（BU），并且将来自每个第一级交换设备的至少一个BU分配给每个第二级交换设备，使得每个第二级交换设备是确保从每个第一级切换装置接收至少一个BU。实际上，分配阶段确保每个第一级交换设备具有到每个第二级交换设备的逻辑链路。在一个实施例中，分配阶段根据静态的分布配置来配置。由于分布阶段的分布配置是静态的，因此交换网络的整体交换确定不会增加复杂性。因此，分发阶段使得能够扩展交换网络，而不降低网络的交换性能。

8. 发明申请

US20090034976A1 Maintaining Correlated Virtual Data Streams Through a Network 有权
标题翻译：通过网络维护相关的虚拟数据流
公开(公告)号：US20090034976A1
公开(公告)日：2009-02-05
申请号：US12141323
申请日：2008-06-18
申请人： Edward Sprague , Charles Joyner
发明人： Edward Sprague , Charles Joyner
IPC分类号： H04J14/02
CPC分类号： H04Q11/0062 , H04Q2011/0064 , H04Q2011/0086
摘要： Embodiments of the invention are described in which correlated virtual data streams are managed within an optical network connection. In certain embodiments of the invention, a client signal is allocated across a plurality of transport wavelength channels according to various transposition methods. The assignment of portions of the client signal to corresponding wavelengths may depend on various factors including channel utilization within the transport network and skew characteristics between particular wavelengths.
摘要翻译：描述了本发明的实施例，其中在光网络连接内管理相关的虚拟数据流。在本发明的某些实施例中，根据各种转置方法在多个传输波长信道上分配客户端信号。将客户端信号的部分分配给相应的波长可以取决于各种因素，包括传输网络内的信道利用和特定波长之间的偏斜特性。

9. 发明申请

US20070009262A1 Modular adaptation and configuration of a nework node architecture 有权
标题翻译：一种nework节点架构的模块化适配和配置
公开(公告)号：US20070009262A1
公开(公告)日：2007-01-11
申请号：US11479778
申请日：2006-06-30
申请人： Drew Perkins , Ting-Kuang Chiang , Marco Sosa , Mark Yin , Edward Sprague
发明人： Drew Perkins , Ting-Kuang Chiang , Marco Sosa , Mark Yin , Edward Sprague
IPC分类号： H04B10/20
CPC分类号： H04J14/0201 , H04J14/0219 , H04L49/40 , H04L49/405 , H04L49/45
摘要： The present invention provides a system, apparatus and method for modularly adapting a network node architecture to function in one of a plurality of potential node types. The architecture includes a configurable switching element, integrated optics, and a plurality of modules that allow a “type” of node to be adapted and configured within the base architecture. The module interfaces may be optical or electrical and be used to construct various different types of nodes including regenerators, add/drop nodes, terminal nodes, and multi-way nodes using the same base architecture.
摘要翻译：本发明提供了一种用于模块化地适应网络节点体系结构以在多个潜在节点类型之一起作用的系统，装置和方法。该架构包括可配置的开关元件，集成光学元件和允许在基础架构内适配和配置节点“类型”的多个模块。模块接口可以是光学的或电的，并且可以用于构造各种不同类型的节点，包括再生器，添加/分出节点，终端节点和使用相同基础架构的多路节点。

10. 发明申请

US20050157713A1 Distribution stage for enabling efficient expansion of a switching network 有权
标题翻译：用于实现交换网络高效扩展的分发阶段
公开(公告)号：US20050157713A1
公开(公告)日：2005-07-21
申请号：US10428048
申请日：2003-05-02
申请人： Daniel Klausmeier , Edward Sprague
发明人： Daniel Klausmeier , Edward Sprague
IPC分类号： H04Q3/68 , H04Q11/00
CPC分类号： H04Q3/68
摘要： A distribution stage is disclosed comprising a plurality of inputs coupled to a plurality of first stage switching devices, a plurality of outputs coupled to a plurality of second stage switching devices, and a distribution configuration. The distribution configuration is configured to receive a plurality of bandwidth units (BU's) from each first stage switching device, and to distribute at least one BU from each first stage switching device to each second stage switching device, such that each second stage switching device is assured of receiving at least one BU from each first stage switching device. In effect, the distribution stage ensures that each first stage switching device has a logical link to each second stage switching device. In one embodiment, the distribution stage is configured in accordance with a distribution configuration that is static. Because the distribution configuration of the distribution stage is static, it does not add complexity to the overall switching determination of a switching network. Thus, the distribution stage enables the switching network to be expanded without degrading the switching performance of the network.
摘要翻译：公开了一种分配阶段，包括耦合到多个第一级交换设备的多个输入，耦合到多个第二级交换设备的多个输出以及分配配置。分配配置被配置为从每个第一级交换设备接收多个带宽单元（BU），并且将来自每个第一级交换设备的至少一个BU分配给每个第二级交换设备，使得每个第二级交换设备是确保从每个第一级切换装置接收至少一个BU。实际上，分配阶段确保每个第一级交换设备具有到每个第二级交换设备的逻辑链路。在一个实施例中，分配阶段根据静态的分布配置来配置。由于分布阶段的分布配置是静态的，因此交换网络的整体交换确定不会增加复杂性。因此，分发阶段使得能够扩展交换网络，而不降低网络的交换性能。

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