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41. 发明申请

US20050135729A1 Optical transmission network with a receiver photonic integrated circuit (RxPIC) utilizing an optical service chanel (OSC) 有权
标题翻译：具有利用光学服务通道（OSC）的接收机光子集成电路（RxPIC）的光传输网络
公开(公告)号：US20050135729A1
公开(公告)日：2005-06-23
申请号：US11030466
申请日：2005-01-06
申请人： David Welch , Radhakrishnan Nagarajan , Fred Kish , Mark Missey , Vincent Dominic , Atul Mathur , Frank Peters , Charles Joyner , Richard Schneider , Ting-Kuang Chiang
发明人： David Welch , Radhakrishnan Nagarajan , Fred Kish , Mark Missey , Vincent Dominic , Atul Mathur , Frank Peters , Charles Joyner , Richard Schneider , Ting-Kuang Chiang
IPC分类号： G02B6/12 , G02B6/34 , G02F1/017 , H01S5/026 , H01S5/0625 , H01S5/0683 , H01S5/12 , H01S5/20 , H01S5/22 , H01S5/34 , H01S5/40 , H01S5/50 , H04B10/12 , H04B10/145 , H04B10/158 , H04B10/17 , H04J14/02
CPC分类号： H04B10/2914 , B82Y20/00 , G02B6/12004 , G02B6/12007 , G02B6/12011 , G02B6/12019 , G02B6/12023 , G02B6/12026 , G02B6/12028 , G02B6/1203 , G02B6/12033 , G02B6/4249 , G02F1/01725 , G02F2001/0175 , G02F2001/01758 , H01S5/026 , H01S5/0264 , H01S5/0265 , H01S5/0268 , H01S5/0425 , H01S5/06256 , H01S5/06258 , H01S5/0683 , H01S5/101 , H01S5/1014 , H01S5/12 , H01S5/1228 , H01S5/183 , H01S5/2077 , H01S5/22 , H01S5/2224 , H01S5/227 , H01S5/3404 , H01S5/3408 , H01S5/34306 , H01S5/4025 , H01S5/4031 , H01S5/4087 , H01S5/50 , H01S5/5072 , H04B10/25 , H04B10/50 , H04B10/675 , H04J14/02
摘要： An optical receiver photonic integrated circuit (RxPIC) comprises a semiconductor monolithic chip having an input to receive from an optical transmission link a combined channel signal originating from an optical transmitter source and comprising a plurality of channel signals having different wavelengths forming a wavelength grid. An optical decombiner is integrated in the chip and optically coupled to the input to receive the multiplexed channel signal and provide a decombined individual channel signal on an output waveguide of a plurality of such output waveguides provided from the optical decombiner. A plurality of photodetectors are also integrated in the chip and each photodetector is optically coupled to one of the output waveguides to receive a decombined channel signal and convert the channel signal to an electrical signal. A controller is coupled to receive a portion of the converted signals to determine at least one performance property of the signals and provide service channel signal as feedback about that property via the semiconductor monolithic chip to the optical transmitter source. The controller is coupled to an integrated optical service channel (OSC) on the chip that has a light source which is modulated by the service channel signal. The light source may be integrated on the chip. The optical service channel (OSC) is coupled as an input to the decombiner for transport off the chip to optical transmitter source. If there is an optical amplifier at the input of the chip, the service channel signai will be amplified by that amplifier. Such an optical amplifier may be an off-chip rare earth doped amplifier or an on-chip semiconductor optical amplifier.
摘要翻译：光接收器光子集成电路（RxPIC）包括半导体单片芯片，其具有从光传输链路接收源自光发射机源的组合信道信号的输入，并且包括具有形成波长网格的不同波长的多个信道信号。光学分解器集成在芯片中并且光耦合到输入端以接收多路复用的信道信号，并且在由光学分解器提供的多个这样的输出波导的输出波导上提供去重组的单独信道信号。多个光电检测器也集成在芯片中，并且每个光电检测器光耦合到输出波导中的一个，以接收解复用通道信号并将通道信号转换为电信号。控制器被耦合以接收转换信号的一部分以确定信号的至少一个性能特性，并且将服务信道信号作为关于经由半导体单芯片到光发射机源的属性的反馈提供。控制器耦合到芯片上的集成光学服务信道（OSC），其具有由服务信道信号调制的光源。光源可以集成在芯片上。光服务信道（OSC）作为输入端耦合到分解器，用于从芯片传输到光发射机源。如果在芯片输入端有一个光放大器，则该放大器将放大服务通道信号。这种光放大器可以是片外稀土掺杂放大器或片上半导体光放大器。

42. 发明授权

US08259703B2 Communication network with skew determination 有权
标题翻译：具有偏差确定的通信网络
公开(公告)号：US08259703B2
公开(公告)日：2012-09-04
申请号：US11856692
申请日：2007-09-17
申请人： Drew D. Perkins , David F. Welch , Ting-Kuang Chiang , Edward E. Sprague , Parthiban Kandappan , Steven G. Grubb , Prasad Paranjape , Biao Lu
发明人： Drew D. Perkins , David F. Welch , Ting-Kuang Chiang , Edward E. Sprague , Parthiban Kandappan , Steven G. Grubb , Prasad Paranjape , Biao Lu
IPC分类号： H04L12/28
CPC分类号： H04J14/02
摘要： Embodiments of the present invention determine skew relative to a plurality of communication paths on a network system. The network is a wavelength division multiplexed optical transport network. The plurality of communication paths involves different signal and path attributes such as a plurality of carrier wavelengths, optical carrier groups, physical communication paths (different nodes, different fibers along a same path, or any combination of the foregoing), or any other differentiating factors between two paths.
摘要翻译：本发明的实施例确定了相对于网络系统上的多个通信路径的偏斜。该网络是波分复用光传输网络。多个通信路径涉及不同的信号和路径属性，例如多个载波波长，光载波组，物理通信路径（不同节点，沿着相同路径的不同光纤，或前述的任何组合）或任何其它微分因素两条路径之间。

43. 发明授权

US08705402B2 Clocking of client signals output from an egress node in a network 有权
标题翻译：从网络中的出口节点输出的客户端信号的时钟
公开(公告)号：US08705402B2
公开(公告)日：2014-04-22
申请号：US12647342
申请日：2009-12-24
申请人： Tulasi Veguru , Gopal Rao , Prasad Paranjape , Ting-Kuang Chiang , Konstantin Saunichev
发明人： Tulasi Veguru , Gopal Rao , Prasad Paranjape , Ting-Kuang Chiang , Konstantin Saunichev
IPC分类号： H04J3/07 , H04L12/50 , G06F15/173
CPC分类号： H04L47/22 , H04L47/365
摘要： Consistent with the present disclosure, client data, which may include multiplexed data sub-streams, is supplied to an ingress node of a network. Each sub-stream typically has a corresponding data rate, i.e., an original data rate, prior to multiplexing. The client data is encapsulated in a plurality of successive frames that are output from the ingress node and propagate, typically through one or more intermediate nodes, to an egress node. At the egress node, data rates associated with the sub-streams included in each frame are determined based on the amount of client data in each frame. The data rates are then averaged over a given number of frames to thereby filter any wander or deviation in the client data rate. Based on the averaged data rate, justification opportunities are added to the client data in each sub-stream, which are then multiplexed into frames that are output from the egress node. By including the justification opportunities, the effective rate of each sub-stream may be set equal to the original data rate when the sub-streams are demultiplexed after being output from the egress node. An advantage of the present disclosure is that the justification opportunities, are not generated based solely on clock signals generated by PLL circuits. As a result, fewer PLL circuits are required, thereby simplifying system design and minimizing power consumption.
摘要翻译：根据本公开，可以将包括多路复用数据子流的客户端数据提供给网络的入口节点。每个子流在复用之前通常具有对应的数据速率，即原始数据速率。客户端数据被封装在从入口节点输出并且通常通过一个或多个中间节点传播到出口节点的多个连续帧中。在出口节点处，基于每帧中的客户端数据的量来确定与包括在每个帧中的子流相关联的数据速率。然后在给定数量的帧上对数据速率进行平均，从而过滤客户端数据速率中的任何漂移或偏差。基于平均数据速率，将每个子流中的客户端数据加入调整机会，然后将其合并到从出口节点输出的帧中。通过包括调整机会，在从出口节点输出之后子流被解复用时，每个子流的有效速率可被设置为等于原始数据速率。本公开的优点在于，调整机会不是仅仅由PLL电路产生的时钟信号产生。因此，需要更少的PLL电路，从而简化系统设计并最大限度地降低功耗。

44. 发明申请

US20110004700A1 PROVIDING ACCESS TO CLIENT OVERHEAD WHILE TRANSPARENTLY TRANSMITTING THE CLIENT SIGNAL 有权
标题翻译：在客户端发送信息时提供客户端访问权限
公开(公告)号：US20110004700A1
公开(公告)日：2011-01-06
申请号：US12496246
申请日：2009-07-01
申请人： Edward E. Sprague , Radhakrishna Valiveti , Jan Bialkowski , Ting-Kuang Chiang , Biao Lu , Rajan Rao , Parthiban Kandappan
发明人： Edward E. Sprague , Radhakrishna Valiveti , Jan Bialkowski , Ting-Kuang Chiang , Biao Lu , Rajan Rao , Parthiban Kandappan
IPC分类号： G06F15/16
CPC分类号： H04J3/1652 , H04J2203/0046 , H04J2203/0057
摘要： A method includes receiving client data; extracting overhead data from the client data; mapping the client data into one or more frames, where each of the one or more frames has a frame payload section and a frame overhead section, where the client data is mapped into the frame payload section of the one or more frames; inserting the overhead data into the frame overhead section of the one or more frames; transporting the one or more frames across a network; extracting the overhead data from the frame overhead section of the one or more frames; recovering the client data from the one or more frames; inserting the extracted overhead data into the recovered client data to create modified client data; and outputting the modified client data.
摘要翻译：一种方法包括接收客户数据; 从客户端数据提取开销数据; 将客户端数据映射到一个或多个帧，其中一个或多个帧中的每一个具有帧有效载荷部分和帧开销部分，其中客户端数据被映射到一个或多个帧的帧有效载荷部分; 将开销数据插入到一个或多个帧的帧开销部分中; 通过网络传送一个或多个帧; 从所述一个或多个帧的帧开销部分提取开销数据; 从一个或多个帧恢复客户端数据; 将提取的开销数据插入到恢复的客户端数据中以创建修改的客户端数据; 并输出修改的客户端数据。

45. 发明授权

US07684399B2 Optical transmission network with asynchronous mapping and demapping and digital wrapper frame for the same 有权
标题翻译：光传输网络与异步映射和解映射以及数字包装框架相同
公开(公告)号：US07684399B2
公开(公告)日：2010-03-23
申请号：US11876727
申请日：2007-10-22
申请人： Drew D. Perkins , Ting-Kuang Chiang , Edward E. Sprague , Daniel P. Murphy
发明人： Drew D. Perkins , Ting-Kuang Chiang , Edward E. Sprague , Daniel P. Murphy
IPC分类号： H04L12/28
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。

46. 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。

47. 发明申请

US20070001722A1 Recovery of Client Clock Without Jitter 有权
标题翻译：恢复客户端时钟无抖动
公开(公告)号：US20070001722A1
公开(公告)日：2007-01-04
申请号：US11426481
申请日：2006-06-26
申请人： Scott Young , Ting-Kuang Chiang
发明人： Scott Young , Ting-Kuang Chiang
IPC分类号： H03L7/06
CPC分类号： H03L7/081 , H03L7/185 , H03L2207/12 , H04J3/076
摘要： The present invention provides a system, apparatus and method for recovering a client signal clock. The present invention is able to more effectively remove jitter within a clock signal by providing a phase shifting element in the feedback of a PLL system to compensate for sudden changes in an input reference clock. The PLL system provides flexible clock recovery so that it can accommodate various payload types because it extracts a client clock signal independent of a corresponding justification count number.
摘要翻译：本发明提供一种用于恢复客户端信号时钟的系统，装置和方法。通过在PLL系统的反馈中提供相移元件来补偿输入参考时钟的突然变化，本发明能够更有效地消除时钟信号内的抖动。 PLL系统提供灵活的时钟恢复，使得它可以适应各种有效载荷类型，因为它提取独立于对应对齐计数的客户端时钟信号。

48. 发明申请

US20050169640A1 Optical communication module having at least one monolithic semiconductor photonic integrated circuit chip 有权
标题翻译：具有至少一个单片半导体光子集成电路芯片的光通信模块
公开(公告)号：US20050169640A1
公开(公告)日：2005-08-04
申请号：US11079955
申请日：2005-03-15
申请人： Stephen Grubb , Matthew Mitchell , Robert Taylor , Ting-Kuang Chiang , Vincent Dominic
发明人： Stephen Grubb , Matthew Mitchell , Robert Taylor , Ting-Kuang Chiang , Vincent Dominic
IPC分类号： G02B6/12 , G02B6/34 , H01S3/067 , H01S5/026 , H01S5/12 , H01S5/40 , H04B10/12 , H04B10/04
CPC分类号： G02B6/12019 , G02B6/12004 , H01S3/06754 , H01S5/0265 , H01S5/0268 , H01S5/12 , H01S5/4012 , H01S5/4031 , H04B10/25
摘要： An optical communication module comprises at least one monolithic semiconductor transmitter photonic integrated circuit chip having a plurality of optical signal channels approximating wavelengths on a standardized grid. Each of said channels comprises a laser source optically coupled to an electro-optic modulator. The outputs of the electro-optic modulators are coupled to inputs of an integrated optical combiner for combining the inputs to form a combined signal output from the chip. A booster optical amplifier is optically coupled to receive and amplify the combined signal output from the chip.
摘要翻译：光通信模块包括至少一个单片半导体发射器光子集成电路芯片，其具有接近标准化网格上的波长的多个光信号通道。每个所述通道包括光耦合到电光调制器的激光源。电光调制器的输出耦合到集成光组合器的输入，用于组合输入以形成从芯片输出的组合信号。增强型光放大器被光学耦合以接收和放大从芯片输出的组合信号。

49. 发明授权

US07873133B2 Recovery of client clock without jitter 有权
标题翻译：恢复客户端时钟无抖动
公开(公告)号：US07873133B2
公开(公告)日：2011-01-18
申请号：US11426481
申请日：2006-06-26
申请人： Scott A. Young , Ting-Kuang Chiang
发明人： Scott A. Young , Ting-Kuang Chiang
IPC分类号： H03D3/24
CPC分类号： H03L7/081 , H03L7/185 , H03L2207/12 , H04J3/076
摘要： The present invention provides a system, apparatus and method for recovering a client signal clock. The present invention is able to more effectively remove jitter within a clock signal by providing a phase shifting element in the feedback of a PLL system to compensate for sudden changes in an input reference clock. The PLL system provides flexible clock recovery so that it can accommodate various payload types because it extracts a client clock signal independent of a corresponding justification count number.
摘要翻译：本发明提供一种用于恢复客户端信号时钟的系统，装置和方法。通过在PLL系统的反馈中提供相移元件来补偿输入参考时钟的突然变化，本发明能够更有效地消除时钟信号内的抖动。 PLL系统提供灵活的时钟恢复，使得它可以适应各种有效载荷类型，因为它提取独立于对应对齐计数的客户端时钟信号。

50. 发明申请

US20100254705A1 HIGH-CAPACITY SWITCH 有权
标题翻译：高容量开关
公开(公告)号：US20100254705A1
公开(公告)日：2010-10-07
申请号：US12418283
申请日：2009-04-03
申请人： Drew D. Perkins , Ting-Kuang Chiang , Curtis Villamizar
发明人： Drew D. Perkins , Ting-Kuang Chiang , Curtis Villamizar
IPC分类号： H04J14/02
CPC分类号： H04Q11/0005 , H04J14/0204 , H04J14/0205 , H04J14/0212 , H04J14/0221 , H04Q2011/0013 , H04Q2011/0015 , H04Q2011/0016 , H04Q2011/0032
摘要： Consistent with the present disclosure, an optical switch is provided that switches multiple wavelength division multiplexed (WDM) optical signals. Each of the WDM signals includes optical signals having the same wavelengths. The WDM signals are supplied to optical splitters, which supply power split portions of the WDM signals to corresponding optical gates. Groups of the optical gates are associated with a corresponding switching block, which may include a cyclical arrayed waveguide grating (AWG), and the optical gates within each group are controlled so that one gate passes a received WDM signal portion while the remaining optical gates in the group are in a blocking configuration. As a result, the WDM portion received by the non-blocking gate is demultiplexed in the switching block and each of the wavelength components that constitute the selected WDM portion are supplied to corresponding outputs within the switching block. In a later time interval, a different optical gate may be rendered non-blocking so that a different WDM signal portion, supplied from a different optical splitter and carrying different information over the same wavelengths, may be input to the switching block. Thus, by controlling the optical gates, different WDM signal portions may be switched to, and thus demultiplexed by, a particular switching block. In addition, portions of the same WDM signal may be selectively supplied to different AWGs by appropriately control of the optical gates.
摘要翻译：根据本公开，提供了一种切换多个波分复用（WDM）光信号的光开关。每个WDM信号包括具有相同波长的光信号。 WDM信号被提供给光分路器，其将WDM信号的功率分割部分提供给相应的光栅。光栅的组与相应的切换块相关联，其可以包括周期性阵列波导光栅（AWG），并且控制每个组内的光栅，使得一个栅极通过接收的WDM信号部分，而其余的光栅在该组处于阻塞配置。结果，由非阻塞栅极接收的WDM部分在切换块中解复用，并且构成所选WDM部分的每个波长分量被提供给切换块内的相应输出。在稍后的时间间隔中，不同的光栅可以被渲染为非阻塞，使得可以将不同的光分路器提供的不同的WDM信号部分在相同的波长上传送不同的信息，可以被输入到切换块。因此，通过控制光栅，可以将不同的WDM信号部分切换到特定切换块并由其解复用。此外，通过适当地控制光栅，可以将相同WDM信号的部分选择性地提供给不同的AWG。

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