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1. 发明申请

US20110235646A1 METHOD AND APPARATUS FOR DETERMINING PROPAGATION DELAY IN A NETWORK 有权
标题翻译：用于确定网络中传播延迟的方法和装置
公开(公告)号：US20110235646A1
公开(公告)日：2011-09-29
申请号：US12732063
申请日：2010-03-25
申请人： Vinod Narippatta , Edward E. Sprague , Ting-Kuang Chiang , Chung Kuang Chin
发明人： Vinod Narippatta , Edward E. Sprague , Ting-Kuang Chiang , Chung Kuang Chin
IPC分类号： H04L12/56
CPC分类号： H04L43/0852
摘要： A propagation delay in the transmission of a frame from an initiator node to a peer node is determined by initially identifying a frame number and byte offset of a first incoming frame from the peer node at a time when the initiator node outputs a portion of a transmitted frame. The portion of the transmitted frame may be the first byte of a sub-frame within the transmitted frame. At the peer node, the frame number and byte offset of a second frame to be supplied to the initiator node is identified at a later time when the frame portion transmitted by the initiator node is received by the peer node, and such information is transmitted to the initiator node. Thus, since the frames output and received by the initiator node are typically of fixed duration, the frame number and byte offset of the incoming frame represent the time when the initiator node outputs the frame portion (a transmit time). In addition, the frame number and byte offset of the second frame represents the time at which the frame portion is received by the peer node (a receive time). Accordingly, by comparing the frame numbers and byte offsets of the first and second frames received from the peer node, a difference between transmit and receive times or propagation delay can be obtained.
摘要翻译：通过在发起者节点输出发送的一部分的时间，首先识别来自对等节点的第一输入帧的帧号和字节偏移来确定帧从发起者节点传输到对等节点的传播延迟帧。发送帧的部分可以是发送帧内的子帧的第一个字节。在对等节点，由发起方节点发送的帧部分由对端节点接收到的时候，识别要提供给发起方节点的第二帧的帧号和字节偏移，并将这些信息发送到启动器节点。因此，由于由发起者节点输出和接收的帧通常是固定持续时间，所以入局帧的帧号和字节偏移表示发起者节点输出帧部分的时间（发送时间）。此外，第二帧的帧号和字节偏移表示对等节点接收帧部分的时间（接收时间）。因此，通过比较从对等节点接收到的第一和第二帧的帧号和字节偏移，可以获得发射和接收时间之间的差异或传播延迟。

2. 发明授权

US07885492B2 Transmitter photonic integrated circuit (TxPIC) chips 有权
标题翻译：发射机光子集成电路（TxPIC）芯片
公开(公告)号：US07885492B2
公开(公告)日：2011-02-08
申请号：US10317935
申请日：2002-12-11
申请人： David F. Welch , Vincent G. Dominic , Fred A. Kish, Jr. , Mark J. Missey , Radhakrishnan L. Nagarajan , Atul Mathur , Frank H. Peters , Robert B. Taylor , Matthew L. Mitchell , Alan C. Nilsson , Stephen G. Grubb , Richard P. Schneider , Charles H. Joyner , Ting-Kuang Chiang , Marco E. Sosa
发明人： David F. Welch , Vincent G. Dominic , Fred A. Kish, Jr. , Mark J. Missey , Radhakrishnan L. Nagarajan , Atul Mathur , Frank H. Peters , Robert B. Taylor , Matthew L. Mitchell , Alan C. Nilsson , Stephen G. Grubb , Richard P. Schneider , Charles H. Joyner , Ting-Kuang Chiang , Marco E. Sosa
IPC分类号： G02B6/12
CPC分类号： G02B6/12011 , B82Y20/00 , G01R31/31728 , G01R31/318511 , G02B6/12004 , G02B6/12007 , G02B6/12019 , G02B6/12021 , G02B6/12023 , G02B6/12026 , G02B6/12028 , G02B6/12033 , G02B6/131 , G02B6/136 , G02B6/4204 , G02F1/01725 , G02F2001/0175 , G02F2001/01758 , G02F2203/69 , H01L31/125 , H01S5/0014 , H01S5/0085 , H01S5/02248 , H01S5/026 , H01S5/0262 , H01S5/0264 , H01S5/0265 , H01S5/0268 , H01S5/06256 , H01S5/06258 , H01S5/0683 , H01S5/06832 , H01S5/12 , H01S5/1228 , H01S5/2077 , H01S5/22 , H01S5/3408 , H01S5/4031 , H01S5/4087 , H01S5/50 , H04B10/2914 , H04B10/50 , H04J14/02 , H04J14/0246 , H04J14/025 , H04J14/0258 , H04J14/0265 , H04J14/0276 , H04J14/0282
摘要： A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other modulated sources and a wavelength selective combiner having an input optically coupled to received all the signal outputs from the modulated sources and provide a combined output signal on an output waveguide from the chip. The modulated sources, combiner and output waveguide are all integrated on the same chip.
摘要翻译：一种包括调制源阵列的光子集成电路（PIC）芯片，每个调制源提供在不同于其它调制源的信道波长的信道波长处的调制信号输出，以及具有光耦合到接收到的所有信号输出的输入的波长选择性组合器并从芯片提供输出波导上的组合输出信号。调制源，组合器和输出波导均集成在同一芯片上。

3. 发明授权

US07546001B2 Monolithic photonic integrated circuit (PIC) with forward error correction (FEC) 有权
标题翻译：具有前向纠错（FEC）的单片光子集成电路（PIC）
公开(公告)号：US07546001B2
公开(公告)日：2009-06-09
申请号：US11735462
申请日：2007-04-14
申请人： David F. Welch , Radhakrishnan L. Nagarajan , Fred A. Kish, Jr. , Vincent G. Dominic , Ting-Kuang Chiang
发明人： David F. Welch , Radhakrishnan L. Nagarajan , Fred A. Kish, Jr. , Vincent G. Dominic , Ting-Kuang Chiang
IPC分类号： G02B6/12 , G02B6/28 , H04B14/00 , H04B14/02
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： Monolithic photonic integrated circuits (PICs) utilize forward error correction (FEC) joint encoder or plural encoders or a joint decoder or plural decoders.
摘要翻译：单片光子集成电路（PIC）利用前向纠错（FEC）联合编码器或多个编码器或联合解码器或多个解码器。

4. 发明申请

US20080131118A1 Configurable Multi-Rate Optical Network Port and Processing Modules 有权
标题翻译：可配置的多速率光网络端口和处理模块
公开(公告)号：US20080131118A1
公开(公告)日：2008-06-05
申请号：US11858102
申请日：2007-09-19
申请人： Ting-Kuang Chiang
发明人： Ting-Kuang Chiang
IPC分类号： H04J14/00
CPC分类号： H04Q11/0071
摘要： Embodiments of the present invention provide an optical port that can be configured to support either high speed or low speed optical signals. In particular, these embodiments comprise a switch that defines a data-rate dependent path between the front-end optics of a network node and internal processing electronic modules. As a result, either high speed or low speed pluggable adapters may be inserted within a port and supported by the processing electronic modules.
摘要翻译：本发明的实施例提供了一种可被配置为支持高速或低速光信号的光端口。特别地，这些实施例包括一个开关，该开关限定网络节点的前端光学器件与内部处理电子模块之间的数据速率相关路径。因此，可以将高速或低速可插拔适配器插入端口内并由处理电子模块支持。

5. 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.

6. 发明授权

US07224858B2 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：US07224858B2
公开(公告)日：2007-05-29
申请号：US11030466
申请日：2005-01-06
申请人： David F. Welch , Ting-Kuang Chiang , Radhakrishnan L. Nagarajan , Vincent G. Dominic , Fred A. Kish, Jr.
发明人： David F. Welch , Ting-Kuang Chiang , Radhakrishnan L. Nagarajan , Vincent G. Dominic , Fred A. Kish, Jr.
IPC分类号： G02B6/12 , G02B6/28 , G02B6/34 , H04B10/12
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 (RxFIC) comprises a semiconductor monolithic chip having an input to receive from an optical transmissior 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 decorobiner 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 he 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.
摘要翻译：光接收机光子集成电路（RxFIC）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。光学装饰机被集成在芯片中并且光学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复合的单独信道信号。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。

7. 发明授权

US07155078B2 Optical transmission network with transmitter photonic integrated circuit (TxPIC) utilizing an optical service channel (OSC) 有权
标题翻译：具有使用光服务信道（OSC）的发射机光子集成电路（TxPIC）的光传输网络
公开(公告)号：US07155078B2
公开(公告)日：2006-12-26
申请号：US11030762
申请日：2005-01-07
申请人： David F. Welch , Ting-Kuang Chiang , Radhakrishnan L. Nagarajan , Vincent G. Dominic , Fred A. Kish, Jr.
发明人： David F. Welch , Ting-Kuang Chiang , Radhakrishnan L. Nagarajan , Vincent G. Dominic , Fred A. Kish, Jr.
IPC分类号： G02B6/12 , G02B6/28 , H04B10/04 , H04B10/12
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 transmitter photonic integrated circuit (TxPIC) comprises a semiconductor monolithic chip with a plurality of optical signal channels where each channel comprises a modulated signal source. The output from the modulated signal sources are coupled to an input of an integrated optical combiner to form a WDM output signal for transmission off the TxPIC chip to an optical transmission link. An optical service channel (OSC) is also integrated on the TxPIC chip to receive a service signal from the optical receiver source which is also coupled the optical transmission link.
摘要翻译：光发射器光子集成电路（TxPIC）包括具有多个光信号通道的半导体单片芯片，其中每个通道包括调制信号源。来自调制信号源的输出耦合到集成光组合器的输入端以形成用于从TxPIC芯片传输到光传输链路的WDM输出信号。光服务信道（OSC）也被集成在TxPIC芯片上，以从光接收机源接收服务信号，光接收机也耦合光传输链路。

8. 发明授权

US07082253B2 Method of providing wider window margin in an eye diagram of a received signal in a transmission system 有权
标题翻译：在传输系统中的接收信号的眼图中提供更宽的窗口余量的方法
公开(公告)号：US07082253B2
公开(公告)日：2006-07-25
申请号：US11035878
申请日：2005-01-10
申请人： Vincent G. Dominic , Ting-Kuang Chiang
发明人： Vincent G. Dominic , Ting-Kuang Chiang
IPC分类号： G02B6/00 , H04B10/00
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： A wider window margin in an eye diagram for an optical transmission signal is provided for both threshold and phase (timing).
摘要翻译：在光学传输信号的眼图中提供了用于阈值和相位（定时）的更宽的窗口边界。

9. 发明授权

US07050666B2 Optical receiver photonic integrated circuit (RxPIC) system 有权
标题翻译：光接收机光子集成电路（RxPIC）系统
公开(公告)号：US07050666B2
公开(公告)日：2006-05-23
申请号：US11035875
申请日：2005-01-10
申请人： David F. Welch , Vincent G. Dominic , Ting-Kuang Chiang
发明人： David F. Welch , Vincent G. Dominic , Ting-Kuang Chiang
IPC分类号： G02B6/12 , G02B6/122 , H04B10/06
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) system includes a monolithic semiconductor chip having an input to receive a WDM combined channel signal comprising a plurality of optical channel signals of different wavelengths. A chip-integrated decombiner is coupled to the chip input to receive the WDM combined channel signal and separate the same into a plurality of different channel signals having different wavelengths. An array of integrated photodetectors, also integrated on the chip, each receive a separated channel signal and together provide a plurality of electrical signals representative of the optical channel signals. An electronic amplifier receives and amplifies the electrical signals. An electronic dispersion equalization (EDE) circuit is coupled to receive and adjust the amplified electrical signals for timing errors due to imperfect clock recovery of said electrical signals. An clock and data recover (CDR) circuit recovers a signal clock and data signals from the electrical signals.
摘要翻译：光接收器光子集成电路（RxPIC）系统包括具有用于接收包括多个不同波长的光信道信号的WDM组合信道信号的输入的单片半导体芯片。芯片集成解复用器耦合到芯片输入端以接收WDM组合信道信号，并将其分离成具有不同波长的多个不同信道信号。也集成在芯片上的集成光电检测器阵列各自接收分离的通道信号并且一起提供表示光信道信号的多个电信号。电子放大器接收和放大电信号。电子分散均衡（EDE）电路被耦合以接收和调整放大的电信号，用于由于所述电信号的不完美的时钟恢复引起的定时误差。时钟和数据恢复（CDR）电路从电信号中恢复信号时钟和数据信号。

10. 发明申请

US20060008279A1 Pattern-dependent error counts for use in correcting operational parameters in an optical receiver 有权
公开(公告)号：US20060008279A1
公开(公告)日：2006-01-12
申请号：US10888329
申请日：2004-07-09
申请人： Ting-Kuang Chiang , Vincent Dominic , Robert Taylor
发明人： Ting-Kuang Chiang , Vincent Dominic , Robert Taylor
IPC分类号： H04B10/06
CPC分类号： H04B10/6971 , H04L1/20
摘要： An optical transmission network includes an optical transmitter photonic integrated circuit (TxPIC) chip, utilized in an optical transmitter and has a plurality of monolithic modulated sources integrated for multiple signal channels on the same semiconductor chip is provided with channel equalization at the optical receiver side of the network that permits one or more such integrated modulated sources in the TxPIC chip to be out of specification thereby increasing the chip yield and reducing manufacturing costs in the deployment of such TxPIC chips. FEC error counts at the FEC decoder on the optical receiver side of the network includes counters that accumulate a plurality of bit pattern-dependent error counts based on different N-bit patterns in the received data bit stream. The accumulated counts of different N-bit patterns are utilized to provide for corrections to threshold and phase relative to the bit eye pattern as well as provided for weight coefficients for the optical receiver equalization system. The deployment of this type of equalization in a digital OEO REGEN network substantially reduces, if not eliminates, the need for dispersion compensating fiber (DCF) or EDFAs in an optical link of the network and enhances the optical receiver tolerance to chromatic dispersion (CD) so that an increase in chip yield is realized for TxPIC chips not operating with acceptable operational parameters, particularly with a desired frequency chirp parameter relative to at least one of the TxPIC modulated sources.

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