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公开(公告)号：US11336367B1
公开(公告)日：2022-05-17
申请号：US17460437
申请日：2021-08-30
IPC分类号： H04B10/075 , H04B10/2507
摘要： A method performed at a transmitter comprises generating a set of digital signals representing a constellation point, each dimension of the point being uniquely represented by m bits, where mϵ{1, 2, 3}; applying a linear polyphase filter to a digital signal of the set, the linear polyphase filter pre-compensating for a linear transfer function of an electro-optic path of the digital signal and generating a first filtered signal having a roll-off factor α, where α is a positive real number satisfying α≤1; applying a nonlinear polyphase filter to the digital signal, in parallel to applying the linear polyphase filter to the digital signal, the nonlinear polyphase filter generating a second filtered signal representing nonlinear noise in the electro-optic path; calculating a pre-compensated digital signal from a difference between the first and second filtered signals; and transmitting an optical signal based on the pre-compensated digital signal.
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2.发明申请COHERENT PROBE AND OPTICAL SERVICE CHANNEL SYSTEMS AND METHODS FOR OPTICAL NETWORKS 有权光网络的相关探测和光通信系统及方法公开(公告)号：US20130236169A1
公开(公告)日：2013-09-12
申请号：US13872550
申请日：2013-04-29
申请人： Jamie Gaudette , David Weldon Boertjes , Michael Y. Frankel , Loudon T. Blair , Christian Bourget , Lyndon Y. Ong
发明人： Jamie Gaudette , David Weldon Boertjes , Michael Y. Frankel , Loudon T. Blair , Christian Bourget , Lyndon Y. Ong
IPC分类号： H04B10/079
CPC分类号： H04B10/0795 , H04B10/073 , H04B10/0793 , H04J14/0257 , H04J14/0267 , H04J14/0268 , H04J14/0269 , H04J14/0275
摘要： The present disclosure provides dynamic performance monitoring systems and methods for optical networks to ascertain optical network health in a flexible and accurate manner. The present invention introduces accurate estimations for optical channel performance characteristics based either on existing channels or with a dynamic optical probe configured to measure characteristics on unequipped wavelengths. Advantageously, the dynamic performance monitoring systems and methods introduce the ability to determine physical layer viability in addition to logical layer viability.
摘要翻译： 本公开提供了用于光网络的动态性能监视系统和方法，以灵活和准确的方式确定光网络健康。 本发明基于现有信道或配置成测量未装配波长上的特性的动态光学探针引入对于光通道性能特性的精确估计。 有利地，动态性能监视系统和方法除了逻辑层可行性之外还引入了确定物理层存活能力的能力。
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公开(公告)号：US20110249981A1
公开(公告)日：2011-10-13
申请号：US12758422
申请日：2010-04-12
IPC分类号： H04B10/06
CPC分类号： H04B10/614
摘要： The present disclosure relates to coherent optical receiver systems and methods for determining and correcting for optical angle and magnitude imbalance and for delay imbalance between quadrature paths. The present invention iteratively determines and corrects imbalance error and differential delay entirely in the digital domain (after an analog to digital conversion) in the presence of all the other impairments (polarization mode dispersion, chromatic dispersion, polarization gain imbalance, and polarization delay imbalance) using only the corrupted received signal during normal operation, i.e. without the use of training data. The present invention provides an effective adaptive scheme to drive impairments to zero, without using of any calibration of training, and may be applied during normal operation of the receiver via electrical circuitry or the like.
摘要翻译： 本公开涉及用于确定和校正光学角度和幅度不平衡以及正交路径之间的延迟不平衡的相干光接收机系统和方法。 本发明在存在所有其他损伤（偏振模色散，色散，极化增益不平衡和极化延迟不平衡）的情况下，在数字域（模数转换之后）中全部迭代地确定和校正不平衡误差和差分延迟， 在正常操作期间仅使用损坏的接收信号，即不使用训练数据。 本发明提供了一种有效的自适应方案，以将伤害驱动为零，而不使用任何训练校准，并且可以在接收机的正常操作期间通过电路等施加。
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4.发明申请Method and apparatus for optimizing the transmission of signals over a group of wires 有权用于优化一组电线上的信号传输的方法和装置公开(公告)号：US20080062975A1
公开(公告)日：2008-03-13
申请号：US11517465
申请日：2006-09-08
申请人： Ian Mes , Ian Dublin , Christian Bourget
发明人： Ian Mes , Ian Dublin , Christian Bourget
IPC分类号： H04L12/56
CPC分类号： G06F13/385 , H04M11/062
摘要： A system and method for optimizing the transmission of signals over a group of wires. In a preferred form of the present invention, a multi-wire bus connects a common card to a plurality of line cards. A framing protocol controls transmissions between the common card and the plurality of line cards. The framing protocol includes a frame having a prefix that identifies in which direction a given transmission will occur. The prefix also identifies over which wire or wires a given line card will receive data. Each of the line cards are configured to interpret the prefix so that at any given time data can be transmitted from the common card to one or more of the line cards by either transmission over a single wire or a plurality of wires.
摘要翻译： 一种用于优化一组电线上的信号传输的系统和方法。 在本发明的优选形式中，多线总线将公共卡连接到多个线卡。 成帧协议控制公共卡和多个线卡之间的传输。 成帧协议包括具有前缀的帧，其标识在哪个方向上发生给定的传输。 该前缀还标识给定线卡将接收数据的电线或电线。 每个线路卡被配置为解释前缀，使得在任何给定时间，可以通过单线或多条线路的传输将数据从普通卡发送到一个或多个线路卡。
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5.发明授权公开(公告)号：US06456654B1
公开(公告)日：2002-09-24
申请号：US09218054
申请日：1998-12-22
IPC分类号： H03H730
CPC分类号： H04L25/0212 , H04L27/01 , H04L27/2656 , H04L27/2695 , H04L2025/03414 , H04L2025/03445 , H04L2025/03605 , H04L2025/0377
摘要： A discrete multitone (DMT) receiver has a time domain equalizer (TDEQ) which is trained during initialization using an estimated channel impulse response (CIR). To eliminate wrap-around of the estimated CIR relative to the DMT frame alignment, and to remove leading zeroes, the estimated CIR is circularly advanced relative to the frame alignment for training the TDEQ. In subsequent communications of DMT symbols via the channel and the TDEQ, the equalized samples of the received DMT symbols are buffered to compensate, in a frame alignment of the received DMT symbols, for the advance of the estimated CIR in the initialization process and for a delay in the TDEQ.
摘要翻译： 离散多音（DMT）接收机具有时域均衡器（TDEQ），其在初始化期间使用估计的信道脉冲响应（CIR）进行训练。 为了消除相对于DMT帧对准的估计CIR的环绕，并且为了去除前导零，估计的CIR相对于用于训练TDEQ的帧对齐是循环前进的。 在经由信道和TDEQ的DMT符号的后续通信中，缓冲接收的DMT符号的均衡样本，以便在接收的DMT符号的帧对齐中补偿初始化过程中估计的CIR的提前，并且对于 延迟TDEQ。
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6.发明申请公开(公告)号：US20130287398A1
公开(公告)日：2013-10-31
申请号：US13927901
申请日：2013-06-26
IPC分类号： H04J14/06
CPC分类号： H04J14/06 , H04B10/12 , H04B10/5053 , H04B10/541 , H04B10/548 , H04B10/61 , H04B10/614 , H04B10/6161 , H04B10/6162 , H04B10/64 , H04B10/676
摘要： The present disclosure provides a multi-carrier optical transmitter, receiver, transceiver, and associated methods utilizing offset quadrature amplitude modulation thereby achieving significant increases in spectral efficiency, with negligible sensitivity penalties. In an exemplary embodiment, an optical transmitter includes circuitry configured to generate a plurality of optical subcarriers, a plurality of data signals for each of the plurality of subcarriers, and a plurality of modulator circuits for each of the plurality of subcarriers, wherein each of the plurality of modulator circuits includes circuitry configured to offset an in-phase component from a quadrature component of one of the plurality data signals by one-half baud period.
摘要翻译： 本公开提供了使用偏移正交幅度调制的多载波光发射机，接收机，收发机和相关联的方法，从而实现频谱效率的显着增加，具有可忽略的灵敏度惩罚。 在示例性实施例中，光发射机包括被配置为生成多个光子载波的电路，多个子载波中的每一个的多个数据信号，以及多个子载波中的每一个的多个调制器电路，其中， 多个调制器电路包括经配置以将多个数据信号之一的正交分量偏离半个波特周期的电路。
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公开(公告)号：US08306438B2
公开(公告)日：2012-11-06
申请号：US12758422
申请日：2010-04-12
CPC分类号： H04B10/614
摘要： The present disclosure relates to coherent optical receiver systems and methods for determining and correcting for optical angle and magnitude imbalance and for delay imbalance between quadrature paths. The present invention iteratively determines and corrects imbalance error and differential delay entirely in the digital domain (after an analog to digital conversion) in the presence of all the other impairments (polarization mode dispersion, chromatic dispersion, polarization gain imbalance, and polarization delay imbalance) using only the corrupted received signal during normal operation, i.e. without the use of training data. The present invention provides an effective adaptive scheme to drive impairments to zero, without using of any calibration of training, and may be applied during normal operation of the receiver via electrical circuitry or the like.
摘要翻译： 本公开涉及用于确定和校正光学角度和幅度不平衡以及正交路径之间的延迟不平衡的相干光接收机系统和方法。 本发明在存在所有其他损伤（偏振模色散，色散，极化增益不平衡和极化延迟不平衡）的情况下，在数字域（模数转换之后）中全部迭代地确定和校正不平衡误差和差分延迟， 在正常操作期间仅使用损坏的接收信号，即不使用训练数据。 本发明提供了一种有效的自适应方案，以将伤害驱动为零，而不使用任何训练校准，并且可以在接收机的正常操作期间通过电路等施加。
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8.发明申请公开(公告)号：US20110176815A1
公开(公告)日：2011-07-21
申请号：US12691474
申请日：2010-01-21
CPC分类号： H04J14/06 , H04B10/12 , H04B10/5053 , H04B10/541 , H04B10/548 , H04B10/61 , H04B10/614 , H04B10/6161 , H04B10/6162 , H04B10/64 , H04B10/676
摘要： The present disclosure provides a multi-carrier optical transmitter, receiver, transceiver, and associated methods utilizing offset quadrature amplitude modulation thereby achieving significant increases in spectral efficiency, with negligible sensitivity penalties. In an exemplary embodiment, an optical transmitter includes circuitry configured to generate a plurality of optical subcarriers, a plurality of data signals for each of the plurality of subcarriers, and a plurality of modulator circuits for each of the plurality of subcarriers, wherein each of the plurality of modulator circuits includes circuitry configured to offset an in-phase component from a quadrature component of one of the plurality data signals by one-half baud period.
摘要翻译： 本公开提供了使用偏移正交幅度调制的多载波光发射机，接收机，收发机和相关联的方法，从而实现频谱效率的显着增加，具有可忽略的灵敏度惩罚。 在示例性实施例中，光发射机包括被配置为生成多个光子载波的电路，多个子载波中的每一个的多个数据信号，以及多个子载波中的每一个的多个调制器电路，其中， 多个调制器电路包括经配置以将多个数据信号之一的正交分量偏离半个波特周期的电路。
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9.发明授权Method and apparatus for time-domain equalization in FDM-based discrete multi-tone modems 有权基于FDM的离散多音调制解调器时域均衡的方法和装置公开(公告)号：US06404806B1
公开(公告)日：2002-06-11
申请号：US09223817
申请日：1998-12-31
IPC分类号： H04B138
CPC分类号： H04L25/03012 , H04L2025/03414
摘要： A time domain equalizer for a discrete multi-tone modem that includes an estimation of the contribution of out of band noise and echo to the overall channel impulse response. At start up the modem estimates out of band noise and echo. Using a minimum mean square error analysis, the time domain equalizer taps can be determined, taking into account the estimated out of band contribution. As a result, less complex duplexing filters, and time domain equalizer, are required.
摘要翻译： 用于离散多音调制解调器的时域均衡器，其包括带外噪声和回波对总体信道脉冲响应的贡献的估计。 在启动时，调制解调器估计带外噪声和回波。 使用最小均方误差分析，可以确定时域均衡器抽头，同时考虑到估计的带外贡献。 因此，需要较不复杂的双工滤波器和时域均衡器。
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公开(公告)号：US09515767B2
公开(公告)日：2016-12-06
申请号：US13927901
申请日：2013-06-26
IPC分类号： H04B10/06 , H04B10/00 , H04B10/12 , H04J14/06 , H04B10/50 , H04B10/54 , H04B10/61 , H04B10/64 , H04B10/67 , H04B10/548
CPC分类号： H04J14/06 , H04B10/12 , H04B10/5053 , H04B10/541 , H04B10/548 , H04B10/61 , H04B10/614 , H04B10/6161 , H04B10/6162 , H04B10/64 , H04B10/676
摘要： The present disclosure provides a multi-carrier optical transmitter, receiver, transceiver, and associated methods utilizing offset quadrature amplitude modulation thereby achieving significant increases in spectral efficiency, with negligible sensitivity penalties. In an exemplary embodiment, an optical transmitter includes circuitry configured to generate a plurality of optical subcarriers, a plurality of data signals for each of the plurality of subcarriers, and a plurality of modulator circuits for each of the plurality of subcarriers, wherein each of the plurality of modulator circuits includes circuitry configured to offset an in-phase component from a quadrature component of one of the plurality data signals by one-half baud period.
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