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公开(公告)号：US10211922B2
公开(公告)日：2019-02-19
申请号：US15431113
申请日：2017-02-13
摘要： Systems and Methods for reducing distortion due to bursts of upstream transmission in an HFC CATV network. In some preferred systems, the functionality of an Optical Network Unit (ONU) may occur within a node or amplifier along a direction upstream from a subscriber's home.
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公开(公告)号：US09065964B1
公开(公告)日：2015-06-23
申请号：US12857929
申请日：2010-08-17
CPC分类号： H04N7/102 , H04B10/25751 , H04N7/22 , H04N21/61
摘要： A multi-wavelength CATV transmission system includes transmitters adapted to emit carrier wavelengths on a 12.5 GHz+/−20% ITU grid with a minimum spacing between carriers and/or carriers and their beat product groups of 37.5 GHz+/−20%.
摘要翻译： 多波长CATV传输系统包括适用于在12.5GHz +/- 20％ITU网格上发射载波波长的发射机，载波和/或载波之间的最小间隔以及它们的频率产生组37.5GHz +/- 20％。
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公开(公告)号：US08503056B2
公开(公告)日：2013-08-06
申请号：US13097987
申请日：2011-04-29
CPC分类号： G02F1/0123 , H04B10/50575
摘要： Methods and apparatuses for controlling a bias point voltage for an external optical modulator are provided. A control loop is used to adjust a bias signal applied to an external modulator by determining unwanted signals at a predetermined frequency received by an optical receiver of the control loop and accounting for these unwanted signals when determining the bias point voltage.
摘要翻译： 提供了用于控制外部光调制器的偏置点电压的方法和装置。 控制回路用于通过确定由控制回路的光接收器接收的预定频率的不需要的信号来调整施加到外部调制器的偏置信号，并在确定偏置点电压时考虑这些不需要的信号。
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4.发明授权公开(公告)号：US06574389B1
公开(公告)日：2003-06-03
申请号：US09343909
申请日：1999-06-30
IPC分类号： G02B628
CPC分类号： H04B10/58 , H04B10/2507 , H04B10/504 , H04B10/506
摘要： An in-line pre-compensation circuit distorts an electronic information signal prior to using the signal to modulate a laser beam in order to compensate for distortions resulting from transmitting the resulting optical signal through an optical fiber. The pre-compensation circuit is dynamically adjustable for different lengths of optical fiber for simple installation and maintenance of the system. The adjustment can be made from a front panel of a laser transmitter during operation. Even though the optical signal is more distorted at the output of the laser transmitter, the optical signal that arrives at the receiver is less distorted.
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公开(公告)号：US20110267670A1
公开(公告)日：2011-11-03
申请号：US13097987
申请日：2011-04-29
IPC分类号： G02F1/01
CPC分类号： G02F1/0123 , H04B10/50575
摘要： Methods and apparatuses for controlling a bias point voltage for an external optical modulator are provided. A control loop is used to adjust a bias signal applied to an external modulator by determining unwanted signals at a predetermined frequency received by an optical receiver of the control loop and accounting for these unwanted signals when determining the bias point voltage.
摘要翻译： 提供了用于控制外部光调制器的偏置点电压的方法和装置。 控制回路用于通过确定由控制回路的光接收器接收的预定频率的不需要的信号来调整施加到外部调制器的偏置信号，并在确定偏置点电压时考虑这些不需要的信号。
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6.发明授权Optical communication with predistortion to compensate for odd order distortion in modulation and travel 有权具有预失真的光通信，以补偿调制和行程中的奇数阶失真公开(公告)号：US06687432B2
公开(公告)日：2004-02-03
申请号：US10114641
申请日：2002-04-02
IPC分类号： G02B628
CPC分类号： H04B10/58 , H04B10/2507 , H04B10/504 , H04B10/506
摘要： An in-line pre-compensation circuit distorts an electronic information signal prior to using the signal to modulate a laser beam in order to compensate for distortions resulting from transmitting the resulting optical signal through an optical fiber. The pre-compensation circuit is dynamically adjustable for different lengths of optical fiber for simple installation and maintenance of the system. The adjustment can be made from a front panel of a laser transmitter during operation. Even though the optical signal is more distorted at the output of the laser transmitter, the optical signal that arrives at the receiver is less distorted.
摘要翻译： 在线预补偿电路在使用信号调制激光束之前扭曲电子信息信号，以补偿由于通过光纤传输所得到的光信号而导致的失真。 对于不同长度的光纤，预补偿电路是可动态调整的，用于系统的简单安装和维护。 可以在操作期间从激光发射器的前面板进行调整。 即使光信号在激光发射机的输出处更加失真，到达接收机的光信号也较少失真。
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公开(公告)号：US20170302378A1
公开(公告)日：2017-10-19
申请号：US15431113
申请日：2017-02-13
IPC分类号： H04B10/2575 , H04N5/38 , H04N7/22
CPC分类号： H04B10/25751 , H04H20/69 , H04H20/78 , H04L12/2856 , H04L12/2885 , H04N7/22 , H04Q11/0067
摘要： Systems and Methods for reducing distortion due to bursts of upstream transmission in an HFC CATV network. In some preferred systems, the functionality of an Optical Network Unit (ONU) may occur within a node or amplifier along a direction upstream from a subscriber's home.
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公开(公告)号：US06583906B1
公开(公告)日：2003-06-24
申请号：US09343913
申请日：1999-06-30
IPC分类号： H04B1000
CPC分类号： H04B10/504 , H04B10/2507 , H04B10/58
摘要： An in-line pre-shaper for a laser transmitter distorts an electronic information signal to compensate for distortions resulting from the optical information signal provided by the laser transmitter, being transmitted through an optical cable, as well as, compensating for distortions resulting from using the electronic information signal to modulate the laser beam produced by the laser transmitter to provide the optical information signal. The pre-compensation reduces both second order and third order distortion of the optical signal for the combination of the laser and the optical cable. Even though the optical signal is more distorted at the output of the laser transmitter, the optical signal that arrives at the receiver is less distorted.
摘要翻译： 用于激光发射器的在线预成形器扭曲电子信息信号以补偿由激光发射机提供的光信息信号产生的失真，通过光缆传输，以及补偿由于使用 电子信息信号来调制由激光发射器产生的激光束以提供光信息信号。 预补偿减少了用于激光和光缆的组合的光信号的二阶和三阶失真。 即使光信号在激光发射器的输出处更加失真，到达接收机的光信号也较少失真。
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公开(公告)号：US09584074B2
公开(公告)日：2017-02-28
申请号：US12371356
申请日：2009-02-13
CPC分类号： H03F3/082 , H03F2200/534 , H03F2200/537 , H03F2200/541 , H04B10/697
摘要： An optical receiver includes closed-loop composite second order (CSO) distortion correction logic. An optical communication system includes a transmitter comprising open-loop composite second order (CSO) distortion correction logic, and a receiver comprising closed-loop composite second order (CSO) distortion correction logic.
摘要翻译： 光接收机包括闭环复合二阶（CSO）失真校正逻辑。 光通信系统包括包括开环复合二阶（CSO）失真校正逻辑的发射机和包括闭环复合二阶（CSO）失真校正逻辑的接收机。
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10.发明授权Broadband linearizer with combined second and third order generation with adjustable tilt 有权宽带线性化，具有可调倾斜的二次和三阶组合公开(公告)号：US08547174B1
公开(公告)日：2013-10-01
申请号：US13361154
申请日：2012-01-30
IPC分类号： H03F1/26
摘要： Systems and methods can provide an improved broadband linearizer that includes a distortion generator with a bypass path for generating both composite triple beat (CTB) and composite second order (CSO) distortions suitable for linearizing a laser. The linearized laser can be suitable for injection into a communications network such as, for example, a hybrid fiber coaxial (HFC) network, among others.
摘要翻译： 系统和方法可以提供一种改进的宽带线性化器，其包括具有用于产生适于线性化激光器的复合三重拍（CTB）和复合二阶（CSO）失真的旁路路径的失真发生器。 线性激光器可适用于诸如混合光纤同轴（HFC）网络等通信网络的注入。
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