公开(公告)号：US09479255B2

公开(公告)日：2016-10-25

申请号：US12112569

申请日：2008-04-30

申请人： David B. Bowler ,  James M. Aufiero ,  Francis J. Calabresi ,  Christopher J. Pekalsky

发明人： David B. Bowler ,  James M. Aufiero ,  Francis J. Calabresi ,  Christopher J. Pekalsky

IPC分类号： H04B10/27 ,  H04B10/564 ,  H04J3/16

CPC分类号： H04B10/27 ,  H04B10/564 ,  H04J3/1694

摘要： An optical network terminal is provided for use in a passive optical network (PON). The optical network terminal includes a data port for receiving data packets from an external device and a processor for converting the data packets to data link frames. In addition, the optical network terminal includes a memory configured to store a time division multiplexing scheme identifying a time slot assigned to each of a plurality of network nodes in the PON for transmission of upstream optical signals. An optical transceiver is provided for converting the data link frames to upstream optical signals and transmitting the optical signals on an upstream TDMA (time division, multiple access) channel to an Optical Line Terminal (OLT). The optical transceiver includes a burst mode laser diode for generating the optical signals and a burst mode laser driver for biasing the laser diode with a bias signal and a modulation bias signal. The laser driver includes a dual closed loop feedback control circuit. The dual closed loop feedback control circuit is configured to measure and adjust a logic zero output power level from the laser diode during a time slot identified from the time division multiplexing scheme stored in the memory.

摘要翻译： 提供一种用于无源光网络（PON）的光网络终端。 光网络终端包括用于从外部设备接收数据分组的数据端口和用于将数据分组转换成数据链路帧的处理器。 此外，光网络终端包括：存储器，被配置为存储标识分配给PON中的多个网络节点中的每一个的时隙的时分复用方案，用于上行光信号的传输。 提供了一种光收发器，用于将数据链路帧转换为上行光信号，并将上行TDMA（时分多址）信道上的光信号发送到光线路终端（OLT）。 光收发器包括用于产生光信号的突发模式激光二极管和用偏置信号和调制偏置信号偏置激光二极管的脉冲串模式激光驱动器。 激光驱动器包括双闭环反馈控制电路。 双闭环反馈控制电路被配置为在从存储在存储器中的时分复用方案识别的时隙期间，测量并调整来自激光二极管的逻辑零输出功率电平。

公开(公告)号：US20130125182A1

公开(公告)日：2013-05-16

申请号：US13293541

申请日：2011-11-10

申请人： David B. Bowler ,  John Holobinko

发明人： David B. Bowler ,  John Holobinko

IPC分类号： H04N7/173

CPC分类号： H04N21/6168 ,  H04H60/43 ,  H04H60/97 ,  H04L12/2801 ,  H04L27/0006 ,  H04N7/104 ,  H04N7/173 ,  H04N21/2408 ,  H04N21/437 ,  H04N21/44245

摘要： A method and computing device that provides a tunable RF filter for a two-way communication system. The method receives a downstream video signal, and filters the downstream video signal into at least one downstream bandwidth band, each downstream bandwidth band related to desired upstream/downstream bandwidth splits. The method performs an energy detection on each downstream bandwidth band, and determines a lowest frequency of said at least one downstream bandwidth band that contains downstream video content. The method sets a diplex filter upstream/downstream frequency cutoff to a maximum upstream bandwidth that does not conflict with the lowest frequency of said at least one downstream bandwidth band that contains downstream video content.

摘要翻译： 一种为双向通信系统提供可调谐RF滤波器的方法和计算设备。 该方法接收下行视频信号，并且将下游视频信号滤波成至少一个下行带宽带，每个下行带宽带与期望的上行/下行带宽分离相关。 该方法对每个下行带宽频带执行能量检测，并且确定包含下游视频内容的所述至少一个下行带宽带的最低频率。 该方法将上行/下行频率截止的双工滤波器设置为不与包含下游视频内容的所述至少一个下行带宽频带的最低频率冲突的最大上行带宽。

公开(公告)号：US06963696B1

公开(公告)日：2005-11-08

申请号：US09845243

申请日：2001-04-30

申请人： David B. Bowler ,  Colby Dill, III ,  Barry D. Colella

发明人： David B. Bowler ,  Colby Dill, III ,  Barry D. Colella

IPC分类号： H04B10/06 ,  H04B10/158

CPC分类号： H04B10/66

摘要： An apparatus and method is disclosed for receiving packets having a wide dynamic range of power levels over a shared medium in a communications system. The receiver responds to a packet with a different power level within an inter-packet time and maintains a constant logic level for a long string of ‘ones’ or ‘zeros’ within a packet. An AC-coupled pre-amplifier provides a voltage signal having a slowly decaying power level for a long string of ‘ones’ or ‘zeros’ within the packet. A differential amplifier with hysteresis, ignores the slowly decaying power level of a long string of ‘ones’ or ‘zeros’ within the packet and does not overwrite the power level of the long string until it detects the end of the string.

摘要翻译： 公开了一种用于在通信系统中通过共享介质接收具有宽动态范围的功率电平的分组的装置和方法。 接收机在分组间时间内对具有不同功率电平的分组进行响应，并为分组内的长串“1”或“零”维持恒定的逻辑电平。 AC耦合前置放大器为分组内的长串“1”或“零”提供具有缓慢衰减功率电平的电压信号。 具有迟滞的差分放大器忽略了数据包中长串“1”或“零”长度缓慢衰减的功率电平，并且不会覆盖长字符串的功率电平，直到它检测到字符串的结尾。

公开(公告)号：US06420928B1

公开(公告)日：2002-07-16

申请号：US09845263

申请日：2001-04-30

申请人： David B. Bowler ,  Colby Dill, III ,  Barry D. Colella

发明人： David B. Bowler ,  Colby Dill, III ,  Barry D. Colella

IPC分类号： H03F345

CPC分类号： H03F3/087

摘要： An AC-coupled pre-amplifier is provided for amplifying a signal received in a packet transmitted in burst mode. The pre-amplifier provides a fast time constant for a driven edge of a received signal and a slower time constant for a undriven edge of the received signal. The decay of the undriven edge is faster than the inter-packet time between two received packets. The dual response times, allows for the inter-packet time to be less than the longest string of constant data received in a packet.

摘要翻译： 提供了一种AC耦合前置放大器，用于放大在突发模式下发送的分组中接收的信号。 前置放大器为接收信号的从动边提供快速时间常数，并且对于接收信号的未驱动边沿提供较慢的时间常数。 未驱动边的衰减比两个接收到的分组之间的分组间时间更快。 双响应时间允许分组间时间小于在分组中接收的最长的恒定数据串。

公开(公告)号：US10341038B2

公开(公告)日：2019-07-02

申请号：US13314136

申请日：2011-12-07

申请人： David B. Bowler ,  Xinfa Ma

发明人： David B. Bowler ,  Xinfa Ma

IPC分类号： H04J14/02

摘要： A passive optical network system having a node that is optically coupled to optical line terminals (OLTs), and that is optically coupled to optical network units (ONUs). The node includes at least one fiber link module (FLM), each FLM including an upstream multiplex conversion device (MCD), and a downstream MCD. The upstream MCD receives an upstream optical signal from the ONUs, converts the upstream optical signal to an upstream electrical signal, and transmits a regenerated upstream optical signal to the OLTs. The downstream MCD receives a downstream optical signal from the OLTs, converts the downstream optical signal to a downstream electrical signal, and transmits a regenerated downstream optical signal to the ONUs.

公开(公告)号：US09154851B2

公开(公告)日：2015-10-06

申请号：US13293541

申请日：2011-11-10

申请人： David B. Bowler ,  John Holobinko

发明人： David B. Bowler ,  John Holobinko

IPC分类号： H04N7/173 ,  H04N21/61 ,  H04H60/43 ,  H04H60/97 ,  H04L27/00 ,  H04N7/10 ,  H04N21/437 ,  H04N21/442 ,  H04L12/28 ,  H04N21/24

CPC分类号： H04N21/6168 ,  H04H60/43 ,  H04H60/97 ,  H04L12/2801 ,  H04L27/0006 ,  H04N7/104 ,  H04N7/173 ,  H04N21/2408 ,  H04N21/437 ,  H04N21/44245

摘要： A method and computing device that provides a tunable RF filter for a two-way communication system. The method receives a downstream video signal, and filters the downstream video signal into at least one downstream bandwidth band, each downstream bandwidth band related to desired upstream/downstream bandwidth splits. The method performs an energy detection on each downstream bandwidth band, and determines a lowest frequency of said at least one downstream bandwidth band that contains downstream video content. The method sets a diplex filter upstream/downstream frequency cutoff to a maximum upstream bandwidth that does not conflict with the lowest frequency of said at least one downstream bandwidth band that contains downstream video content.

摘要翻译： 一种为双向通信系统提供可调谐RF滤波器的方法和计算设备。 该方法接收下行视频信号，并且将下游视频信号滤波成至少一个下行带宽带，每个下行带宽带与期望的上行/下行带宽分离相关。 该方法对每个下行带宽频带执行能量检测，并且确定包含下游视频内容的所述至少一个下行带宽带的最低频率。 该方法将上行/下行频率截止的双工滤波器设置为不与包含下游视频内容的所述至少一个下行带宽频带的最低频率冲突的最大上行带宽。

公开(公告)号：US09003460B2

公开(公告)日：2015-04-07

申请号：US13458368

申请日：2012-04-27

申请人： Brian M. Basile ,  David B. Bowler ,  David Dankulich ,  Mohammad Jalaluddin Riaz

发明人： Brian M. Basile ,  David B. Bowler ,  David Dankulich ,  Mohammad Jalaluddin Riaz

IPC分类号： H04J3/14 ,  H04Q3/00 ,  H04N17/00 ,  H04N21/61

CPC分类号： H04N17/00 ,  H04L41/12 ,  H04L41/22 ,  H04N17/004 ,  H04N21/6168

摘要： A method of mapping a network path in which a geographic path of cables of a network between a geographic location of a network component and a geographic location of a terminal network element is estimated electronically using Keyhole Markup Language (KML) data. A geographically accurate street map is populated with the geographic location of the network component, the geographic location of the terminal network element, and the estimated geographic path. The map is capable of being displayed with the use of geospatial software implementing KML encoding. A signal processing electronic device for populating a display of an interactive graphical user interface with network path mapping information and a non-transitory computer readable storage medium having computer program instructions stored thereon that, when executed by a processor, cause the processor to perform the above referenced operations are also provided.

摘要翻译： 一种网络路径的映射方法，其中网络组件的地理位置与终端网络元件的地理位置之间的网络的电缆的地理路径使用键孔标记语言（KML）数据进行电子估计。 地理上准确的街道地图填充有网络组件的地理位置，终端网络元件的地理位置和估计的地理路径。 该地图能够使用实现KML编码的地理空间软件进行显示。 一种信号处理电子设备，用于填充具有网络路径映射信息的交互式图形用户界面的显示器，以及具有存储在其上的计算机程序指令的非暂时性计算机可读存储介质，当由处理器执行时，使处理器执行上述操作 还提供了参考操作。

公开(公告)号：US20130290783A1

公开(公告)日：2013-10-31

申请号：US13458472

申请日：2012-04-27

申请人： David B. Bowler ,  Brian M. Basile ,  Clarke V. Greene ,  Xiang He

发明人： David B. Bowler ,  Brian M. Basile ,  Clarke V. Greene ,  Xiang He

IPC分类号： G06F11/30

CPC分类号： H04L41/0609 ,  H04L41/0681 ,  H04L41/12 ,  H04L41/22 ,  H04L43/0823

摘要： A method of estimating a level of severity of a network fault is provided. Performance parameters are monitored on upstream and downstream links to terminal network elements on a network to detect potential network faults. An alarm is raised with respect to a potential network fault automatically if at least one of the performance parameters as monitored crosses a preset threshold. After an alarm is raised, a level of severity is assigned to the alarm based on pre and post forward error correction (FEC) bit error rates (BER). In addition, the total number of terminal network elements that are impacted by the network fault is estimated and, when multiple alarms are raised of an equal level of severity, a higher priority is placed upon an alarm that affects service to a greatest number of terminal network elements.

摘要翻译： 提供了一种估计网络故障严重程度的方法。 在网络上的终端网络元件的上游和下游链路上监控性能参数，以检测潜在的网络故障。 如果所监视的性能参数中的至少一个与预设阈值相交，就会自动发出关于潜在网络故障的警报。 警报发生后，基于前置和前向纠错（FEC）误码率（BER），将警报级别分配给警报。 另外，估计受网络故障影响的终端网络元件总数，当多个告警提升到相同的严重级别时，优先级高于影响最大数量终端的服务的告警 网络元素。

公开(公告)号：US20090274471A1

公开(公告)日：2009-11-05

申请号：US12112569

申请日：2008-04-30

申请人： David B. Bowler ,  James M. Aufiero ,  Francis J. Calabresi ,  Christopher J. Pekalsky

发明人： David B. Bowler ,  James M. Aufiero ,  Francis J. Calabresi ,  Christopher J. Pekalsky

IPC分类号： H04B10/04

CPC分类号： H04B10/27 ,  H04B10/564 ,  H04J3/1694

摘要： An optical network terminal is provided for use in a passive optical network (PON). The optical network terminal includes a data port for receiving data packets from an external device and a processor for converting the data packets to data link frames. In addition, the optical network terminal includes a memory configured to store a time division multiplexing scheme identifying a time slot assigned to each of a plurality of network nodes in the PON for transmission of upstream optical signals. An optical transceiver is provided for converting the data link frames to upstream optical signals and transmitting the optical signals on an upstream TDMA (time division, multiple access) channel to an Optical Line Terminal (OLT). The optical transceiver includes a burst mode laser diode for generating the optical signals and a burst mode laser driver for biasing the laser diode with a bias signal and a modulation bias signal. The laser driver includes a dual closed loop feedback control circuit. The dual closed loop feedback control circuit is configured to measure and adjust a logic zero output power level from the laser diode during a time slot identified from the time division multiplexing scheme stored in the memory.

摘要翻译： 提供一种用于无源光网络（PON）的光网络终端。 光网络终端包括用于从外部设备接收数据分组的数据端口和用于将数据分组转换成数据链路帧的处理器。 此外，光网络终端包括：存储器，被配置为存储标识分配给PON中的多个网络节点中的每一个的时隙的时分复用方案，用于上行光信号的传输。 提供了一种光收发器，用于将数据链路帧转换为上行光信号，并将上行TDMA（时分多址）信道上的光信号发送到光线路终端（OLT）。 光收发器包括用于产生光信号的突发模式激光二极管和用偏置信号和调制偏置信号偏置激光二极管的脉冲串模式激光驱动器。 激光驱动器包括双闭环反馈控制电路。 双闭环反馈控制电路被配置为在从存储在存储器中的时分复用方案识别的时隙期间，测量并调整来自激光二极管的逻辑零输出功率电平。

公开(公告)号：US07031357B2

公开(公告)日：2006-04-18

申请号：US10704348

申请日：2003-11-07

申请人： David B. Bowler ,  Barry D. Colella ,  Colby Dill, III ,  Bruce C. Pratt

发明人： David B. Bowler ,  Barry D. Colella ,  Colby Dill, III ,  Bruce C. Pratt

IPC分类号： H01S3/00

CPC分类号： H04B10/504 ,  H01S5/042 ,  H01S5/0427

摘要： The present invention is generally directed towards a system and method for providing a high speed switching driver to transmit data information. A first current is switched through a diode or shunted through an alternate path to selectively bias the diode. A second current can also be selectively switched through the diode to modulate a light energy output transmitted from the diode. Based on this configuration, fast bias-switching for generating a modulated laser diode output can be achieved by selectively switching the bias current through the diode or alternate path. Consequently, a solid state device can be controlled to transmit data information after a relatively minimal setup time delay to bias the diode.