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1. 发明申请

US20090274471A1 METHOD AND APPARATUS FOR CONTROLLING THE OPTICAL OUTPUT POWER FROM A BURST MODE LASER 有权
标题翻译：用于控制来自BURST模式激光器的光输出功率的方法和装置
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。

2. 发明授权

US09479255B2 Method and apparatus for controlling the optical output power from a burst mode laser 有权
标题翻译：用于从突发模式激光器控制光输出功率的方法和装置
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。

3. 发明申请

US20090310961A1 METHOD AND APPARATUS FOR CALIBRATING BURST MODE LASER TRANSMITTERS 有权
标题翻译：用于校准BURST模式激光发射机的方法和装置
公开(公告)号：US20090310961A1
公开(公告)日：2009-12-17
申请号：US12138600
申请日：2008-06-13
申请人： David B. Bowler , James M. Aufiero , Francis J. Calabresi , Christopher J. Pekalsky , Jason G. Luk
发明人： David B. Bowler , James M. Aufiero , Francis J. Calabresi , Christopher J. Pekalsky , Jason G. Luk
IPC分类号： H04B10/08 , H04B10/00 , H04B17/00
CPC分类号： H04B10/40 , H04B10/0799
摘要： A method is provided to calibrate a monitor photodiode that measures the optical output power generated by an optoelectronic transceiver module that includes a burst mode laser diode. The method includes disabling the power control loop that controls an average optical output power generated by the laser diode during a laser burst. A series of logic zero signals is applied to a data input of the transceiver module and the logic zero level of the optical signal generated by the burst mode laser diode while applying the series of logic zero signals is measured. The logic zero bias level applied to the laser diode is adjusted until the measured logic zero level of the optical signal reaches a first desired value. While maintaining the optical signal at the first desired value, a first value of a current generated by the monitor photodiode in response to optical energy received from a back facet of the laser diode is stored. The first value of the current represents the calibrated value of the monitor current that will be measured when the laser generates a proper logic zero optical signal.
摘要翻译：提供了一种校准监测光电二极管的方法，该监测光电二极管测量由包括突发模式激光二极管的光电收发器模块产生的光输出功率。该方法包括禁用在激光脉冲串期间控制由激光二极管产生的平均光输出功率的功率控制回路。一系列逻辑零信号被施加到收发器模块的数据输入，并且测量由脉冲串模式激光二极管产生的逻辑零电平，同时施加一系列逻辑零信号。调整施加到激光二极管的逻辑零偏置电平，直到光信号的测量逻辑零电平达到第一所需值。在将光信号保持在第一所需值的同时，存储响应于从激光二极管的后面接收的光能而由监控光电二极管产生的电流的第一值。电流的第一个值表示当激光器产生适当的逻辑零光信号时将测量的监视电流的校准值。

4. 发明授权

US08139957B2 High sensitivity optical receiver employing a high gain amplifier and an equalizing circuit 有权
标题翻译：采用高增益放大器和均衡电路的高灵敏度光接收机
公开(公告)号：US08139957B2
公开(公告)日：2012-03-20
申请号：US12145239
申请日：2008-06-24
申请人： David B. Bowler , Francis J. Calabresi , Jason G. Luk
发明人： David B. Bowler , Francis J. Calabresi , Jason G. Luk
IPC分类号： H04B10/06
CPC分类号： H03F3/08 , H03F1/48
摘要： An optical receiver includes a light receiving element for converting an optical signal to an electrical signal having a first bandwidth and an amplifier for amplifying the electrical signal. The amplifier has a first gain response that yields a second bandwidth that is less than the first bandwidth. The optical receiver also includes an equalizing circuit operationally coupled to the amplifier. The equalizing circuit has a second gain response that compensates for the first gain response of the amplifier so that a substantially constant net gain is imparted by the amplifier and the equalizing circuit to the electrical signal over the first bandwidth.
摘要翻译：光接收机包括用于将光信号转换为具有第一带宽的电信号的光接收元件和用于放大电信号的放大器。放大器具有第一增益响应，其产生小于第一带宽的第二带宽。光接收器还包括可操作地耦合到放大器的均衡电路。均衡电路具有补偿放大器的第一增益响应的第二增益响应，使得放大器和均衡电路在第一带宽上对电信号赋予基本恒定的净增益。

5. 发明申请

US20090315626A1 High Sensitivity Optical Receiver Employing a High Gain Amplifier and an Equalizing Circuit 有权
标题翻译：采用高增益放大器和均衡电路的高灵敏度光接收机
公开(公告)号：US20090315626A1
公开(公告)日：2009-12-24
申请号：US12145239
申请日：2008-06-24
申请人： David B. Bowler , Francis J. Calabresi , Jason G. Luk
发明人： David B. Bowler , Francis J. Calabresi , Jason G. Luk
IPC分类号： H03F3/04
CPC分类号： H03F3/08 , H03F1/48
摘要： An optical receiver includes a light receiving element for converting an optical signal to an electrical signal having a first bandwidth and an amplifier for amplifying the electrical signal. The amplifier has a first gain response that yields a second bandwidth that is less than the first bandwidth. The optical receiver also includes an equalizing circuit operationally coupled to the amplifier. The equalizing circuit has a second gain response that compensates for the first gain response of the amplifier so that a substantially constant net gain is imparted by the amplifier and the equalizing circuit to the electrical signal over the first bandwidth.
摘要翻译：光接收机包括用于将光信号转换为具有第一带宽的电信号的光接收元件和用于放大电信号的放大器。放大器具有第一增益响应，其产生小于第一带宽的第二带宽。光接收器还包括可操作地耦合到放大器的均衡电路。均衡电路具有补偿放大器的第一增益响应的第二增益响应，使得放大器和均衡电路在第一带宽上对电信号赋予基本恒定的净增益。

6. 发明授权

US10341038B2 Multiplex conversion for a passive optical network 有权
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.

7. 发明授权

US09154851B2 Tunable RF return path filter with automatic channel plan detection 有权
标题翻译：可调谐射频返回路径滤波器，具有自动信道计划检测功能
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。

8. 发明授权

US09003460B2 Network monitoring with estimation of network path to network element location 有权
标题翻译：网络监控网络路径估计网元位置
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。

9. 发明申请

US20130290783A1 Estimating a Severity Level of a Network Fault 有权
标题翻译：估计网络故障的严重性级别
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。

10. 发明授权

US07031357B2 High speed switching driver 失效
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.

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