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1. 发明授权

US09191102B2 Systems and methods for reducing thermal tails on optical time domain reflectometer (OTDR) measurements 有权
标题翻译：用于减少光时域反射计（OTDR）测量的热尾的系统和方法
公开(公告)号：US09191102B2
公开(公告)日：2015-11-17
申请号：US13786636
申请日：2013-03-06
申请人： Daniel M. Joffe , Leif J. Sandstrom
发明人： Daniel M. Joffe , Leif J. Sandstrom
IPC分类号： H04B10/08 , H04B17/00 , H04B10/071 , G01M11/00
CPC分类号： H04B10/071 , G01M11/3118 , G01M11/3154
摘要： An optical communication system has a power dissipating element that is thermally coupled to an optical transmitter. The currents supplied to the transmitter and the power dissipating element are controlled such that the sum of such currents is constant. Accordingly, temperature fluctuations in the transmitter due to patterns in the transmitted data are prevented or at least reduced, thereby reducing thermal tails on measurements. In one exemplary embodiment, a light source is used as the power dissipating element, and the output of such light source is beneficially used to probe another optical fiber or to enhance the OTDR performance or analysis.
摘要翻译：光通信系统具有热耦合到光发射机的功率耗散元件。控制提供给发射器和功率耗散元件的电流，使得这些电流之和恒定。因此，防止或至少减少了由于传输数据中的图案而导致的发射机中的温度波动，从而减少了测量时的热尾迹。在一个示例性实施例中，光源被用作功率耗散元件，并且这种光源的输出有利地用于探测另一光纤或增强OTDR性能或分析。

2. 发明授权

US09065588B1 Communications system having remotely managed and configured optical network unit 有权
标题翻译：通信系统具有远程管理和配置的光网络单元
公开(公告)号：US09065588B1
公开(公告)日：2015-06-23
申请号：US12983448
申请日：2011-01-03
申请人： Brian C. Smith , Daniel M. Joffe
发明人： Brian C. Smith , Daniel M. Joffe
IPC分类号： H04L12/56 , H04J14/02 , H04L12/28
CPC分类号： H04J14/0252 , H04L12/2856 , H04L12/2885 , H04L12/2898
摘要： An optical network unit includes a central office interface configured to connect to a central office local loop and customer premises and provide a central office source service. A switch and a switch device is connected to the switch and has at least one service port to provide a local source service. A relay switch is connected to the at least one service port and the central office interface. A processor is connected to the switch and relay switch and configured to receive a command message and in response switch into either the central office interface and provide the central office source service or switch into the service port and provide the local source service.
摘要翻译：光网络单元包括被配置为连接到中心局本地环路和客户驻地并提供中心局源服务的中心局接口。交换机和交换机设备连接到交换机，并具有至少一个服务端口以提供本地源服务。中继交换机连接至至少一个服务端口和中心局接口。处理器连接到交换机和中继交换机，并配置为接收命令消息，并响应切换到中心局接口，并提供中心局源服务或切换到服务端口并提供本地源服务。

3. 发明授权

US08818199B2 Correlation systems and methods with error compensation 有权
标题翻译：相关系统和误差补偿方法
公开(公告)号：US08818199B2
公开(公告)日：2014-08-26
申请号：US13367201
申请日：2012-02-06
申请人： Daniel M. Joffe
发明人： Daniel M. Joffe
IPC分类号： H04B10/00 , H04B10/08
CPC分类号： G01M11/3118 , G01M11/3145
摘要： A correlation system, such as a correlation optical time domain reflectometer (OTDR) system, transmits a correlation sequence, such as an M-sequence, and measures the returns of the correlation sequence over time. The system correlates the transmitted sequence with the returns to provide correlation measurement values that respectively correspond to different distances from the point of transmission. A correlation error compensation element estimates a correlation error floor based on at least one correlation measurement value corresponding to a point along the fiber beyond a finite impulse response (FIR) length from the transmitter. The correlation error compensation element adjusts each correlation measurement value estimate in order to cancel the contribution of the correlation error floor from the measurements to provide compensated measurement values that are substantially free of the effects of the correlation error floor.
摘要翻译：诸如相关光时域反射计（OTDR）系统之类的相关系统传送诸如M序列的相关序列，并测量相关序列随时间的返回。该系统将传输的序列与返回值相关联，以提供分别对应于从传输点开始的不同距离的相关测量值。相关误差补偿元件基于与沿着光纤的点相对应的至少一个相关测量值来估计相关误差底板，超过来自发射机的有限脉冲响应（FIR）长度。相关误差补偿元件调整每个相关测量值估计，以便从测量中消除相关误差底线的贡献，以提供基本上没有相关误差底线的影响的补偿测量值。

4. 发明授权

US08731183B1 System and method for cancelling echo in a communications line 有权
标题翻译：在通信线路中消除回波的系统和方法
公开(公告)号：US08731183B1
公开(公告)日：2014-05-20
申请号：US12758132
申请日：2010-04-12
申请人： Richard L. Goodson , Daniel M. Joffe , Neil M. Jensen , Peter S. Kerr
发明人： Richard L. Goodson , Daniel M. Joffe , Neil M. Jensen , Peter S. Kerr
IPC分类号： H04B3/32 , G10K11/175 , H03G3/00
CPC分类号： H04B3/23
摘要： An echo canceller system includes a first echo canceller having a first voltage divider and an adaptable second voltage divider that is configured to generate a first replica of an echo. A second echo canceller is configured to generate a second replica of an echo and has tap values that are generated in response to an error signal. A controller is coupled to the first and second echo cancellers and includes a selection algorithm that responds to the tap values of the second echo canceller and selects a voltage divider value for the adaptable second voltage divider.
摘要翻译：回声消除器系统包括具有第一分压器的第一回声消除器和被配置为产生回波的第一复制品的适应性第二分压器。第二回波消除器被配置为生成回波的第二副本，并且具有响应于错误信号而产生的抽头值。控制器耦合到第一回波消除器和第二回波消除器，并且包括响应于第二回波消除器的抽头值的选择算法，并且为可适应的第二分压器选择分压器值。

5. 发明授权

US08649149B1 Dual level surge protector circuit for telecommunication line 有权
标题翻译：电讯线路双电平保护电路
公开(公告)号：US08649149B1
公开(公告)日：2014-02-11
申请号：US13041470
申请日：2011-03-07
申请人： Brian C. Smith , Daniel M. Joffe
发明人： Brian C. Smith , Daniel M. Joffe
IPC分类号： H02H1/04
CPC分类号： H02H9/04 , H04M3/18
摘要： In accordance with a non-limiting example, a dual level surge protector adaptively selects the protection level required in response to any expected voltages that will be applied to the tip and ring lines. In one example, the surge protector has a first set value for responding to an applied battery voltage and a second set value for responding to a combination voltage that includes a battery voltage plus a ringing voltage.
摘要翻译：根据非限制性示例，双电平电涌保护器自适应地选择响应于将施加到尖端和环线的任何预期电压所需的保护电平。在一个示例中，浪涌保护器具有用于响应于所施加的电池电压的第一设定值和用于响应包括电池电压加上振铃电压的组合电压的第二设定值。

6. 发明申请

US20130201472A1 SYSTEMS AND METHODS FOR CANCELING ELECTRICAL CROSSTALK FROM MEASUREMENTS OF OPTICAL SIGNALS 有权
标题翻译：从光信号测量中取消电机的系统和方法
公开(公告)号：US20130201472A1
公开(公告)日：2013-08-08
申请号：US13367227
申请日：2012-02-06
申请人： Daniel M. Joffe
发明人： Daniel M. Joffe
IPC分类号： G01N21/00
CPC分类号： G01M11/3118 , G01D5/35354 , G01M11/3145
摘要： An exemplary optical transmission system comprises an optical subassembly (OSA) coupled to an optical receiver via an optical fiber. The OSA comprises a laser diode configured to transmit optical signals across the optical fiber, and the OSA further comprises an avalanche photodiode (APD) configured to receive optical return signals from the optical fiber. The system further comprises a crosstalk canceller configured to estimate an amount of electrical crosstalk affecting measurements of the return signals in order to cancel such crosstalk from measurements of subsequent optical signals received by the APD.
摘要翻译：示例性光传输系统包括经由光纤耦合到光接收器的光子组件（OSA）。 OSA包括被配置为跨光纤传输光信号的激光二极管，并且OSA还包括被配置为从光纤接收光返回信号的雪崩光电二极管（APD）。该系统还包括串扰消除器，其被配置为估计影响返回信号的测量的电串扰量，以便从APD接收的后续光信号的测量中消除这种串扰。

7. 发明授权

US08437111B1 Systems and methods for current limiting with overload protection 有权
标题翻译：具有过载保护功能的电流限制系统和方法
公开(公告)号：US08437111B1
公开(公告)日：2013-05-07
申请号：US12272427
申请日：2008-11-17
申请人： Jared D. Cress , Daniel M. Joffe
发明人： Jared D. Cress , Daniel M. Joffe
IPC分类号： H02H9/02
CPC分类号： H04M11/062
摘要： A current limiter in one exemplary embodiment of the present disclosure has a protection element that protects a current limiting element from excessive power dissipation. The protection element senses a parameter that is indicative of an amount of power being dissipated by the current limiting element. The protection element controls the current limiting element based on the sensed parameter such that power dissipation for the current limiting element is reduced to a safe level during a fault condition thereby protecting the current limiting element from damage during the fault condition.
摘要翻译：在本公开的一个示例性实施例中的限流器具有保护元件，其保护限流元件免于过度的功率耗散。保护元件感测指示由电流限制元件耗散的功率量的参数。保护元件基于感测的参数来控制电流限制元件，使得限流元件的功率消耗在故障状态期间降低到安全水平，从而保护限流元件在故障状态期间的损坏。

8. 发明授权

US08358492B2 Surge protection systems and methods for ethernet communication equipment in outside plant environments 有权
标题翻译：外部环境中以太网通信设备的浪涌保护系统和方法
公开(公告)号：US08358492B2
公开(公告)日：2013-01-22
申请号：US13021505
申请日：2011-02-04
申请人： James B. Wiese , Daniel M. Joffe
发明人： James B. Wiese , Daniel M. Joffe
IPC分类号： H01C7/12
CPC分类号： H04L12/2881 , H02H9/008 , H04L12/413
摘要： The present disclosure generally pertains to surge protection systems that protect outside plant equipment from high-energy surges. In one exemplary embodiment, a protection system is used for protecting Ethernet equipment that is coupled to an outside Ethernet cable. The protection system provides protection and remains capable of coupling signal energy between an Ethernet cable and Ethernet equipment without significantly degrading Ethernet performance. However, the protection system, while allowing the desirable Ethernet signals to pass between the cable and the equipment, prevents the electrical voltages and currents of high-energy surges, such as surges from lightning or AC power faults, from damaging the Ethernet equipment.
摘要翻译：本公开通常涉及用于保护设备外部设备免受高能量浪涌的浪涌保护系统。在一个示例性实施例中，保护系统用于保护耦合到外部以太网电缆的以太网设备。保护系统提供保护，并且仍然能够在以太网电缆和以太网设备之间耦合信号能量，而不会显着降低以太网性能。然而，保护系统在允许希望的以太网信号在电缆和设备之间通过时，可防止诸如闪电或AC电源故障的高能量浪涌的电压和电流损坏以太网设备。

9. 发明授权

US08305144B1 Circuits and methods for controlling quiescent current in amplifiers 有权
标题翻译：用于控制放大器静态电流的电路和方法
公开(公告)号：US08305144B1
公开(公告)日：2012-11-06
申请号：US12942573
申请日：2010-11-09
申请人： Paul Ferguson , Daniel M. Joffe
发明人： Paul Ferguson , Daniel M. Joffe
IPC分类号： H03F3/45
CPC分类号： H03F3/45183 , H03F3/45632 , H03F2203/45681
摘要： A power amplifier provides relatively stable quiescent current while maintaining relatively high signal gains and peak to quiescent current ratios. The power amplifier has an input stage and a current mirror stage and incorporates a control transistor between these stages. The control transistor transitions to the triode mode for small inputs and offset voltages thereby reducing the amplifier circuit's gain. However, the control transistor transitions from the triode region to saturation as the input signal becomes larger thereby allowing the amplifier circuit to maintain a relatively high gain for large inputs. Accordingly, better quiescent current characteristics can be obtained without significantly sacrificing performance.
摘要翻译：功率放大器提供相对稳定的静态电流，同时保持相对较高的信号增益和峰值到静态电流比。功率放大器具有输入级和电流镜级，并且在这些级之间并入控制晶体管。控制晶体管转换到三极管模式用于小输入和偏移电压，从而减小放大器电路的增益。然而，随着输入信号变大，控制晶体管从三极管区域转变为饱和，从而允许放大器电路为大输入保持相对较高的增益。因此，可以在不显着牺牲性能的情况下获得更好的静态电流特性。

10. 发明申请

US20110128661A1 SURGE PROTECTION SYSTEMS AND METHODS FOR ETHERNET COMMUNICATION EQUIPMENT IN OUTSIDE PLANT ENVIRONMENTS 有权
标题翻译：外部工厂环境中的以太网通信设备的防护系统和方法
公开(公告)号：US20110128661A1
公开(公告)日：2011-06-02
申请号：US13021505
申请日：2011-02-04
申请人： James B. Wiese , Daniel M. Joffe
发明人： James B. Wiese , Daniel M. Joffe
IPC分类号： H02H1/00
CPC分类号： H04L12/2881 , H02H9/008 , H04L12/413
摘要： The present disclosure generally pertains to surge protection systems that protect outside plant equipment from high-energy surges. In one exemplary embodiment, a protection system is used for protecting Ethernet equipment that is coupled to an outside Ethernet cable. The protection system provides protection and remains capable of coupling signal energy between an Ethernet cable and Ethernet equipment without significantly degrading Ethernet performance. However, the protection system, while allowing the desirable Ethernet signals to pass between the cable and the equipment, prevents the electrical voltages and currents of high-energy surges, such as surges from lightning or AC power faults, from damaging the Ethernet equipment.
摘要翻译：本公开通常涉及用于保护设备外部设备免受高能量浪涌的浪涌保护系统。在一个示例性实施例中，保护系统用于保护耦合到外部以太网电缆的以太网设备。保护系统提供保护，并且仍然能够在以太网电缆和以太网设备之间耦合信号能量，而不会显着降低以太网性能。然而，保护系统在允许希望的以太网信号在电缆和设备之间通过时，可防止诸如闪电或AC电源故障的高能量浪涌的电压和电流损坏以太网设备。

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