公开(公告)号：US20170131730A1

公开(公告)日：2017-05-11

申请号：US14933771

申请日：2015-11-05

申请人： Daniel M. Joffe ,  W. Stuart Venters ,  Vern Brethour

发明人： Daniel M. Joffe ,  W. Stuart Venters ,  Vern Brethour

IPC分类号： G05F1/46 ,  H04B3/54 ,  G05F5/00 ,  H03H11/12 ,  G05F3/18 ,  H04L25/06 ,  H03H11/04

CPC分类号： G05F1/461 ,  G05F3/18 ,  G05F5/00 ,  H03H11/04 ,  H03H11/0472 ,  H03H11/126 ,  H04B3/548 ,  H04L25/061

摘要： A coupling module can be used to communicate high speed signals between an optical transceiver and a processing module of an optical communication device, such as an optical line termination (OLT) or an optical network unit (ONU). The coupling module can adjust the DC offset voltage level of the signal output by the optical transceiver to the DC offset voltage level required by the processing module. In addition, the coupling module splits the output signal from the optical transceiver and passes the signal to both a high pass filter and a low pass filter that are connected in parallel. The outputs of the high pass filter and the low pass filter are then combined and provided to the processing module. The high pass filter and the low pass filter can be configured such that all frequencies of the signal from the optical transceiver are provided to the processing module.

公开(公告)号：US09614616B2

公开(公告)日：2017-04-04

申请号：US13922177

申请日：2013-06-19

申请人： Daniel M. Joffe ,  Leif Sandstrom ,  George Elliott Bekken

发明人： Daniel M. Joffe ,  Leif Sandstrom ,  George Elliott Bekken

IPC分类号： H04B10/00 ,  H04B10/2507 ,  G01M11/00 ,  H04B10/071

CPC分类号： H04B10/2507 ,  G01M11/3118 ,  H04B10/071

摘要： A correlation optical time domain reflectometer (OTDR) provides a correlation sequence that is continuously transmitted along a fiber for testing the fiber for anomalies. Such continuous transmission can result in beat noise that degrades the quality of the measured returns. In this regard, each sample is composed of backscatter returns from many points along the fiber that arrive at the OTDR at the same time. When a subset of these returns have frequency differences that appear in the passband of the OTDR receiver, the constructive and destructive interference of these returns at the OTDR receiver can cause significant low-frequency beat noise in the OTDR signal. An optical transmitter is configured to transmit the correlation sequence through the fiber using a wideband optical signal such that the beat noise is suppressed within the passband of the OTDR receiver, thereby improving the quality of the returns measured by the OTDR.

公开(公告)号：US09473241B1

公开(公告)日：2016-10-18

申请号：US14792176

申请日：2015-07-06

申请人： Daniel M. Joffe

发明人： Daniel M. Joffe

IPC分类号： H04J14/00 ,  H04B10/27 ,  H04B10/2575 ,  H04M7/00

CPC分类号： H04B10/27 ,  H04B10/2575 ,  H04M19/08

摘要： A combination of algorithms and circuits can control the connectivity of a drop connection to either a telephone service or a high-speed data service at a distribution point. The algorithms and circuits can operate in the absence of a conventional power supply at the distribution point. The circuits can connect the drop connection to the high-speed data service in response to the receipt of an activation signal sent by equipment at the customer premises. After the connection to the high-speed data service is complete, the customer premises equipment can be used to apply back power to the components of the distribution point. If the customer premises equipment stops providing back power to the components of the distribution point, the circuits can connect the drop connection to the telephone service.

摘要翻译： 算法和电路的组合可以在分配点处控制连接到电话服务或高速数据服务的连接。 算法和电路可以在分配点没有常规电源的情况下工作。 这些电路可以响应于接收到由客户驻地设备发送的激活信号而将分接连接连接到高速数据服务。 在连接到高速数据业务完成之后，客户端设备可以用于向分发点的组件提供反向电力。 如果客户驻地设备停止向分配点的组件提供反向电力，则电路可以将分接口连接到电话服务。

公开(公告)号：US08971717B1

公开(公告)日：2015-03-03

申请号：US13367205

申请日：2012-02-06

申请人： Daniel M. Joffe

发明人： Daniel M. Joffe

IPC分类号： H04B10/00 ,  H04B10/04 ,  H04B10/12

CPC分类号： H04B10/00 ,  H04B10/071 ,  H04B10/6971

摘要： An optical system has an optical emitter that transmits an optical signal through an optical fiber. An optical detector detects light from the fiber and provides an analog signal indicative of such light. A crosstalk cancellation element is configured to receive an electrical signal from the optical emitter and to adjust such signal in order to form a cancellation signal that models the optical and/or electrical crosstalk affecting the analog signal. The cancellation signal is subtracted from the analog signal thereby removing optical and/or electrical crosstalk from the analog signal.

摘要翻译： 光学系统具有通过光纤传输光信号的光发射器。 光学检测器检测来自光纤的光，并提供指示这种光的模拟信号。 串扰消除元件被配置为从光发射器接收电信号并且调整这样的信号，以便形成对影响模拟信号的光和/或电串扰建模的抵消信号。 从模拟信号中减去抵消信号，从而消除模拟信号的光和/或电串扰。

公开(公告)号：US20140003821A1

公开(公告)日：2014-01-02

申请号：US13922177

申请日：2013-06-19

申请人： Daniel M. Joffe ,  Leif Sandstrom ,  George Elliott Bekken

发明人： Daniel M. Joffe ,  Leif Sandstrom ,  George Elliott Bekken

IPC分类号： H04B10/2507

CPC分类号： H04B10/2507 ,  G01M11/3118 ,  H04B10/071

摘要： A correlation optical time domain reflectometer (OTDR) provides a correlation sequence that is continuously transmitted along a fiber for testing the fiber for anomalies. Such continuous transmission can result in beat noise that degrades the quality of the measured returns. In this regard, each sample is composed of backscatter returns from many points along the fiber that arrive at the OTDR at the same time. When a subset of these returns have frequency differences that appear in the passband of the OTDR receiver, the constructive and destructive interference of these returns at the OTDR receiver can cause significant low-frequency beat noise in the OTDR signal. An optical transmitter is configured to transmit the correlation sequence through the fiber using a wideband optical signal such that the beat noise is suppressed within the passband of the OTDR receiver, thereby improving the quality of the returns measured by the OTDR.

摘要翻译： 相关光时域反射计（OTDR）提供了沿光纤连续传输的相关序列，用于测试光纤的异常。 这种连续传输可能导致差拍噪声降低测量回报的质量。 在这方面，每个样本由沿同一时间到达OTDR的光纤的许多点的反向散射返回组成。 当这些返回的子集具有出现在OTDR接收机的通带中的频率差时，在OTDR接收机处的这些返回的建构性和相消干扰可以在OTDR信号中引起显着的低频差拍噪声。 光发射器被配置为使用宽带光信号通过光纤发送相关序列，使得在OTDR接收机的通带内抑制拍频噪声，从而提高由OTDR测量的返回质量。

公开(公告)号：US20120300817A1

公开(公告)日：2012-11-29

申请号：US13117918

申请日：2011-05-27

申请人： Brian Smith ,  Daniel M. Joffe

发明人： Brian Smith ,  Daniel M. Joffe

IPC分类号： H04B1/38

CPC分类号： H04L12/2892 ,  H04L12/10

摘要： A system in accordance with an exemplary embodiment of the present disclosure comprises an NAD positioned at an intermediate point between a network facility and one or more customer premises (CP). The NAD is coupled to CP transceivers located at the one or more customer premises via a plurality of subscriber lines. The CP transceivers are configured to provide power to and also communicate with the NAD via the subscriber lines. The NAD is further configured to form a power signal based on the power received from multiple subscriber lines and to provide the power signal to components of the NAD. The NAD is further configured to determine from which of the subscriber lines it is receiving at least a certain amount of power and to selectively enable and disable the communication service provided over each respective subscriber line based on such determination. The NAD also powers down at least some components of the NAD that were used to previously provide the services that have since been disabled.

摘要翻译： 根据本公开的示例性实施例的系统包括位于网络设施和一个或多个客户驻地（CP）之间的中间点处的NAD。 NAD经由多个用户线路耦合到位于一个或多个客户驻地的CP收发器。 CP收发器被配置为经由用户线路向NAD提供电力并且还与NAD通信。 NAD还被配置为基于从多个用户线路接收的功率形成功率信号，并且向NAD的组件提供功率信号。 NAD还被配置为确定其中哪个用户线路正在接收至少一定量的功率，并且基于这样的确定来选择性地启用和禁用在每个相应用户线路上提供的通信服务。 NAD还至少降低了用于先前提供已被禁用的服务的NAD的一些组成部分。

公开(公告)号：US07794290B1

公开(公告)日：2010-09-14

申请号：US12506285

申请日：2009-07-21

申请人： Daniel M. Joffe ,  Jeremy Harris

发明人： Daniel M. Joffe ,  Jeremy Harris

IPC分类号： H01R13/04

CPC分类号： H01R13/6461 ,  H01R13/6477

摘要： A communications connector includes an electrically non-conductive connector body having a terminal face. A plurality of connector terminals are positioned on the terminal face and arranged in a plurality of Tip/Ring terminal pairs, which are positioned substantially linearly with each other along the terminal face and arranged in alternating vertical and horizontal orientation of Tip/Ring terminal pairs and spaced to each other such that crosstalk among the Tip/Ring terminal pairs is cancelled.

摘要翻译： 通信连接器包括具有终端面的非导电连接器主体。 多个连接器端子定位在端子面上并且布置在多个尖端/环形端子对中，这些端子对沿着端子面彼此基本上线性地布置并且以尖端/环形端子对的交替的垂直和水平取向布置，并且 彼此间隔开，使得尖端/环形端子对之间的串扰被取消。

公开(公告)号：US07593494B1

公开(公告)日：2009-09-22

申请号：US10948492

申请日：2004-09-23

申请人： Ayman Ghobrial ,  Michael D. Turner ,  Daniel M. Joffe

发明人： Ayman Ghobrial ,  Michael D. Turner ,  Daniel M. Joffe

IPC分类号： H04B1/10

CPC分类号： H04B3/30

摘要： A system for canceling impulse noise comprises an adaptive impulse canceler and a combiner. The adaptive impulse canceler is configured to receive a common mode component of a received signal and to detect a noise impulse in the common mode component. The impulse canceler is further configured to provide, based on the noise impulse in the common mode component, an impulse noise estimation for a differential mode component of the received signal. The combiner is configured to receive the differential mode component and the impulse noise estimation and to subtract the impulse noise estimation from the differential mode component.

摘要翻译： 用于消除脉冲噪声的系统包括自适应脉冲消除器和组合器。 自适应脉冲消除器被配置为接收接收信号的共模分量并且检测共模分量中的噪声脉冲。 脉冲消除器还被配置为基于共模分量中的噪声脉冲提供用于接收信号的差模分量的脉冲噪声估计。 组合器被配置为接收差分模式分量和脉冲噪声估计，并从差分模式分量中减去脉冲噪声估计。

公开(公告)号：US07262664B1

公开(公告)日：2007-08-28

申请号：US11143061

申请日：2005-06-02

申请人： Daniel M. Joffe ,  Paul Calvin Ferguson

发明人： Daniel M. Joffe ,  Paul Calvin Ferguson

IPC分类号： H03F3/45

CPC分类号： H03F3/45183 ,  H03F3/45744 ,  H03F2203/45212 ,  H03F2203/45354 ,  H03F2203/45356

摘要： Typical amplifier circuits used to implement various type of power amplifiers, including line drivers, are capable of supplying high output currents while maintaining a low standby current. Variation in the manufacturing process, however, can lead to large variations in quiescent current of the amplifier. In particular, transistor mismatch and input offset voltage can cause the quiescent current to be very inconsistent from chip to chip. An amplifier in accordance with the present disclosure uses a transconductance amplifier to stabilize the quiescent current. The transconductance amplifier reduces the gain of the amplifier's input stage for very small signals such as the input offset voltage. The transconductance amplifier saturates for input signals larger than the expected offset voltage, allowing the normal high gain of the input stage to amplify the signal without significant gain reduction.

摘要翻译： 用于实现包括线路驱动器在内的各种功率放大器的典型放大器电路能够在保持低待机电流的同时提供高输出电流。 然而，制造过程的变化可能导致放大器的静态电流的大变化。 特别地，晶体管失配和输入偏移电压可能导致静态电流从芯片到芯片非常不一致。 根据本公开的放大器使用跨导放大器来稳定静态电流。 跨导放大器减小了放大器输入级的增益，用于输入偏移电压等非常小的信号。 跨导放大器对于大于预期偏移电压的输入信号饱和，允许输入级的正常高增益放大信号，而不会显着增益减小。

公开(公告)号：US07130412B2

公开(公告)日：2006-10-31

申请号：US09997228

申请日：2001-11-29

申请人： Daniel M. Joffe ,  Robert E. Gewin ,  Christopher J. Foran

发明人： Daniel M. Joffe ,  Robert E. Gewin ,  Christopher J. Foran

IPC分类号： H04M19/00

CPC分类号： H04M19/005 ,  H04M1/76

摘要： A synthetic impedance telecommunication line driver has no electrical energy-dissipating elements in series with its output, and synthesizes its output impedance in accordance with current fed back from an output current (mirror) sensing circuit. This allows the driver to realize substantially reduced power requirements for driving a telecommunication line, such as, but not limited to a DSX-1 line. The driver includes an operational amplifier having a first polarity input coupled through an input resistor to an input port, to which a signal voltage to applied to an output port is coupled. A second polarity input of the amplifier is coupled to a reference voltage. A feedback resistor is coupled between the amplifier output and its inverting input. An output current-dependent current source, such as a current mirror coupled in circuit with the output node, generates a current as a small fraction k of the output current. This mirrored fraction of the output current is fed back to an input of the amplifier, and enables the output impedance Zout of the driver to be defined in terms of the mirror current ratio k and the value of the driver amplifier's feedback resistor.

摘要翻译： 合成阻抗电信线路驱动器没有与其输出串联的电能消耗元件，并且根据从输出电流（反射镜）感测电路反馈的电流来合成其输出阻抗。 这允许驾驶员实现用于驱动电信线路的显着降低的功率要求，例如但不限于DSX-1线路。 驱动器包括运算放大器，其具有通过输入电阻耦合到输入端口的第一极性输入，施加到输出端口的信号电压耦合到输入端口。 放大器的第二极性输入耦合到参考电压。 反馈电阻耦合在放大器输出端和反相输入端之间。 输出电流相关电流源，例如与输出节点电路耦合的电流镜，产生电流作为输出电流的小部分k。 输出电流的这个镜像分数被反馈到放大器的输入，并且使得驱动器的输出阻抗Zout根据镜电流比k和驱动放大器的反馈电阻的值来定义。