公开(公告)号：US07362855B2

公开(公告)日：2008-04-22

申请号：US10749867

申请日：2003-12-31

申请人： Yan Zhou

发明人： Yan Zhou

IPC分类号： H04M1/00 ,  H04M9/00

CPC分类号： H04M3/007

摘要： A subscriber line interface circuit apparatus includes driver circuitry for combining and driving a downstream voice signal and a downstream data signal onto a subscriber line. Receiver circuitry receives and separates an upstream signal from the subscriber line into an upstream voice signal and an upstream data signal. The driver and receiver circuitry reside on a common integrated circuit die.

摘要翻译： 用户线接口电路装置包括用于将下行语音信号和下行数据信号组合并驱动到用户线路上的驱动器电路。 接收机电路接收并将来自用户线路的上行信号分离成上游语音信号和上游数据信号。 驱动器和接收器电路驻留在公共集成电路管芯上。

公开(公告)号：US07016607B1

公开(公告)日：2006-03-21

申请号：US09460214

申请日：1999-12-13

申请人： John C. Carrick ,  Mark I. Oppenheimer ,  Rajiv R. Ramaswami ,  Ornan A. Gerstel

发明人： John C. Carrick ,  Mark I. Oppenheimer ,  Rajiv R. Ramaswami ,  Ornan A. Gerstel

IPC分类号： H04B10/00

CPC分类号： H04Q11/0062 ,  H04B10/0773 ,  H04B10/0793 ,  H04B2210/075 ,  H04Q2011/0083 ,  H04Q2011/0088

摘要： Methods and apparatus for managing static and dynamic optical network configurations to enable mapping an actual optical network or validating an expected optical network are provided. In one embodiment a validation method includes the step of selecting an optical path having a plurality of nodes from a database defining an expected optical network. A list of detected pilot tones from each node associated with the selected optical path is generated. An expected list of pilot tones associated with each node of the selected optical path is generated. Comparison of the expected and detected lists identifies any mismatched nodes. Another method includes the step of setting a first pilot tone source to have a first pilot tone value. All other network pilot tone sources are set to have another pilot tone value. An optical path associated with the first pilot tone source is then mapped by identifying each node of the network having the first pilot tone value. Extraneous information can be applied to provide greater assurances as to likelihood of possible actual optical paths during the mapping process. Methods of re-configuring network pilot tone sources to preserve mapping and validation abilities when adding nodes, adding optical paths, or even adding another network to a pre-existing network are also provided.

摘要翻译： 提供了用于管理静态和动态光网络配置以实现映射实际光网络或验证预期光网络的方法和装置。 在一个实施例中，验证方法包括从定义预期光网络的数据库中选择具有多个节点的光路的步骤。 产生与所选光路相关联的每个节点的检测到的导频音调的列表。 生成与所选光路的每个节点相关联的导频音调的预期列表。 预期和检测到的列表的比较识别任何不匹配的节点。 另一种方法包括将第一导频音源设置为具有第一导频音值的步骤。 所有其他网络导频音源设置为具有另一个导频音调值。 然后通过识别具有第一导频音调值的网络的每个节点来映射与第一导频音源相关联的光路。 可以应用外部信息，以便在映射过程中对可能的实际光路的可能性提供更大的保证。 还提供了重新配置网络导频音源以在添加节点，添加光路或甚至向现有网络添加另一网络时的映射和验证能力的方法。

公开(公告)号：US06934384B1

公开(公告)日：2005-08-23

申请号：US09502282

申请日：2000-02-10

申请人： Jerrell P. Hein ,  Navdeep S. Sooch

发明人： Jerrell P. Hein ,  Navdeep S. Sooch

IPC分类号： H04M3/00 ,  H04M3/22 ,  H04M19/00 ,  H04M1/00 ,  H04M9/00

CPC分类号： H04M1/738 ,  H04M1/745 ,  H04M3/005 ,  H04M3/04 ,  H04M3/2272 ,  H04M19/00 ,  H04M19/005

摘要： A subscriber line interface circuit apparatus includes a signal processor having sense inputs for sensed tip and ring signals of a subscriber loop. The signal processor generates linefeed driver control signals in response to the sensed signals. The signal processor resides on an integrated circuit die. In another embodiment, a subscriber line interface circuit apparatus includes a signal processor generating subscriber loop control signals in response to sensed tip and ring signals from the subscriber loop. A linefeed driver portion drives the subscriber loop in accordance with the subscriber loop control signals. The linefeed driver portion provides the sensed tip and ring signals. Each of the linefeed driver portion and the signal processor resides on an integrated circuit die. In one packaging implementation, the signal processor and the linefeed driver portion reside on separate integrated circuit die within separate integrated circuit packages. In another packaging implementation, the signal processor and linefeed driver portion reside on separate integrated circuit die within the same integrated circuit package. In yet another packaging implementation, the signal processor and the linefeed driver portion reside on the same integrated circuit die. Regardless of packaging, the common mode and differential mode components are calculated by the signal processor rather than the linefeed driver.

摘要翻译： 用户线接口电路设备包括信号处理器，其具有用于感测到的用户环路的尖端和环形信号的感测输入。 信号处理器响应于感测到的信号而产生线路馈送驱动器控制信号。 信号处理器驻留在集成电路管芯上。 在另一个实施例中，用户线接口电路设备包括信号处理器，响应于来自用户环路的感测到的尖端和环形信号而产生用户环路控制信号。 换行驱动器部分根据用户回路控制信号来驱动用户回路。 换行驱动器部分提供感测到的尖端和振铃信号。 每个换行驱动器部分和信号处理器驻留在集成电路管芯上。 在一个封装实现中，信号处理器和换行驱动器部分驻留在分开的集成电路封装内的单独的集成电路管芯上。 在另一个封装实现中，信号处理器和换行驱动器部分驻留在同一集成电路封装内的分离的集成电路管芯上。 在又一个封装实现中，信号处理器和换行驱动器部分驻留在相同的集成电路管芯上。 无论包装如何，共模和差分模式组件都由信号处理器而不是换行驱动器计算。

公开(公告)号：US07788524B2

公开(公告)日：2010-08-31

申请号：US12146778

申请日：2008-06-26

申请人： Keith Wing ,  Christopher Fitzpatrick ,  Wouter Senf

发明人： Keith Wing ,  Christopher Fitzpatrick ,  Wouter Senf

IPC分类号： G06F11/00

CPC分类号： G06F11/2025 ,  G06F11/203 ,  G06F11/2038 ,  G06F11/2048

摘要： Recovery systems and methods for sustaining the operation of a plurality of networked computers (20a,20b) in the event of a fault conditions are described. The basic recovery system comprises a plurality of virtual machines (31a,31b) installed on a recovery computer (30), each virtual machine being arranged to emulate a corresponding networked computer, and the recovery computer being arranged, in the event of a detected failure of one of the networked computers, to activate and use the virtual machine which corresponds to the failed networked computer (20). The recovery computer (30) may be located on the same network (12) as the networked computers (20), or alternatively on a remotely located local network in case of failure of the entire local network (12).

摘要翻译： 描述在发生故障情况下维持多个联网计算机（20a，20b）的操作的恢复系统和方法。 基本恢复系统包括安装在恢复计算机（30）上的多个虚拟机（31a，31b），每个虚拟机被配置为模拟对应的联网计算机，并且恢复计算机在检测到故障的情况下被布置 的其中一个联网的计算机来激活和使用对应于故障联网的计算机（20）的虚拟机。 在整个本地网络（12）发生故障的情况下，恢复计算机（30）可以位于与联网的计算机（20）相同的网络（12）上，或者可选地位于远程定位的本地网络上。

公开(公告)号：US07598643B2

公开(公告)日：2009-10-06

申请号：US10556861

申请日：2003-05-15

申请人： William D. Davis ,  David M. Lancisi

发明人： William D. Davis ,  David M. Lancisi

IPC分类号： H02K7/09

CPC分类号： F04D29/048 ,  A61M1/101 ,  A61M1/1015 ,  A61M1/1031 ,  A61M1/122 ,  F04D13/0666 ,  F16C32/0436 ,  F16C2316/18 ,  F16C2360/44 ,  H02K7/09 ,  H02K7/14

摘要： An apparatus includes a rotor, a stator, and a plurality of magnets forming bearing poles coupled to a selected one of the stator or the rotor. The apparatus further includes a plurality of shorted coils coupled to the other of the stator and the rotor. The plurality of bearing poles and shorted coils co-operate to form an electrodynamic bearing during rotation of the rotor. The electrodynamic bearing supports the rotor either axially or radially during operation. Hydrodynamic bearing surfaces are provided for generating a hydrodynamic bearing between the rotor and stator. The plurality of magnets may comprise a plurality of distinct magnetic elements or a single element comprising a plurality of distinct magnetic domains. The plurality of distinct magnetic elements or domains may be arranged to form a Halbach array.

摘要翻译： 一种装置包括转子，定子和多个磁体，其形成与定子或转子中选定的一个连接的轴承极。 该装置还包括耦合到定子和转子中的另一个的多个短路线圈。 多个轴承极和短路线圈在转子旋转期间协作以形成电动轴承。 电动轴承在运行过程中轴向或径向支撑转子。 流体动力轴承表面用于在转子和定子之间产生流体动力轴承。 多个磁体可以包括多个不同的磁性元件或包括多个不同磁畴的单个元件。 多个不同的磁性元件或畴可以被布置成形成Halbach阵列。

公开(公告)号：US07486787B2

公开(公告)日：2009-02-03

申请号：US11278405

申请日：2006-03-31

申请人： Jerrell P. Hein ,  Marius Goldenberg

发明人： Jerrell P. Hein ,  Marius Goldenberg

IPC分类号： H04M9/00

CPC分类号： H04M3/005

摘要： Methods and apparatus for coupling outgoing analog audio signals to a subscriber line are described. One method includes the step of receiving the outgoing audio signal. The outgoing audio signal is coupled to the subscriber line through a plurality of transistors coupled in a common base configuration. In one embodiment, linefeed driver control signals for controlling battery feed to the subscriber line are received on the same signal lines as the outgoing audio signal. A subscriber line interface circuit apparatus includes a first circuit for coupling a received outgoing audio signal to a subscriber line. The first circuit couples the received outgoing audio signal to the subscriber line through a common base isolation stage. In various embodiments, the common base isolation stage comprises a plurality of bipolar junction transistors coupled in a common base configuration or a plurality of field effect transistors coupled in a common gate configuration.

摘要翻译： 描述了将出口模拟音频信号耦合到用户线的方法和装置。 一种方法包括接收输出音频信号的步骤。 输出音频信号通过以公共基本配置耦合的多个晶体管耦合到用户线路。 在一个实施例中，用于控制到用户线的电池馈送的换行驱动器控制信号在与输出音频信号相同的信号线上被接收。 用户线接口电路装置包括用于将接收到的输出音频信号耦合到用户线路的第一电路。 第一电路通过公共基本隔离级将接收到的输出音频信号耦合到用户线路。 在各种实施例中，公共基极隔离级包括以公共基极配置耦合的多个双极结型晶体管或以公共栅极配置耦合的多个场效应晶体管。

公开(公告)号：US07450712B1

公开(公告)日：2008-11-11

申请号：US09693652

申请日：2000-10-21

申请人： Jerrell P. Hein ,  Marius Goldenberg

发明人： Jerrell P. Hein ,  Marius Goldenberg

IPC分类号： H04M1/00 ,  H04M9/00

CPC分类号： H04M19/005

摘要： A method includes the step of providing subscriber loop pull-down circuitry operating in a first voltage domain. The subscriber loop pull-down circuitry decreases at least one of a tip and a ring line current in response to a corresponding pull-down control signal. The method further includes the step of providing control circuitry operating in a second voltage domain, wherein the first and second voltage domains are substantially distinct. The control circuitry varies the pull-down control signal to decrease a selected one of the tip and ring line currents in response to a sensed current corresponding to an associated one of a tip pull-down current and a ring pull-down current. A subscriber line interface circuit apparatus includes pull-down circuitry operating in a first voltage domain. The pull-down circuitry varies line currents of the tip and ring lines in response to a pull-down control signal provided by control circuitry operating in a second voltage domain. The first and second voltage domains are substantially distinct. A control isolation stage is coupled to provide the pull-down control signals from the control circuitry to the pull-down circuitry. A feedback isolation stage provides feedback signals from the pull-down circuitry to the control circuitry. The feedback signals represent sensed pull-down currents associated with the tip and ring lines. The control circuitry provides the pull-down control signals for the tip and ring lines in response to the sensed pull-down currents.

摘要翻译： 一种方法包括提供在第一电压域中操作的用户环路下拉电路的步骤。 响应于相应的下拉控制信号，用户环路下拉电路减少尖端和环线电流中的至少一个。 该方法还包括提供在第二电压域中操作的控制电路的步骤，其中第一和第二电压域基本不同。 响应于对应于尖端下拉电流和环下拉电流中相关联的一个的感测电流，控制电路改变下拉控制信号以减小尖端和环形线电流中选择的一个。 用户线接口电路装置包括在第一电压域中操作的下拉电路。 下拉电路响应由在第二电压域中操作的控制电路提供的下拉控制信号，改变尖端和环形线路的线路电流。 第一和第二电压域基本不同。 耦合控制隔离级以提供从控制电路到下拉电路的下拉控制信号。 反馈隔离级提供从下拉电路到控制电路的反馈信号。 反馈信号表示与尖端和环线相关联的感测下拉电流。 响应感测的下拉电流，控制电路为尖端和环线提供下拉控制信号。

公开(公告)号：US07400719B2

公开(公告)日：2008-07-15

申请号：US10750421

申请日：2003-12-31

申请人： Yan Zhou

发明人： Yan Zhou

IPC分类号： H04M1/00 ,  H04M9/00

CPC分类号： H04M3/007

摘要： A subscriber line interface circuit apparatus includes a first driver for driving a downstream data signal in a non-voiceband range and a metering signal onto a subscriber line. The apparatus includes a second driver for driving a downstream voice signal in a voiceband range onto the subscriber line. Receiver circuitry is coupled to provide an upstream data signal and an upstream voice signal from an upstream signal carried by the subscriber line. The first driver and receiver circuitry reside on a same first integrated circuit die.

摘要翻译： 用户线路接口电路装置包括用于驱动非语音频带范围内的下游数据信号的第一驱动器和用户线上的测量信号。 该装置包括用于将语音频带范围内的下游语音信号驱动到用户线路上的第二驱动器。 接收器电路被耦合以从用户线路承载的上行信号提供上行数据信号和上行语音信号。 第一驱动器和接收器电路驻留在相同的第一集成电路管芯上。

公开(公告)号：US07283075B2

公开(公告)日：2007-10-16

申请号：US10917261

申请日：2004-08-12

申请人： Albert K. Lu ,  Yan Zhou ,  Xun Yang

发明人： Albert K. Lu ,  Yan Zhou ,  Xun Yang

IPC分类号： H03M3/00

CPC分类号： H03M3/392

摘要： Delta-sigma modulators with a selectable noise transfer function are described. In various embodiments, the noise transfer function is varied in accordance with a bandwidth, a communication protocol, or an oversampling ratio of a selected communication channel.

摘要翻译： 描述了具有可选噪声传递功能的Δ-Σ调制器。 在各种实施例中，噪声传递函数根据所选通信信道的带宽，通信协议或过采样比而变化。

公开(公告)号：US07254177B2

公开(公告)日：2007-08-07

申请号：US11094487

申请日：2005-03-30

申请人： Yan Zhou

发明人： Yan Zhou

IPC分类号： H04L25/00

CPC分类号： H04B3/23 ,  H04L27/0002 ,  H04M11/062

摘要： An analog front end for communicating discrete multitone modulated signals on a subscriber line includes a transmit block, a receive block, and a hybrid packaged within a same integrated circuit. Upstream data to be transmitted to the subscriber line is pre-processed to eliminate even images. A power spectral density shaping filter subsequently substantially eliminates undesired energy in the upstream data signal. A high pass filter further rejects upstream data from the downstream data signal. The power spectral density filter and the high pass filter enable the use of a first order hybrid network for extracting the downstream data. The analog front end may include an additional analog channel to enable voiceband (e.g., v.90) communication concurrent with non-voiceband (e.g., xDSL) operation. Sample rate conversion is utilized to avoid the use of multiple independent clocks for otherwise incompatible clocking requirements.

摘要翻译： 用于在用户线上传送离散多音调制信号的模拟前端包括发送块，接收块和封装在同一集成电路内的混合信号。 要发送到用户线路的上行数据被预处理以消除均匀的图像。 功率谱密度整形滤波器随后基本上消除了上游数据信号中的不期望的能量。 高通滤波器进一步拒绝来自下游数据信号的上行数据。 功率谱密度滤波器和高通滤波器使得能够使用一阶混合网络来提取下行数据。 模拟前端可以包括额外的模拟通道，以使得与非话音频带（例如，xDSL）操作同时进行语音频带（例如，v.90）通信。 利用采样率转换来避免使用多个独立时钟，否则不兼容的时钟要求。