Method and apparatus for measuring coil current
    53.
    发明授权
    Method and apparatus for measuring coil current 有权
    测量线圈电流的方法和装置

    公开(公告)号:US07208963B2

    公开(公告)日:2007-04-24

    申请号:US10977145

    申请日:2004-10-29

    IPC分类号: G01R27/08 G01R27/10

    CPC分类号: G01R15/18

    摘要: A method and apparatus is described according to various embodiments, for flowing current from one region of a coil to another region of the coil. The flowing induces—through flux linkage —a voltage across a second coil. A second current substantially does not flow though the second coil. The method and apparatus also includes measuring the current with the voltage between the two coils.

    摘要翻译: 根据各种实施例描述了用于将电流从线圈的一个区域流动到线圈的另一个区域的方法和装置。 流过的感应通量 - 跨越第二个线圈的电压。 第二电流基本上不会流经第二线圈。 该方法和装置还包括用两个线圈之间的电压测量电流。

    Memory cell driver circuits
    54.
    发明授权
    Memory cell driver circuits 有权
    存储单元驱动电路

    公开(公告)号:US07236410B2

    公开(公告)日:2007-06-26

    申请号:US11169106

    申请日:2005-06-27

    IPC分类号: G11C7/00 G11C17/00 G11C5/06

    CPC分类号: G11C17/18

    摘要: A system includes a pull-up circuit to program a memory cell. The pull-up circuit may include a level shifter to receive a control signal, a supply voltage, and one or more of a plurality of rail voltages, each of the plurality of rail voltages substantially equal to a respective integer multiple of the supply voltage, and to generate a second control signal, and a cascode stage. The cascode stage may include a plurality of transistors, a gate voltage of each of the plurality of transistors to be controlled at least in part by a respective one of the second control signal, the supply voltage, and at least one of the plurality of rail voltages, and an output node to provide a cell programming signal.

    摘要翻译: 系统包括用于对存储器单元进行编程的上拉电路。 上拉电路可以包括电平移位器以接收控制信号,电源电压以及多个轨道电压中的一个或多个,多个轨道电压中的每一个基本上等于电源电压的相应整数倍, 并产生第二控制信号和共源共栅级。 共源共栅级可以包括多个晶体管,多个晶体管中的每一个的栅极电压至少部分地由第二控制信号,电源电压和多个轨道中的至少一个轨道 电压和输出节点以提供单元编程信号。

    Memory cell driver circuits
    55.
    发明申请
    Memory cell driver circuits 有权
    存储单元驱动电路

    公开(公告)号:US20060291265A1

    公开(公告)日:2006-12-28

    申请号:US11169106

    申请日:2005-06-27

    IPC分类号: G11C17/00

    CPC分类号: G11C17/18

    摘要: A system includes a pull-up circuit to program a memory cell. The pull-up circuit may include a level shifter to receive a control signal, a supply voltage, and one or more of a plurality of rail voltages, each of the plurality of rail voltages substantially equal to a respective integer multiple of the supply voltage, and to generate a second control signal, and a cascode stage. The cascode stage may include a plurality of transistors, a gate voltage of each of the plurality of transistors to be controlled at least in part by a respective one of the second control signal, the supply voltage, and at least one of the plurality of rail voltages, and an output node to provide a cell programming signal.

    摘要翻译: 系统包括用于对存储器单元进行编程的上拉电路。 上拉电路可以包括电平移位器以接收控制信号,电源电压以及多个轨道电压中的一个或多个,多个轨道电压中的每一个基本上等于电源电压的相应整数倍, 并产生第二控制信号和共源共栅级。 共源共栅级可以包括多个晶体管,多个晶体管中的每一个的栅极电压至少部分地由第二控制信号,电源电压和多个轨道中的至少一个轨道 电压和输出节点以提供单元编程信号。

    METHOD AND APPARATUS FOR OPTICAL SIGNALING
    56.
    发明申请
    METHOD AND APPARATUS FOR OPTICAL SIGNALING 有权
    光信号的方法和装置

    公开(公告)号:US20110268457A1

    公开(公告)日:2011-11-03

    申请号:US13183178

    申请日:2011-07-14

    IPC分类号: H04B10/00 H04B10/06 H04B10/04

    摘要: A method and apparatus for optical signaling. In one embodiment, a laser driver converts a digital voltage sequence to a current signal having a bias mode adjustable by a bias control and a modulation mode adjustable by a modulation control. A laser generates an optical signal responsive to the current signal of the laser driver. In one embodiment, a photo-detector receives an optical signal and generates a single ended current signal. A transimpedance amplifier circuit converts the single ended current signal to a differential voltage signal. A clock recovery circuit generates an aligned clock signal and a sampler circuit uses the aligned clock signal to retrieve a digital voltage sequence.

    摘要翻译: 一种用于光信令的方法和装置。 在一个实施例中,激光驱动器将数字电压序列转换为具有可通过偏置控制调节的偏置模式的电流信号和通过调制控制可调节的调制模式。 激光器响应于激光驱动器的当前信号产生光信号。 在一个实施例中,光电检测器接收光信号并产生单端电流信号。 跨阻放大器电路将单端电流信号转换为差分电压信号。 时钟恢复电路产生对准的时钟信号,并且采样器电路使用对准的时钟信号来取回数字电压序列。

    Method and apparatus for optical signaling
    57.
    发明授权
    Method and apparatus for optical signaling 有权
    光信令的方法和装置

    公开(公告)号:US07991302B2

    公开(公告)日:2011-08-02

    申请号:US10816026

    申请日:2004-03-31

    IPC分类号: H04B10/06 H01S3/00

    摘要: A method and apparatus for optical signaling. In one embodiment, a laser driver converts a digital voltage sequence to a current signal having a bias mode adjustable by a bias control and a modulation mode adjustable by a modulation control. A laser generates an optical signal responsive to the current signal of the laser driver. In one embodiment, a photo-detector receives an optical signal and generates a single ended current signal. A transimpedance amplifier circuit converts the single ended current signal to a differential voltage signal. A clock recovery circuit generates an aligned clock signal and a sampler circuit uses the aligned clock signal to retrieve a digital voltage sequence.

    摘要翻译: 一种用于光信令的方法和装置。 在一个实施例中,激光驱动器将数字电压序列转换为具有可通过偏置控制调节的偏置模式的电流信号和通过调制控制可调节的调制模式。 激光器响应于激光驱动器的当前信号产生光信号。 在一个实施例中,光电检测器接收光信号并产生单端电流信号。 跨阻放大器电路将单端电流信号转换为差分电压信号。 时钟恢复电路产生对准的时钟信号,并且采样器电路使用对准的时钟信号来取回数字电压序列。

    Optical offset signal cancellation for optical receiver
    58.
    发明授权
    Optical offset signal cancellation for optical receiver 有权
    光接收机的光偏移信号消除

    公开(公告)号:US07536107B2

    公开(公告)日:2009-05-19

    申请号:US11026632

    申请日:2004-12-30

    IPC分类号: H04B10/00

    CPC分类号: H04B10/66

    摘要: A laser driver for high speed interconnections may convert a digital signal to a current train of a bias mode to represent logical zero and of a modulation mode to represent logical one. An optical signal thus produced may include an optical offset. An optical receiver may include a photo-detector to receive the optical signal and generate a current signal, which includes a corresponding current offset. A first amplifier stage converts the current signal to a voltage signal and a second amplifier stage generates a digital output from the voltage signal. One or more low-pass filters may be used to filter the digital output and generate a filtered offset signal for a differential amplifier to generate an offset cancellation signal. The offset cancellation signal may be provided to offset cancellation circuitry to remove the current offset from the current signal generated by the photo-detector.

    摘要翻译: 用于高速互连的激光驱动器可以将数字信号转换为偏置模式的当前列,以表示逻辑零和调制模式以表示逻辑1。 如此产生的光信号可以包括光偏移。 光接收器可以包括光检测器,用于接收光信号并产生电流信号,其包括对应的电流偏移。 第一放大器级将电流信号转换为电压信号,第二放大器级从电压信号产生数字输出。 可以使用一个或多个低通滤波器来对数字输出进行滤波,并产生用于差分放大器的滤波偏移信号以产生偏移消除信号。 可以将偏移消除信号提供给偏移消除电路,以从光电检测器产生的电流信号中去除电流偏移。

    Clock and data recovery circuit
    59.
    发明申请
    Clock and data recovery circuit 审中-公开
    时钟和数据恢复电路

    公开(公告)号:US20060067452A1

    公开(公告)日:2006-03-30

    申请号:US10948697

    申请日:2004-09-24

    IPC分类号: H03D3/24

    摘要: A clock and data recovery circuit is provided that includes a phase/frequency detector to receive input data and multiphase clock signals. The phase/frequency detector including a first set of flip-flop circuits each to sample the input data at one of the multiphase clock signals and each to output a sampled data, and a second set of flip-flop circuits to retime the sampled data based on a similar clock signal applied to each of the second set of flip-flop circuits.

    摘要翻译: 提供了一种时钟和数据恢复电路,其包括用于接收输入数据和多相时钟信号的相位/频率检测器。 相位/频率检测器包括第一组触发器电路,每个触发器电路各自以多相时钟信号中的一个采样输入数据,并且每个触发器电路各自输出采样数据;以及第二组触发器电路,用于基于采样数据进行加权 在施加到每个第二组触发器电路的类似时钟信号上。

    Method and apparatus for optical signaling
    60.
    发明授权
    Method and apparatus for optical signaling 有权
    光信令的方法和装置

    公开(公告)号:US08406634B2

    公开(公告)日:2013-03-26

    申请号:US13183178

    申请日:2011-07-14

    IPC分类号: H04B10/18

    摘要: A method and apparatus for optical signaling. In one embodiment, a laser driver converts a digital voltage sequence to a current signal having a bias mode adjustable by a bias control and a modulation mode adjustable by a modulation control. A laser generates an optical signal responsive to the current signal of the laser driver. In one embodiment, a photo-detector receives an optical signal and generates a single ended current signal. A transimpedance amplifier circuit converts the single ended current signal to a differential voltage signal. A clock recovery circuit generates an aligned clock signal and a sampler circuit uses the aligned clock signal to retrieve a digital voltage sequence.

    摘要翻译: 一种用于光信令的方法和装置。 在一个实施例中,激光驱动器将数字电压序列转换为具有可通过偏置控制调节的偏置模式的电流信号和通过调制控制可调节的调制模式。 激光器响应于激光驱动器的当前信号产生光信号。 在一个实施例中,光电检测器接收光信号并产生单端电流信号。 跨阻放大器电路将单端电流信号转换为差分电压信号。 时钟恢复电路产生对准的时钟信号,并且采样器电路使用对准的时钟信号来取回数字电压序列。