利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

4 条记录 (耗时 0.015 秒)

    MODULATION METHOD, MODULATION PROGRAM, RECORDING MEDIUM, MODULATION DEVICE, AND LIGHT TRANSMITTER
    1.
    发明公开
    MODULATION METHOD, MODULATION PROGRAM, RECORDING MEDIUM, MODULATION DEVICE, AND LIGHT TRANSMITTER 有权
    调查报告，调查报告，澳大利亚证券交易所

    公开(公告)号：EP2249492A1

    公开(公告)日：2010-11-10

    申请号：EP09711758.4

    申请日：2009-02-20

    申请人： Nippon Telegraph and Telephone Corporation ,  NTT Electronics Corporation

    发明人： NAKAMURA, Hirotaka ,  KIMURA, Shunji ,  HARA, Kazutaka ,  KITAHARA, Koji

    IPC分类号： H04B10/04 ,  G02F1/01 ,  H01S5/06 ,  H04B10/06 ,  H04B10/14 ,  H04B10/26 ,  H04B10/28

    CPC分类号： H01S5/042 ,  G02F1/0123 ,  H01S5/0427

    摘要： A modulation method according to the invention is applied to a modulation device in which a light source is driven by a differential signal while a modulation circuit and the light source are capacitively coupled. In the modulation method of the invention, when an average potential fluctuates at an input terminal of the light source, a potential fluctuation is externally provided using a control circuit such that a normal phase side and a reverse phase side become equal to each other in a time constant of the fluctuation in average potential, and transient states of the average potentials at the normal phase side and reverse phase side are equalized and cancel each other as in-phase components of a signal input to the light source, which allows an optical signal to be normally transmitted from the light source. The optical signal can normally be transmitted from the light source even before the average potentials at a normal phase input terminal and a reverse phase input terminal of the light source are stabilized.

    摘要翻译： 根据本发明的调制方法被应用于其中在调制电路和光源电容耦合时由差分信号驱动光源的调制装置。 在本发明的调制方法中，当平均电位在光源的输入端波动时，使用控制电路外部提供电位波动，使得正常相位侧和反相侧在 平均电位波动的时间常数以及正相侧和反相侧的平均电位的过渡状态均衡并相互抵消，作为输入到光源的信号的同相分量，这允许光信号 从光源正常传输。 即使在光源的正相输入端子和反相输入端子的平均电位稳定之前，也可以从光源发送光信号。

    AMPLIFIER
    4.
    发明公开
    AMPLIFIER 审中-公开
    放大器

    公开(公告)号：EP3319231A1

    公开(公告)日：2018-05-09

    申请号：EP16817484.5

    申请日：2016-07-01

    申请人： Nippon Telegraph And Telephone Corporation

    发明人： NAKANO, Shinsuke ,  KATSURAI, Hiroaki ,  NOGAWA, Masafumi ,  KIMURA, Shunji ,  TOBAYASHI, Masatoshi ,  KURITA, Shigehiro ,  ENDO, Masahiro

    IPC分类号： H03F1/26 ,  H03F3/08

    CPC分类号： H03F1/26 ,  H03F1/083 ,  H03F3/08 ,  H03F3/211 ,  H03F3/347 ,  H03F2200/294 ,  H03F2200/72 ,  H04B10/693

    摘要： An amplifier applied to TIA is provided to suppress the noise caused by a current source. An amplifier constituting a transimpedance amplifier includes an inductor element inserted between a current source connected to an input terminal of an amplification stage and a power source voltage line. The current source includes a first transistor in which a base terminal is connected to a current control bias and a collector terminal is connected to the input terminal. The inductor element is inserted between the emitter terminal of the first transistor and the power source voltage line.

    摘要翻译： 应用于TIA的放大器用于抑制由电流源引起的噪声。 构成跨阻放大器的放大器包括插入在连接到放大级的输入端子的电流源和电源电压线之间的电感器元件。 电流源包括第一晶体管，其中基极端子连接到电流控制偏压并且集电极端子连接到输入端子。 电感元件插入在第一晶体管的发射极端和电源电压线之间。