Laser diode driver driven in shunt mode by signals complementary to each other
    1.
    发明授权
    Laser diode driver driven in shunt mode by signals complementary to each other 有权
    激光二极管驱动器由分流模式通过互补的信号驱动

    公开(公告)号:US08121161B2

    公开(公告)日:2012-02-21

    申请号:US12476654

    申请日:2009-06-02

    申请人: Keiji Tanaka

    发明人: Keiji Tanaka

    IPC分类号: H01S3/13 H01S3/00

    CPC分类号: H01S5/06213 H01S5/0427

    摘要: A laser driver to drive an LD in the shunt mode and driven with signals complementary to each other is disclosed. The driver includes two FETs of the enhancement and a terminator. Two FETs are connected in parallel with the LD and driven by the complementary signals but have sizes different from each other. The terminator is connected between respective gate terminals of the FET. The driver further includes a capacitor that compensates the difference in the size of two FETs, which is substantially equal to a magnitude of the junction capacitance of the FET. The capacitor is integrated with the FETs.

    摘要翻译: 公开了以分流模式驱动LD并以彼此互补的信号驱动的激光驱动器。 驱动器包括两个增强型FET和一个终端。 两个FET与LD并联连接并由互补信号驱动,但具有彼此不同的尺寸。 端子连接在FET的相应栅极端子之间。 驱动器还包括补偿两个FET的尺寸差异的电容器,其基本上等于FET的结电容的大小。 电容器与FET集成。

    GREASE COMPOSITION
    3.
    发明申请
    GREASE COMPOSITION 审中-公开
    润滑脂组合物

    公开(公告)号:US20110136709A1

    公开(公告)日:2011-06-09

    申请号:US13002708

    申请日:2009-07-06

    摘要: Grease composition for use in resin lubrication incorporating into a grease base material which includes a base oil and a fatty acid metal salt thickener at least one saturated or unsaturated fatty acid having from 8 to 22 carbon atoms and/or fatty acid metal salt, being a metal salt of a linear saturated fatty acid having from 8 to 14 carbon atoms or a metal salt of an unsaturated fatty acid having from 16 to 22 carbon atoms and from 1 to 4 unsaturated groups, the metal having a valence of from 1 to 4 excluding fatty acid metal salts used for the thickener. The grease composition of the present invention gives satisfactory lubrication properties between resin and resin or resin and other material such as a metal.

    摘要翻译: 包含基础油和脂肪酸金属盐增稠剂至少一种具有8-22个碳原子的饱和或不饱和脂肪酸和/或脂肪酸金属盐的润滑脂基料中的用于树脂润滑的油脂组合物,其为 具有8至14个碳原子的直链饱和脂肪酸的金属盐或具有16至22个碳原子和1至4个不饱和基团的不饱和脂肪酸的金属盐,所述金属具有1至4的化合价,不包括 用于增稠剂的脂肪酸金属盐。 本发明的润滑脂组合物在树脂和树脂或树脂与其它材料如金属之间提供令人满意的润滑性能。

    Self-starting type permanent magnet synchronous motor and a compressor using the same
    4.
    发明授权
    Self-starting type permanent magnet synchronous motor and a compressor using the same 有权
    自启型永磁同步电动机和使用该永磁同步电动机的压缩机

    公开(公告)号:US07902713B2

    公开(公告)日:2011-03-08

    申请号:US12336647

    申请日:2008-12-17

    IPC分类号: H02K21/12 H02K21/14 H02K1/27

    CPC分类号: H02K21/46

    摘要: A self-starting type permanent magnet synchronous motor comprises a stator and a rotor. The rotor comprises a rotor core having a plurality of slots provided in an outer periphery thereof and a cage winding comprising conductive bars embedded in the slots and conductive end rings that short-circuit the conductive bars on both end faces of the bars in an axial direction thereof. The rotor core comprises at least one magnet insertion hole arranged on an inner peripheral side from the slots, and at least one permanent magnet embedded in the at least one magnet insertion hole. When a pole center axis is denoted as a d-axis and an axis deviating from the pole center axis by an electrical angle 90° is denoted as a q-axis, a flux content generated by the cage winding during start-up becomes maximal in the vicinity of and on one of the d-axis and the q-axis.

    摘要翻译: 自启动型永磁同步电动机包括定子和转子。 转子包括转子芯,其具有设置在其外周中的多个槽,以及笼式绕组,其包括嵌入槽中的导电棒和导电端环,使杆的两个端面上的导电棒沿轴向方向短路 其中。 所述转子铁芯包括至少一个设置在所述槽的内周侧的磁体插入孔,以及至少一个埋入所述至少一个磁体插入孔中的永磁体。 当磁极中心轴被表示为d轴,并且将偏离磁极中心轴的轴为90度的轴表示为q轴时,启动期间由笼式绕组产生的磁通量变为最大, d轴和q轴中的一个附近。

    Differential circuit with precisely controlled terminator circuit
    6.
    发明授权
    Differential circuit with precisely controlled terminator circuit 有权
    差分电路具有精确控制的终端电路

    公开(公告)号:US07843212B2

    公开(公告)日:2010-11-30

    申请号:US12073571

    申请日:2008-03-06

    申请人: Keiji Tanaka

    发明人: Keiji Tanaka

    IPC分类号: H03K17/16 H03K19/003

    摘要: The present invention provides a precisely controlled terminator circuit of a differential amplifier, in particular, for a differential amplifier of an optical receiver. The differential circuit, which receives a differential signal by a first input for the normal phase signal and a second input for an anti-phase signal, provides a terminator circuit comprises two resistors connected in serial between two inputs and two resistive connections each including a transistor and a resistor serially connected to the transistor and connected between respective inputs and the power supply line Vcc. The control unit, by receiving a medium potential of two resistors, provides a bias to two transistors so as to equalize the medium potential with the reference potential.

    摘要翻译: 本发明提供了一种差分放大器的精确控制的终端电路,特别是用于光接收机的差分放大器。 通过正相信号的第一输入端接收差分信号的差分电路和用于反相信号的第二输入端提供了一个终端电路,包括串联连接在两个输入端和两个电阻连接端之间的两个电阻器,每个电阻器包括晶体管 以及串联连接到晶体管并连接在各个输入端和电源线Vcc之间的电阻器。 控制单元通过接收两个电阻器的中等电位,向两个晶体管提供偏置,以便将介电电位与参考电位相等。

    PROCESS FOR PRODUCTION OF SURFACE-MODIFIED POLYMER STRUCTURES
    7.
    发明申请
    PROCESS FOR PRODUCTION OF SURFACE-MODIFIED POLYMER STRUCTURES 有权
    生产表面改性聚合物结构的方法

    公开(公告)号:US20100120984A1

    公开(公告)日:2010-05-13

    申请号:US12450778

    申请日:2008-04-23

    IPC分类号: C08L51/00 C08L41/00

    CPC分类号: C08J7/12 C08L101/005

    摘要: The present invention relates to a process for producing a polymer structure comprising: mixing and unifying a matrix polymer made of a linear polymer and a highly-branched polymer having hydrophilic functional groups at molecular ends and to form a structure containing the matrix polymer and the highly-branched polymer; and subjecting the obtained structure to either immersion in water and/or a hydrophilic solvent or exposure to an atmosphere of vapor of water and/or a hydrophilic solvent at a temperature ranging from a temperature lower than Tg of the matrix polymer by 30° C. to decomposition temperature of the matrix polymer; wherein the hydrophilic functional groups at the molecular ends of the highly-branched polymer are distributed in outermost surface of the polymer structure at an enhanced density. The present invention also relates to a process for producing a polymer structure in which vinyl polymer chains are grafted to at least a part of the hydrophilic functional groups.

    摘要翻译: 本发明涉及一种聚合物结构体的制造方法,其特征在于,在分子末端将由线性聚合物构成的基质聚合物和具有亲水性官能团的高支化聚合物混合均匀并形成含有基体聚合物的结构, 支链聚合物 并将得到的结构物浸入水和/或亲水性溶剂中或在低于基体聚合物的Tg的温度范围内暴露于水和/或亲水性溶剂的气体的气氛中30℃。 到基体聚合物的分解温度; 其中高度支化聚合物的分子末端的亲水官能团以增强的密度分布在聚合物结构的最外表面。 本发明还涉及其中乙烯基聚合物链接枝至至少一部分亲水官能团的聚合物结构的方法。

    Optical transceiver with frame ground and signal ground isolated with parallel plate capacitor
    8.
    发明授权
    Optical transceiver with frame ground and signal ground isolated with parallel plate capacitor 失效
    带有接地和信号接地隔离的平行板电容器的光收发器

    公开(公告)号:US07708473B2

    公开(公告)日:2010-05-04

    申请号:US12289034

    申请日:2008-10-17

    IPC分类号: G02B6/36

    摘要: A technique is disclosed for an optical transceiver, where the frame ground is electrically isolated from the signal ground in a low frequency region and is conducted in a high frequency region, without applying a capacitor as a substantial circuit component. The transceiver includes a TOSA whose housing is grounded with the FG and connected with the driver with a FPC board. On the FPC board is formed with a parallel plate capacitor, one conductive pattern on the one surface is connected with the housing of the TOSA, while the other pattern in the opposite surface is connected with the SG. This parallel plate capacitor isolates the FG from the SG in low frequencies, while conducts the FG with the SG in high frequencies.

    摘要翻译: 公开了一种用于光收发器的技术,其中框架地与低频区域中的信号地电隔离并且在高频区域中传导,而不施加电容器作为实质电路部件。 收发器包括TOSA,其外壳与FG接地,并与FPC板与驱动器连接。 在FPC基板上形成有平行平板电容器,一个表面上的一个导体图案与TOSA的外壳相连,而相反表面的另一个图案与SG连接。 这种平行电容器将FG与SG在低频下隔离,同时以高频率将SG与SG进行导通。

    OPTICAL RECEIVER APPLICABLE TO MULTIPLE TRANSMISSION SPEED
    9.
    发明申请
    OPTICAL RECEIVER APPLICABLE TO MULTIPLE TRANSMISSION SPEED 有权
    光接收机适用于多个传输速度

    公开(公告)号:US20100098437A1

    公开(公告)日:2010-04-22

    申请号:US12642015

    申请日:2009-12-18

    IPC分类号: H04B10/06

    CPC分类号: H04B10/66

    摘要: The present invention provides an optical receiver that enables to vary the sensitivity depending on the transmission speed. The optical receiver provides a photodiode to generate the photocurrent, the pre-amplifier to convert the photocurrent to the voltage signal, the lead pin to supply the bias voltage to the photodiode, and the control block to generate the switching signal for varying the current-to-voltage conversion efficiency and the frequency bandwidth of the pre-amplifier based on the control signal. The control signal is commonly provided from the lead pin through which the bias voltage is applied. The control block interprets the signal applied to the lead pin and generates the switching signal.

    摘要翻译: 本发明提供一种能够根据传输速度改变灵敏度的光接收机。 光接收器提供光电二极管以产生光电流,前置放大器将光电流转换为电压信号,引脚引脚将偏置电压提供给光电二极管,控制块产生开关信号, 基于控制信号的前置放大器的电压转换效率和频率带宽。 控制信号通常由施加偏置电压的引脚引脚提供。 控制块解释施加到引脚引脚的信号,并产生开关信号。

    OPTICAL RECEIVER ABLE TO PREVENT LOS ALARM FROM MALFUNCTIONING
    10.
    发明申请
    OPTICAL RECEIVER ABLE TO PREVENT LOS ALARM FROM MALFUNCTIONING 有权
    光接收器可以防止失灵报警

    公开(公告)号:US20100086315A1

    公开(公告)日:2010-04-08

    申请号:US12572794

    申请日:2009-10-02

    申请人: Keiji Tanaka

    发明人: Keiji Tanaka

    IPC分类号: H04B10/06

    CPC分类号: H04B10/07955 H04B2210/071

    摘要: An optical receiver able to generate the LOS alarm reliably is disclosed. The optical receiver module in the optical receiver provides a level monitor that monitors the average of the optical input, compares it with a reference and generates a decision signal that is provided to the squelching unit. The squelching unit, by receiving the decision signal, isolates the outputs of the output buffer from the inputs thereof and fixes the outputs of the receiver module in the level “0” or the level “1”. Even the main amplifier is coupled with the receiver optical module in the AC mode; no complicated response appears in the input of the main amplifier.

    摘要翻译: 公开了能够可靠地生成LOS报警的光接收机。 光接收器中的光接收器模块提供监视光输入的平均值的电平监视器,将其与参考值进行比较,并产生提供给静噪单元的判定信号。 压缩单元通过接收判定信号将输出缓冲器的输出与其输入隔离,并将接收器模块的输出固定在电平“0”或电平“1”。 即使主放大器与AC模式下的接收机光模块相连, 在主放大器的输入端不出现复杂的响应。