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    Light emitting module and optical pickup apparatus and method employing the same
    1.
    发明授权
    Light emitting module and optical pickup apparatus and method employing the same 有权
    发光模块和光拾取装置及其采用方法

    公开(公告)号：US07450476B2

    公开(公告)日：2008-11-11

    申请号：US10983902

    申请日：2004-11-09

    申请人： Bong-Gi Kim ,  Do-Hoan Nam ,  Chun-Seong Park ,  Mun-Whan Lee

    发明人： Bong-Gi Kim ,  Do-Hoan Nam ,  Chun-Seong Park ,  Mun-Whan Lee

    IPC分类号： G11B7/00

    CPC分类号： G11B7/1359 ,  G11B7/127 ,  G11B7/1365 ,  G11B7/1398

    摘要： A light emitting module and method and an optical pickup apparatus employing the same are provided. The light emitting module includes a base, a semiconductor laser that is disposed on the base and emits a laser beam of a predetermined wavelength, a cap surrounding the semiconductor laser, a beam shaping window that is fitted with a predetermined portion of the cap corresponding to the propagation path of the laser beam and shapes a transmitted laser beam while reflecting a portion of an incident beam, and a quarter wave plate that is disposed in the propagation path of the laser beam and in front of the beam shaping window and transforms a laser beam horizontally polarized after passing through the beam shaping window into a circularly polarized beam while converting a beam reflected from an optical disc into a vertically polarized beam.

    摘要翻译： 提供了一种发光模块和方法以及采用该发光模块和方法的光学拾取装置。 发光模块包括基座，设置在基座上并发射预定波长的激光束的半导体激光器，围绕半导体激光器的帽，光束整形窗口，其与帽子的预定部分相配合 激光束的传播路径，并且在反射入射光束的一部分的同时对透射的激光束进行成形，以及四分之一波片，其设置在激光束的传播路径中并在光束整形窗口的前面，并且转换激光 在将从光盘反射的光束转换成垂直偏振光束之后，在通过光束整形窗口之后水平极化的光束变成圆偏振光束。

    Light emitting module and optical pickup apparatus and method employing the same
    2.
    发明申请
    Light emitting module and optical pickup apparatus and method employing the same 有权
    发光模块和光拾取装置及其采用方法

    公开(公告)号：US20050117500A1

    公开(公告)日：2005-06-02

    申请号：US10983902

    申请日：2004-11-09

    申请人： Bong-Gi Kim ,  Do-Hoan Nam ,  Chun-Seong Park ,  Mun-Whan Lee

    发明人： Bong-Gi Kim ,  Do-Hoan Nam ,  Chun-Seong Park ,  Mun-Whan Lee

    IPC分类号： G11B7/00 ,  G11B7/125 ,  G11B7/135

    CPC分类号： G11B7/1359 ,  G11B7/127 ,  G11B7/1365 ,  G11B7/1398

    摘要： A light emitting module and method and an optical pickup apparatus employing the same are provided. The light emitting module includes a base, a semiconductor laser that is disposed on the base and emits a laser beam of a predetermined wavelength, a cap surrounding the semiconductor laser, a beam shaping window that is fitted with a predetermined portion of the cap corresponding to the propagation path of the laser beam and shapes a transmitted laser beam while reflecting a portion of an incident beam, and a quarter wave plate that is disposed in the propagation path of the laser beam and in front of the beam shaping window and transforms a laser beam horizontally polarized after passing through the beam shaping window into a circularly polarized beam while converting a beam reflected from an optical disc into a vertically polarized beam.

    摘要翻译： 提供了一种发光模块和方法以及采用该发光模块和方法的光学拾取装置。 发光模块包括基座，设置在基座上并发射预定波长的激光束的半导体激光器，围绕半导体激光器的帽，光束整形窗口，其与帽子的预定部分相配合 激光束的传播路径，并且在反射入射光束的一部分的同时对透射的激光束进行成形，以及四分之一波片，其设置在激光束的传播路径中并在光束整形窗口的前面，并且转换激光 在将从光盘反射的光束转换成垂直偏振光束之后，在通过光束整形窗口之后水平极化的光束变成圆偏振光束。

    Noise restraining semiconductor memory device
    6.
    发明授权
    Noise restraining semiconductor memory device 失效
    抑制噪声的半导体存储器件

    公开(公告)号：US5898624A

    公开(公告)日：1999-04-27

    申请号：US969466

    申请日：1997-11-13

    申请人： Chun-Seong Park

    发明人： Chun-Seong Park

    IPC分类号： G11C11/413 ,  G11C7/00 ,  G11C7/10 ,  G11C7/22

    CPC分类号： G11C7/1057 ,  G11C7/1051 ,  G11C7/22

    摘要： A noise restraining semiconductor memory device includes a memory cell array for outputting through a data line a complementary cell data signal selected in accordance with an input address signal, an output controller for combining a data output enable signal and a Y address latch signal and generating a data output control signal, and an output buffer for buffering and outputting to an input/output pin a data signal outputted from the memory cell array in accordance with the output control signal outputted from the output controller. The memory device makes an operation start time of the output buffer delayed later than a time point in which an output data signal of the memory cell is latched to an input terminal of the output buffer, thereby excluding ground noise.

    摘要翻译： 抑制噪声的半导体存储器件包括用于通过数据线输出根据输入地址信号选择的互补单元数据信号的存储单元阵列，用于组合数据输出使能信号和Y地址锁存信号的输出控制器， 数据输出控制信号，以及输出缓冲器，用于根据从输出控制器输出的输出控制信号缓冲并向输入/输出引脚输出从存储单元阵列输出的数据信号。 存储器件使输出缓冲器的操作开始时间延迟到存储器单元的输出数据信号被锁存到输出缓冲器的输入端的时间点，从而排除接地噪声。