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34 条记录 (耗时 0.018 秒)

    Optical information recording employing improved recording power control scheme
    31.
    发明授权
    Optical information recording employing improved recording power control scheme 有权

    公开(公告)号：US06781105B2

    公开(公告)日：2004-08-24

    申请号：US10465639

    申请日：2003-06-20

    申请人： Kenya Yokoi

    发明人： Kenya Yokoi

    IPC分类号： G02B704

    CPC分类号： G11B7/126 ,  G11B7/0045

    摘要： A disk apparatus performs optical recording onto an optical disk with a record mark by using a light beam modulated in a manner of multi-pulse series, includes. A detection pulse generating part generates a detection pulse to replace the multi-pulse series; and a detection power control part controls the power of the detection pulse to be smaller than the power of the multi-pulse series.

    Optical recording and reproducing methods for optical disk
    32.
    发明授权
    Optical recording and reproducing methods for optical disk 有权
    光盘的光学记录和再现方法

    公开(公告)号：US06487149B1

    公开(公告)日：2002-11-26

    申请号：US09413861

    申请日：1999-10-07

    申请人： Kenya Yokoi ,  Akihiko Shimizu ,  Hiroshi Koide

    发明人： Kenya Yokoi ,  Akihiko Shimizu ,  Hiroshi Koide

    IPC分类号： G11B509

    CPC分类号： G11B7/131 ,  G11B7/00456 ,  G11B7/0053 ,  G11B7/0906 ,  G11B7/1267 ,  G11B7/24085

    摘要： An optical recording method for an optical disk having a disk surface portion in which prepits, indicative of preformat information, are formed. In the optical recording method, a portion of a data signal which matches one of the prepits and corresponds to a write mark radially adjacent to one of the prepits is detected. Marks are recorded along a track of the disk by selectively using one of an optimal recording power and a proper recording power level, in accordance with the non-match portion or the match portion of the data signal. A radial width of the marks recorded in accordance with the match portion of the data signal is smaller than a radial width of the marks recorded in accordance with the non-match portion of the data signal. An optical reproducing method is adapted to accurately detect a wobble signal and a prepit signal from the optical disk to which data is recorded by the above optical recording method. Further, a wobble/prepit detection method for optical recording and reproduction is adapted to accurately detect the wobble signal and the prepit signal from the optical disk.

    摘要翻译： 一种具有光盘表面部分的光盘的光学记录方法，其中形成了表示预格式化信息的预凹坑。 在光学记录方法中，检测与一个预凹坑匹配并对应于与其中一个预凹坑径向相邻的写入标记的数据信号的一部分。 根据数据信号的不匹配部分或匹配部分，通过选择性地使用最佳记录功率和适当的记录功率电平中的一个，沿着盘的轨道记录标记。 根据数据信号的匹配部分记录的标记的径向宽度小于根据数据信号的不匹配部分记录的标记的径向宽度。 光学再现方法适用于通过上述光学记录方法准确地检测来自记录了数据的光盘的摆动信号和预凹坑信号。 此外，用于光学记录和再现的摆动/预坑检测方法适于精确地检测来自光盘的摆动信号和预凹坑信号。

    Liquid crystal display device with dielectric anisotropy
    33.
    发明授权
    Liquid crystal display device with dielectric anisotropy 失效
    具有介电各向异性的液晶显示装置

    公开(公告)号：US5056896A

    公开(公告)日：1991-10-15

    申请号：US400012

    申请日：1989-08-29

    申请人： Haruo Iimura ,  Yasuyuki Takiguchi ,  Akihiko Kanemoto ,  Kenya Yokoi ,  Takamichi Enomoto

    发明人： Haruo Iimura ,  Yasuyuki Takiguchi ,  Akihiko Kanemoto ,  Kenya Yokoi ,  Takamichi Enomoto

    IPC分类号： G02F1/13363 ,  G02F1/139

    CPC分类号： G02F1/13363 ,  G02F1/1397 ,  G02F2001/133635 ,  G02F2413/08

    摘要： Disclosed herein is a liquid crystal display device comprising (1) a liquid crystal cell wherein a liquid crystal layer comprising a liquid crystal component having positive dielectric anisotropy is sandwiched between a pair of substrates having at least one electrode, (2) a pair of polarizers arranged to sandwich the liquid crystal layer therebetween and (3) a birefringence layer provided between the liquid crystal layer and the polarizer on at least one side of the liquid crystal layer, wherein the angle formed between the maximum refractive index direction in the birefringence layer face and the direction of transmission axis or absorption axis of polarizer adjacent to the birefringence layer is not more than 5.degree..

    摘要翻译： 本发明公开了一种液晶显示装置，包括：（1）液晶单元，其中将包含具有正介电各向异性的液晶分量的液晶层夹在具有至少一个电极的一对基板之间，（2）一对偏振器 布置成将液晶层夹在其间并且（3）在液晶层的至少一个侧面上设置在液晶层和偏振片之间的双折射层，其中在双折射层面的最大折射率方向 与双折射层相邻的偏振片的透射轴或吸收轴的方向不大于5°。