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6 条记录 (耗时 0.013 秒)

    Optical recording media
    3.
    发明授权
    Optical recording media 失效
    光记录媒体

    公开(公告)号：US5196231A

    公开(公告)日：1993-03-23

    申请号：US848595

    申请日：1992-03-09

    申请人： Sumio Hirose ,  Shigeru Takahara ,  Tadashi Koike ,  Shin Aihara ,  Keiji Ueno

    发明人： Sumio Hirose ,  Shigeru Takahara ,  Tadashi Koike ,  Shin Aihara ,  Keiji Ueno

    IPC分类号： G11B7/244 ,  G11B7/245

    CPC分类号： G11B7/245 ,  G11B7/244 ,  G11B7/247 ,  G11B7/248 ,  G11B7/249

    摘要： Disclosed are optical recording media, each of which is composed of a substrate and a recording layer formed on the substrate. The recording layer includes an organic-dye-containing layer and an organopolysiloxane resin layer formed by the condensation of a trifunctional silane represented by R.sup.1 Si(OR.sup.2).sub.3-n (X).sub.n and a tetrafunctional silane represented by Si(OR.sup.3).sub.4-m (X).sub.m, wherein R.sup.1, R.sup.2 and R.sup.3 individually represent an alkyl or aryl group, X a hydroxyl group or a halogen atom, and n and m 0, 1, 2 or 3 and 0, 1, 2, 3 or 4, respectively.

    摘要翻译： 公开了光记录介质，每个光记录介质由基板和形成在基板上的记录层组成。 记录层包括含有机染料的层和通过由R1Si（OR2）3-n（X）n表示的三官能硅烷与Si（OR 3）4-m表示的四官能硅烷缩合形成的有机聚硅氧烷树脂层 （X）m，其中R1，R2和R3各自表示烷基或芳基，X为羟基或卤素原子，n和m为0,1,2或3和0,1,2,3或4， 分别。

    Optical recording medium and process for fabricating the same
    4.
    发明授权
    Optical recording medium and process for fabricating the same 失效
    光记录介质及其制造方法

    公开(公告)号：US4977064A

    公开(公告)日：1990-12-11

    申请号：US187467

    申请日：1988-04-28

    申请人： Hiroshi Sukawa ,  Sumio Hirose ,  Shigeru Takahara ,  Tomoyoshi Sasakawa

    发明人： Hiroshi Sukawa ,  Sumio Hirose ,  Shigeru Takahara ,  Tomoyoshi Sasakawa

    IPC分类号： G11B7/24 ,  G11B7/244 ,  G11B7/248

    CPC分类号： G11B7/244 ,  G11B7/24 ,  G11B7/248 ,  Y10S430/146

    摘要： This invention relates to an optical recording medium characterized by high sensitivity, high stability, etc, and a process for making the optical recording medium. Specifically, the present invention provides an optical recording medium composed of a transparent substrate having prepits and/or pregrooves for system control signals and first and second recording layers formed thereon in order, the both layers having individually a specific reflectance, transmittance and absorbance. To the optical recording medium, a laser beam is irradiated on the transparent substrate side to record or read out information and, by detecting the variation of the amount of light as a sum of the reflected light from the boundary between the first recording layer and the substrate and the reflected light from the boundary between the second recording layer and the air, the system control signals are primarily obtained from the prepits and/or pregrooves. Regarding the two recording layers, the first recording layer contains an organic dye having a transmittance of 10-50% and an absorbance of 40% or more against the wavelength of a laser beam used for writing while the second recording layer contains an organic dye having an absorbance of 20% or less and a reflectance of 25% or more at the air boundary at the wavelength region of the laser beam.The optical recording medium can be made in accordance with the process of the present invention wherein (a) a transparent substrate having prepits and/or pregrooves for system control signals is provided, (b) two kinds of solution are prepared by allowing two organic dyes each soluble exclusively in either a low-polar solvent or else a high-polar solvent to dissolve in the respective counterpart solvent, and (c) the two kinds of dye solution are applied on the transparent substrate in series to form the first recording layer and the second recording layer.

    Diversity receiving system of in-phase combination type
    6.
    发明授权
    Diversity receiving system of in-phase combination type 失效
    同相组合型分集接收系统

    公开(公告)号：US4752941A

    公开(公告)日：1988-06-21

    申请号：US943223

    申请日：1986-12-18

    申请人： Shigeru Takahara ,  Masaharu Morisaki

    发明人： Shigeru Takahara ,  Masaharu Morisaki

    IPC分类号： H04B7/02 ,  H04B7/08 ,  H04L1/02

    CPC分类号： H04B7/084

    摘要： A receiver adapted for in-phase combining of plural received signals includes a phase shift circuit for adjusting the phase of at least one of the received signals. The phase shift circuit is controlled by a phase control circuit which operates in response to variances detected in the gain control voltage of an AGC amplifier which follows the signal combiner of the receiver.

    摘要翻译： 适于多个接收信号的同相组合的接收机包括用于调整至少一个接收信号的相位的相移电路。 相移电路由相位控制电路控制，该相位控制电路响应于在接收器的信号组合器之后的AGC放大器的增益控制电压中检测到的方差而工作。