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185 条记录 (耗时 0.027 秒)

    Optical information recording medium
    54.
    发明授权
    Optical information recording medium 失效
    光信息记录介质

    公开(公告)号：US5305303A

    公开(公告)日：1994-04-19

    申请号：US765515

    申请日：1991-09-25

    申请人： Nobuo Akahira ,  Eiji Ohno ,  Kenichi Nishiuchi ,  Kenichi Nagata ,  Noboru Yamada

    发明人： Nobuo Akahira ,  Eiji Ohno ,  Kenichi Nishiuchi ,  Kenichi Nagata ,  Noboru Yamada

    IPC分类号： G11B7/00 ,  G11B7/24 ,  G11B7/30

    CPC分类号： G11B7/24 ,  Y10S430/146

    摘要： An optical information recording medium comprising: a substrate; a recording film in which an optically detectable amount is subjected to change; and at least one additional layer; the recording film and the additional layer being provided on the substrate; information being recorded by partially changing the recording film through irradiation of a laser beam thereto and being reproduced by optically detecting change of the optically detectable amount; the recording film being made of material assuming a plurality of states having different optical constants, respectively; physical conditions of the additional layer being selected such that a differential coefficient of the optically detectable amount relative to the optical con- stants is small in at least one of the states.

    摘要翻译： 一种光学信息记录介质，包括：基板; 其中可光学检测量经历变化的记录膜; 和至少一个附加层; 记录膜和附加层设置在基板上; 通过照射激光束部分地改变记录膜并通过光学检测光学可检测量的变化来再现信息; 记录膜分别由具有不同光学常数的多种状态的材料制成; 选择附加层的物理条件使得在至少一种状态下光学可检测量相对于光学常数的微分系数小。

    Method for determining optimum irradiation conditions in optical data recording
    55.
    发明授权
    Method for determining optimum irradiation conditions in optical data recording 失效
    用于确定光学数据记录中的最佳照射条件的方法

    公开(公告)号：US5305297A

    公开(公告)日：1994-04-19

    申请号：US668478

    申请日：1991-03-13

    申请人： Kenichi Nishiuchi ,  Eiji Ohno ,  Noboru Yamada ,  Nobuo Akahira

    发明人： Kenichi Nishiuchi ,  Eiji Ohno ,  Noboru Yamada ,  Nobuo Akahira

    IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/013 ,  G11B7/125 ,  G11B7/26 ,  G11B7/30 ,  G11B11/105 ,  G11B27/36

    CPC分类号： G11B7/126 ,  G11B27/36 ,  G11B7/00455 ,  G11B7/24085 ,  G11B11/1053 ,  G11B11/10595

    摘要： Before a signal is recorded on an optical disk, irradiations are made with plural light irradiation conditions of variable irradiation power or pulse width, optical conditions of irradiated portions are detected by detecting changes in the reflectivity or transmissivity or errors, and the optimum irradiation conditions are determined by comparing the detected results and the light irradiation conditions. In particular, by determining the optimum irradiation conditions in reference to the point where the change in reflectivity or transmissivity is greatest with respect to changes in the irradiation power, the optimum light irradiation conditions can be determined in a short time.

    摘要翻译： 在信号记录在光盘上之前，以可变照射功率或脉冲宽度的多个照射条件进行照射，通过检测反射率或透射率或误差的变化来检测照射部分的光学条件，最佳照射条件为 通过比较检测结果和光照条件来确定。 特别地，通过相对于照射功率的变化，反射率或透射率的变化最大的点来确定最佳的照射条件，可以在短时间内确定最佳光照射条件。

    Method for optically recording information and device for optically recording information by the same
    57.
    发明授权
    Method for optically recording information and device for optically recording information by the same 失效
    用于光学记录信息的方法和用于光学记录信息的装置

    公开(公告)号：US07088656B2

    公开(公告)日：2006-08-08

    申请号：US11058806

    申请日：2005-02-15

    申请人： Kenji Narumi ,  Tetsuya Akiyama ,  Kenichi Nishiuchi ,  Shigeaki Furukawa

    发明人： Kenji Narumi ,  Tetsuya Akiyama ,  Kenichi Nishiuchi ,  Shigeaki Furukawa

    IPC分类号： G11B5/09

    CPC分类号： G11B7/126 ,  G11B7/0045 ,  G11B11/1053 ,  G11B11/10595 ,  G11B19/04 ,  G11B20/10 ,  G11B20/1816 ,  G11B20/182 ,  G11B27/36 ,  G11B2220/216

    摘要： A method by which, in an optical disk recording and reproducing device, the time required for a test recording performed prior to an actual information recording can be reduced according to characteristics of an optical disk. A random pattern signal is transmitted from a random pattern signal generating circuit 3 and recorded on a test track on an optical disk 1, and a bit error rate of a reproduction signal is measured. Only when a value of the bit error rate is not less than a fixed value, test pattern signals are transmitted from a test pattern signal generating circuit 4 and recorded. An edge timing of a reproduction signal is measured by an edge timing detecting circuit 13. Based on a result of the measurement, edge positions of a front-end pulse and a back-end pulse are corrected.

    摘要翻译： 在光盘记录和再现装置中，可以根据光盘的特性减少在实际信息记录之前执行的测试记录所需的时间的方法。 从随机模式信号发生电路3发送随机模式信号并记录在光盘1上的测试轨道上，并测量再现信号的误码率。 只有当误码率的值不小于固定值时，才从测试模式信号发生电路4发送测试模式信号并进行记录。 通过边沿定时检测电路13测量再现信号的边缘定时。根据测量结果，校正前端脉冲和后端脉冲的边缘位置。

    Substrate for optical recording medium, optical recording medium, master disc, master disc recording apparatus, and signal generating apparatus
    58.
    发明授权
    Substrate for optical recording medium, optical recording medium, master disc, master disc recording apparatus, and signal generating apparatus 有权
    用于光学记录介质的基板，光学记录介质，母盘，母盘记录装置和信号发生装置

    公开(公告)号：US06661749B1

    公开(公告)日：2003-12-09

    申请号：US09702204

    申请日：2000-10-31

    申请人： Kenichi Nishiuchi ,  Shigeaki Furukawa ,  Tetsuya Akiyama

    发明人： Kenichi Nishiuchi ,  Shigeaki Furukawa ,  Tetsuya Akiyama

    IPC分类号： G11B700

    CPC分类号： G11B7/261 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0079

    摘要： A substrate for an optical recording medium, includes recording tracks formed in guide grooves on a disc; and an address section having an address pit sequence formed between the recording tracks in the guide grooves along an information reading direction of the recording tracks. The recording tracks in the guide grooves are divided into a prescribed number of zones. In each of the zones, the center of the address section corresponding to a recording track in the radially outermost or radially innermost guide groove is disposed so as to shift in a radial direction of the disc in relative relationship to the center of the recording track in the guide groove.

    摘要翻译： 一种用于光学记录介质的基片，包括形成在盘上的导槽中的记录道; 和地址部分，具有沿着记录轨道的信息读取方向形成在引导槽中的记录轨道之间的地址凹坑序列。引导槽中的记录轨道被划分成规定数量的区域。在每个区域中， 与径向最外侧或径向最内侧的导向槽中的记录轨迹相对应的地址部的中心配置成与导向槽中的记录轨迹的中心相对地相对于盘的径向移动。