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    Optical information recording/reproducing system
    2.
    发明公开
    Optical information recording/reproducing system 失效
    系统zur optischen Aufzeichnung und Wiedergabe von信息。

    公开(公告)号：EP0643387A1

    公开(公告)日：1995-03-15

    申请号：EP94114073.3

    申请日：1994-09-08

    申请人： NIPPON CONLUX CO., LTD.

    发明人： Yamazaki, Koichi ,  Nakamura, Eiichi ,  Yoshida, Hiroaki

    IPC分类号： G11B7/09 ,  G11B7/007

    CPC分类号： G11B7/24079 ,  G11B7/0033 ,  G11B7/0903

    摘要： A high-density recording medium has data tracks and guide tracks formed on both sides of each of the data tracks. Intervals between the guide tracks are set in such a manner that the outer edges of two adjacent guide tracks correspond in position to two tracking laser beam spots on the recording medium. To allow use of either of the high-density recording medium, and a conventional recording medium on which intervals between guide tracks are set in such a manner that the inner edges of two adjacent guide tracks correspond in position to two tracking laser beam spots, control is performed such that polarity of a tracking control servo is selectively inverted depending upon which of the high-density and conventional recording medium is used.

    摘要翻译： 高密度记录介质具有形成在每个数据轨迹两侧的数据轨迹和导轨。 引导轨道之间的间隔设置成使得两个相邻引导轨道的外边缘在位置上对应于记录介质上的两个跟踪激光束斑点。 为了允许使用高密度记录介质和传统记录介质之一，其中导轨之间的间隔被设置成使得两个相邻引导轨道的内边缘在位置对应于两个跟踪激光束点，控制 执行使得跟踪控制伺服的极性根据使用高密度和常规记录介质的哪一个而被选择性地反转。

    Method of and apparatus for optical recording and reproducing of information
    4.
    发明公开
    Method of and apparatus for optical recording and reproducing of information 失效
    Verfahren undGerätzum optischen Aufzeichnen und Wiedergabe von信息

    公开(公告)号：EP0718830A1

    公开(公告)日：1996-06-26

    申请号：EP95119692.2

    申请日：1995-12-14

    申请人： NIPPON CONLUX CO., LTD.

    发明人： Noda, Kazuo ,  Yamazaki, Koichi ,  Yoshida, Hiroaki

    IPC分类号： G11B7/00 ,  G11B7/125

    CPC分类号： G11B7/126 ,  G11B7/0033 ,  G11B7/0045 ,  G11B7/005

    摘要： Information is recorded or reproduced by moving a recording medium (1) relative to an optical head (7). In order to execute information recording onto the medium (1) in the course of the relative movement involving acceleration and deceleration, the generation timing and intensity of a light beam to be generated in correspondence with the information to be recorded are controlled in response to a varying speed of the relative movement so that data pits to be formed in the recording medium can be standardized in pitch and size irrespective of the relative movement speed (SDP). Also, in order to permit information reproduction from the medium (1) in the course of the relative movement involving acceleration and deceleration, reproduction timing of data read by the optical head (7) is set in synchronism with variation in the relative movement speed (SDP) so that the data can be reproduced at proper timing irrespective of the relative movement speed.

    摘要翻译： 通过相对于光学头（7）移动记录介质（1）来记录或再现信息。 为了在涉及加速和减速的相对运动的过程中执行在介质（1）上的信息记录，将响应于要记录的信息来控制与要记录的信息相对应地生成的光束的产生定时和强度 相对运动的变化速度，使得可以在间距和尺寸上标准化记录介质中形成的数据凹坑，而与相对移动速度（SDP）无关。 此外，为了在涉及加速和减速的相对运动的过程中允许从介质（1）的信息再现，由光头（7）读取的数据的再现定时与相对移动速度的变化（ SDP），使得可以在适当的时间再现数据，而不管相对移动速度如何。