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    Optical data recording method
    1.
    发明公开
    Optical data recording method 有权
    光学数据记录方法

    公开(公告)号：EP1783754A2

    公开(公告)日：2007-05-09

    申请号：EP07101099.5

    申请日：2003-10-09

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Shoji, Mamoru ,  Koishi, Kenji ,  Nakamura, Atsushi ,  Ishida, Takashi ,  Tasaka, Shuichi

    IPC分类号： G11B7/0045 ,  G11B7/013

    CPC分类号： G11B7/24085 ,  G11B7/00456 ,  G11B11/10506 ,  G11B11/1053

    摘要： An optical data recording method comprising the steps of: modulating data to be recorded, to generate a plurality of recording modulation codes, and emitting a pulsed light beam to an optical disc, so that predefined and selectable recording marks and spaces are recorded on the disc, the lengths of the recording marks and spaces being defined by the modulated data, wherein at least two of the plurality of the recording marks comprise: a first pulse which is disposed at the front and forms the leading edge of the recording mark; a last pulse which is disposed at the backend and forms the trailing edge of the recording mark; and a multi-pulse train which is disposed between the first pulse and the last pulse and forms the center of the recording mark, the multi-pulse train having a pulse period longer than T, T representing a reference period of the recording modulation code; the number of pulses in each of the recording marks is increased by one as the recording mark is increased in length by 2T, characterized in that the recording marks have different lengths differing by T or multiples thereof, and the shortest recording mark and the second shortest recording mark are constituted by a single pulse, and a corresponding device.

    摘要翻译： 一种光学数据记录方法，包括以下步骤：调制要记录的数据，产生多个记录调制码，并将脉冲光束发射到光盘上，从而在光盘上记录预定和可选择的记录标记和间隔 所述记录标记和间隔的长度由所述调制数据限定，其中，所述多个记录标记中的至少两个记录标记包括：第一脉冲，其布置在前方并且形成所述记录标记的前沿; 最后一个脉冲位于后端并形成记录标记的后沿; 以及设置在第一脉冲和最后脉冲之间并形成记录标记中心的多脉冲串，该多脉冲串具有比T更长的脉冲周期，T代表记录调制码的参考周期; 当记录标记长度增加2T时，每个记录标记中的脉冲数量增加1，其特征在于记录标记具有不同的长度，其长度不同于T或其倍数，并且最短记录标记和第二最短记录标记 记录标记由单个脉冲构成，并由相应的装置构成。

    Reproduction apparatus for optical disk
    6.
    发明公开
    Reproduction apparatus for optical disk 失效
    用于光盘再现装置

    公开(公告)号：EP1049078A2

    公开(公告)日：2000-11-02

    申请号：EP00113179.6

    申请日：1997-04-09

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Koishi, Kenji ,  Ohara, Shunji ,  Ishida, Takashi ,  Satoh, Isao ,  Takemura, Yoshinari ,  Gushima, Toyoji ,  Deguchi, Hironori ,  Mitui, Yoshitaka

    IPC分类号： G11B7/00 ,  G11B7/007

    CPC分类号： G11B7/24085 ,  G11B7/0053 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0079 ,  G11B7/0906 ,  G11B20/1426 ,  G11B27/19 ,  G11B27/24 ,  G11B27/3027 ,  G11B2020/1259 ,  G11B2220/2562

    摘要： An optical disk has a rewritable first recording area and a read-only second recording area. The first recording area includes first tracks composed of groove tracks and land tracks formed on an optical disk substrate alternately in a spiral or concentric shape. Each of the first tracks is divided into a plurality of first sectors, and each of the first sectors includes a first header region having identification data for identifying the first sector and a first data region for recording user data by forming recording marks by changing optical characteristics of a recording surface. The second data recording area includes second tracks formed with physical concave and convex shaped pit rows arranged on the optical disk substrate in a spiral or concentric shape. Each of the second tracks is divided into a plurality of second sectors, and each of the second sectors includes a second header region having identification data for identifying the second sector and a second data region having read-only data recorded as the pit rows. The first header region includes a physical concave and convex shaped first pit row. Each pit of the first pit row has a width in a radial direction of the optical disk substantially equal to a width of the groove track and is wobbled outward or inward from a center line of the groove track by about a quarter of a pitch of the groove track. The second header region includes a physical concave and convex shaped second pit row. Each pit of the second pit row has a width in the radial direction of the optical disk smaller than the width of the groove track and is formed substantially along the center line of the second track.