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    OPTICAL DATA RECORDING METHOD
    2.
    发明公开
    OPTICAL DATA RECORDING METHOD 有权
    光学数据记录方法

    公开(公告)号：EP1466322A1

    公开(公告)日：2004-10-13

    申请号：EP03807986.9

    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： G11B7/00 ,  G11B7/125

    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 pulse-like light beam to an optical disc, so that a plurality of recording marks and spaces which have lengths corresponding to the plurality of recording modulation codes are formed on the optical disc, wherein at least two of the plurality of recording marks are formed by the light beam emitted according to a recording pulse train, the recording pulse train comprising: a first pulse which is disposed at a front and forms a leading edge of the recording mark, a last pulse which is disposed at a backend and forms a trailing edge of the recording mark, and a multi-pulse train which is disposed between the first pulse and the last pulse and forms a center of the recording mark, wherein the recording pulse train includes a multi-pulse area in which the multi-pulse train disposed, a position of at least one pulse of the recording pulse train in the multi-pulse area is set so that a multi-pulse duty is set at a predetermined value, the multi-pulse duty being obtained by dividing a pulse width of the multi-pulse train by a period of the multi-pulse train, and the multi-pulse train has a pulse period which is twice as large as a reference period T of the recording modulation code and a corresponding device.

    OPTICAL DATA RECORDING METHOD
    4.
    发明授权
    OPTICAL DATA RECORDING METHOD 有权
    光学数据记录方法

    公开(公告)号：EP1466322B1

    公开(公告)日：2007-09-05

    申请号：EP03807986.9

    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： G11B7/00 ,  G11B7/125

    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 pulse-like light beam to an optical disc, so that a plurality of recording marks and spaces which have lengths corresponding to the plurality of recording modulation codes are formed on the optical disc, wherein at least two of the plurality of recording marks are formed by the light beam emitted according to a recording pulse train, the recording pulse train comprising: a first pulse which is disposed at a front and forms a leading edge of the recording mark, a last pulse which is disposed at a backend and forms a trailing edge of the recording mark, and a multi-pulse train which is disposed between the first pulse and the last pulse and forms a center of the recording mark, wherein the recording pulse train includes a multi-pulse area in which the multi-pulse train disposed, a position of at least one pulse of the recording pulse train in the multi-pulse area is set so that a multi-pulse duty is set at a predetermined value, the multi-pulse duty being obtained by dividing a pulse width of the multi-pulse train by a period of the multi-pulse train, and the multi-pulse train has a pulse period which is twice as large as a reference period T of the recording modulation code and a corresponding device.

    OPTICAL DISK MEDIUM AND SIGNAL REPRODUCTION METHOD
    5.
    发明公开
    OPTICAL DISK MEDIUM AND SIGNAL REPRODUCTION METHOD 审中-公开
    OPTISCHE PLATTE UND SIGNALWIEDERGABEVERFAHREN

    公开(公告)号：EP1339050A1

    公开(公告)日：2003-08-27

    申请号：EP01976750.8

    申请日：2001-10-18

    申请人： Matsushita Electric Industrial Co., Ltd.

    发明人： FURUMIYA, Shigeru ,  NAKAMURA, Atsushi ,  ISHIBASHI, Hiromichi ,  ISHIDA, Takashi

    IPC分类号： G11B7/007 ,  G11B7/005 ,  G11B20/12 ,  G11B20/14

    CPC分类号： G11B7/24082 ,  G11B7/0053 ,  G11B7/007 ,  G11B7/0079 ,  G11B7/24038 ,  G11B7/261 ,  G11B27/19 ,  G11B27/24 ,  G11B27/3027 ,  G11B2220/20

    摘要： An optical disc medium according to the present invention includes at least one zone on which multiple track grooves are formed in a CAV format. Each of the track grooves has a wobbling structure made up of a fundamental wave having a single period. Information is recorded on the wobbling structure. In the at least one zone, the fundamental waves that make up the respective wobbling structures of mutually adjacent ones of the track grooves always have their phases shifted from each other by 90 degrees. As a result, the information recorded on the wobbling structure can be detected without being affected by crosstalk.

    摘要翻译： 根据本发明的光盘介质包括以CAV格式形成多个轨道槽的至少一个区域。 每个轨道槽具有由具有单个周期的基波构成的摆动结构。 信息记录在摆动结构上。 在至少一个区域中，构成相互相邻的轨道槽的相应摆动结构的基波总是具有彼此偏移90度的相位。 结果，可以检测记录在摆动结构上的信息，而不受串扰的影响。