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    OPTICAL DISC DEVICE, OPTICAL DISC AND OPTICAL DISC INSPECTION METHOD
    3.
    发明公开
    OPTICAL DISC DEVICE, OPTICAL DISC AND OPTICAL DISC INSPECTION METHOD 审中-公开
    光盘设备，用于测试光盘的光盘和方法

    公开(公告)号：EP2662858A1

    公开(公告)日：2013-11-13

    申请号：EP12732293.1

    申请日：2012-01-06

    Applicant: Mitsubishi Electric Corporation

    Inventor： NAKAI Kenya ,  OMAKI Masayuki

    IPC: G11B7/1263 ,  G11B7/005 ,  G11B7/007 ,  G11B7/126 ,  G11B7/1267 ,  G11B7/1392

    CPC classification number: G11B7/1263 ,  G11B7/1376 ,  G11B7/24065 ,  G11B7/268 ,  G11B2007/0006 ,  G11B2007/0013

    Abstract: An optical disc device uses an optical disc (6) capable of super-resolution reproduction, and includes a semiconductor laser (1), a laser driving circuit (21) that supplies a driving current to the semiconductor laser, a light receiving element (8) that detects return light from the optical disc (6) and obtains reproduction signal of recording data of the optical disc (6), and a light emission amount control means (22) that controls a light emission amount of the semiconductor laser (1) by the laser driving circuit (21) so as to keep a peak intensity of a focused light spot formed on an information recording layer of the optical disc 6 to be greater than or equal to a peak intensity at which a super-resolution effect is obtained. The light emission amount control means (22) controls a light emission amount of the semiconductor laser (1) by the laser driving circuit (21) based on a decrease rate D of a peak intensity of a focused light spot on an information recording layer of the optical disc (1) determined by an assumed disc tilt and a comatic aberration according to a thickness of a light transmitting layer of the optical disc (1), and a lower limit value Pld_L of a light emission amount at which a predetermined reproduction performance is obtained.

    Optical disc recording device
    7.
    发明公开
    Optical disc recording device 审中-公开
    一种光盘记录装置

    公开(公告)号：EP2549478A3

    公开(公告)日：2014-12-10

    申请号：EP12176832.9

    申请日：2012-07-18

    Applicant: Funai Electric Co., Ltd.

    Inventor： Ono, Takayuki

    IPC: G11B7/1267

    CPC classification number: G11B7/1267 ,  G11B7/00736 ,  G11B2007/0006 ,  G11B2007/0013

    Abstract: An optical disc recording device, wherein, during an OPC process addressing a write-once optical disc provided with only one or two recording layers, a recording power value of an optical pickup is changed within a range from (100-A)% of a reference recording power value to (100+B)% of the reference recording power value, and wherein, during an OPC process addressing a write-once optical disc provided with three or more recording layers of the same type as the aforementioned write-once optical disc, the recording power value of the optical pickup is changed within a range from (100-C)% of a reference recording power value to (100+D)% of the reference recording power value, D being set to be less than B.

    Optical disk recording device and optical disk recording method
    8.
    发明公开
    Optical disk recording device and optical disk recording method 审中-公开
    Aufzeichnungsvorrichtung mit optischer Platte und Aufzeichnungsverfahren mit optischer Platte

    公开(公告)号：EP2657937A2

    公开(公告)日：2013-10-30

    申请号：EP13163523.7

    申请日：2013-04-12

    Applicant: Funai Electric Co., Ltd.

    Inventor： Shimizu, Shinya ,  Mitsuda, Hiroshi

    IPC: G11B7/1267 ,  G11B20/10

    CPC classification number: G11B27/36 ,  G11B7/1267 ,  G11B20/10481 ,  G11B2020/1275 ,  G11B2220/2537

    Abstract: The present invention optimizes recording power based on correct β value. Whether an average of modulation values between the 2-4th AUNs is equal to or less than 65% of an average of modulation values between the 5-7th AUNs or not is judged. Otherwise, the gradual emission is performed, the β value is measured, and then the following requirement is judged: average of β values between 5 - 7 ⁢ th AUNs - average of β values between 2 - 4 ⁢ th AUNs ≥ 0.18 If each requirement is satisfied, track shift is judged to occur. The recording area of high output is compared with the recording area of lower output to judge whether or not magnitude relation matches the correct magnitude relation. Also, whether the difference between the β value of high output and the β value of lower output is equal to or more than the predetermined value (0.18) or not is judged.

    Abstract translation: 本发明基于正确的²值优化记录功率。 判断第2-4 AUN之间的调制值的平均值是否等于或小于第5-7 AUN之间的调制值的平均值的65％。 否则，进行逐渐排放，²值进行测量，然后判断以下要求：²值之间的平均值为5 - 7 ¢¢UN s²²²²²²‰‰‰‰‰‰‰‰‰‰‰‰0.18 0.18 如果满足每个要求，则判断轨迹偏移发生。 将高输出的记录区域与较低输出的记录区域进行比较，以判断大小关系是否与正确的大小关系相匹配。 此外，判断高输出值与²低输出值之间的差是否等于或大于预定值（0.18）。

    Optical disc recording device
    9.
    发明公开
    Optical disc recording device 审中-公开
    OptischesPlattenaufzeichnungsgerät

    公开(公告)号：EP2549478A2

    公开(公告)日：2013-01-23

    申请号：EP12176832.9

    申请日：2012-07-18

    Applicant: Funai Electric Co., Ltd.

    Inventor： Ono, Takayuki

    IPC: G11B7/1267

    CPC classification number: G11B7/1267 ,  G11B7/00736 ,  G11B2007/0006 ,  G11B2007/0013

    Abstract: An optical disc recording device, wherein, during an OPC process addressing a write-once optical disc provided with only one or two recording layers, a recording power value of an optical pickup is changed within a range from (100-A)% of a reference recording power value to (100+B)% of the reference recording power value, and wherein, during an OPC process addressing a write-once optical disc provided with three or more recording layers of the same type as the aforementioned write-once optical disc, the recording power value of the optical pickup is changed within a range from (100-C)% of a reference recording power value to (100+D)% of the reference recording power value, D being set to be less than B.

    Abstract translation: 一种光盘记录装置，其中在对仅设置有一个或两个记录层的一次写入光盘进行寻址的OPC处理期间，光学拾取器的记录功率值在（100-A）％的范围内变化， 参考记录功率值到参考记录功率值的（100 + B）％，并且其中在OPC处理期间寻址具有与上述一次写入光学相同类型的三个或更多个记录层的一次写入光盘 光盘拾取器的记录功率值在参考记录功率值的（100-C）％到参考记录功率值的（100 + D）％的范围内变化，D设定为小于B 。

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