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    • 3. 发明申请
    • HIGH-DENSITY RECORDING MEDIUM AND RECORDING AND/OR REPRODUCING DEVICE THEREFOR
    • 高密度记录介质和记录和/或再现设备
    • WO2004107332A1
    • 2004-12-09
    • PCT/KR2004/001321
    • 2004-06-03
    • LG Electronics Inc.KIM, Jin YongPARK, Kyung Chan
    • KIM, Jin YongPARK, Kyung Chan
    • G11B7/24
    • G11B23/0035G11B7/121
    • Disclosed herein are a high-density recording medium, such as a high-density optical disc and a recording and/or reproducing device therefor. At a transition area of the high-density optical disc allocated between a clamping area and an information area of the high-density optical disc is formed a step having a prescribed slope so that the high-density optical disc does not collide with an objective lens of an optical pickup provided in an optical disc device although the objective lens of the optical pickup is upwardly moved toward a recording layer of the high-density optical disc until it moves to the maximum working distance when the high-density optical disc, such as a Blu-ray disc, is improperly placed on a turntable provided in the optical disc device, e.g., when the high-density optical disc is placed upside down on the turntable. The thickness of the information area is smaller than that of the clamping area by the provision of the step at the transition area. Consequently, damage to the high-density optical disc or the objective lens due to a collision of the objective lens with the high-density optical disc is prevented, and fatal errors of a servo operation are effectively prevented. Furthermore, the cost of materials required to manufacture the high-density optical disc is reduced while stable clamping force is maintained, and safe insertion of the high-density optical disc into a slot-type optical disc drive is possible.
    • 这里公开了高密度记录介质,例如高密度光盘及其记录和/或再现装置。 在分配在高密度光盘的夹持区域和信息区域之间的高密度光盘的过渡区域形成具有规定斜率的步骤,使得高密度光盘不与物镜碰撞 设置在光盘装置中的光学拾取器,尽管当高密度光盘如高密度光盘移动到最大工作距离时,光学拾取器的物镜朝向高密度光盘的记录层向上移动, 蓝光盘不适当地放置在设置在光盘装置中的转盘上,例如当高密度光盘被倒置放置在转台上时。 通过在过渡区域提供步骤,信息区域的厚度小于夹紧区域的厚度。 因此,防止了由于物镜与高密度光盘的碰撞而对高密度光盘或物镜造成的损坏,从而有效地防止了伺服操作的致命错误。 此外,制造高密度光盘所需的材料的成本降低,同时保持稳定的夹持力,并且可以将高密度光盘安全插入槽式光盘驱动器。
    • 6. 发明申请
    • MULTI-LAYER DISC
    • 多层盘
    • WO2006049452A1
    • 2006-05-11
    • PCT/KR2005/003712
    • 2005-11-04
    • LG Electronics Inc.KIM, Jin YongPARK, Kyung Chan
    • KIM, Jin YongPARK, Kyung Chan
    • G11B7/24
    • G11B7/24038G11B7/26
    • A multi-layer disc is disclosed which includes a plurality of recording layers, as in a dual layer blu-ray disc. In the multi- layer disc, the tolerance of a transparent substrate thickness from a surface of a cover layer to each recording layer is set to be different from those of transparent substrate thicknesses to other recording layers within a range in which no degradation in the characteristics of recording and reproduction signals for each recording layer occurs. Accordingly, it is possible to more efficiently manufacture multi -layer discs, to achieve an improvement in the manufacturing yield of multi-layer discs, and to achieve a reduction in the manufacturing costs of multi-layer discs.
    • 公开了一种多层盘,其包括多个记录层,如在双层蓝光盘中。 在多层盘中,将透明基板厚度从覆盖层的表面到每个记录层的公差设置为与其它记录层的透明基板厚度的不同在于其特性不劣化的范围内 发生每个记录层的记录和再现信号。 因此,可以更有效地制造多层盘,实现多层盘的制造成品率的提高,实现多层盘的制造成本的降低。
    • 8. 发明申请
    • DISC CARTRIDGE
    • 盘盒
    • WO2005027129A1
    • 2005-03-24
    • PCT/KR2004/002334
    • 2004-09-14
    • LG ELECTRONICS INC.KIM, Jin, YongPARK, Kyung, ChanLIM, Hyung, JunEOM, In, SeopKIM, Ji, Duk
    • KIM, Jin, YongPARK, Kyung, ChanLIM, Hyung, JunEOM, In, SeopKIM, Ji, Duk
    • G11B23/03
    • G11B23/0317G11B23/0308
    • The present invention discloses a disc cartridge for easy mounting/dismounting of a disc (10) to/from the disc cartridge. The present invention provides a disc cartridge including a lower housing (100a, 100b, 100c, 100d, or 100e) having a window (101a, 101b, 101c, 101d, or 101e0 for a recorder or a reader to access to a read-out surface of the disc (10), and an upper housing (200a, 200b, 200c, 200d, or 200e) secured to the lower housing (100a, 100b, 100c, 100d, or 100e) for holding the disc (10) between the lower housing (100a, 100b, 100c, 100d, or 100e) and the upper housing (200a, 200b, 200c, 200d, or 200e) such that the disc (10) can be taken out therefrom, the upper housing (200a, 200b, 200c, 200d, or 200e) having at least a portion configured movable for securing a space for taking out the disc (10) therethrough.
    • 本发明公开了一种用于容易地将盘(10)安装/从盘盒卸载的盘盒。 本发明提供一种盘盒,其包括具有窗口(101a,101b,101c,101d或101e0,用于记录器或读取器)的下壳体(100a,100b,100c,100d或100e) 以及固定到下壳体(100a,100b,100c,100d或100e)的上壳体(200a,200b,200c,200d或200e),用于将盘(10)保持在所述盘 下壳体(100a,100b,100c,100d或100e)和上壳体(200a,200b,200c,200d或200e),使得盘(10)能够从其中取出,上壳体(200a,200b) ,200c,200d或200e),其具有至少一部分,所述至少一部分可移动以固定用于从其中取出所述盘(10)的空间。
    • 10. 发明申请
    • HIGH-DENSITY DISK RECORDING MEDIUM AND A DRIVING METHOD THEREOF
    • 高密度磁盘记录介质及其驱动方法
    • WO2004025634A1
    • 2004-03-25
    • PCT/KR2003/001859
    • 2003-09-09
    • LG ELECTRONICS INC.KIM, Jin YongPARK, Kyung Chan
    • KIM, Jin YongPARK, Kyung Chan
    • G11B7/085
    • G11B7/0945G11B7/00736G11B7/08511
    • The present invention relates to a disk driving method to prevent collision of an optical pickup's objective lens with a high-density disk such as a blu-ray disk in the event that the disk is placed upside down in a disk device. In the present invention, a focusing operation for a lead-in area of the disk is conducted first when it is placed. While focusing operation is conducted a first signal produced by a reflected beam from the surface of the disk is detected. If a second signal produced by a reflected beam from a recording layer of the disk is not detected within a preset time after the first signal is detected, the focusing operation is stopped immediately to prevent collision of an optical pickup's objective lens with a high-density disk.
    • 盘驱动方法技术领域本发明涉及一种盘驱动方法,用于在盘被倒置放置在盘装置中的情况下防止光学拾取器物镜与蓝光盘等高密度盘的碰撞。 在本发明中,当放置盘时,首先进行对盘的导入区域的聚焦操作。 当进行聚焦操作时,检测由来自盘表面的反射光束产生的第一信号。 如果在检测到第一信号之后的预设时间内没有检测到来自盘的记录层的反射光束产生的第二信号,则立即停止聚焦操作,以防止光学拾取器的物镜与高密度 磁盘。