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    OPTICAL RECORDING MEDIUM HAVING READ-ONLY STORAGE AREA AND WRITEABLE STORAGE AREA AND RECORDING/REPRODUCING APPARATUS AND METHOD THEREFOR
    21.
    发明申请
    OPTICAL RECORDING MEDIUM HAVING READ-ONLY STORAGE AREA AND WRITEABLE STORAGE AREA AND RECORDING/REPRODUCING APPARATUS AND METHOD THEREFOR 审中-公开
    具有只读存储区域和可写入存储区域的记录/记录装置及其方法的光记录介质

    公开(公告)号：US20080123491A1

    公开(公告)日：2008-05-29

    申请号：US12019115

    申请日：2008-01-24

    申请人： In-sik Park ,  Jung-wan Ko ,  Kyung-geun Lee ,  Byoung-ho Choi ,  Jung-kwon Heo ,  Byung-jun Kim ,  Tae-yong Doh

    发明人： In-sik Park ,  Jung-wan Ko ,  Kyung-geun Lee ,  Byoung-ho Choi ,  Jung-kwon Heo ,  Byung-jun Kim ,  Tae-yong Doh

    IPC分类号： G11B7/24 ,  G11B27/36

    CPC分类号： G11B27/105 ,  G11B7/00736 ,  G11B7/24038 ,  G11B20/1258 ,  G11B27/034 ,  G11B27/322 ,  G11B2020/1247 ,  G11B2020/1248 ,  G11B2220/211 ,  G11B2220/2562

    摘要： An optical recording medium having a read-only storage area and a writable storage area and a recording/reproducing apparatus and method therefore. The optical recording medium is a hybrid disc having both the read-only storage area, which is suitable for mass production of information having the same contents, and the writable storage area on which data can be recorded, updated or added at a user's option. The read-only storage area has a structure that is completely compatible with a digital versatile disc read only memory (DVD-ROM) specification, and the writable storage area is compatible with the recording/reproducing characteristics of a writable DVD specification so that an existing reproducing-only apparatus can read information from the read-only storage area, and data can be recorded in the writable storage area using an apparatus obtained by minimally changing an existing recording/reproducing apparatus while maintaining the physical recording characteristics of the existing recording/reproducing apparatus.

    摘要翻译： 因此，具有只读存储区和可写存储区以及记录/再现装置和方法的光记录介质。 光记录介质是具有适合于批量生产具有相同内容的信息的只读存储区域和可以根据用户选项记录，更新或添加数据的可写存储区域的混合盘。 只读存储区域具有与数字通用盘只读存储器（DVD-ROM）规范完全兼容的结构，并且可写存储区域与可写DVD规范的记录/再现特性兼容，使得现有 只读设备可以从只读存储区域读取信息，并且可以使用通过最小程度地改变现有记录/再现设备获得的设备将数据记录在可写存储区域中，同时保持现有记录/再现的物理记录特性 仪器。

    Error signal detecting apparatus for optical recording/reproducing apparatus
    24.
    发明授权
    Error signal detecting apparatus for optical recording/reproducing apparatus 有权
    用于光学记录/再现装置的误差信号检测装置

    公开(公告)号：US06611482B2

    公开(公告)日：2003-08-26

    申请号：US09812714

    申请日：2001-03-22

    申请人： Byung-in Ma ,  Chong-sam Chung ,  In-sik Park ,  Byoung-ho Choi ,  Tae-yong Doh

    发明人： Byung-in Ma ,  Chong-sam Chung ,  In-sik Park ,  Byoung-ho Choi ,  Tae-yong Doh

    IPC分类号： G11B700

    CPC分类号： G11B7/131 ,  G11B7/00718 ,  G11B7/094 ,  G11B7/0941 ,  G11B7/0943 ,  G11B7/0956

    摘要： An error signal detecting apparatus for an optical recording/reproducing apparatus, the error signal detecting apparatus including a photodetector to receive light reflected and diffracted by a recording medium, and a signal processor to detect an error signal by calculating a detection signal of the photodetector. The photodetector includes a plurality of light receiving areas to independently receive light of a light area in which the profile of the light changes to the opposite profile according to the tangential tilt of the recording medium. The signal processor detects a tangential tilt error signal from detection signals of the light receiving areas. Thus, a signal output from the error signal detecting apparatus does not change when a shift is generated in the objective lens or the distance between the objective lens and the disc is deviated from the on-focus position. Also, a change in the profile of the light beam according to a relative tangential tilt with respect to the objective lens of a recording medium in land/groove format can be properly detected so that an accurate tangential tilt error signal can be detected.

    摘要翻译： 一种用于光学记录/再现装置的误差信号检测装置，所述误差信号检测装置包括用于接收由记录介质反射和衍射的光的光电检测器，以及通过计算所述光电检测器的检测信号来检测误差信号的信号处理器。 光电检测器包括多个光接收区域，以独立地接收光区域的光，其中光的轮廓根据记录介质的切线倾斜而改变到相反的轮廓。 信号处理器从光接收区域的检测信号检测切向倾斜误差信号。 因此，当在物镜中产生偏移或物镜与盘之间的距离偏离对焦位置时，从误差信号检测装置输出的信号不改变。 此外，可以适当地检测根据相对于陆地/凹槽格式的记录介质的物镜的相对切向倾斜的光束轮廓的变化，从而可以检测出精确的切向倾斜误差信号。

    Method of detecting track cross signal of optical disc recording/reproducing device and apparatus therefor
    25.
    发明授权
    Method of detecting track cross signal of optical disc recording/reproducing device and apparatus therefor 失效
    检测光盘记录/再现装置的轨道交叉信号的方法及其装置

    公开(公告)号：US06400662B1

    公开(公告)日：2002-06-04

    申请号：US09660469

    申请日：2000-09-12

    申请人： Byoung-ho Choi ,  Jung-wan Ko ,  Byung-in Ma ,  Tae-yong Doh ,  Tae-yeon Lee ,  In-sik Park

    发明人： Byoung-ho Choi ,  Jung-wan Ko ,  Byung-in Ma ,  Tae-yong Doh ,  Tae-yeon Lee ,  In-sik Park

    IPC分类号： G11B700

    CPC分类号： G11B7/131 ,  G11B7/08517 ,  G11B7/08541

    摘要： An optical recording/reproducing apparatus for determining a direction in which an optical pick-up moves, and detecting a track cross signal. The track cross signal is useful as a basis of determining tracking pull-in after searching a track. In the present track cross signal detecting method, the track cross signal is obtained by binarizing the envelope of an RF signal RF0 obtained by subtracting some light receiving signals generated by some light receiving devices in the radial direction from other light receiving signals generated by other light receiving devices in the radial direction. The light receiving signals originate from a photodetector, divided into two or more sections in the radial direction. The track cross signal detecting method is especially useful for generating the track cross signal when the track pitch is smaller than the size of an optical spot, the signal being less affected by crosstalk caused by an adjacent track.

    摘要翻译： 一种光学记录/再现装置，用于确定光学拾取器移动的方向，并且检测轨迹交叉信号。 轨道交叉信号作为在搜索轨道之后确定跟踪拉入的基础是有用的。 在本轨道交叉信号检测方法中，轨道交叉信号是通过将通过从其他光产生的其他光接收信号中减去由一些光接收装置产生的一些光接收信号而获得的RF信号RF0的包络线二值化获得的， 沿径向接收装置。 光接收信号源于光电检测器，在径向上分成两个或更多个部分。 当轨道间距小于光点的大小时，轨道交叉信号检测方法对于产生轨道交叉信号特别有用，该信号较少受到由相邻轨道引起的串扰的影响。