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    • 4. 发明授权
    • Method for performing optimal recording power calibration in recorder and recording medium therefor
    • 用于在记录器和记录介质中执行最佳记录功率校准的方法
    • US07447128B2
    • 2008-11-04
    • US10980274
    • 2004-11-04
    • Yeo Han Yun
    • Yeo Han Yun
    • G11B7/004
    • G11B7/1267
    • A method for performing optimal recording power calibration (OPC) on a recording medium, such as a DVD-RW, is characterized by flagging the address of the last test data. The method enables a recording position of the last test data to be quickly retrieved by recording position information of a power calibration area, in which the last test data is recorded, and indication information (such as a flag bit) indicating the recording position information is the last test data, in a specific area of the recording medium, such as the second field (field 1) of the format 1 RMD (recording management data). Such a method shortens the processing time prior to the OPC, and does not require the recorder to employ registers to determine the address of the last test data.
    • 在诸如DVD-RW的记录介质上执行最佳记录功率校准(OPC)的方法的特征在于标记最后一个测试数据的地址。 该方法通过记录最后一个测试数据的功率校准区域的位置信息和指示记录位置信息的指示信息(诸如标志位)能够快速检索最后的测试数据的记录位置, 诸如格式1 RMD(记录管理数据)的第二字段(字段1)的记录介质的特定区域中的最后测试数据。 这种方法缩短了OPC之前的处理时间,并且不要求记录器使用寄存器来确定最后一个测试数据的地址。
    • 7. 发明授权
    • Method and apparatus for controlling tilt in an optical disc device
    • 用于控制光盘装置中的倾斜的方法和装置
    • US07755992B2
    • 2010-07-13
    • US11131226
    • 2005-05-18
    • Yeo Han Yun
    • Yeo Han Yun
    • G11B7/00
    • G11B7/0956G11B7/0945G11B2007/0006
    • A method and apparatus for controlling tilt in an optical disc device are provided. The method includes determining tilt offset values corresponding to different positions of an optical disc for a first tilt control mode, and deciding whether to switch to a static tilt control mode, based on a difference between the detected tilt offset values. If the disc is subject to defect management, a static tilt control mode is selected so that stable focus and tracking servo operations are maintained. If the disc is not subject to defect management, a dynamic tilt control mode is selected so that tilt control optimal for the skew of the optical disc, which gradually increases towards the outer perimeter of the disc, is performed. If the difference between tilt offset values detected respectively for inner and outer peripheral areas of the disc is small when the dynamic tilt control mode is selected, the device determines that the skew is low and changes the tilt control mode to the static tilt control mode.
    • 提供了一种用于控制光盘装置中的倾斜的方法和装置。 该方法包括:基于检测到的倾斜偏移值之间的差,确定对应于用于第一倾斜控制模式的光盘的不同位置的倾斜偏移值,以及决定是否切换到静态倾斜控制模式。 如果光盘受到缺陷管理,则选择静态倾斜控制模式,以保持稳定的对焦和跟踪伺服操作。 如果盘不进行缺陷管理,则选择动态倾斜控制模式,使得对于朝向盘的外周逐渐增加的光盘的偏斜最优的倾斜控制被执行。 如果当选择动态倾斜控制模式时分别检测到的盘的内外周区域的倾斜偏移值之间的差异,则该装置确定歪斜低并将倾斜控制模式改变为静态倾斜控制模式。
    • 10. 发明授权
    • Method and apparatus for managing parental level of optical disc
    • 用于管理光盘的父母级别的方法和装置
    • US07769271B2
    • 2010-08-03
    • US10792272
    • 2004-03-04
    • Young Kuk KimYeo Han Yun
    • Young Kuk KimYeo Han Yun
    • H04N5/91H04N5/00
    • G11B27/105
    • Method and apparatus for managing a parental level of an optical disc can allow a user to set a parental level of a data stream recorded and stored on a rewritable optical disc or write-once optical disc, and can record and manage the set parental level as navigation information such as for the optical discs. The method and apparatus allow the user to conveniently set or change the parental level of the data stream, refer to the parental level recorded and managed therefore, and carry out a parental locking operation such that children or teenagers cannot arbitrarily reproduce a data stream of an adult program. Further, a parental grade code, a supplemental parental grade code or if the parental code was generated using parental management information previously supplied by the user can be determined. Accordingly, an authorized user can determine whether the previous set grade code is changed illegally.
    • 用于管理光盘的父母级别的方法和装置可以允许用户设置记录并存储在可重写光盘或一次写入光盘上的数据流的父母级别,并且可以将设置的父母级别记录和管理为 诸如用于光盘的导航信息。 该方法和装置允许用户方便地设置或改变数据流的父母级别,参考由此记录和管理的父母级别,并执行父母锁定操作,使得儿童或青少年不能任意地再现数据流的数据流 成人节目。 此外,可以确定父母年龄代码,补充的父母年龄代码,或者如果使用由用户先前提供的父母管理信息生成了父母代码。 因此,授权用户可以确定先前设定的等级代码是否被非法改变。