会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 43. 发明授权
    • Method of managing defect areas on an erasable optical disc in a dynamic manner
    • 以动态方式管理可擦除光盘上的缺陷区域的方法
    • US06415400B1
    • 2002-07-02
    • US09434863
    • 1999-11-04
    • Guo-Zua WuZu-Wen ChaoWei-Cheng Chen
    • Guo-Zua WuZu-Wen ChaoWei-Cheng Chen
    • G11C2900
    • G11B20/1883G11B20/18G11B2220/20
    • A method is proposed for managing defect areas on an erasable optical disc in a dynamic manner. By this method, a main spare area including a plurality of logical blocks is used to provide substitution logic blocks for any bad logical blocks in the user read/write area; and when all the logical blocks in the main spare area are used up, a supplementary spare area is defined from a continuous unused storage area in the user read/write area; and further, when all the logical blocks in this supplementary spare area are used up, an additional supplementary spare area is defined from another continuous unused storage area in the user read/write area; and so forth. The method allows the use of a comprehensive set of commands and data message for the communication between the file system and the optical drive when performing this management method. This method allows the optical drive to move over a shorter distance from a bad logical block to the substitution logic block so that access time to the optical disc can be enhanced. Moreover, this method allows all the bad logical blocks to have substitutions as long as the unused storage space in the formatted area is sufficient, so that this method can offer a much longer time of service than the prior art.
    • 提出了以动态方式管理可擦除光盘上的缺陷区域的方法。 通过该方法,使用包括多个逻辑块的主备用区域来为用户读/写区域中的任何不良逻辑块提供替换逻辑块; 并且当主备用区中的所有逻辑块用完时,从用户读/写区中的连续未使用的存储区定义辅助备用区; 此外,当该辅助备用区域中的所有逻辑块用完时,从用户读/写区域中的另一连续未使用的存储区域定义附加补充备用区域; 等等。 该方法允许在执行该管理方法时使用一组全面的命令和数据消息来进行文件系统与光驱之间的通信。 该方法允许光驱从不良逻辑块到替代逻辑块的较短距离移动,从而可以提高对光盘的访问时间。 此外,只要格式化区域中的未使用的存储空间足够,该方法允许所有不良逻辑块具有替换,使得该方法可以提供比现有技术更长的服务时间。