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    • 1. 发明授权
    • Ranked cleaning policy and error recovery method for file systems using flash memory
    • 使用闪存的文件系统排名的清除策略和错误恢复方法
    • US06715027B2
    • 2004-03-30
    • US09967585
    • 2001-09-28
    • Jeong-ki KimSeung-Min Park
    • Jeong-ki KimSeung-Min Park
    • G06F1200
    • G06F12/0246G06F11/1441
    • The present invention relates to a cleaning policy and a method for recovering error in a file system using flash memory; and, more particularly, to a ranked cleaning policy in a file system using flash memory which can be used effectively and longer by dividing it into segments, adopting the ranked cleaning policy and arranging cleaned spaces evenly, and to an error recovery method in a file system using flash memory which can recover error by subdividing cleaning status when sudden power error is caused, as well as to a computer-based recording medium for recording a program to embody the methods above. A method for ranked cleaning policy in file systems using flash memory, the method comprising the steps of: calculating rank values for all segments of the flash memory periodically; and if the storable space of the flash memory becomes less than a predetermined volume, a cleaner operating to clean invalid space of segments in order of their rank values obtained in the previous step high to low and thus to secure new storage space.
    • 本发明涉及一种使用闪速存储器来恢复文件系统中的错误的清理策略和方法。 更具体地,涉及使用闪存的文件系统中的排名清洁策略,其可以通过将其划分成多个段来有效地和更长时间地使用,采用排名清洁策略并均匀地排列清洁的空间以及文件中的错误恢复方法 使用闪存的系统,其可以通过在突发电源错误时分割清洁状态来恢复错误,以及用于记录程序以体现上述方法的基于计算机的记录介质。 一种使用闪速存储器的文件系统中的排名清洁策略的方法,所述方法包括以下步骤:周期性地计算闪速存储器的所有段的等级值; 并且如果闪速存储器的可存储空间小于预定的容量,则清洁器按照先前步骤中获得的等级值从高到低按顺序清除段的无效空间,从而确保新的存储空间。
    • 4. 发明授权
    • OLED and cone paper movement control device for visual speaker
    • OLED和锥形纸移动控制装置,用于视觉扬声器
    • US08379886B2
    • 2013-02-19
    • US12735921
    • 2009-02-25
    • Seung-Min Park
    • Seung-Min Park
    • H04R25/00
    • H04R1/028H04R7/12H04R7/26H04R2307/021H04R2499/15
    • The present invention relates to an apparatus for controlling the movement of a cone paper used for outputting sound, and a flexible OLED covered on the cone paper in order to enhance the sound quality of a visual speaker. In a visual speaker which includes a voice coil, a magnet, an edge, a unit enclosure, a flexible OLED for displaying video images, and a speaker cone paper, a visual speaker is characterized in that a speaker cone paper configured to output sound, a flexible OLED covered on the speaker cone paper, an edge, and a unit enclosure are formed in an integral airtight structure filled with a compressed gas, and a compression piston and a compressed gas adjusting device are further disposed for adjusting the pressure of the inner compressed gas, so that it is possible to control the movements of the flexible OLED and the speaker cone paper.
    • 本发明涉及一种用于控制用于输出声音的锥形纸的移动的装置,以及覆盖在锥形纸上的柔性OLED,以增强视觉扬声器的声音质量。 在包括音圈,磁体,边缘,单元外壳,用于显示视频图像的柔性OLED以及扬声器锥形纸的视觉扬声器中,视觉扬声器的特征在于,配置成输出声音的扬声器锥形纸, 在扬声器锥形纸,边缘和单元外壳上覆盖的柔性OLED被形成为填充有压缩气体的整体气密结构,还设有压缩活塞和压缩气体调节装置,用于调节内部的压力 压缩气体,使得可以控制柔性OLED和扬声器锥形纸的移动。