METHOD FOR DEFECT MANAGEMENT IN REWRITABLE OPTICAL STORAGE MEDIA
    21.
    发明申请
    METHOD FOR DEFECT MANAGEMENT IN REWRITABLE OPTICAL STORAGE MEDIA 失效
    可逆式光存储介质中的缺陷管理方法

    公开(公告)号:US20080013418A1

    公开(公告)日:2008-01-17

    申请号:US11772291

    申请日:2007-07-02

    IPC分类号: G11B19/02 G11B7/24

    摘要: A method for defect management of a rewritable optical disc is provided. The rewritable optical disc has a data area comprises recording units for storing a target data and a replacement area comprising first replacement units for replacing defective recording units of the data area. First, a fragmented status of the target data is calculated, wherein the fragmented status reflects a dispersion level of the first replacement units in view of a distribution of the defective recording units. The fragmented status is then compared with a threshold value to determine whether to perform a defragment operation about the target data. Finally, the defragment operation about the target data is performed by rearranging the first replacement units in accordance with the sequence of the defective recording units.

    摘要翻译: 提供了一种可重写光盘的缺陷管理方法。 可重写光盘具有数据区,包括用于存储目标数据的记录单元和包括用于替换数据区的有缺陷记录单元的第一替换单元的替换区。 首先,计算目标数据的分段状态,其中分散状态考虑到缺陷记录单元的分布,反映第一替换单元的色散水平。 然后将分段状态与阈值进行比较,以确定是否对目标数据执行碎片整理操作。 最后,关于目标数据的碎片整理操作是通过根据有缺陷的记录单元的顺序来重新布置第一替换单元而进行的。

    DEFECT DETECTING METHOD AND SYSTEM FOR OPTICAL DISC
    23.
    发明申请
    DEFECT DETECTING METHOD AND SYSTEM FOR OPTICAL DISC 审中-公开
    光盘缺陷检测方法与系统

    公开(公告)号:US20100157750A1

    公开(公告)日:2010-06-24

    申请号:US12343511

    申请日:2008-12-24

    IPC分类号: G11B20/10

    摘要: A defect detecting method for an optical disc accessed by an optical pickup head, including: (a) detecting if any defect exists in a detected region of the optical disc after data is written to the detected region; (b) while writing data to the optical disc, detecting if any defect exists on the optical disc according to reflection from the optical pickup head to thereby generate a first defect detecting result; and (c) switching from one of the steps (a) and (b) to the other of the steps (a) and (b).

    摘要翻译: 一种由光拾取头访问的光盘的缺陷检测方法,包括:(a)在将数据写入检测区域之后检测在光盘的检测区域中是否存在任何缺陷; (b)在向光盘写数据的同时,根据来自光拾取头的反射检测光盘是否存在缺陷从而产生第一缺陷检测结果; 和(c)从步骤(a)和(b)中的一个切换到步骤(a)和(b)中的另一个。

    SYSTEM AND METHOD FOR DYNAMIC BUFFER MANAGEMENT BY MONITORING DATA BUFFERING STATUS
    24.
    发明申请
    SYSTEM AND METHOD FOR DYNAMIC BUFFER MANAGEMENT BY MONITORING DATA BUFFERING STATUS 审中-公开
    通过监控数据缓冲状态进行动态缓冲区管理的系统和方法

    公开(公告)号:US20090010120A1

    公开(公告)日:2009-01-08

    申请号:US11773964

    申请日:2007-07-06

    IPC分类号: G11B19/12

    摘要: An optical storage system, for dynamically controlling the rate of recording data to an optical medium includes: a buffer, for buffering data to be recorded to the optical medium; a data recording block, coupled to the buffer and the optical medium, for recording data from the buffer to the optical medium at a recording speed; and a control block, coupled to the buffer and the data recording block, for monitoring an amount of data buffered in the buffer, and adjusting the recording speed by comparing at least one criteria with the amount of data buffered in the buffer.

    摘要翻译: 用于动态地控制记录数据到光学介质的速率的光学存储系统包括:缓冲器,用于缓冲待记录到光学介质上的数据; 耦合到缓冲器和光学介质的数据记录块,用于以记录速度将数据从缓冲器记录到光学介质; 以及耦合到缓冲器和数据记录块的控制块,用于监视缓冲器中缓冲的数据量,以及通过将至少一个准则与缓冲器中缓冲的数据量进行比较来调整记录速度。

    Random access control method and optical disc driver
    26.
    发明授权
    Random access control method and optical disc driver 有权
    随机存取控制方法和光盘驱动器

    公开(公告)号:US07948842B2

    公开(公告)日:2011-05-24

    申请号:US12773192

    申请日:2010-05-04

    IPC分类号: G11B7/00 G11B5/09

    摘要: A random access control method is provided, implemented in an optical disc drive for recording data to an optical disc. In the optical disc drive, a buffer stores a plurality of write commands each associated with a data block bound to a destination address. A processor controls the buffer to build a disc write task from the write commands in which addresses are organized in order. A drive unit is controlled by the processor, performing a recording operation to record the data blocks to the optical disc according to the disc write task; wherein the processor further controls the drive unit to verify the recorded data blocks after completing the recording operation.

    摘要翻译: 提供了一种在光盘驱动器中实现的用于将数据记录到光盘的随机存取控制方法。 在光盘驱动器中,缓冲器存储多个写入命令,每个写入命令与与目标地址绑定的数据块相关联。 一个处理器控制缓冲区,从写入命令构建一个光盘写入任务,其中按顺序组织地址。 驱动单元由处理器控制,执行记录操作以根据光盘写入任务将数据块记录到光盘; 其中所述处理器进一步控制所述驱动单元在完成所述记录操作之后验证所记录的数据块。

    Apparatus and method for defect replacement

    公开(公告)号:US07788549B2

    公开(公告)日:2010-08-31

    申请号:US12652239

    申请日:2010-01-05

    IPC分类号: G11C29/00

    摘要: Apparatuses and methods for defect replacement when an optical storage medium is read are provided. When the defect management is LOW, a pick-up head retrieves a set of data from the optical storage medium; a defect detector detects whether there is a defect in the set; if yes, a processor determines whether a replacement for the defect is in the set; and if yes, an interface transmits the replacement from the set. When the defect management is CRD, a buffer temporarily stores data retrieved from the optical storage medium; a defect detector detects whether there is a set of defects in the data; if yes, a comparator compares a length of the set of defects with a defect threshold length; a pick-up head reads more data from the optical storage medium continuously until the buffer reaches a buffer threshold if the length is compared shorter than the defect threshold length; and the pick-up head reads a set of replacements for the set of defects directly if the length is compared longer than the defect threshold length.

    APPARATUS AND METHOD FOR DEFECT REPLACEMENT
    28.
    发明申请
    APPARATUS AND METHOD FOR DEFECT REPLACEMENT 有权
    缺陷替换的装置和方法

    公开(公告)号:US20100107040A1

    公开(公告)日:2010-04-29

    申请号:US12652239

    申请日:2010-01-05

    IPC分类号: H03M13/05 G06F11/10

    摘要: Apparatuses and methods for defect replacement when an optical storage medium is read are provided. When the defect management is LOW, a pick-up head retrieves a set of data from the optical storage medium; a defect detector detects whether there is a defect in the set; if yes, a processor determines whether a replacement for the defect is in the set; and if yes, an interface transmits the replacement from the set. When the defect management is CRD, a buffer temporarily stores data retrieved from the optical storage medium; a defect detector detects whether there is a set of defects in the data; if yes, a comparator compares a length of the set of defects with a defect threshold length; a pick-up head reads more data from the optical storage medium continuously until the buffer reaches a buffer threshold if the length is compared shorter than the defect threshold length; and the pick-up head reads a set of replacements for the set of defects directly if the length is compared longer than the defect threshold length.

    摘要翻译: 提供读取光存储介质时的缺陷更换装置和方法。 当缺陷管理为LOW时,拾取头从光学存储介质检索一组数据; 缺陷检测器检测组中是否存在缺陷; 如果是,处理器确定缺陷的替换是否在集合中; 如果是,则接口从该组发送替换。 当缺陷管理是CRD时,缓冲器临时存储从光学存储介质检索的数据; 缺陷检测器检测数据中是否存在一组缺陷; 如果是,则比较器将该组缺陷的长度与缺陷阈值长度进行比较; 如果长度比缺陷阈值长度短,则拾取头从光存储介质中连续地读取更多的数据,直到缓冲器达到缓冲器阈值; 如果长度比缺陷阈值长度长,并且拾取头直接读取该组缺陷的一组替换。

    Apparatus and method for defect replacement
    30.
    发明申请
    Apparatus and method for defect replacement 失效
    缺陷更换装置及方法

    公开(公告)号:US20070300132A1

    公开(公告)日:2007-12-27

    申请号:US11442930

    申请日:2006-05-30

    IPC分类号: G11C29/00

    摘要: Apparatuses and methods for defect replacement when an optical storage medium is read are provided. When the defect management is LOW, a pick-up head retrieves a set of data from the optical storage medium; a defect detector detects whether there is a defect in the set; if yes, a processor determines whether a replacement for the defect is in the set; and if yes, an interface transmits the replacement from the set. When the defect management is CRD, a buffer temporarily stores data retrieved from the optical storage medium; a defect detector detects whether there is a set of defects in the data; if yes, a comparator compares a length of the set of defects with a defect threshold length; a pick-up head reads more data from the optical storage medium continuously until the buffer reaches a buffer threshold if the length is compared shorter than the defect threshold length; and the pick-up head reads a set of replacements for the set of defects directly if the length is compared longer than the defect threshold length.

    摘要翻译: 提供读取光存储介质时的缺陷更换装置和方法。 当缺陷管理为LOW时,拾取头从光学存储介质检索一组数据; 缺陷检测器检测组中是否存在缺陷; 如果是,处理器确定缺陷的替换是否在集合中; 如果是,则接口从该组发送替换。 当缺陷管理是CRD时,缓冲器临时存储从光学存储介质检索的数据; 缺陷检测器检测数据中是否存在一组缺陷; 如果是,则比较器将该组缺陷的长度与缺陷阈值长度进行比较; 如果长度比缺陷阈值长度短,则拾取头从光存储介质中连续地读取更多的数据,直到缓冲器达到缓冲器阈值; 如果长度比缺陷阈值长度长,并且拾取头直接读取该组缺陷的一组替换。