Rewritable DVD-RAM disc
    1.
    发明授权
    Rewritable DVD-RAM disc 失效
    可重写DVD-RAM光盘

    公开(公告)号:US06483799B1

    公开(公告)日:2002-11-19

    申请号:US09490024

    申请日:2000-01-21

    IPC分类号: G11B2300

    CPC分类号: G11B31/006

    摘要: A rewritable DVD-RAM disc. By changing the location or dimension of the lead-out area of the DVD-RAM disc, the data area of the disc can be enlarged. The enlarged area of the disc can be flexibly applied to the user area, the main spare area, or the backup spare area.

    摘要翻译: 可重写DVD-RAM光盘。 通过改变DVD-RAM光盘的导出区域的位置或尺寸,可以扩大光盘的数据区域。 盘的放大区域可以灵活地应用于用户区域,主备用区域或备用备用区域。

    Method of managing defect areas on an erasable optical disc in a dynamic manner
    2.
    发明授权
    Method of managing defect areas on an erasable optical disc in a dynamic manner 有权
    以动态方式管理可擦除光盘上的缺陷区域的方法

    公开(公告)号:US06415400B1

    公开(公告)日:2002-07-02

    申请号:US09434863

    申请日:1999-11-04

    IPC分类号: G11C2900

    摘要: 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.

    摘要翻译: 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。

    Optical discs with controllable access times and method of the same
    4.
    发明授权
    Optical discs with controllable access times and method of the same 失效
    具有可控访问时间和方法的光盘

    公开(公告)号:US07383585B2

    公开(公告)日:2008-06-03

    申请号:US10806123

    申请日:2004-03-23

    IPC分类号: H04L9/00

    摘要: A method controls the access times of an optical disc end discs of the same. The method includes the following steps. First, an optical disc drive obtains the addresses of a life flag and a medium key block (MKB) by reading a private flag of an optical disc. The life flag and the MKB are used to control the access times of the optical disc. After confirming the addresses of the life flag and the MKB, the optical disc drive obtains an optical power signal to determine the power that should be used to read the MKB. When the optical disc drive uses the appropriate reading power to access the MKB, the recognizable number of access times in the 4KB data is reduced, and the medium key signal is extracted to be confirmed if it is recognizable to restate the main data.

    摘要翻译: 一种方法控制其光盘端盘的访问时间。 该方法包括以下步骤。 首先,光盘驱动器通过读取光盘的专用标志来获得生命标记和中密钥块(MKB)的地址。 寿命标志和MKB用于控制光盘的访问时间。 在确认生命标志和MKB的地址之后,光盘驱动器获得光功率信号,以确定应该用于读取MKB的功率。 当光盘驱动器使用适当的读取功率来访问MKB时,4KB数据中的可识别的访问次数减少,并且如果可识别的主键信息被重新标识,则提取中等密钥信号以被确认。

    Watermark embedding method based on DCT subband image characters
    5.
    发明授权
    Watermark embedding method based on DCT subband image characters 失效
    基于DCT子带图像字符的水印嵌入方法

    公开(公告)号:US07197163B2

    公开(公告)日:2007-03-27

    申请号:US10700549

    申请日:2003-11-05

    IPC分类号: G06K9/00

    摘要: A watermark embedding method based on DCT subband image characters is disclosed. An original image is converted into a frequency image using a discrete cosine transformation. The watermark information is then embedded into a specific embedding block in each macro-block of the frequency image. The method has the following advantages: (1) the image embedded by watermark is resistant from distortion and damages from compressions; (2) the watermark image can be extracted without employing the original image; and (3) the quality of the image embedded with the watermark image can remain intact.

    摘要翻译: 公开了一种基于DCT子带图像字符的水印嵌入方法。 使用离散余弦变换将原始图像转换成频率图像。 然后将水印信息嵌入到频率图像的每个宏块中的特定嵌入块中。 该方法具有以下优点:(1)水印嵌入图像不受扭曲破坏和压缩损坏; (2)可以在不使用原始图像的情况下提取水印图像; 和(3)嵌入水印图像的图像的质量可以保持不变。

    Watermark embedding method based on DCT subband image characters
    6.
    发明申请
    Watermark embedding method based on DCT subband image characters 失效
    基于DCT子带图像字符的水印嵌入方法

    公开(公告)号:US20050018872A1

    公开(公告)日:2005-01-27

    申请号:US10700549

    申请日:2003-11-05

    IPC分类号: G06K9/00 G06T1/00

    摘要: A watermark embedding method based on DCT subband image characters is disclosed. An original image is converted into a frequency image using a discrete cosine transformation. The watermark information is then embedded into a specific embedding block in each macro-block of the frequency image. The method has the following advantages: (1) the image embedded by watermark is resistant from distortion and damages from compressions; (2) the watermark image can be extracted without employing the original image; and (3) the quality of the image embedded with the watermark image can remain intact.

    摘要翻译: 公开了一种基于DCT子带图像字符的水印嵌入方法。 使用离散余弦变换将原始图像转换成频率图像。 然后将水印信息嵌入到频率图像的每个宏块中的特定嵌入块中。 该方法具有以下优点:(1)水印嵌入图像不受扭曲破坏和压缩损坏; (2)可以在不使用原始图像的情况下提取水印图像; 和(3)嵌入水印图像的图像的质量可以保持不变。

    Disc burner and its control method
    7.
    发明授权
    Disc burner and its control method 失效
    光盘刻录机及其控制方法

    公开(公告)号:US07190654B2

    公开(公告)日:2007-03-13

    申请号:US10838255

    申请日:2004-05-05

    IPC分类号: G11B7/00

    CPC分类号: G11B7/00456

    摘要: A disc burner and its control method applicable to high speed disc burner, to solve disc burning failure problem due to burning speed exceeding encoding speed. A buffer is inserted to store the encoded data in groups, and these data groups are used in sequence for disc burning purpose. Therefore, the waiting time of the writing laser is spread out and does not exceed the threshold waiting time, and there is no disc burning failure problem.

    摘要翻译: 光盘刻录机及其控制方法适用于高速光盘刻录机,解决由于烧录速度超过编码速度而造成的光盘刻录故障问题。 插入缓冲器以将编码的数据分组存储,并且这些数据组按顺序用于光盘刻录目的。 因此,写入激光器的等待时间分散,不超过阈值等待时间,没有光盘刻录失败问题。

    Optical discs with controllable access times and method of the same
    8.
    发明申请
    Optical discs with controllable access times and method of the same 失效
    具有可控访问时间和方法的光盘

    公开(公告)号:US20050094500A1

    公开(公告)日:2005-05-05

    申请号:US10806123

    申请日:2004-03-23

    摘要: The specification disclosed a method that controls the access times of an optical disc and discs of the same. The method includes the following steps. First, an optical disc drive obtains the addresses of a life flag and a medium key block (MKB) by reading a private flag of an optical disc. The life flag and the MKB are used to control the access times of the optical disc. After confirming the addresses of the life flag and the MKB, the optical disc drive obtains an optical power signal to determine the power that should be used to read the MKB. When the optical disc drive uses the appropriate reading power to access the MKB, the recognizable number of access times in the MKB data is reduced, and the medium key signal is extracted to be confirmed if it is recognizable to restore the main data.

    摘要翻译: 本说明书公开了一种控制光盘的访问时间和其光盘的方法。 该方法包括以下步骤。 首先,光盘驱动器通过读取光盘的专用标志来获得生命标记和中密钥块(MKB)的地址。 寿命标志和MKB用于控制光盘的访问时间。 在确认生命标志和MKB的地址之后,光盘驱动器获得光功率信号,以确定应该用于读取MKB的功率。 当光盘驱动器使用适当的读取功率来访问MKB时,MKB数据中的可识别的访问次数减少,并且如果可识别恢复主数据,则提取媒体密钥信号以被确认。

    Disc burner and its control method
    10.
    发明申请
    Disc burner and its control method 失效
    光盘刻录机及其控制方法

    公开(公告)号:US20050141386A1

    公开(公告)日:2005-06-30

    申请号:US10838255

    申请日:2004-05-05

    IPC分类号: G11B5/09 G11B7/0045

    CPC分类号: G11B7/00456

    摘要: A disc burner and its control method applicable to high speed disc burner, to solve disc burning failure problem due to burning speed exceeding encoding speed. A buffer is inserted to store the encoded data in groups, and these data groups are used in sequence for disc burning purpose. Therefore, the waiting time of the writing laser is spread out and does not exceed the threshold waiting time, and there is no disc burning failure problem.

    摘要翻译: 光盘刻录机及其控制方法适用于高速光盘刻录机,解决由于烧录速度超过编码速度而造成的光盘刻录故障问题。 插入缓冲器以将编码的数据分组存储,并且这些数据组按顺序用于光盘刻录目的。 因此,写入激光器的等待时间分散,不超过阈值等待时间,没有光盘刻录失败问题。