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155 条记录 (耗时 0.032 秒)

    Information recording and reproducing apparatus and information recording method
    71.
    发明申请
    Information recording and reproducing apparatus and information recording method 审中-公开
    信息记录和再现装置和信息记录方法

    公开(公告)号：US20060171277A1

    公开(公告)日：2006-08-03

    申请号：US11328264

    申请日：2006-01-10

    申请人： Takashi Usui ,  Yutaka Kashihara ,  Chosaku Noda ,  Akihito Ogawa

    发明人： Takashi Usui ,  Yutaka Kashihara ,  Chosaku Noda ,  Akihito Ogawa

    IPC分类号： G11B5/09 ,  G11B7/00

    CPC分类号： G11B27/034 ,  G11B27/105 ,  G11B27/24 ,  G11B27/329

    摘要： An attempt is made to make it possible to efficiently perform the finalizing process and closing process in a short period of time and securely manage the last address of a border-out. When the border closing or finalizing process is performed after user data is recorded, a padding process is performed for at least a discontinuous area in the data area and a border-out is lastly recorded in a first step. Then, in a second step, latest recording management data (RMD) is recorded in a recording management data duplication zone (RDZ) of a data lead-in area, latest recording management data (RMD) is recorded in an unrecorded area of a present recording management zone (RMZ) and R physical format information (R-PFI) is recorded in an R physical format information zone (R-PFIZ).

    摘要翻译： 试图使得能够在短时间内有效地执行完成处理和结束处理，并且可以安全地管理边界的最后地址。 当在记录用户数据之后执行边界关闭或完成处理时，对数据区域中的至少不连续区域执行填充处理，并且在第一步骤中最后记录边界输出。 然后，在第二步骤中，最新的记录管理数据（RMD）被记录在数据导入区的记录管理数据复制区（RDZ）中，最新的记录管理数据（RMD）被记录在当前的未记录区 记录管理区（RMZ）和R物理格式信息（R-PFI）被记录在R物理格式信息区（R-PFIZ）中。

    Information storage medium, information recording method and apparatus, and information reproducing method and apparatus
    72.
    发明申请
    Information storage medium, information recording method and apparatus, and information reproducing method and apparatus 审中-公开
    信息存储介质，信息记录方法和装置以及信息再现方法和装置

    公开(公告)号：US20060077883A1

    公开(公告)日：2006-04-13

    申请号：US11226356

    申请日：2005-09-15

    申请人： Hideo Ando ,  Hideki Takahashi ,  Yutaka Kashihara ,  Akihito Ogawa

    发明人： Hideo Ando ,  Hideki Takahashi ,  Yutaka Kashihara ,  Akihito Ogawa

    IPC分类号： G11B7/24 ,  G11B7/00

    CPC分类号： G11B20/1883 ,  G11B2220/20

    摘要： There is provided an information storage medium capable of highly reliable defect management, even if the medium has relatively low resistance to overwriting. The information storage medium comprises a defect management area in which defect management information on a replacing process is recorded, a spare area for defect management information on the defect management area, and an area in which a DMA manager for managing the replacing process using the spare area for defect management information is recorded.

    摘要翻译： 即使介质具有相对较低的覆盖阻力，也提供了能够高度可靠的缺陷管理的信息存储介质。 信息存储介质包括其中记录关于替换处理的缺陷管理信息的记录缺陷管理区域，缺陷管理区域的缺陷管理信息的备用区域以及使用备用管理替换处理的DMA管理器的区域 记录缺陷管理信息的区域。

    Optical disk apparatus and address detection method
    74.
    发明申请
    Optical disk apparatus and address detection method 审中-公开
    光盘设备和地址检测方法

    公开(公告)号：US20050270911A1

    公开(公告)日：2005-12-08

    申请号：US11143999

    申请日：2005-06-03

    申请人： Yutaka Kashihara ,  Tadashi Kojima ,  Akihito Ogawa

    发明人： Yutaka Kashihara ,  Tadashi Kojima ,  Akihito Ogawa

    IPC分类号： G11B20/12 ,  G11B5/09 ,  G11B7/005 ,  G11B7/007 ,  G11B7/24 ,  G11B20/18 ,  G11B27/24

    CPC分类号： G11B27/24 ,  G11B7/00718

    摘要： An optical disk apparatus comprises a Gray code detector for detecting a Gray code of a track address, a position detector for detecting, as an address uncertain position, a least significant bit of the detected Gray code of the track address and a bit of the detected Gray code of the track address and is higher by one than a bit position of a least significant code bit “1”, and a replacing unit which replaces a bit at the address uncertain position of the land address with a bit at a corresponding position of the groove address of the same track, and replaces a bit at the address uncertain position of the groove address with a bit at a corresponding position of the land address of the same track.

    摘要翻译： 光盘装置包括：格雷码检测器，用于检测轨道地址的格雷码;位置检测器，用于检测作为地址不确定位置的轨道地址的检测格雷码的最低有效位和检测到的比特位 轨道地址的格雷码，并且比最低有效码位“1”的比特位置高一位，以及替换单元，用于将地址地址的地址不确定位置的位替换为相应位置的位 同一轨道的槽地址，并用槽位地址的地址不确定位置的位替换相同轨道的地址地址对应位置的位。

    Signal evaluation method, information recording/reproducing apparatus, information reproducing apparatus, and information recording medium
    76.
    发明授权
    Signal evaluation method, information recording/reproducing apparatus, information reproducing apparatus, and information recording medium 失效
    信号评估方法，信息记录/再现装置，信息再现装置和信息记录介质

    公开(公告)号：US07428203B2

    公开(公告)日：2008-09-23

    申请号：US10763247

    申请日：2004-01-26

    申请人： Yutaka Kashihara ,  Yuji Nagai ,  Shuichi Ookubo ,  Masatsugu Ogawa ,  Masaki Nakano ,  Toshiaki Iwanaga

    发明人： Yutaka Kashihara ,  Yuji Nagai ,  Shuichi Ookubo ,  Masatsugu Ogawa ,  Masaki Nakano ,  Toshiaki Iwanaga

    IPC分类号： G11B20/18

    CPC分类号： G11B20/10101 ,  G11B7/0062 ,  G11B20/10009 ,  G11B20/10055 ,  G11B20/10111 ,  G11B20/1816

    摘要： Reproduction signals include patterns for which recognition errors are likely. With respect to such patterns, probable error patterns are prepared. Tables showing correct patterns and error patterns are prepared, and evaluation values accurately representing signal quality are calculated. In an apparatus using a PRML method, discrimination data and a plurality of predetermined bit sequence pairs are examined to detect matching. A bit sequence and corresponding two ideal responses are calculated. Euclidean distances between the two ideal responses and equalization signals are obtained, and the difference between the Euclidean distances is further obtained. A quality evaluation value of a reproduction signal is calculated based on a mean value, a standard deviation, an appearance probability of the predetermined bit sequence, and a Hamming distance between the predetermined bit sequence pairs.

    摘要翻译： 繁殖信号包括识别错误可能的模式。 关于这种模式，准备可能的错误模式。 准备显示正确图案和错误图案的表格，并计算准确表示信号质量的评价值。 在使用PRML方法的装置中，检查鉴别数据和多个预定位序列对以检测匹配。 计算一个位序列和相应的两个理想响应。 获得两个理想响应和均衡信号之间的欧氏距离，并进一步获得欧氏距离之间的差异。 基于平均值，标准偏差，预定比特序列的出现概率以及预定比特序列对之间的汉明距离来计算再现信号的质量评估值。