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    REPRODUCTION SIGNAL EVALUATION METHOD, REPRODUCTION SIGNAL EVALUATION UNIT, AND OPTICAL DISK DEVICE ADOPTING THE SAME
    4.
    发明申请
    REPRODUCTION SIGNAL EVALUATION METHOD, REPRODUCTION SIGNAL EVALUATION UNIT, AND OPTICAL DISK DEVICE ADOPTING THE SAME 有权
    生殖信号评估方法，生殖信号评估单元和采用该方法的光盘装置

    公开(公告)号：US20100214895A1

    公开(公告)日：2010-08-26

    申请号：US12698284

    申请日：2010-02-02

    申请人： Harumitsu Miyashita ,  Yasumori Hino ,  Junya Shiraishi ,  Shoei Kobayashi

    发明人： Harumitsu Miyashita ,  Yasumori Hino ,  Junya Shiraishi ,  Shoei Kobayashi

    IPC分类号： G11B20/18

    CPC分类号： G11B20/10009 ,  G11B20/1012 ,  G11B20/10481 ,  G11B20/1816 ,  G11B2220/2537

    摘要： A reproduction signal evaluation unit has: a pattern detection section for extracting, from a binary signal, a specific state transition pattern which has a possibility of causing a bit error; a differential metric computing section for computing a differential metric based on the binary signal of the extracted state transition pattern; an error computing section for computing an error rate predicted based on an integration value that is integrated by an integration section, a count value that is counted by a pattern count section, an integration value that is integrated by another integration section, and a count value that is counted by another pattern count section, and a standard deviation computing section for computing a standard deviation based on the computed error rate.

    摘要翻译： 再现信号评估单元具有：模式检测部分，用于从二进制信号中提取具有引起位错误的可能性的特定状态转换模式; 差分度量计算部分，用于基于所提取的状态转变模式的二进制信号来计算差分度量; 用于计算基于由积分部分积分的积分值，由图案计数部分计数的计数值，由另一积分部分积分的积分值和计数值的误差率的误差计算部分 其由另一模式计数部分计数，以及标准偏差计算部分，用于基于计算出的错误率来计算标准偏差。

    REPRODUCTION SIGNAL EVALUATION METHOD, REPRODUCTION SIGNAL EVALUATION UNIT, AND OPTICAL DISK DEVICE ADOPTING THE SAME
    5.
    发明申请
    REPRODUCTION SIGNAL EVALUATION METHOD, REPRODUCTION SIGNAL EVALUATION UNIT, AND OPTICAL DISK DEVICE ADOPTING THE SAME 失效
    生殖信号评估方法，生殖信号评估单元和采用该方法的光盘装置

    公开(公告)号：US20100002556A1

    公开(公告)日：2010-01-07

    申请号：US12496096

    申请日：2009-07-01

    申请人： Harumitsu MIYASHITA ,  Yasumori Hino ,  Junya Shiraishi ,  Shoei Kobayashi

    发明人： Harumitsu MIYASHITA ,  Yasumori Hino ,  Junya Shiraishi ,  Shoei Kobayashi

    IPC分类号： G11B7/00

    CPC分类号： G11B20/10009 ,  G11B20/10027 ,  G11B20/10046 ,  G11B20/10055 ,  G11B20/1012 ,  G11B20/10212 ,  G11B20/10277 ,  G11B20/10296 ,  G11B20/10361 ,  G11B20/1037 ,  G11B20/10398 ,  G11B20/10425 ,  G11B20/10472 ,  G11B20/10481 ,  G11B20/1816 ,  G11B20/182 ,  G11B20/22 ,  G11B2220/2541

    摘要： A reproduction signal evaluation method for evaluating quality of a reproduction signal reproduced from an information recording medium based on a binary signal generated from the reproduction signal using a PRML signal processing system, includes: a pattern extraction step of extracting, from the binary signal, a specific state transition pattern which has the possibility of causing a bit error; a step of computing a differential metric based on the binary signal; an extraction step of extracting the differential metric which is not greater than a predetermined signal processing threshold; a step of determining a mean value of the differential metrics which are not greater than the signal processing threshold and extracted in the extraction step; a standard deviation computing step of determining a standard deviation which corresponds to an error rate predicted from the mean value; and an evaluation step of evaluating a quality of the reproduction signal using the standard deviation.

    摘要翻译： 一种用于基于使用PRML信号处理系统从再现信号产生的二进制信号从信息记录介质再现的再现信号的质量评估的再现信号评估方法，包括：模式提取步骤，从二进制信号中提取 具有导致位错误的可能性的特定状态转换模式; 基于二进制信号计算差分度量的步骤; 提取步骤，提取不大于预定信号处理阈值的差分度量; 确定不大于信号处理阈值并在提取步骤中提取的差分度量的平均值的步骤; 标准偏差计算步骤，用于确定与从所述平均值预测的误差率对应的标准偏差; 以及评估步骤，使用标准偏差来评估再现信号的质量。

    Reproduction signal evaluation method, reproduction signal evaluation unit, and optical disk device adopting the same
    6.
    发明授权
    Reproduction signal evaluation method, reproduction signal evaluation unit, and optical disk device adopting the same 有权
    再现信号评估方法，再现信号评估单元和采用该方法的光盘装置

    公开(公告)号：US08248902B2

    公开(公告)日：2012-08-21

    申请号：US12698284

    申请日：2010-02-02

    申请人： Harumitsu Miyashita ,  Yasumori Hino ,  Junya Shiraishi ,  Shoei Kobayashi

    发明人： Harumitsu Miyashita ,  Yasumori Hino ,  Junya Shiraishi ,  Shoei Kobayashi

    IPC分类号： G11B7/00

    CPC分类号： G11B20/10009 ,  G11B20/1012 ,  G11B20/10481 ,  G11B20/1816 ,  G11B2220/2537

    摘要： A reproduction signal evaluation unit includes a pattern detection section for extracting, from a binary signal, a specific state transition pattern which has a possibility of causing a bit error; a differential metric computing section for computing a differential metric based on the binary signal of the extracted state transition pattern; an error computing section for computing an error rate predicted based on an integration value that is integrated by an integration section, a count value that is counted by a pattern count section, an integration value that is integrated by another integration section, and a count value that is counted by another pattern count section, and a standard deviation computing section for computing a standard deviation based on the computed error rate.

    摘要翻译： 再现信号评估单元包括：模式检测部分，用于从二进制信号中提取具有引起位错误的可能性的特定状态转换模式; 差分度量计算部分，用于基于所提取的状态转变模式的二进制信号来计算差分度量; 用于计算基于由积分部分积分的积分值，由图案计数部分计数的计数值，由另一积分部分积分的积分值和计数值的误差率的误差计算部分 其由另一模式计数部分计数，以及标准偏差计算部分，用于基于计算出的错误率来计算标准偏差。

    Reproduction signal evaluation method, reproduction signal evaluation unit, and optical disk device adopting the same
    8.
    发明授权
    Reproduction signal evaluation method, reproduction signal evaluation unit, and optical disk device adopting the same 失效
    再现信号评估方法，再现信号评估单元和采用该方法的光盘装置

    公开(公告)号：US08159918B2

    公开(公告)日：2012-04-17

    申请号：US12496096

    申请日：2009-07-01

    申请人： Harumitsu Miyashita ,  Yasumori Hino ,  Junya Shiraishi ,  Shoei Kobayashi

    发明人： Harumitsu Miyashita ,  Yasumori Hino ,  Junya Shiraishi ,  Shoei Kobayashi

    IPC分类号： G11B7/00

    CPC分类号： G11B20/10009 ,  G11B20/10027 ,  G11B20/10046 ,  G11B20/10055 ,  G11B20/1012 ,  G11B20/10212 ,  G11B20/10277 ,  G11B20/10296 ,  G11B20/10361 ,  G11B20/1037 ,  G11B20/10398 ,  G11B20/10425 ,  G11B20/10472 ,  G11B20/10481 ,  G11B20/1816 ,  G11B20/182 ,  G11B20/22 ,  G11B2220/2541

    摘要： A reproduction signal evaluation method evaluates the quality of a reproduction signal reproduced from an information recording medium based on a binary signal generated from the reproduction signal using a PRML signal processing system. The method includes a pattern extraction step of extracting, from the binary signal, a specific state transition pattern which has the possibility of causing a bit error; a step of computing a differential metric based on the binary signal; an extraction step of extracting the differential metric which is not greater than a predetermined signal processing threshold; a step of determining a mean value of the differential metrics which are not greater than the signal processing threshold and extracted in the extraction step; a standard deviation computing step of determining a standard deviation which corresponds to an error rate predicted from the mean value; and an evaluation step of evaluating a quality of the reproduction signal using the standard deviation.

    摘要翻译： 再现信号评估方法基于使用PRML信号处理系统从再现信号生成的二进制信号来评估从信息记录介质再现的再现信号的质量。 该方法包括：模式提取步骤，从二进制信号中提取具有引起位错误的可能性的特定状态转换模式; 基于二进制信号计算差分度量的步骤; 提取步骤，提取不大于预定信号处理阈值的差分度量; 确定不大于信号处理阈值并在提取步骤中提取的差分度量的平均值的步骤; 标准偏差计算步骤，用于确定与从所述平均值预测的误差率对应的标准偏差; 以及评估步骤，使用标准偏差来评估再现信号的质量。

    Reproduction signal evaluation method, information recording medium, reproduction apparatus and recording apparatus
    9.
    发明授权
    Reproduction signal evaluation method, information recording medium, reproduction apparatus and recording apparatus 有权
    再现信号评估方法，信息记录介质，再现装置和记录装置

    公开(公告)号：US08179760B2

    公开(公告)日：2012-05-15

    申请号：US12573200

    申请日：2009-10-05

    申请人： Kiyotaka Ito ,  Yasumori Hino ,  Harumitsu Miyashita ,  Isao Kobayashi

    发明人： Kiyotaka Ito ,  Yasumori Hino ,  Harumitsu Miyashita ,  Isao Kobayashi

    IPC分类号： G11B5/09 ,  G11B20/10 ,  G11B27/36 ,  G11B7/0045

    CPC分类号： G11B7/0037 ,  G11B7/005 ,  G11B7/24038 ,  G11B20/10009 ,  G11B20/10055 ,  G11B20/10296 ,  G11B20/1816 ,  G11B2007/0013

    摘要： A reproduction signal evaluation method according to the present invention relates to adjustment of an edge portion between a shortest mark and a shortest space in a data sequence including marks and spaces in combination that is recordable on an information recording medium. In a pattern including a shortest mark and a shortest space adjacent before or after the shortest mark, a shift amount of an edge of the shortest mark is obtained from a differential metric calculated regarding one of a first pattern in which a space adjacent to the shortest mark and not adjacent to the shortest space is longer than the shortest space; and a second pattern in which a mark adjacent to the shortest space and not adjacent to the shortest mark is longer than the shortest mark.

    摘要翻译： 根据本发明的再现信号评估方法涉及在包括可记录在信息记录介质上的组合的数据序列中的最短标记和最短空间之间的边缘部分的调整。 在包括最短标记和在最短标记之前或之后相邻的最短空格的图案中，从针对与最短标记相邻的空格的第一图案之一计算的差分度量获得最短标记的边缘的偏移量 标记与不相邻的最短空间长于最短空间; 以及第二图案，其中与最短空间相邻并且不与最短标记相邻的标记比最短标记长。

    Recording Condition Optimizing Method, Information Recording/Reproducing Device, And Integrated Circuit Device
    10.
    发明申请
    Recording Condition Optimizing Method, Information Recording/Reproducing Device, And Integrated Circuit Device 审中-公开
    记录条件优化方法，信息记录/再现装置和集成电路装置

    公开(公告)号：US20080074969A1

    公开(公告)日：2008-03-27

    申请号：US11631937

    申请日：2005-06-23

    申请人： Harumitsu Miyashita ,  Yasumori Hino ,  Tetsuya Shihara

    发明人： Harumitsu Miyashita ,  Yasumori Hino ,  Tetsuya Shihara

    IPC分类号： G11B15/52

    CPC分类号： G11B20/10009 ,  G11B7/00456 ,  G11B7/1267 ,  G11B20/10046 ,  G11B20/10481

    摘要： It is an object to minimize the effect of the reproduction transmission path characteristics or optical characteristics of an optical head, and more suitably adjust recording conditions. The recording condition optimization method of the present invention involves optimizing recording conditions in the recording of information to an optical disk (100), comprising a recording step (1103) of recording a recording pattern including a plurality of recording marks to the optical disk using specific recording conditions, a reproduction step (1102) of reproducing the recording pattern recorded in the recording step (1103), an equalization characteristics setting step (1101) of setting waveform equalization characteristics according to the recording pattern, an equalization step (1105) of using the waveform equalization characteristics set in the equalization characteristics setting step (1101) to equalize the waveform of the reproduction signal reproduced in the reproduction step (1102), and an adjustment step (1104) of using the reproduction signal whose waveform has been equalized in the equalization step (1105) to adjust the recording conditions.

    摘要翻译： 本发明的目的是最小化光头的再现传输路径特性或光学特性的影响，并且更适当地调节记录条件。 本发明的记录条件优化方法涉及将信息记录中的记录条件优化到光盘（100），其包括使用特定的记录步骤（1103）将包括多个记录标记的记录图案记录到光盘 记录条件，再现记录在记录步骤（1103）中的记录模式的再现步骤（1102），根据记录模式设置波形均衡特性的均衡特性设置步骤（1101），使用 均衡特性设定步骤（1101）中设定的波形均衡特性，用于均衡再现步骤（1102）中再现的再现信号的波形，以及使用其波形已被均衡的再现信号的调整步骤（1104） 均衡步骤（1105），以调节记录条件。