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公开(公告)号：US08085641B2
公开(公告)日：2011-12-27
申请号：US12836743
申请日：2010-07-15
申请人： Hiroyuki Minemura , Takahiro Kurokawa , Junya Shiraishi , Shoei Kobayashi , Harumitsu Miyashita , Yasumori Hino
发明人： Hiroyuki Minemura , Takahiro Kurokawa , Junya Shiraishi , Shoei Kobayashi , Harumitsu Miyashita , Yasumori Hino
IPC分类号： G11B7/00
CPC分类号： G11B20/10009 , G11B7/00456 , G11B7/00458 , G11B20/10046 , G11B20/1012 , G11B20/10481 , G11B2007/0013 , G11B2220/2541
摘要： The present invention aims to provide a reproduced signal evaluation method and a write adjustment method for offering a Blu-ray disc having a large storage capacity with excellent media compatibility. An evaluation index L-SEAT is calculated through signed addition using a Euclidean distance difference calculated from at least one of target signals in which a focused edge is shifted to the right and left, and the quality of the reproduced signal is evaluated based on the evaluation index. Write condition adjustment using the index enables write adjustment not depending on SNR and achieving high adjustment accuracy.
摘要翻译： 本发明的目的在于提供一种用于提供具有良好的媒体兼容性的具有大存储容量的蓝光盘的再现信号评估方法和写入调整方法。 通过使用从聚焦边缘向左右移动的目标信号中的至少一个计算出的欧几里德距离差，通过带符号相加来计算评价指标L-SEAT，并且基于评估来评估再现信号的质量 指数。 使用该索引的写入条件调整可以使写入调整不依赖于SNR并实现高调整精度。
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公开(公告)号：US20110026383A1
公开(公告)日：2011-02-03
申请号：US12836743
申请日：2010-07-15
申请人： Hiroyuki MINEMURA , Takahiro Kurokawa , Junya Shiraishi , Shoei Kobayashi , Harumitsu Miyashita , Yasumori Hino
发明人： Hiroyuki MINEMURA , Takahiro Kurokawa , Junya Shiraishi , Shoei Kobayashi , Harumitsu Miyashita , Yasumori Hino
CPC分类号： G11B20/10009 , G11B7/00456 , G11B7/00458 , G11B20/10046 , G11B20/1012 , G11B20/10481 , G11B2007/0013 , G11B2220/2541
摘要： The present invention aims to provide a reproduced signal evaluation method and a write adjustment method for offering a Blu-ray disc having a large storage capacity with excellent media compatibility. An evaluation index L-SEAT is calculated through signed addition using a Euclidean distance difference calculated from at least one of target signals in which a focused edge is shifted to the right and left, and the quality of the reproduced signal is evaluated based on the evaluation index. Write condition adjustment using the index enables write adjustment not depending on SNR and achieving high adjustment accuracy.
摘要翻译： 本发明的目的在于提供一种用于提供具有良好的媒体兼容性的具有大存储容量的蓝光盘的再现信号评估方法和写入调整方法。 通过使用从聚焦边缘向左右移动的目标信号中的至少一个计算出的欧几里德距离差，通过带符号相加来计算评价指标L-SEAT，并且基于评估来评估再现信号的质量 指数。 使用该索引的写入条件调整可以使写入调整不依赖于SNR并实现高调整精度。
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3.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
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。
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4.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：US08514682B2
公开(公告)日：2013-08-20
申请号：US13434995
申请日：2012-03-30
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. A pattern extraction step extracts, from the binary signal, a specific state transition pattern which has the possibility of causing a bit error; a step computes a differential metric based on the binary signal; an extraction step extracts the differential metric which is not greater than a predetermined signal processing threshold; a step determines 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 determines a standard deviation which corresponds to an error rate predicted from the mean value; and an evaluation step evaluates 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。 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; 步骤基于二进制信号计算差分度量; 提取步骤提取不大于预定信号处理阈值的差分度量; 步骤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; 标准偏差计算步骤确定与从平均值预测的误差率对应的标准偏差; 并且评估步骤使用标准偏差来评估再现信号的质量。
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5.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
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。
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6.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：US20120201112A1
公开(公告)日：2012-08-09
申请号：US13434995
申请日：2012-03-30
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. A pattern extraction step extracts, from the binary signal, a specific state transition pattern which has the possibility of causing a bit error; a step computes a differential metric based on the binary signal; an extraction step extracts the differential metric which is not greater than a predetermined signal processing threshold; a step determines 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 determines a standard deviation which corresponds to an error rate predicted from the mean value; and an evaluation step evaluates 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。 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; 步骤基于二进制信号计算差分度量; 提取步骤提取不大于预定信号处理阈值的差分度量; 步骤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; 标准偏差计算步骤确定与从平均值预测的误差率对应的标准偏差; 并且评估步骤使用标准偏差来评估再现信号的质量。
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7.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
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。
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8.发明授权Optical recording medium, optical recording medium manufacturing method, reproduction signal processing method and evaluation method 有权光记录介质，光记录介质的制造方法，再现信号处理方法及评价方法公开(公告)号：US08565054B2
公开(公告)日：2013-10-22
申请号：US12376544
申请日：2007-11-30
CPC分类号： G11B20/10009 , G11B20/10046 , G11B20/10111 , G11B20/10481 , G11B2020/122 , G11B2220/2541 , G11B2220/2562
摘要： An optical head 12 reproduces information recorded on an optical disc 11, a BCA detector 21 and a medium discriminating circuit 22 acquire waveform distortion information for specifying a waveform distortion of a reproduction signal reproduced by the optical head 12, and a variable waveform equalizer 16 changes a parameter used in a distortion reduction processing for reducing the waveform distortion of the reproduction signal based on the waveform distortion information.
摘要翻译： 光头12再现记录在光盘11上的信息，BCA检测器21和介质鉴别电路22获取用于指定由光头12再现的再现信号的波形失真的波形失真信息，并且可变波形均衡器16改变 用于基于波形失真信息减少再现信号的波形失真的失真减小处理中使用的参数。
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9.发明授权Recording/reproducing device, recording condition adjusting device and recording/reproducing method 失效记录/再现装置，记录条件调节装置和记录/再现方法公开(公告)号：US08000197B2
公开(公告)日：2011-08-16
申请号：US11995549
申请日：2006-07-18
IPC分类号： G11B7/125
CPC分类号： G11B7/1267 , G11B7/00456 , G11B7/0062
摘要： A calculation of a reliability value |Pa−Pb|−Pstd, representing represents a maximum likelihood decoding result on a portion which corresponds to a start or termination edge of a recording mark and has a high probability of error occurrence by a maximum likelihood decoding method, is performed on each combination of a predetermined mark length and a space length immediately before the mark and each combination of the mark length and a space length immediately after the mark. Based on the calculation result, a recording parameter is optimized, and recording reflecting the optimized recording parameter is performed.
摘要翻译： 代表对应于记录标记的开始或终止边缘的部分并且通过最大似然解码方法具有高错误发生概率的最大似然解码结果的可靠性值| Pa-Pb | -Pstd的计算， 在标记之前的预定标记长度和间隔长度的每个组合以及标记之后的标记长度和间隔长度的每个组合的每个组合上执行。 基于计算结果，优化记录参数，并且执行反映优化记录参数的记录。
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10.发明申请RECORDING/REPRODUCING DEVICE, RECORDING CONDITION ADJUSTING DEVICE AND RECORDING/REPRODUCING METHOD 失效记录/再现装置，记录条件调节装置和记录/再现方法公开(公告)号：US20090034381A1
公开(公告)日：2009-02-05
申请号：US11995549
申请日：2006-07-18
IPC分类号： G11B27/36
CPC分类号： G11B7/1267 , G11B7/00456 , G11B7/0062
摘要： A calculation of a reliability value |Pa−Pb|−Pstd, representing represents a maximum likelihood decoding result on a portion which corresponds to a start or termination edge of a recording mark and has a high probability of error occurrence by a maximum likelihood decoding method, is performed on each combination of a predetermined mark length and a space length immediately before the mark and each combination of the mark length and a space length immediately after the mark. Based on the calculation result, a recording parameter is optimized, and recording reflecting the optimized recording parameter is performed.
摘要翻译： 代表对应于记录标记的开始或终止边缘的部分并且通过最大似然解码方法具有高错误发生概率的最大似然解码结果的可靠性值| Pa-Pb | -Pstd的计算， 在标记之前的预定标记长度和间隔长度的每个组合以及标记之后的标记长度和间隔长度的每个组合的每个组合上执行。 基于计算结果，优化记录参数，并且执行反映优化记录参数的记录。
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