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11. 发明申请

US20080205231A1 Optical Disc Recording Pulse Control Method, and Control Device and Optical Disc Device Employed Therein 审中-公开
标题翻译：光盘记录脉冲控制方法，以及其中使用的控制装置和光盘装置
公开(公告)号：US20080205231A1
公开(公告)日：2008-08-28
申请号：US11632861
申请日：2005-07-21
申请人： Harumitsu Miyashita , Tetsuya Shihara , Yasumori Hino
发明人： Harumitsu Miyashita , Tetsuya Shihara , Yasumori Hino
IPC分类号： G11B20/18 , G11B7/0045
CPC分类号： G11B7/1267 , G11B7/00456 , G11B7/0062
摘要： There are problems that recording degradation happens, and an error occurs in reproduction unless appropriate recording pulse conditions are determined. A recording pulse controlling method according to the present invention is a recording pulse controlling method for adjusting recording pulses for recording information on a writable optical disc, which includes a mark length adjustment step and a mark position adjustment step. The mark length adjustment step is a step for adjusting a recording mark length adjustment parameter, and the recording mark length adjustment parameter is adjusted to have a value for forming a recording mark having a length closest to a predetermined recording mark length. The mark position adjustment step is a step for adjusting a recording mark position adjustment parameter after the mark length adjustment step, and the recording mark position adjustment parameter is adjusted to have a value for forming a recording mark at a position closest to a predetermined recording mark position.
摘要翻译：存在记录劣化发生的问题，并且除非确定适当的记录脉冲条件，否则在再现中发生错误。根据本发明的记录脉冲控制方法是一种用于在包括标记长度调节步骤和标记位置调整步骤的可写入光盘上调节用于记录信息的记录脉冲的记录脉冲控制方法。标记长度调整步骤是用于调整记录标记长度调整参数的步骤，并且将记录标记长度调节参数调整为具有用于形成具有最接近预定记录标记长度的长度的记录标记的值。标记位置调整步骤是在标记长度调整步骤之后调整记录标记位置调整参数的步骤，并且将记录标记位置调节参数调节为具有在最接近预定记录标记的位置处形成记录标记的值位置。

12. 发明授权

US08248902B2 Reproduction signal evaluation method, reproduction signal evaluation unit, and optical disk device adopting the same 有权
标题翻译：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。

13. 发明申请

US20100302925A1 REPRODUCED SIGNAL EVALUATING METHOD, INFORMATION RECORDING MEDIUM, REPRODUCING DEVICE, AND RECORDING DEVICE 有权
标题翻译：再现的信号评估方法，信息记录介质，再现装置和记录装置
公开(公告)号：US20100302925A1
公开(公告)日：2010-12-02
申请号：US12745297
申请日：2009-09-29
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： G11B27/36
CPC分类号： G11B20/1403 , G11B7/0037 , G11B7/00458 , G11B7/005 , G11B7/24038 , G11B20/10009 , G11B20/10055 , G11B20/1012 , G11B20/10287 , G11B20/10296 , G11B20/10407 , G11B20/10481 , G11B20/1049 , G11B20/1816 , G11B2007/0013 , G11B2220/235 , G11B2220/2541
摘要： A reproduction signal evaluation method according to the present invention includes a step of generating a binary signal from an information recording medium on which a data sequence including marks and spaces in combination is recordable, using a PRML signal processing method from a signal obtained by reproducing the data sequence; and a differential calculation step of calculating a differential metric using a first state transition path having a maximum likelihood and a second state transition path having a second maximum likelihood, and a reproduction signal, the first state transition path and the second state transition path being obtained based on the binary signal. 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包括从信息记录介质生成二进制信号的步骤，在该信息记录介质上，包括组合的记号和空格的数据序列可记录，使用PRML信号处理方法从通过再现数据序列; 以及差分计算步骤，使用具有最大似然的第一状态转移路径和具有第二最大似然度的第二状态转移路径以及再现信号来计算差分度量，获得第一状态转换路径和第二状态转换路径基于二进制信号。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。

14. 发明授权

US07646686B2 Recording/reproduction apparatus which adjusts recording power based on a partial response maximum likelihood (PRML) technique 有权
标题翻译：基于部分响应最大似然（PRML）技术调节记录功率的记录/再现装置
公开(公告)号：US07646686B2
公开(公告)日：2010-01-12
申请号：US10981869
申请日：2004-11-05
申请人： Harumitsu Miyashita , Takeshi Nakajima , Mamoru Shoji , Yasumori Hino
发明人： Harumitsu Miyashita , Takeshi Nakajima , Mamoru Shoji , Yasumori Hino
IPC分类号： G11B7/00
CPC分类号： G11B7/1267 , G11B7/0053 , G11B7/0062 , G11B7/00736
摘要： A recording/reproduction apparatus, comprising a first recording section for recording test information onto a medium using at least one recording power, a reproduction section for reproducing at least one test signal indicating the test information from the medium, and a second recording section for recording information onto the medium using one of the at least one recording power. The reproduction section comprises a decoding section for performing maximum likelihood decoding of the at least one test signal and generating at least one binary signal indicating a result of the maximum likelihood decoding, a calculation section for calculating a reliability of the result of the maximum likelihood decoding based on the at least one test signal and the at least one binary signal, and an adjustment section for adjusting a recording power for recording the information onto the medium to the one recording power based on the reliability.
摘要翻译：一种记录/再现装置，包括用于使用至少一个记录功率将测试信息记录在介质上的第一记录部分，用于从介质再现指示测试信息的至少一个测试信号的再现部分和用于记录的第二记录部分使用所述至少一个记录功率之一将信息传送到介质上。再现部分包括：解码部分，用于对所述至少一个测试信号执行最大似然解码，并产生指示最大似然解码结果的至少一个二进制信号;计算部分，用于计算最大似然解码结果的可靠性基于所述至少一个测试信号和所述至少一个二进制信号，以及调整部分，用于基于所述可靠性调整用于将所述信息记录到所述介质上的记录功率与所述一个记录功率。

15. 发明授权

US08243571B2 Reproduced signal evaluating method, information recording medium, reproducing device, and recording device 有权
标题翻译：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：US08243571B2
公开(公告)日：2012-08-14
申请号：US12745297
申请日：2009-09-29
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： G11B20/1403 , G11B7/0037 , G11B7/00458 , G11B7/005 , G11B7/24038 , G11B20/10009 , G11B20/10055 , G11B20/1012 , G11B20/10287 , G11B20/10296 , G11B20/10407 , G11B20/10481 , G11B20/1049 , G11B20/1816 , G11B2007/0013 , G11B2220/235 , G11B2220/2541
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。

16. 发明授权

US08203922B2 Reproduced signal evaluating method, information recording medium, reproducing device, and recording device 有权
公开(公告)号：US08203922B2
公开(公告)日：2012-06-19
申请号：US12745297
申请日：2009-09-29
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
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.

17. 发明申请

US20100214895A1 REPRODUCTION SIGNAL EVALUATION METHOD, REPRODUCTION SIGNAL EVALUATION UNIT, AND OPTICAL DISK DEVICE ADOPTING THE SAME 有权
标题翻译：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。

18. 发明申请

US20100202261A1 OPTICAL RECORDING MEDIUM, OPTICAL RECORDING MEDIUM MANUFACTURING METHOD, REPRODUCTION SIGNAL PROCESSING METHOD AND EVALUATION METHOD 有权
标题翻译：光学记录介质，光记录介质制造方法，生成信号处理方法和评估方法
公开(公告)号：US20100202261A1
公开(公告)日：2010-08-12
申请号：US12376544
申请日：2007-11-30
申请人： Harumitsu Miyashita , Yasumori Hino , Mamoru Shoji , Kiyotaka Itou
发明人： Harumitsu Miyashita , Yasumori Hino , Mamoru Shoji , Kiyotaka Itou
IPC分类号： G11B7/24 , G11B20/10 , G11B27/36 , G11B7/26
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。

19. 发明申请

US20100002556A1 REPRODUCTION SIGNAL EVALUATION METHOD, REPRODUCTION SIGNAL EVALUATION UNIT, AND OPTICAL DISK DEVICE ADOPTING THE SAME 失效
标题翻译：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。

20. 发明授权

US07616544B2 Access unit, access method, computer-readable recording medium recorded with access program, and control unit 有权
标题翻译：访问单元，访问方式，记录有访问程序的计算机可读记录介质和控制单元
公开(公告)号：US07616544B2
公开(公告)日：2009-11-10
申请号：US10591327
申请日：2005-10-21
申请人： Harumitsu Miyashita , Yasumori Hino , Tetsuya Shihara
发明人： Harumitsu Miyashita , Yasumori Hino , Tetsuya Shihara
IPC分类号： G11B7/00
CPC分类号： G11B7/1267 , G11B7/00736
摘要： An access unit, an access method, an access program and a control unit are provided. A record medium includes a user area for recording user data which can be recorded and regenerated based on an instruction given by a user. A recording-system circuit section included in the access unit records test data based on a predetermined test condition in the user area. A regeneration-system circuit section included in the access unit reads the test data recorded in the user area by the recording-system circuit section, and a system control circuit included in the access unit refers to the test data read by the regeneration-system circuit section and adjusts an access parameter for accessing the record medium.
摘要翻译：提供了存取单元，访问方法，访问程序和控制单元。记录介质包括用于记录用户数据的用户区域，用户数据可以基于用户给出的指令进行记录和再生。包含在访问单元中的记录系统电路部分基于用户区域中的预定测试条件记录测试数据。包括在存取单元中的再生系统电路部分通过记录系统电路部分读取记录在用户区域中的测试数据，并且包括在存取单元中的系统控制电路参考由再生系统电路读取的测试数据并调整访问记录介质的访问参数。

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