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。

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。

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。

公开(公告)号：US20050128911A1

公开(公告)日：2005-06-16

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： G11B7/004 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/007 ,  G11B7/125 ,  G11B11/00 ,  G11B5/09

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。

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。

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.

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。

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。

公开(公告)号：US20070177468A1

公开(公告)日：2007-08-02

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： G11B21/08

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 which are capable of shortening the seek time of an optical head for a test record and a test regeneration. A record medium 200 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 120 records test data based on a predetermined test condition in the user area; a regeneration-system circuit section 130 reads the test data recorded in the user area by the recording-system circuit section 120; and a system control circuit 102 refers to the test data read by the regeneration-system circuit section 130 and adjusts an access parameter for accessing the record medium 200.

摘要翻译： 提供一种存取单元，访问方法，访问程序和控制单元，其能够缩短用于测试记录和测试再生的光学头的寻道时间。 记录介质200包括用于记录可以基于用户给出的指令来记录和再生的用户数据的用户区域; 记录系统电路部分120根据用户区域中的预定测试条件记录测试数据; 再生系统电路部分130通过记录系统电路部分120读取记录在用户区域中的测试数据; 并且系统控制电路102参考由再生系统电路部分130读取的测试数据，并调整用于访问记录介质200的访问参数。

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。