公开(公告)号：US20100080095A1

公开(公告)日：2010-04-01

申请号：US12243086

申请日：2008-10-01

申请人： Isao KOBAYASHI ,  Atsushi NAKAMURA ,  Yasumori HINO

发明人： Isao KOBAYASHI ,  Atsushi NAKAMURA ,  Yasumori HINO

IPC分类号： G11B20/00

CPC分类号： G11B7/0062

摘要： Information is recorded on an information recording medium by classifying recording conditions by data pattern, including at least one recording mark and at least one space, of a data stream to be recorded; wherein the classification of the recording conditions by data pattern is performed using a combination of the length of a first recording mark included in the data stream and the length of a first space located adjacently previous or subsequent to the first recording mark, and then further performed using the length of a second recording mark which is not located adjacent to the first recording mark and is located adjacent to the first space. Alternatively, the classification of the recording conditions by data pattern is performed using a combination of the length of a first recording mark included in the data stream and the length of a first space located adjacently previous or subsequent to the first recording mark, and then further performed using the length of a second space which is not located adjacent to the first space and is located adjacent to the first recording mark.

摘要翻译： 信息记录在信息记录介质上，通过数据模式分类记录条件，包括要被记录的数据流的至少一个记录标记和至少一个空间; 其中通过数据图案的记录条件的分类是使用包括在数据流中的第一记录标记的长度与位于第一记录标记之前或之后相邻的第一空间的长度的组合来执行的，然后进一步执行 使用不位于与第一记录标记相邻并且位于第一空间附近的第二记录标记的长度。 或者，使用数据流中包括的第一记录标记的长度与位于第一记录标记之前或之后相邻的第一空间的长度的组合来执行通过数据模式对记录条件的分类，然后进一步 使用不位于与第一空间相邻并且位于第一记录标记附近的第二空间的长度来执行。

公开(公告)号：US20100142338A1

公开(公告)日：2010-06-10

申请号：US12570063

申请日：2009-09-30

申请人： Isao KOBAYASHI ,  Atsushi NAKAMURA ,  Yasumori HINO

发明人： Isao KOBAYASHI ,  Atsushi NAKAMURA ,  Yasumori HINO

IPC分类号： G11B20/00 ,  G11B7/24 ,  G11B27/36

CPC分类号： G11B7/0062

摘要： An information recording medium according to the present invention includes a track on which a data sequence including a plurality of recording marks and a plurality of spaces provided between the plurality of recording marks is recordable; and a recording condition recording area in which a recording condition for recording the data sequence on the track is recordable. Where a recording mark which is included in the data sequence and is to be formed on the track based on the recording condition is a first recording mark, when a length of the first recording mark is longer than a prescribed length, the recording condition is classified using a combination of the length of the first recording mark and a length of a first space located adjacently previous or subsequent to the first recording mark, and when the length of the first recording mark is equal to or shorter than the prescribed length, the recording condition is classified using a combination of the length of the first recording mark, the length of the first space, and a length of a second space not located adjacent to the first space and located adjacent to the first recording mark.

摘要翻译： 根据本发明的信息记录介质包括其上可以记录包括多个记录标记的数据序列和多个记录标记之间设置的多个空间的轨道; 以及记录条件记录区，其中用于记录轨道上的数据序列的记录条件是可记录的。 在基于记录条件包括在数据序列中并要形成在轨道上的记录标记是第一记录标记的情况下，当第一记录标记的长度长于规定长度时，记录条件被分类 使用第一记录标记的长度与位于第一记录标记之前或之后相邻的第一空间的长度的组合，并且当第一记录标记的长度等于或短于规定长度时，记录 使用第一记录标记的长度，第一空间的长度和不位于与第一空间相邻并且位于第一记录标记附近的第二空间的长度的组合对条件进行分类。

公开(公告)号：US20100097908A1

公开(公告)日：2010-04-22

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： G11B27/36

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 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。

公开(公告)号：US20100085851A1

公开(公告)日：2010-04-08

申请号：US12244231

申请日：2008-10-02

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： G11B20/10009 ,  G11B20/10046 ,  G11B20/10055 ,  G11B20/1012 ,  G11B20/10212 ,  G11B20/10296 ,  G11B20/10481 ,  G11B20/1816 ,  G11B20/182 ,  G11B2220/2537 ,  G11B2220/2541

摘要： The present invention has an object of evaluating a recording and reproduction signal quality of a high density information recording medium by providing an index representing, in a detection signal including a plurality of pieces of edge shift information, how each edge is shifted. A signal evaluation method, usable for an information recording medium having a data sequence including a mark and a space located alternately, for generating a binary signal from a signal obtained by reproducing the data sequence using a PRML signal processing method and evaluating a likelihood of the binary signal, includes a differential metric calculation step of calculating, from the binary signal, a differential metric which is a difference of a reproduction signal from a first state transition matrix having a maximum likelihood and a second state transition matrix having a second maximum likelihood; and a step of classifying the differential metric to any of a plurality of data patterns each including at least one mark and at least one space. The data pattern classification to any of the plurality of data patterns is performed using a combination of a length of a first mark included in the data sequence and a length of a first space adjacently located immediately previous or immediately subsequent to the first mark, and is further performed using a length of a second mark which is not adjacent to the first mark and located adjacent to the first space; and thus a reproduction signal quality of the information recording medium is evaluated.

摘要翻译： 本发明的目的是通过提供一种在包括多个边缘移位信息的检测信号中表示每个边缘如何偏移的指标来评估高密度信息记录介质的记录和再现信号质量。 一种信号评估方法，可用于具有包括标记和交替定位的空间的数据序列的信息记录介质，用于通过使用PRML信号处理方法再现数据序列获得的信号产生二进制信号，并评估 二进制信号包括差分量度计算步骤，从二进制信号计算作为具有最大似然的第一状态转移矩阵的再现信号和具有第二最大似然的第二状态转移矩阵的差的差分度量; 以及将差分度量分类为多个数据模式中的每一个包括至少一个标记和至少一个空间的步骤。 使用数据序列中包括的第一标记的长度与紧邻在第一标记之前或之后紧邻的第一空间的长度的组合来执行对多个数据模式中的任何数据模式的数据模式分类，并且是 使用与第一标记不相邻且位于第一空间附近的第二标记的长度进一步执行; 因此评估信息记录介质的再现信号质量。

公开(公告)号：US20100118673A1

公开(公告)日：2010-05-13

申请号：US12267550

申请日：2008-11-07

申请人： Atsushi NAKAMURA ,  Kenji FUJIUNE ,  Yasumori HINO

发明人： Atsushi NAKAMURA ,  Kenji FUJIUNE ,  Yasumori HINO

IPC分类号： G11B20/18

CPC分类号： G11B20/1816 ,  G11B7/0079 ,  G11B7/268 ,  G11B20/10046 ,  G11B2220/2537

摘要： A method for inspecting an optical information storage medium includes the steps of: irradiating the storage medium with a laser beam and rotating the medium by a constant linear velocity control technique by reference to the radial location at which the laser beam forms a spot on the medium; changing the rotational velocities according to the radial location on the medium between at least two linear velocities that include a first linear velocity Lv1 and a second linear velocity Lv2 higher than the first linear velocity Lv1; generating a focus error signal and/or a tracking error signal based on the light reflected from the medium; performing a focus control and/or a tracking control on the laser beam that irradiates the medium based on the focus and/or tracking error signal(s); and passing the branched outputs of control loops for the focus and/or tracking error signal(s) through predetermined types of frequency band-elimination filters for the focus and/or tracking error signal(s) to obtain residual errors of the focus and/or tracking error signal(s) and comparing the residual errors to predetermined reference values.

公开(公告)号：US20100110853A1

公开(公告)日：2010-05-06

申请号：US12261309

申请日：2008-10-30

申请人： Atsushi NAKAMURA ,  Kenji FUJIUNE ,  Yasumori HINO

发明人： Atsushi NAKAMURA ,  Kenji FUJIUNE ,  Yasumori HINO

IPC分类号： G11B7/00

CPC分类号： G11B7/268 ,  G11B7/00375 ,  G11B7/0079

摘要： A method for inspecting an optical information storage medium includes the steps of: irradiating the storage medium with a laser beam and rotating the medium by a constant linear velocity control technique by reference to the radial location at which the laser beam forms a spot on the medium; changing the rotational velocities according to the radial location on the medium between at least two linear velocities that include a first linear velocity Lv1 and a second linear velocity Lv2 higher than the first linear velocity Lv1; generating a focus error signal and/or a tracking error signal based on the light reflected from the medium; performing a focus control and/or a tracking control on the laser beam that irradiates the medium based on the focus and/or tracking error signal(s); and passing the branched outputs of control loops for the focus and/or tracking error signal(s) through predetermined types of frequency band-elimination filters for the focus and/or tracking error signal(s) to obtain residual errors of the focus and/or tracking error signal(s) and comparing the residual errors to predetermined reference values.

摘要翻译： 一种用于检查光学信息存储介质的方法包括以下步骤：通过参考激光束在介质上形成点的径向位置，通过恒定的线速度控制技术照射存储介质和激光介质 ; 根据包括第一线速度Lv1和高于第一线速度Lv1的第二线速度Lv2的至少两个线性速度，根据介质上的径向位置改变旋转速度; 基于从介质反射的光产生聚焦误差信号和/或跟踪误差信号; 对基于焦点和/或跟踪误差信号照射介质的激光束进行聚焦控制和/或跟踪控制; 以及通过用于焦点和/或跟踪误差信号的预定类型的频带滤波器使用于聚焦和/或跟踪误差信号的控制回路的分支输出通过，以获得焦点和/ 或跟踪误差信号，并将剩余误差与预定参考值进行比较。

公开(公告)号：US20090147645A1

公开(公告)日：2009-06-11

申请号：US12272114

申请日：2008-11-17

申请人： Atsushi NAKAMURA ,  Kenji FUJIUNE ,  Yasumori HINO

发明人： Atsushi NAKAMURA ,  Kenji FUJIUNE ,  Yasumori HINO

IPC分类号： G11B20/18

CPC分类号： G11B20/10009 ,  G11B20/10046 ,  G11B20/1816 ,  G11B2220/218 ,  G11B2220/2541

摘要： A method for inspecting an optical information storage medium includes the steps of: irradiating the storage medium with a laser beam and rotating the medium by a constant linear velocity control technique by reference to the radial location at which the laser beam forms a spot on the medium; changing the rotational velocities according to the radial location on the medium between at least two linear velocities that include a first linear velocity Lv1 and a second linear velocity Lv2 higher than the first linear velocity Lv1; generating a focus error signal and/or a tracking error signal based on the light reflected from the medium; performing a focus control and/or a tracking control on the laser beam that irradiates the medium based on the focus and/or tracking error signal(s); and passing the branched outputs of control loops for the focus and/or tracking error signal(s) through predetermined types of frequency band-elimination filters for the focus and/or tracking error signal(s) to obtain residual errors of the focus and/or tracking error signal(s) and comparing the residual errors to predetermined reference values.

摘要翻译： 一种用于检查光学信息存储介质的方法包括以下步骤：通过参考激光束在介质上形成点的径向位置，通过恒定的线速度控制技术照射存储介质和激光介质 ; 根据包括第一线速度Lv1和高于第一线速度Lv1的第二线速度Lv2的至少两个线性速度，根据介质上的径向位置改变旋转速度; 基于从介质反射的光产生聚焦误差信号和/或跟踪误差信号; 对基于焦点和/或跟踪误差信号照射介质的激光束进行聚焦控制和/或跟踪控制; 以及通过用于焦点和/或跟踪误差信号的预定类型的频带滤波器使用于聚焦和/或跟踪误差信号的控制回路的分支输出通过，以获得焦点和/ 或跟踪误差信号，并将剩余误差与预定参考值进行比较。

公开(公告)号：US20100290326A1

公开(公告)日：2010-11-18

申请号：US12719912

申请日：2010-03-09

申请人： Kiyotaka ITO ,  Mamoru SHOJI ,  Yasumori HINO ,  Atsushi NAKAMURA ,  Naoyasu MIYAGAWA ,  Motoshi ITO

发明人： Kiyotaka ITO ,  Mamoru SHOJI ,  Yasumori HINO ,  Atsushi NAKAMURA ,  Naoyasu MIYAGAWA ,  Motoshi ITO

IPC分类号： G11B20/10 ,  G11B7/26 ,  B32B37/02

CPC分类号： G11B7/00736 ,  G11B7/00456

摘要： The present invention provides a measure for getting read/write control information stored within a space of a predetermined size in a format that ensures compatibility with media of a lower order or an older generation even if the size of the read/write control information increases significantly as the storage densities of information storage media rise in the near future. On an information storage medium, a data sequence is writable as a combination of marks and spaces. The medium has at least one information storage layer, which has an information storage area to store information and a control information area for use to perform a read/write operation on the at least one information storage layer. The control information area stores at least one set of control information, which includes a first kind of write pulse information including information to be used as a reference value and a second kind of write pulse information including information to be used as an offset value. The size of the offset value is at least a half as large as that of the reference value.

摘要翻译： 本发明提供一种用于获得存储在预定大小的空间内的读/写控制信息的措施，即使读/写控制信息的大小显着增加，也可以确保与较低级别或较旧版本的媒体兼容的格式 随着信息存储媒体的存储密度在不久的将来上升。 在信息存储介质上，作为标记和空格的组合可写入数据序列。 介质具有至少一个信息存储层，其具有用于存储信息的信息存储区域和用于对至少一个信息存储层执行读/写操作的控制信息区域。 控制信息区域存储至少一组控制信息，该组控制信息包括包括要用作参考值的信息的第一种写入脉冲信息和包括要用作偏移值的信息的第二种写入脉冲信息。 偏移值的大小至少是参考值的一半。

公开(公告)号：US20100232270A1

公开(公告)日：2010-09-16

申请号：US12718071

申请日：2010-03-05

申请人： Atsushi NAKAMURA ,  Naoyasu MIYAGAWA ,  Kiyotaka ITO ,  Mamoru SHOJI ,  Yasumori HINO

发明人： Atsushi NAKAMURA ,  Naoyasu MIYAGAWA ,  Kiyotaka ITO ,  Mamoru SHOJI ,  Yasumori HINO

IPC分类号： G11B20/10 ,  G11B7/26

CPC分类号： G11B7/00736 ,  G11B7/00454 ,  G11B7/00456 ,  G11B7/24038

摘要： An optical information storage medium according to the present invention has at least one information storage layer. The optical information storage medium has a management area that stores at least one unit containing control information about the optical information storage medium. The control information includes a format number, which provides information about at least a write strategy type and a write pre-compensation type, and a write strategy parameter, which provides information about the magnitude of shift in an edge position, or variation in the pulse width, of a write pulse train to form a recording mark. And the value of the format number changes according to a combination of the write strategy type and the write pre-compensation type.

摘要翻译： 根据本发明的光学信息存储介质具有至少一个信息存储层。 光信息存储介质具有存储包含关于光信息存储介质的控制信息的至少一个单元的管理区域。 控制信息包括提供关于至少写入策略类型和写入预补偿类型的信息的格式编号，以及写入策略参数，其提供关于边缘位置的移位幅度或脉冲变化的信息 写入脉冲串的宽度以形成记录标记。 并且格式编号的值根据写策略类型和写预补偿类型的组合而改变。

公开(公告)号：US20100103793A1

公开(公告)日：2010-04-29

申请号：US12258562

申请日：2008-10-27

申请人： Atsushi NAKAMURA ,  Naoyasu MIYAGAWA ,  Shigeru FURUMIYA ,  Yasumori HINO ,  Motoshi ITO ,  Mamoru SHOJI ,  Yoshihisa TAKAHASHI

发明人： Atsushi NAKAMURA ,  Naoyasu MIYAGAWA ,  Shigeru FURUMIYA ,  Yasumori HINO ,  Motoshi ITO ,  Mamoru SHOJI ,  Yoshihisa TAKAHASHI

IPC分类号： G11B7/00

CPC分类号： G11B7/00736 ,  G11B7/1267 ,  G11B7/24038 ,  G11B2007/0013

摘要： The present invention provides a novel physical structure for a multilayer optical information recording medium including a plurality of information recording layers, and a recording method and a recording/reproduction apparatus for such a recording medium using the same. The multilayer optical information recording medium according to the present invention includes a test recording area for performing test recording for data recording and/or reproduction conditions in at least one of an inner zone and an outer zone. The test recording area is categorized as one of at least two categories of test recording areas (OPC-A area and OPC-B area). In the OPC-B area, an upper limit value is set on a recording power for the test recording.

摘要翻译： 本发明提供了一种用于包括多个信息记录层的多层光学信息记录介质的新型物理结构，以及用于使用该多个记录层的记录介质的记录方法和记录/再现装置。 根据本发明的多层光学信息记录介质包括用于在内部区域和外部区域中的至少一个中执行数据记录和/或再现条件的测试记录的测试记录区域。 测试记录区域被分类为至少两类测试记录区域（OPC-A区域和OPC-B区域）之一。 在OPC-B区域中，对测试记录的记录功率设定上限值。