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1. 发明申请

US20100097908A1 REPRODUCTION SIGNAL EVALUATION METHOD, INFORMATION RECORDING MEDIUM, REPRODUCTION APPARATUS AND RECORDING APPARATUS 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：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。

2. 发明申请

US20100085851A1 METHOD AND APPARATUS FOR EVALUATING INFORMATION RECORDING MEDIUM 审中-公开
标题翻译：用于评估信息记录介质的方法和装置
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。

3. 发明申请

US20090154315A1 INFORMATION RECORDING MEDIUM, RECORDING METHOD, RECORDING APPARATUS AND INTEGRATED CIRCUIT 审中-公开
标题翻译：信息记录介质，记录方法，记录装置和集成电路
公开(公告)号：US20090154315A1
公开(公告)日：2009-06-18
申请号：US12327119
申请日：2008-12-03
申请人： Harumitsu MIYASHITA , Yasumori HINO , Atsushi NAKAMURA , Mamoru SHOJI , Kanji OHNISHI
发明人： Harumitsu MIYASHITA , Yasumori HINO , Atsushi NAKAMURA , Mamoru SHOJI , Kanji OHNISHI
IPC分类号： G11B7/00
CPC分类号： G11B7/00736 , G11B7/0062 , G11B7/1267
摘要： An information storage medium according to the present invention is adapted for multiple different writing speeds and stores in advance writing conditions associated with each of the multiple writing speeds. The writing conditions include: a recording-power-related parameter and a write-waveform-related parameter, which are associated with each particular writing speed to perform a write operation at the particular writing speed; and another recording-power-related parameter for performing a write operation at a different writing speed other than the particular one using the recording-power-related parameter for performing the write operation at the particular writing speed.
摘要翻译：根据本发明的信息存储介质适用于多种不同的写入速度，并且预先存储与多个写入速度中的每一个相关联的写入条件。写入条件包括：记录功率相关参数和与写入波形相关的参数，其与每个特定写入速度相关联，以特定写入速度执行写入操作; 以及另一个记录功率相关参数，用于使用与特定写入速度执行写入操作的记录功率相关参数以不同于特定写入速度的不同写入速度执行写入操作。

4. 发明申请

US20110149704A1 SIGNAL EVALUATION METHOD AND SIGNAL EVALUATION APPARATUS 有权
标题翻译：信号评估方法和信号评估装置
公开(公告)号：US20110149704A1
公开(公告)日：2011-06-23
申请号：US13034762
申请日：2011-02-25
申请人： Harumitsu MIYASHITA , Kohei NAKATA , Yasumori HINO , Naohiro KIMURA
发明人： Harumitsu MIYASHITA , Kohei NAKATA , Yasumori HINO , Naohiro KIMURA
IPC分类号： G11B20/18 , G11B20/12 , G11B7/24 , G11B7/00
CPC分类号： G11B20/10009 , G11B20/10046 , G11B20/10055 , G11B20/10111 , G11B20/1012 , G11B20/10212 , G11B20/10277 , G11B20/10296 , G11B20/10361 , G11B20/1037 , G11B20/10398 , G11B20/10472 , G11B20/10481 , G11B20/1816 , G11B20/182 , G11B20/225 , G11B2220/2541
摘要： A signal evaluation method according to the present invention is a method for evaluating a read signal, retrieved from an information recording medium, based on a binarized signal generated from the read signal by a PRML method. The method includes the steps of: detecting the patterns of multiple paths associated with the binarized signal and merging into the same state; getting the ideal value of a correct pattern associated with the binarized signal and that of an erroneous pattern that is similar to, but different from, the correct pattern; calculating the difference between a distance from the ideal value of the correct pattern to the read signal and a distance from that of the erroneous pattern to the read signal; calculating, based on the difference, an expected error rate for each predetermined group of patterns by the PRML method; and calculating a standard deviation that is associated with a total error rate, which is obtained by adding together the error rates of the predetermined groups of patterns, and that is used for evaluating the read signal.
摘要翻译：根据本发明的信号评估方法是一种用于根据通过PRML方法从读取信号产生的二值化信号来评估从信息记录介质检索的读取信号的方法。该方法包括以下步骤：检测与二值化信号相关联的多个路径的模式并合并成相同的状态; 获得与二值化信号相关联的正确模式的理想值以及类似于但不同于正确模式的错误模式的理想值; 计算从正确图案的理想值到读取信号的距离与从错误图案到读取信号的距离之间的差; 基于差异，通过PRML方法计算每个预定组模式的预期误码率; 以及计算与总误差率相关联的标准偏差，其通过将预定组图案的误差率相加并且用于评估读取信号而获得。

5. 发明申请

US20090225639A1 SIGNAL EVALUATION METHOD AND SIGNAL EVALUATION APPARATUS 有权
标题翻译：信号评估方法和信号评估装置
公开(公告)号：US20090225639A1
公开(公告)日：2009-09-10
申请号：US12394281
申请日：2009-02-27
申请人： Harumitsu MIYASHITA , Kohei NAKATA , Yasumori HINO , Naohiro KIMURA
发明人： Harumitsu MIYASHITA , Kohei NAKATA , Yasumori HINO , Naohiro KIMURA
IPC分类号： G11B7/00
CPC分类号： G11B20/10009 , G11B20/10046 , G11B20/10055 , G11B20/10111 , G11B20/1012 , G11B20/10212 , G11B20/10277 , G11B20/10296 , G11B20/10361 , G11B20/1037 , G11B20/10398 , G11B20/10472 , G11B20/10481 , G11B20/1816 , G11B20/182 , G11B20/225 , G11B2220/2541
摘要： A signal evaluation method according to the present invention is a method for evaluating a read signal, retrieved from an information recording medium, based on a binarized signal generated from the read signal by a PRML method. The method includes the steps of: detecting the patterns of multiple paths associated with the binarized signal and merging into the same state; getting the ideal value of a correct pattern associated with the binarized signal and that of an erroneous pattern that is similar to, but different from, the correct pattern; calculating the difference between a distance from the ideal value of the correct pattern to the read signal and a distance from that of the erroneous pattern to the read signal; calculating, based on the difference, an expected error rate for each predetermined group of patterns by the PRML method; and calculating a standard deviation that is associated with a total error rate, which is obtained by adding together the error rates of the predetermined groups of patterns, and that is used for evaluating the read signal.
摘要翻译：根据本发明的信号评估方法是一种用于根据通过PRML方法从读取信号产生的二值化信号来评估从信息记录介质检索的读取信号的方法。该方法包括以下步骤：检测与二值化信号相关联的多个路径的模式并合并成相同的状态; 获得与二值化信号相关联的正确模式的理想值以及类似于但不同于正确模式的错误模式的理想值; 计算从正确图案的理想值到读取信号的距离与从错误图案到读取信号的距离之间的差; 基于差异，通过PRML方法计算每个预定组模式的预期误码率; 以及计算与总误差率相关联的标准偏差，其通过将预定组图案的误差率相加并且用于评估读取信号而获得。

6. 发明申请

US20100290326A1 INFORMATION RECORDING MEDIUM, METHOD FOR RECORDING INFORMATION ON INFORMATION RECORDING MEDIUM, METHOD FOR REPRODUCING INFORMATION FROM INFORMATION RECORDING MEDIUM AND METHOD FOR PRODUCING INFORMATION RECORDING MEDIUM 有权
标题翻译：信息记录介质，用于记录信息记录介质的信息的方法，用于从信息记录介质再现信息的方法和用于生成信息记录介质的方法
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。

7. 发明申请

US20100232270A1 OPTICAL INFORMATION RECORDING MEDIUM, INFORMATION RECORDING APPARATUS, INFORMATION REPRODUCING APPARATUS, INFORMATION RECORDING METHOD, INFORMATION REPRODUCING METHOD AND METHOD FOR PRODUCING OPTICAL INFORMATION RECORDING MEDIUM 审中-公开
标题翻译：光信息记录介质，信息记录装置，信息再现装置，信息记录方法，信息再现方法和用于产生光信息记录介质的方法
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。

8. 发明申请

US20100080095A1 RECORDING CONTROL METHOD, RECORDING/REPRODUCTION METHOD, RECORDING CONTROL APPARATUS AND RECORDING/REPRODUCTION APPARATUS 审中-公开
标题翻译：记录控制方法，记录/再现方法，记录控制装置和记录/再现装置
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。

9. 发明申请

US20100142338A1 INFORMATION RECORDING MEDIUM AND RECORDING/REPRODUCTION APPARATUS 有权
标题翻译：信息记录媒体和记录/复制装置
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。

10. 发明申请

US20100118673A1 METHOD FOR INSPECTING OPTICAL INFORMATION RECORDING MEDIUM, INSPECTION APPARATUS, OPTICAL INFORMATION RECORDING MEDIUM AND RECORDING METHOD 有权
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.

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