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：US08098557B2

公开(公告)日：2012-01-17

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： 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。

公开(公告)号：US08068399B2

公开(公告)日：2011-11-29

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： G11B5/09

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。

公开(公告)号：US07907487B2

公开(公告)日：2011-03-15

申请号：US12613833

申请日：2009-11-06

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。

公开(公告)号：US20100054097A1

公开(公告)日：2010-03-04

申请号：US12613833

申请日：2009-11-06

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： G11B7/12

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：US08509044B2

公开(公告)日：2013-08-13

申请号：US13391906

申请日：2010-09-16

申请人： Yasumori Hino ,  Junya Shiraishi ,  Hiroyasu Inoue ,  Koichi Watanabe

发明人： Yasumori Hino ,  Junya Shiraishi ,  Hiroyasu Inoue ,  Koichi Watanabe

IPC分类号： G11B20/10

CPC分类号： G11B7/00736 ,  G11B7/00456 ,  G11B7/0062

摘要： A recording medium and apparatus enable the number of data units of recording pulse information to be reduced. The recording medium includes an information area for recording set values of a recording pulse for forming recording marks. The set values include preceding space-based set values having a first reference value as a set value of a recording pulse corresponding to a predetermined preceding space and a first difference set value of a recording pulse corresponding to a space other than the predetermined preceding space; and trailing space-based set values having a second reference value as a set value of a recording pulse corresponding to a predetermined trailing space and a second difference set value of a recording pulse corresponding to a space other than the predetermined trailing space and which is expressed as a difference from the second reference value.

摘要翻译： 记录介质和装置能够减少记录脉冲信息的数据单元的数量。 记录介质包括用于记录用于形成记录标记的记录脉冲的设定值的信息区域。 设定值包括具有第一参考值作为对应于预定先行空间的记录脉冲的设定值的前面的基于空间的设定值和与预定的前一个空间以外的空间相对应的记录脉冲的第一差设定值; 以及尾部空格设定值，其具有第二参考值作为对应于预定拖尾空间的记录脉冲的设定值和对应于除了预定拖尾空间之外的空间的记录脉冲的第二差设定值，并且被表达 作为与第二参考值的差。

公开(公告)号：US20120170433A1

公开(公告)日：2012-07-05

申请号：US13391906

申请日：2010-09-16

申请人： Yasumori Hino ,  Junya Shiraishi ,  Hiroyasu Inoue ,  Koichi Watanabe

发明人： Yasumori Hino ,  Junya Shiraishi ,  Hiroyasu Inoue ,  Koichi Watanabe

IPC分类号： G11B7/007 ,  G11B20/12

CPC分类号： G11B7/00736 ,  G11B7/00456 ,  G11B7/0062

摘要： The present invention provides a recording medium and a recording/reproducing apparatus which enable the number of data units of recording pulse information to be reduced by dividing the recording pulse information into 1 byte-parameter information and differences from a value thereof, and the recording pulse information to be recorded on an existing DI area.A recording medium (801) has an information area (101) in which is recorded, as recording/reproducing control information, set values of a recording pulse adopted when forming a recording mark including: preceding space-based set values that include a first reference value that is a set value of a recording pulse corresponding to a predetermined preceding space and a first difference set value which is a set value of a recording pulse corresponding to a space other than the predetermined preceding space and which is expressed as a difference from the first reference value; and trailing space-based set values that include a second reference value that is a set value of a recording pulse corresponding to a predetermined trailing space and a second difference set value which is a set value of a recording pulse corresponding to a space other than the predetermined trailing space and which is expressed as a difference from the second reference value.

摘要翻译： 本发明提供了一种记录介质和记录/再现装置，其能够通过将记录脉冲信息划分为1字节参数信息和与其值的差异来减少记录脉冲信息的数据单元的数量，并且记录脉冲 要记录在现有DI区域的信息。 记录介质（801）具有记录信息区（101），作为记录/再现控制信息，在形成记录标记时采用的记录脉冲的设定值包括：包括第一参考的先前的基于空间的设定值 值，其是与预定的前一个空间相对应的记录脉冲的设定值，以及作为与预定的前一个空间以外的空间相对应的记录脉冲的设定值的第一差值设定值，并且表示为与 第一参考值; 以及尾随空间设定值，其包括作为对应于预定尾数空间的记录脉冲的设定值的第二参考值和作为与除了所述预定尾数空间之外的空间对应的记录脉冲的设定值的第二差设定值 预定的拖尾空间，并且被表示为与第二参考值的差。

公开(公告)号：US20130201813A1

公开(公告)日：2013-08-08

申请号：US13060606

申请日：2010-07-01

申请人： Yoshihiro Akimoto ,  Shoei Kobayashi ,  Motoshi Ito ,  Yasumori Hino ,  Hiroyasu Inoue ,  Harukazu Miyamoto ,  Koichiro Nishimura ,  Sung-hee Hwang ,  In-oh Hwang

发明人： Yoshihiro Akimoto ,  Shoei Kobayashi ,  Motoshi Ito ,  Yasumori Hino ,  Hiroyasu Inoue ,  Harukazu Miyamoto ,  Koichiro Nishimura ,  Sung-hee Hwang ,  In-oh Hwang

IPC分类号： G11B7/007

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

摘要： The present invention is to realize a proper inner zone layout in a quadruple-layer disk.A test area is provided in the inner zone (inner circumference side area) in each of recording layers. If two test areas closer to the outer circumference, of four test areas, are defined as a first pair and two test areas closer to the inner circumference are defined as a second pair, the test areas of the first pair and the test areas of the second pair are so disposed as to be prevented from overlapping with each other in the layer direction. Two test areas of the first pair have the same consumption direction of the test area, and are so disposed that the areas to be used next hardly overlap with each other in the layer direction. Two test areas of the second pair have the same consumption direction of the test area opposite to the consumption direction of the test area in the first pair, and are so disposed that the areas to be used next hardly overlap with each other in the layer direction.

摘要翻译： 本发明是在四层盘中实现适当的内区布局。 在每个记录层中的内部区域（内周侧区域）设置测试区域。 如果两个测试区域接近四个测试区域的外圆周，则被定义为第一对，并且更靠近内圆周的两个测试区域被定义为第二对，第一对测试区域和测试区域的测试区域 第二对设置成防止在层方向上彼此重叠。 第一对的两个测试区域具有相同的测试区域的消耗方向，并且被设置为使得下一个区域在层方向上几乎不重叠。 第二对的两个测试区域具有与第一对中的测试区域的消耗方向相反的测试区域的相同消耗方向，并且被设置为使得下一个使用的区域在层方向上几乎不重叠 。

公开(公告)号：US08811140B2

公开(公告)日：2014-08-19

申请号：US13060606

申请日：2010-07-01

申请人： Yoshihiro Akimoto ,  Shoei Kobayashi ,  Motoshi Ito ,  Yasumori Hino ,  Hiroyasu Inoue ,  Harukazu Miyamoto ,  Koichiro Nishimura ,  Sung-hee Hwang ,  In-oh Hwang

发明人： Yoshihiro Akimoto ,  Shoei Kobayashi ,  Motoshi Ito ,  Yasumori Hino ,  Hiroyasu Inoue ,  Harukazu Miyamoto ,  Koichiro Nishimura ,  Sung-hee Hwang ,  In-oh Hwang

IPC分类号： G11B7/24

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

摘要： The present invention is to realize a proper inner zone layout in a quadruple-layer disk.A test area is provided in the inner zone (inner circumference side area) in each of recording layers. If two test areas closer to the outer circumference, of four test areas, are defined as a first pair and two test areas closer to the inner circumference are defined as a second pair, the test areas of the first pair and the test areas of the second pair are so disposed as to be prevented from overlapping with each other in the layer direction. Two test areas of the first pair have the same consumption direction of the test area, and are so disposed that the areas to be used next hardly overlap with each other in the layer direction. Two test areas of the second pair have the same consumption direction of the test area opposite to the consumption direction of the test area in the first pair, and are so disposed that the areas to be used next hardly overlap with each other in the layer direction.

摘要翻译： 本发明是在四层盘中实现适当的内区布局。 在每个记录层中的内部区域（内周侧区域）设置测试区域。 如果两个测试区域接近四个测试区域的外圆周，则被定义为第一对，并且更靠近内圆周的两个测试区域被定义为第二对，第一对测试区域和测试区域的测试区域 第二对设置成防止在层方向上彼此重叠。 第一对的两个测试区域具有相同的测试区域的消耗方向，并且被设置为使得下一个区域在层方向上几乎不重叠。 第二对的两个测试区域具有与第一对中的测试区域的消耗方向相反的测试区域的相同消耗方向，并且被设置为使得下一个使用的区域在层的方向上几乎不重叠 。