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1. 发明授权

US08098557B2 Signal evaluation method and signal evaluation apparatus 有权
标题翻译：信号评估方法及信号评估装置
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。

2. 发明授权

US08068399B2 Signal evaluation method and signal evaluation apparatus 有权
标题翻译：信号评估方法及信号评估装置
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。

3. 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。

4. 发明授权

US07830753B2 Optical disc, optical disc drive, optical disc recording/reproducing method, and integrated circuit 有权
标题翻译：光盘，光盘驱动器，光盘记录/再现方法和集成电路
公开(公告)号：US07830753B2
公开(公告)日：2010-11-09
申请号：US12272948
申请日：2008-11-18
申请人： Kohei Nakata , Naohiro Kimura , Harumitsu Miyashita , Hiroshi Ueda , Yoshikazu Yamamoto
发明人： Kohei Nakata , Naohiro Kimura , Harumitsu Miyashita , Hiroshi Ueda , Yoshikazu Yamamoto
IPC分类号： G11B7/085 , G11B7/24
CPC分类号： G11B7/00745 , G11B20/1217 , G11B27/3027 , G11B2020/1221 , G11B2020/1227 , G11B2020/1232 , G11B2020/1239 , G11B2020/1267 , G11B2020/1268 , G11B2020/1278 , G11B2020/1292 , G11B2220/235 , G11B2220/2541
摘要： In an optical disc, a track on which data is recordable is divided into a plurality of blocks, and each block includes L pieces of sub blocks. On each sub block, M-bit first digital information specifying a block address of a block including the each sub block and N-bit second digital information capable of representing a numerical value equal to or larger than L are recorded.
摘要翻译：在光盘中，将数据可记录的轨道划分为多个块，每个块包括L个子块。在每个子块上记录指定包括每个子块的块的块地址的M位第一数字信息和能够表示等于或大于L的数值的N位第二数字信息。

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

US20090180365A1 INFORMATION RECORDING METHOD AND INFORMATION REPRODUCING METHOD 有权
标题翻译：信息记录方法和信息再现方法
公开(公告)号：US20090180365A1
公开(公告)日：2009-07-16
申请号：US12329755
申请日：2008-12-08
申请人： Naohiro KIMURA , Kohei NAKATA , Toyoji GUSHIMA , Hiroshi UEDA
发明人： Naohiro KIMURA , Kohei NAKATA , Toyoji GUSHIMA , Hiroshi UEDA
IPC分类号： G11B20/00
CPC分类号： G11B20/1833 , G11B20/00086 , G11B20/00637 , G11B20/00695 , G11B2020/1239 , G11B2020/1268 , G11B2020/1836 , G11B2220/2541 , G11B2220/257 , H03M13/1515 , H03M13/155
摘要： According to the present invention, when an apparatus performs reproduction from an optical disc of a format not compatible to the apparatus, the apparatus is prevented from obtaining an incorrect address and thus causing a malfunction. A recording method according to the present invention performs first conversion of bit-inverting m number (1≦m
摘要翻译：根据本发明，当装置从与该装置不兼容的格式的光盘执行再现时，防止该装置获得不正确的地址，从而导致故障。根据本发明的记录方法，通过Reed-Solomon码对使用纠错码编码的码字的规定位置的比特反相m号码（1 <= m

7. 发明申请

US20090175151A1 OPTICAL DISC, OPTICAL DISC DRIVE, OPTICAL DISC RECORDING/REPRODUCING METHOD, AND INTEGRATED CIRCUIT 审中-公开
标题翻译：光盘，光盘驱动器，光盘记录/再现方法和集成电路
公开(公告)号：US20090175151A1
公开(公告)日：2009-07-09
申请号：US12274428
申请日：2008-11-20
申请人： Harumitsu Miyashita , Kohei Nakata , Naohiro Kimura
发明人： Harumitsu Miyashita , Kohei Nakata , Naohiro Kimura
IPC分类号： G11B7/00 , G11B7/24
CPC分类号： G11B20/1217 , G11B2020/1267 , G11B2020/1279 , G11B2220/235 , G11B2220/2537
摘要： An address format for appropriately controlling the recording linear density and the number of information recording layers is provided in order to increase the recording capacity of an information recording medium such as an optical disc or the like in a range in which a necessary S/N ratio can be guaranteed. An optical disc includes an information recording layer having a concentric or spiral track, and has a format for describing a track address, which is pre-recorded on the track or is to be added to data that is to be recorded on the information recording layer. The format includes layer information regarding the information recording layer and address information regarding the track address.
摘要翻译：提供了用于适当地控制记录线密度和信息记录层数的地址格式，以便在诸如光盘等的信息记录介质的记录容量在必要的S / N比可以保证。光盘包括具有同心或螺旋形轨道的信息记录层，并且具有用于描述轨道地址的格式，其被预先记录在轨道上或被添加到待记录在信息记录层上的数据。该格式包括关于信息记录层的层信息和关于轨道地址的地址信息。

8. 发明授权

US07453658B2 Recording control apparatus, recording and reproduction apparatus, and recording control method 有权
标题翻译：记录控制装置，记录和再现装置以及记录控制方法
公开(公告)号：US07453658B2
公开(公告)日：2008-11-18
申请号：US12046025
申请日：2008-03-11
申请人： Harumitsu Miyashita , Takeshi Nakajima , Naohiro Kimura
发明人： Harumitsu Miyashita , Takeshi Nakajima , Naohiro Kimura
IPC分类号： G11B5/035 , G11B7/00
CPC分类号： G11B7/0062 , G11B7/00456 , G11B20/10009 , G11B20/10055 , G11B20/10111 , G11B20/10481 , G11B20/1403
摘要： A recording control apparatus includes a waveform rectification section for receiving a digital signal generated from an analog signal representing information reproduced from an information recording medium, and rectifying a waveform of the digital signal; a maximum likelihood decoding section for performing maximum likelihood decoding of the digital signal having the waveform thereof rectified, and generating a binary signal representing a result of the maximum likelihood decoding; a reliability calculation section for calculating a reliability of the result of the maximum likelihood decoding based on the digital signal having the waveform thereof rectified and the binary signal; and an adjusting section for adjusting a shape of a recording signal for recording the information on the information recording medium based on the calculated reliability.
摘要翻译：一种记录控制装置，包括：波形整流部分，用于接收从表示从信息记录介质再现的信息的模拟信号产生的数字信号，并整流数字信号的波形; 最大似然解码部分，用于对其波形进行整流的数字信号进行最大似然解码，并生成表示最大似然解码结果的二进制信号; 可靠性计算部分，用于基于其整流波形的数字信号和二进制信号来计算最大似然解码结果的可靠性; 以及调整部，用于基于所计算的可靠性来调整用于将信息记录在信息记录介质上的记录信号的形状。

9. 发明申请

US20050078579A1 Recording control apparatus, recording and reproduction apparatus, and recording control method 有权
标题翻译：记录控制装置，记录和再现装置以及记录控制方法
公开(公告)号：US20050078579A1
公开(公告)日：2005-04-14
申请号：US10823264
申请日：2004-04-13
申请人： Harumitsu Miyashita , Takeshi Nakajima , Naohiro Kimura
发明人： Harumitsu Miyashita , Takeshi Nakajima , Naohiro Kimura
IPC分类号： G11B20/10 , G11B20/14 , G11B7/00
CPC分类号： G11B7/0062 , G11B7/00456 , G11B20/10009 , G11B20/10055 , G11B20/10111 , G11B20/10481 , G11B20/1403
摘要： A recording control apparatus includes a waveform rectification section for receiving a digital signal generated from an analog signal representing information reproduced from an information recording medium, and rectifying a waveform of the digital signal; a maximum likelihood decoding section for performing maximum likelihood decoding of the digital signal having the waveform thereof rectified, and generating a binary signal representing a result of the maximum likelihood decoding; a reliability calculation section for calculating a reliability of the result of the maximum likelihood decoding based on the digital signal having the waveform thereof rectified and the binary signal; and an adjusting section for adjusting a shape of a recording signal for recording the information on the information recording medium based on the calculated reliability.
摘要翻译：一种记录控制装置，包括：波形整流部分，用于接收从表示从信息记录介质再现的信息的模拟信号产生的数字信号，并整流数字信号的波形; 最大似然解码部分，用于对其波形进行整流的数字信号进行最大似然解码，并生成表示最大似然解码结果的二进制信号; 可靠性计算部分，用于基于其整流波形的数字信号和二进制信号来计算最大似然解码结果的可靠性; 以及调整部，用于基于所计算的可靠性来调整用于将信息记录在信息记录介质上的记录信号的形状。

10. 发明授权

US06381201B1 Optical disk apparatus with address polarity determination and confirmation 失效
标题翻译：具有地址极性确定和确认的光盘设备
公开(公告)号：US06381201B1
公开(公告)日：2002-04-30
申请号：US09427650
申请日：1999-10-27
申请人： Tetsuya Shihara , Katsuya Watanabe , Naohiro Kimura , Hidemi Takahashi
发明人： Tetsuya Shihara , Katsuya Watanabe , Naohiro Kimura , Hidemi Takahashi
IPC分类号： G11B1722
CPC分类号： G11B7/005 , G11B7/00718 , G11B7/00745 , G11B7/0901
摘要： An optical disk apparatus of the present invention includes: a light amount detection section for irradiating an information carrier with a light beam so as to detect information recorded in a data section of the information carrier, wherein the information carrier includes the data section and an address section associated with the data section, the data section is an information track formed by a land or a groove where information can be recorded or reproduced, and the address section contains address information corresponding to the information track which is recorded in the address section by one or more concave or convex pit offset by a predetermined distance from a center of the information track; an address polarity determination section for determining whether the address section over which the light beam has passed is either on an outer periphery side or on an inner periphery side with respect to the center of the information track being scanned by the light beam, based on a signal output from the light amount detection section; an address reproduction section for reproducing the address information recorded in the address section based on a signal output from the light amount detection section; and an address confirmation section for confirming the data section from which or to which data is to be reproduced or recorded, based on the determination result from the address polarity determination section and the address information reproduced by the address reproduction section.
摘要翻译：本发明的光盘装置包括：光量检测部分，用于利用光束照射信息载体，以便检测记录在信息载体的数据部分中的信息，其中信息载体包括数据部分和地址与数据部分相关联的部分，数据部分是由可以记录或再现信息的岸台或凹槽形成的信息轨迹，并且地址部分包含与记录在地址段中的信息轨道相对应的地址信息或更多的凹坑或凸坑偏移距离信息轨道的中心预定距离; 地址极性确定部分，用于确定光束已经通过的地址部分是否相对于由光束被扫描的信息光道的中心的外周侧或内周侧，基于信号从光量检测部输出; 地址再现部分，用于基于从光量检测部分输出的信号再现记录在地址部分中的地址信息; 以及地址确认部分，用于基于地址极性确定部分的确定结果和由地址再现部分再现的地址信息来确认要从哪个或哪些数据被再现或记录的数据部分。

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