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1. 发明公开

EP2309510A1 METHOD FOR EVALUATING REPRODUCED SIGNAL, REPRODUCED SIGNAL EVALUATION DEVICE AND OPTICAL DISC DEVICE EQUIPPED WITH THE SAME 审中-公开
标题翻译：评价方法的再现信号设备进行评估再现信号，因此配备光盘设备
公开(公告)号：EP2309510A1
公开(公告)日：2011-04-13
申请号：EP09773166.5
申请日：2009-06-30
申请人： Panasonic Corporation , Sony Corporation
发明人： MIYASHITA, Harumitsu , HINO, Yasumori , SHIRAISHI, Junya , KOBAYASHI, Shoei
IPC分类号： G11B20/18 , G11B20/14
CPC分类号： G11B20/10009 , G11B20/10027 , G11B20/10046 , G11B20/10055 , G11B20/1012 , G11B20/10212 , G11B20/10277 , G11B20/10296 , G11B20/10361 , G11B20/1037 , G11B20/10398 , G11B20/10425 , G11B20/10472 , G11B20/10481 , G11B20/1816 , G11B20/182 , G11B20/22 , G11B2220/2541
摘要： A reproduction signal evaluation method for evaluating quality of a reproduction signal reproduced from an information recording medium based on a binary signal generated from the reproduction signal using a PRML signal processing system, includes: a pattern extraction step of extracting, from the binary signal, a specific state transition pattern which has the possibility of causing a bit error; a step of computing a differential metric based on the binary signal; an extraction step of extracting the differential metric which is not greater than a predetermined signal processing threshold; a step of determining a mean value of the differential metrics which are not greater than the signal processing threshold and extracted in the extraction step; a standard deviation computing step of determining a standard deviation which corresponds to an error rate predicted from the mean value; and an evaluation step of evaluating a quality of the reproduction signal using the standard deviation.
摘要翻译：用于评估来自于信息再生的再生信号的质量的再现信号的评价方法的记录介质根据从使用PRML信号处理系统的再现信号而生成的二进制信号，包括：提取的模式提取步骤，从二进制信号，一个其中有产生误码的可能性特定状态转换模式; 基于所述二进制信号的差分度量的步骤; 在提取差分度量所有这些是不大于预定的信号处理的阈值的提取步骤; 确定性采矿的步骤差分度量哪些是不大于信号处理阈值并且在所述提取步骤中提取的一个平均值; 确定性采矿其对应于错误率的标准偏差与平均值的预测的标准偏差的计算步骤; 并且在评价用的标准偏差的再现信号的质量的评价步骤。

2. 发明公开

EP2395510A1 READ-BACK SIGNAL EVALUATION METHOD, READ-BACK SIGNAL EVALUATION DEVICE, AND OPTICAL DISC DEVICE PROVIDED WITH SAME 审中-公开
标题翻译：返回读取信号评估过程中，回读信号分析设备，因此具备光纤磁盘阵列
公开(公告)号：EP2395510A1
公开(公告)日：2011-12-14
申请号：EP10723903.0
申请日：2010-02-01
申请人： Panasonic Corporation , Sony Corporation
发明人： MIYASHITA, Harumitsu , HINO, Yasumori , SHIRAISHI, Junya , KOBAYASHI, Shoei
IPC分类号： G11B20/18 , G11B20/14
CPC分类号： G11B20/10009 , G11B20/1012 , G11B20/10481 , G11B20/1816 , G11B2220/2537
摘要： A reproduction signal evaluation unit has: a pattern detection section (101) for extracting, from a binary signal, a specific state transition pattern which has a possibility of causing a bit error; a differential metric computing section (102) for computing a differential metric based on the binary signal of the extracted state transition pattern; an error computing section (116) for computing an error rate predicted based on an integration value that is integrated by an integration section (125), a count value that is counted by a pattern count section (124), an integration value that is integrated by another integration section (105), and a count value that is counted by another pattern count section (104), and a standard deviation computing section (120) for computing a standard deviation based on the computed error rate.
摘要翻译：的再现信号评价部具有：用于提取，从二进制信号，其具有引起的比特错误的可能性的特定的状态转移图案的图案检测部（101）; 用于计算基于所提取的状态转移图案的二进制信号的差分度量的差量度计算部分（102）; 到误差计算用于在错误率计算部（116），在积分值预测基于并通过在积分部分（125）集成，一个计数值并通过积分值的图案计数部（124）中计数所做的是集成通过另一个积分部分（105），和计数值没有由另一模式计数部（104），以及用于基于所计算的错误率的标准偏差的标准偏差计算部（120）计数。

3. 发明公开

EP2211341A1 OPTICAL DISC AND OPTICAL DISC RECORDING/REPRODUCTION METHOD 审中-公开
标题翻译：光盘及其光学或SCHEIBENAUFZEICHNUNGS- 播放
公开(公告)号：EP2211341A1
公开(公告)日：2010-07-28
申请号：EP08851081.3
申请日：2008-11-20
申请人： Panasonic Corporation
发明人： NAKATA, Kohei, c/o Panasonic Corporation IPROC , MIYASHITA, Harumitsu
IPC分类号： G11B7/007 , G11B7/005 , G11B20/10 , G11B20/12 , G11B20/14
CPC分类号： G11B7/00745 , G11B7/005 , G11B7/0053 , G11B20/10222 , G11B20/1217 , G11B20/14 , G11B2020/1221 , G11B2020/1287 , G11B2220/2537
摘要： A big pattern for a run-in area which allows data reproduction to be performed stably even when the recording density of an optical disc is increased is provided.
An optical disc according to the present invention includes tracks, each of which divided into a plurality of recording blocks. Each of the plurality of blocks includes a run-in area and a data area. In the run-in area, a prescribed run-in bit pattern is recordable; and in the data area, bit patterns having a plurality of bit lengths obtained by modulating data as a recording target in accordance with a prescribed modulation rule are recordable. In this optical disc, at least one of spatial frequencies corresponding to the bit patterns having the plurality of bit lengths is higher than a cutoff frequency. The run-in bit pattern recordable in the run-in area includes the bit patterns having the plurality of bit lengths, from which the bit pattern corresponding to the frequency higher than the OTF cutoff frequency has been excluded.

4. 发明公开

EP2211348A1 OPTICAL DISK, OPTICAL DISK DEVICE, OPTICAL DISK RECORDING/REPRODUCING METHOD, AND INTEGRATED CIRCUIT 审中-公开
标题翻译：光盘，光盘设备，光盘光学与集成电路THEREFOR记录和重放
公开(公告)号：EP2211348A1
公开(公告)日：2010-07-28
申请号：EP08851571.3
申请日：2008-11-19
申请人： Panasonic Corporation
发明人： NAKATA, Kohei , KIMURA, Naohiro , MIYASHITA, Harumitsu , UEDA, Hiroshi , YAMAMOTO, Yoshikazu
IPC分类号： G11B20/12 , G11B7/007 , G11B20/10
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： When a recording capacity of an optical disc is increased, the increased part of the addresses cannot be represented by the number of bits used for representing the address information of a conventional optical disc. Hence, an address format capable of representing the increased part of the addresses while being compatible with the conventional address format with the same number of bits is proposed.
In an optical disc according to the present invention, 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. Where a value of the block address is smaller than a threshold value, the second digital information represents a value specifying a number pre-assigned to the each sub block; whereas where the value of the block address is equal to or larger than the threshold value, the second digital information represents a value other than the value specifying the number pre-assigned to the each sub block. Or, where the value of the block address is equal to or larger than the threshold value, the second digital information represents the value specifying the number pre-assigned to the each sub block; whereas where the value of the block address is smaller than the threshold value, the second digital information represents a value other than the value specifying the number pre-assigned to the each sub block.
摘要翻译：当光盘的记录容量增加，则地址的增加的部分不能被用于表示现有的光盘的地址信息的比特数来表示。因此，为了解决能够表示同时与具有相同数目的比特的常规地址格式兼容提出的地址的增加部分的格式。在光盘gemäß到本发明中，在其上的数据的磁道被记录被分成块的多个，并且每个块包括子块的L个。上的每个子块，M位第一数字信息指定包括的块的块地址的每个子块，并且能够表示等于或大于L的记录较大的数值的N位的第二数字信息。其中块地址的值小于阈值时，所述第二数字信息darstellt一个值指定一个号码预先分配给每个子块; 鉴于其中块地址的值等于或大于阈值时，所述第二数字信息darstellt比指定预分配给每个子块的数目的值以外的值。或者，其中，所述块地址的值比阈值以上的情况下，第二数字信息darstellt指定预分配给每个子块的数目的值; 鉴于其中块地址的值小于阈值时，所述第二数字信息darstellt比指定预分配给每个子块的数目的值以外的值。

5. 发明公开

EP2058805A1 OPTICAL RECORDING MEDIUM, METHOD FOR MANUFACTURING THE OPTICAL RECORDING MEDIUM, REPRODUCTION SIGNAL PROCESSING METHOD AND EVALUATION METHOD 审中-公开
标题翻译：光学记录介质，用于生产光学记录介质，一种用于处理再生信号和评价程序THEREFOR
公开(公告)号：EP2058805A1
公开(公告)日：2009-05-13
申请号：EP07859699.6
申请日：2007-11-30
申请人： Panasonic Corporation
发明人： HINO, Yasumori , MIYASHITA, Harumitsu , SHOJI, Mamoru , ITOU, Kiyotaka
IPC分类号： G11B7/005 , G11B20/10 , G11B20/14
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：光学头12的检测器再现记录到光盘11，BCA 21和判别电路22获取的波形失真信息用于指定由光学头12再生的再生信号的波形失真的介质，和可变波形均衡器16个的变化的信息在失真减少处理中使用的用于减小基于所述波形失真信息的再现信号的波形失真的参数。

6. 发明公开

EP2219178A1 INFORMATION RECORDING MEDIUM AND INFORMATION RECORDING MEDIUM EVALUATION METHOD 审中-公开
标题翻译：信息管理机构管理软件维基百科全球知识产权信息管理系统
公开(公告)号：EP2219178A1
公开(公告)日：2010-08-18
申请号：EP08858755.5
申请日：2008-12-11
申请人： Panasonic Corporation
发明人： MIYASHITA, Harumitsu , NAKATA, Kohei
IPC分类号： G11B7/004
CPC分类号： G11B20/10324 , G11B7/00736 , G11B7/1267 , G11B20/10009 , G11B20/1816 , G11B2220/215 , G11B2220/2541
摘要： An information recording medium according to the present invention includes an information recording layer on which information is recordable, and is evaluated using an evaluation index which is found based on a ratio of a center of an amplitude of a reproduction signal corresponding to a second shortest mark and a second shortest space, with respect to a center of an amplitude of a reproduction signal corresponding to a longest mark and a longest space.
摘要翻译：根据本发明的信息记录介质包括信息记录层，信息记录层可记录信息，并且使用基于与第二最短标记相对应的再现信号的幅度的中心的比率找到的评价指标进行评估以及相对于对应于最长标记和最长空间的再现信号的幅度的中心的第二最短空间。

7. 发明授权

EP1328930B1 OPTICAL DISC, RECORDING APPARATUS AND METHOD, AND REPRODUCTION APPARATUS AND METHOD 有权
标题翻译：光盘记录装置和方法，再生装置及方法
公开(公告)号：EP1328930B1
公开(公告)日：2008-12-17
申请号：EP01976839.9
申请日：2001-10-26
申请人： Panasonic Corporation
发明人： NAGAI, Takahiro , ISHIHARA, Hideshi , YUMIBA, Takashi , TAKAHASHI, Rie , SHOJI, Mamoru , YAMAGUCHI, Hiroyuki , MIYASHITA, Harumitsu
IPC分类号： G11B7/013 , G11B20/00 , G11B23/28 , G11B23/36 , G11B7/007
CPC分类号： G11B20/0021 , G11B7/007 , G11B7/00745 , G11B7/24085 , G11B20/00086 , G11B20/00268 , G11B20/00376 , G11B20/00586 , G11B20/00594 , G11B20/0071 , G11B20/00768 , G11B20/10 , G11B27/3027 , G11B2220/2562
摘要： An optical disc having a plurality of sectors, each of which includes a plurality of frames. Sub information bit value '0' or '1' is assigned to the plurality of frames constituting a sector, excluding the first and last frames. Edge positions are displaced so that leading/lagging errors appear in accordance with a certain rule when data fields of the frames to which sub information bit value '1' is assigned are read. Edge positions are displaced so that leading/lagging errors appear in accordance with a reversed rule of the certain rule when data fields of the frames to which sub information bit value '0' is assigned are read.

8. 发明公开

EP2793230A1 OPTICAL RECORDING/REPRODUCTION DEVICE 审中-公开
标题翻译： OPTISCHE LESE- / SCHREIBVORRICHTUNG
公开(公告)号：EP2793230A1
公开(公告)日：2014-10-22
申请号：EP12840858.0
申请日：2012-08-31
申请人： Panasonic Corporation
发明人： HIROSE, Ryoji , MIYASHITA, Harumitsu
IPC分类号： G11B7/0045 , G11B7/135
CPC分类号： G11B7/00458
摘要： An optical read/write apparatus according to an embodiment includes: an optical head unit (2a, 2b) which focuses a write light beam and a read light beam onto an optical storage medium (100) and which generates a signal based on the light beam that has been reflected from the optical storage medium; and a control section (6) which controls the optical head unit (2a, 2b) so that the optical head unit records a mark on the optical storage medium by irradiating the optical storage medium with the write light beam and reads the recorded mark on the optical storage medium with the read light beam. After having started to record the mark on the optical storage medium by irradiating the optical storage medium with the write light beam and before forming the recorded mark completely, the optical head unit (2a, 2b) reads the recorded mark on the optical storage medium with the read light beam.
摘要翻译：根据实施例的光学读/写装置包括：将写入光束和读取光束聚焦到光学存储介质（100）上并且基于光束产生信号的光学头单元（2a，2b）已从光存储介质反射出来; 以及控制部（6），其控制光头单元（2a，2b），使得光头单元通过用光写入光束照射光存储介质来在光存储介质上记录标记，并读取记录标记具有读取光束的光学存储介质。在通过用写入光束照射光学存储介质并且在完全形成记录标记之前开始在光学存储介质上记录标记之后，光学头单元（2a，2b）在光学存储介质上读取记录的标记，读光束。

9. 发明公开

EP2246855A1 SIGNAL EVALUATION METHOD AND SIGNAL EVALUATION DEVICE 审中-公开
标题翻译： SIGNALBEWERTUNGSVERFAHREN UND SIGNALBEWERTUNGSVORRICHTUNG
公开(公告)号：EP2246855A1
公开(公告)日：2010-11-03
申请号：EP09714009.9
申请日：2009-02-27
申请人： Panasonic Corporation
发明人： MIYASHITA, Harumitsu , NAKATA, Kohei , HINO, Yasumori , KIMURA, Naohiro
IPC分类号： G11B20/18 , G11B7/0045 , G11B20/10
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，以及与正确模式相似但不同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; 以及计算与总错误率相关联的标准偏差，其通过将预定组图案的错误率相加并且用于评估读取信号而获得。

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