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1. 发明专利

JP2007048409A Information recording medium, and information recording device, and information recording method 审中-公开
标题翻译：信息记录介质，信息记录装置和信息记录方法
公开(公告)号：JP2007048409A
公开(公告)日：2007-02-22
申请号：JP2005234692
申请日：2005-08-12
申请人： Toshiba Corp , 株式会社東芝
发明人： OGAWA AKITO , WATABE KAZUO , KASHIWABARA YUTAKA
IPC分类号： G11B7/007 , G11B20/12
CPC分类号： G11B7/00736 , G11B7/24038 , G11B20/00115 , G11B20/10101 , G11B20/10111 , G11B20/1012 , G11B20/10166 , G11B20/1217 , G11B2020/122 , G11B2020/1228 , G11B2020/1248 , G11B2020/1275 , G11B2020/1277 , G11B2020/1278 , G11B2020/1288 , G11B2220/235 , G11B2220/2579
摘要： PROBLEM TO BE SOLVED: To provide a recordable and one-surface multilayer information recording medium capable of increasing a recording capacity without exerting adverse influence on the characteristics of a recording film, and to provide an information recording device and an information recording method in which the information recording medium is used. SOLUTION: The recordable and one-surface multilayer information recording medium having a plurality of recording layers is characterized in that an emboss management area, an inner periphery recordable management area, a data area, and an outer periphery recordable management area are arranged in order from an inner periphery in each recording layer, and a burst cutting area is arranged in the inner periphery of the emboss management area of one of the recording layers. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：提供能够提高记录容量的可记录和单面多层信息记录介质，而不会对记录膜的特性产生不利影响，并提供信息记录装置和信息记录方法其中使用信息记录介质。解决方案：具有多个记录层的可记录和单面多层信息记录介质的特征在于布置有压花管理区域，内周可记录管理区域，数据区域和外围可记录管理区域从每个记录层的内周的顺序排列，并且在一个记录层的压印管理区域的内周设置有一个突发切割区域。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2006120208A Recording method and optical disk apparatus 有权
公开(公告)号：JP2006120208A
公开(公告)日：2006-05-11
申请号：JP2004305083
申请日：2004-10-20
申请人： Hitachi Ltd , Hitachi-Lg Data Storage Inc , 株式会社日立エルジーデータストレージ , 株式会社日立製作所
发明人： MINEMURA HIROYUKI
IPC分类号： G11B7/0045 , G11B7/125 , G11B20/18
CPC分类号： G11B7/0062 , G11B7/1267 , G11B20/10009 , G11B20/10046 , G11B20/10055 , G11B20/10166 , G11B20/10222 , G11B20/10296 , G11B20/10481 , G11B2007/0006
摘要： PROBLEM TO BE SOLVED: To improve efficiency of operations required to optimize a recording pulse condition (a recording strategy) by adding minimum circuits, and to secure reproduction compatibility between drives, regarding a recording type optical disk apparatus. SOLUTION: The optical disk apparatus is composed to store an edge shift amount or a reproduction signal and a binarization result in an external memory as digital data, and to process them with analysis software in a host PC later on. A recording pulse shape and a power condition to each optical disk medium can be optimized in a short period of time using a circuit with simple configuration. Reproduction compatibility performance is kept from being impaired by optimizing the recording pulse shape and the power condition, while considering difference of PRML class and NA of a head. COPYRIGHT: (C)2006,JPO&NCIPI

3. 发明专利

JP4157145B2 Information reproducing apparatus 有权
公开(公告)号：JP4157145B2
公开(公告)日：2008-09-24
申请号：JP2006531792
申请日：2005-08-15
申请人：松下電器産業株式会社
发明人：山本　　明
IPC分类号： G11B20/14 , G11B20/18 , H03M13/41
CPC分类号： G11B20/10166 , G11B20/10009 , G11B20/10222 , G11B20/1403 , G11B2020/1863

4. 发明专利

JP4045269B2 Recording method and an optical disk device 有权
标题翻译：空值
公开(公告)号：JP4045269B2
公开(公告)日：2008-02-13
申请号：JP2004305083
申请日：2004-10-20
申请人：株式会社日立エルジーデータストレージ , 株式会社日立製作所
发明人：浩行峯邑
IPC分类号： G11B7/0045 , G11B7/125
CPC分类号： G11B7/0062 , G11B7/1267 , G11B20/10009 , G11B20/10046 , G11B20/10055 , G11B20/10166 , G11B20/10222 , G11B20/10296 , G11B20/10481 , G11B2007/0006

5. 发明专利

JP3696130B2 The signal processing device 有权
公开(公告)号：JP3696130B2
公开(公告)日：2005-09-14
申请号：JP2001200972
申请日：2001-07-02
申请人：松下電器産業株式会社
发明人：山本　　明 , 浩喜毛利 , 孝一永野
IPC分类号： G11B20/10 , G11B7/005 , G11B20/00 , G11B20/14 , G11B20/18
CPC分类号： G11B20/10166 , G11B20/10009 , G11B20/10046 , G11B20/10055 , G11B20/10212

6. 发明专利

JP2009134825A Optical disk reproducing device and optical disk reproducing method 审中-公开
标题翻译：光盘复制设备和光盘再现方法
公开(公告)号：JP2009134825A
公开(公告)日：2009-06-18
申请号：JP2007310974
申请日：2007-11-30
申请人： Toshiba Corp , 株式会社東芝
发明人： TATEZAWA KOREYASU , YAMAKAWA HIDEYUKI , CHIBA NORIKATSU , KANESHIGE TOSHIHIKO
IPC分类号： G11B20/14 , G11B20/10 , G11B20/18 , H03M13/41
CPC分类号： H03M13/41 , G11B20/10009 , G11B20/10046 , G11B20/10055 , G11B20/10111 , G11B20/1012 , G11B20/10166 , G11B20/10296 , G11B2220/2579 , H03M13/3707 , H03M13/6343 , H03M13/6508
摘要： PROBLEM TO BE SOLVED: To provide an optical disk reproducing device which is capable of setting an optimum PR (Partial Response) class for the comprehensive frequency characteristic of an optical disk including recording characteristics and reproducing characteristics. SOLUTION: In the optical disk reproducing device which performs reproduction of an optical disk using a PRML (Partial Response and Maximum Likelihood) method and comprises a Viterbi decoding unit which generates binary data using maximum likelihood decoding processing from multi-value reproduced data obtained by sampling a reproduced signal from the optical disk, the Viterbi decoding unit generates the binary data on the basis of the optimum PR class determined by the multi-value reproduced data and the binary data in a predetermined determination period. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够为包括记录特性和再现特性的光盘的综合频率特性设置最佳PR（部分响应）等级的光盘再现装置。解决方案：在使用PRML（部分响应和最大似然）方法执行光盘的再现的光盘再现装置中，包括维特比解码单元，其使用来自多值再现数据的最大似然解码处理来生成二进制数据通过对来自光盘的再现信号进行采样而获得，维特比解码单元根据由多值再现数据和二进制数据确定的最佳PR等级在预定的确定周期内产生二进制数据。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2007200516A Information reproducing device and method 审中-公开
标题翻译：信息再现设备和方法
公开(公告)号：JP2007200516A
公开(公告)日：2007-08-09
申请号：JP2006021185
申请日：2006-01-30
申请人： Toshiba Corp , 株式会社東芝
发明人： TATEZAWA KOREYASU , YAMAKAWA HIDEYUKI , MORI TAKAYUKI , NANGO TAKAHIRO , KANESHIGE TOSHIHIKO
IPC分类号： G11B20/10
CPC分类号： G11B20/10166 , G11B20/1012 , G11B20/10203 , G11B2220/213 , G11B2220/2579
摘要： PROBLEM TO BE SOLVED: To attain both the improvement of a reproducing capability due to the improvement of the accuracy of offset correction which has a great influence on a signal identification capability and high double speed of reproduction processing. SOLUTION: This information reproducing device 1 reads information recorded in an optical disk D, outputs a reproduced signal and performs analog offset correction for correcting offset about the reproduced signal before AD conversion, a digital offset correction for correcting the offset after the AD conversion and offset detection for detecting an offset controlled variable from the corrected reproduced signal after the digital offset correction. In addition, the information reproducing device 1 divides the offset data showing the detected offset controlled variable into first offset data equal to or greater than the least significant bit unit of AD conversion and second offset data smaller than the least significant bit unit and performs digital offset correction with the first offset data and analog offset correction with the second offset data. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了获得由于改善对信号识别能力和高的双重再现速度的影响而产生的偏移校正的精度的改善，可以提高再生能力。解决方案：该信息再现装置1读取记录在光盘D中的信息，输出再现信号并进行模拟偏移校正，以便在AD转换之前校正关于再现信号的偏移，用于校正AD之后的偏移量的数字偏移校正转换和偏移检测，用于在数字偏移校正之后从校正的再现信号中检测偏移控制变量。此外，信息再现装置1将表示检测到的偏移控制变量的偏移数据分割为等于或大于AD转换的最低有效位单位的第一偏移数据和小于最低有效位单元的第二偏移数据，并执行数字偏移用第一偏移数据进行校正，并用第二偏移数据进行模拟偏移校正。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2005346897A Method of evaluating reproduction signal and optical disk apparatus 有权
标题翻译：评估生殖信号和光盘设备的方法
公开(公告)号：JP2005346897A
公开(公告)日：2005-12-15
申请号：JP2004377369
申请日：2004-12-27
申请人： Hitachi Ltd , Hitachi-Lg Data Storage Inc , 株式会社日立エルジーデータストレージ , 株式会社日立製作所
发明人： MINEMURA HIROYUKI
IPC分类号： G11B20/10 , G11B7/0045 , G11B7/005 , G11B7/125 , G11B20/18 , H04L27/06
CPC分类号： G11B20/10009 , G11B7/005 , G11B20/10083 , G11B20/10092 , G11B20/10101 , G11B20/10111 , G11B20/1012 , G11B20/10129 , G11B20/10166 , G11B20/10296 , G11B2020/1288 , G11B2220/2541
摘要： PROBLEM TO BE SOLVED: To provide a method of evaluating quality of a reproduction signal from a viewpoint of detection margin of a Viterbi decoder in a PRML system in which a target level is varied in accordance with the reproduction signal, and a method of evaluating quality for a signal pattern comprising combination of the minimum run lengths from the viewpoint of edge shift. SOLUTION: From the target signal level that varies depending on the reproduction signal, a target signal is generated based on a decoding result, and an error target signal in which the decoding result is edge-shifted is generated. The signal quality can be evaluated by calculating an Euclidean distance between these signals and the reception signal. Also, A virtual state that is not included in the Viterbi decoder and that is less than the minimum run length is defined, and a target signal level for the virtual state is generated using a target signal level table inside the Viterbi decoder based on the concept of convolution. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种从根据再现信号改变目标电平的PRML系统中的维特比解码器的检测余量的观点来评估再现信号的质量的方法，以及方法从边缘偏移的角度对包括最小游程长度的组合的信号图案的质量进行评估。解决方案：从根据再现信号而变化的目标信号电平，基于解码结果生成目标信号，并且生成解码结果被边缘移位的错误目标信号。可以通过计算这些信号与接收信号之间的欧氏距离来评估信号质量。此外，定义不包括在维特比解码器中并且小于最小游程长度的虚拟状态，并且使用维特比解码器内部的目标信号电平表，基于概念生成虚拟状态的目标信号电平的卷积版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2003016733A Signal processor 有权
标题翻译：信号处理器
公开(公告)号：JP2003016733A
公开(公告)日：2003-01-17
申请号：JP2001200972
申请日：2001-07-02
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： MORI HIROKI , NAGANO KOICHI , YAMAMOTO AKIRA
IPC分类号： G11B20/10 , G11B7/005 , G11B20/00 , G11B20/14 , G11B20/18
CPC分类号： G11B20/10166 , G11B20/10009 , G11B20/10046 , G11B20/10055 , G11B20/10212
摘要： PROBLEM TO BE SOLVED: To improve performance of a signal processor used for reading out information from a recording medium.
SOLUTION: A waveform equalizer 30 with a partial response characteristic represented in the form of PR (a, b, c, b, a) which is a quartic transfer function characteristic so as to match the frequency characteristic of an analog reproduction signal read out from the recording medium 20 is constituted of an analog filter 31, an ADC(analog/digital converter) 32 and an FIR fitter 33. Thus, by making the characteristic of the signal processor similar to the reproduction signal characteristic, equalization can be easily carried out without specially emphasizing the reproduction signal, which consequently leads to a smaller circuitry.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提高用于从记录介质读出信息的信号处理器的性能。解决方案：具有以PR（a，b，c，b，a）的形式表示的部分响应特性的波形均衡器30，其是四次传递函数特性，以便与从...读出的模拟再现信号的频率特性相匹配记录介质20由模拟滤波器31，ADC（模拟/数字转换器）32和FIR装配器33组成。因此，通过使信号处理器的特性与再现信号特性相似，可以容易地执行均衡而不会特别强调再现信号，从而导致较小的电路。

10. 发明专利

JP5054791B2 Prml detector 有权
公开(公告)号：JP5054791B2
公开(公告)日：2012-10-24
申请号：JP2010028348
申请日：2010-02-12
申请人：パナソニック株式会社
发明人：健中嶋 , 敦史中村 , 順一南野 , 晴旬宮下 , 信一小西
IPC分类号： G11B20/10 , G11B7/00 , G11B7/005 , G11B20/14 , G11B20/18
CPC分类号： G11B20/10009 , G11B7/005 , G11B20/10046 , G11B20/10055 , G11B20/10166 , G11B20/10296 , G11B2020/1484

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