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1. 发明专利

JP2006155744A Optical disk device and alternate area setting method for optical disk medium 有权
标题翻译：光盘设备和光盘介质的替代区域设置方法
公开(公告)号：JP2006155744A
公开(公告)日：2006-06-15
申请号：JP2004344217
申请日：2004-11-29
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： AKABOSHI KENJI , HOSHISAWA HIROSHI
IPC分类号： G11B20/12 , G11B7/004 , G11B20/10 , G11B20/18
CPC分类号： G11B20/1883 , G11B20/00086
摘要： PROBLEM TO BE SOLVED: To improve convenience for a user by setting an alternate area having an optimum size in accordance with the quality of a medium, when the alternate area is set for carrying out an alternative recording operation with a defective sector on another area of the medium in the case that the defective sector exists on the recording area of the optical disk medium.
SOLUTION: This optical disk device comprises a medium information acquisition section 106 for acquiring medium information intrinsic to the medium from the optical medium 101 and an area size decision section 167 for deciding the size of the alternate area suitable for this medium on the basis of the acquired medium information. This medium information is e.g. information as to a manufacturer and a manufacturing model number of the medium. Also, in order to decide the size, a table for storing the relation between the medium information and the optimum size of the alternate area is included.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了通过根据介质的质量设置具有最佳尺寸的替代区域来提高用户的便利性，当设置交替区域以执行具有缺陷扇区的备选记录操作时在光盘介质的记录区域存在缺陷扇区的情况下介质的另一区域。解决方案：该光盘装置包括用于从光学介质101获取介质固有的介质信息的介质信息获取部分106和用于决定适合于该介质的替代区域的尺寸的区域尺寸决定部分167 获取的媒体信息的基础。该介质信息是例如关于制造商的信息和介质的制造型号。此外，为了确定尺寸，包括用于存储介质信息与交替区域的最佳尺寸之间的关系的表格。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2006024246A Method for adjusting laser intensity of optical disk, and optical disk recording/reproducing device 审中-公开
标题翻译：调整光盘激光强度的方法和光盘记录/再现装置
公开(公告)号：JP2006024246A
公开(公告)日：2006-01-26
申请号：JP2004199230
申请日：2004-07-06
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： AKABOSHI KENJI , KUREBAYASHI MASAAKI , FUSHIMI TETSUYA
IPC分类号： G11B7/0045 , G11B7/125
摘要： PROBLEM TO BE SOLVED: To realize suitable real-time recording by shortening the time of laser intensity adjustment (OPC processing) when a recording environment changes. SOLUTION: A test signal having laser intensity gradually changed is recorded in a optical disk, the test signal recorded in the optical disk is reproduced, and the recording characteristics of the optical disk are obtained from the reproducing signal. When the recording characteristics are obtained, they are obtained at two stages. At the first time it is executed before data recording, and at the second time it is executed at the smaller number of measuring points in a short period of time during recording. New recording characteristics 102a are synthesized from recording characteristics 101 obtained at the first stage and recording characteristics obtained at the second stage. Recording laser intensity is optimized based on the new recording characteristics 102a. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过缩短记录环境变化时的激光强度调整（OPC处理）的时间来实现适当的实时记录。解决方案：将激光强度逐渐变化的测试信号记录在光盘中，再现记录在光盘中的测试信号，并从再现信号获得光盘的记录特性。当获得记录特性时，它们分两步获得。第一次在数据记录之前执行，并且在第二次在记录期间的短时间内在较小数量的测量点执行。新记录特性102a由在第一阶段获得的记录特性101和在第二阶段获得的记录特性合成。记录激光强度基于新的记录特性102a进行优化。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2004178770A Optical disk device 审中-公开
公开(公告)号：JP2004178770A
公开(公告)日：2004-06-24
申请号：JP2002347139
申请日：2002-11-29
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： SAITO ATSUSHI , KATSUKI MANABU , AKABOSHI KENJI , IKEDA KAZUHIRO
IPC分类号： G11B20/10 , G11B7/005 , G11B20/14
摘要： PROBLEM TO BE SOLVED: To detect an address from a wobble signal having a small S/N ratio and amplitude variation highly precisely.
SOLUTION: The optical disk device locates a light spot on an optical disk which meanders at a fixed frequency and has a group whose addresses are locally modulated. The device is equipped with an optical head for irradiating the light spot onto the optical disk and detecting the wobble signal from a reflected light, an AD converter for converting the wobble signal into a digital value at a frequency at least twice as that of the wobble signal, a phase detectiing and computing unit for performing FIR calculation with the digital value, binarizing the FIR calculated signal, updating the binarized signal at 1/N-th frequency of the wobble signal and outputting it, and a decoding circuit for identifying an address from an output signal of the phase detection computing unit. Also, the FIR calculation of 4 tap is performed and a cut-off frequency as an FIR filter is lowered. Furthermore, the FIR calculation is performed with a part of coefficient made 0 and it is hardly affected by the digital value in which the amplitude variation occurs.
COPYRIGHT: (C)2004,JPO

4. 发明专利

JP2004178655A Clock generation circuit and recording/reproducing apparatus using the same 审中-公开
公开(公告)号：JP2004178655A
公开(公告)日：2004-06-24
申请号：JP2002341661
申请日：2002-11-26
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： KATSUKI MANABU , SAITO ATSUSHI , AKABOSHI KENJI
IPC分类号： G11B20/10 , G11B7/004 , H03L7/087
摘要： PROBLEM TO BE SOLVED: To generate a stable clock from a wobble signal for achieving high-quality recording. SOLUTION: A clock generation circuit is composed by subordinately connecting a digital PLL circuit and an analog one. Additionally, a phase comparator and a phase frequency comparator are used in digital and analog PLLs, respectively, and operation is made so that the cumulative phase error between an ideal period and a reference signal to be generated is reduced in the digital PLL, thus preventing the cumulative phase error from easily occurring in a long-term defect and hence generating the stable clock. Additionally, the clock is used as the reference clock for recording, thus achieving the high-quality recording. COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2009289384A Optical information recording/reproducing device and optical information recording method 有权
标题翻译：光信息记录/再现设备和光信息记录方法
公开(公告)号：JP2009289384A
公开(公告)日：2009-12-10
申请号：JP2008144045
申请日：2008-06-02
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： AKABOSHI KENJI
IPC分类号： G11B7/0065 , G11B7/24
CPC分类号： G11B7/0065 , G03H1/18 , G03H1/181 , G03H1/182 , G03H2001/185
摘要： PROBLEM TO BE SOLVED: To provide an optical information recording/reproducing device simultaneously performing a precure process or a postcure process, and a data recording process, wherein one driver device can control a process of positioning at any position on a recording medium. SOLUTION: In one driver device, there are arranged a means for irradiating signal light and reference light required to record data, and a means for cure, which can perform both or one of precure irradiation irradiating a predetermined light beam before irradiating the reference light and the signal light on the desired position and postcure irradiation irradiating the predetermined light beam on the desired position in order to make the position unrewritable after recording information on the desired position on the light recording medium, when recording information on a desired position on an optical information recording medium. The device adopts a configuration allowing the means for cure to travel in the driver device. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种同时进行预固化处理或后固化处理的光信息记录/再现装置和数据记录处理，其中一个驱动装置可以控制在记录介质上的任何位置定位的处理。解决方案：在一个驱动器装置中，布置有用于照射记录数据所需的信号光和参考光的装置，以及用于固化的装置，其可以在照射预定光束之前进行预辐射照射照射预定光束参考光和信号光在所需位置上，并且将预定光束照射在期望位置上，以便在将信息记录在所需位置上时将该位置记录在光记录介质上的期望位置之后使位置不可调整光学信息记录介质。该装置采用允许固化装置在驱动装置中行进的构造。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2003296930A Disk recording/reproducing apparatus and reproducing method 审中-公开
标题翻译：磁盘记录/再现装置和再现方法
公开(公告)号：JP2003296930A
公开(公告)日：2003-10-17
申请号：JP2002099522
申请日：2002-04-02
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： AKABOSHI KENJI , SAITO ATSUSHI , IKEDA KAZUHIRO
IPC分类号： G11B20/14 , G11B7/004
摘要： PROBLEM TO BE SOLVED: To optimize PLL shifting detection performance in a wobble recording system, and to prevent disk destruction or the like caused by impossible data reproduction or the overwriting of recorded data in data recording.
SOLUTION: A parameter to be set by a user is provided with an error NG determination threshold setting means, a one-unit NG determination number setting means 119, a continuous OK unit number setting means 129, and an NG unit number setting means 127. By changing the value of the parameter, a sensitivity for outputting a PLL deviation detection interruption is set to an optimal sensitivity requested by the user, and PLL deviation detection performance is optimized in a wobble recording system.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：优化摆动记录系统中的PLL移位检测性能，并防止由于不可能的数据再现或数据记录中的记录数据的重写引起的盘损坏等。
解决方案：由用户设定的参数具有错误NG判定阈值设定单元，单位NG判定次数设定单元119，连续OK单元数设定单元129以及NG单元编号设定通过改变参数值，将PLL偏差检测中断的灵敏度设置为用户要求的最佳灵敏度，并且在摆动记录系统中优化PLL偏移检测性能。版权所有（C）2004，JPO

7. 发明专利

JP2010218590A Recording medium, recording method, recording device, reproducing method, and reproducing device of information 审中-公开
标题翻译：记录介质，记录方法，记录装置，再现方法和再现信息装置
公开(公告)号：JP2010218590A
公开(公告)日：2010-09-30
申请号：JP2009060416
申请日：2009-03-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAGAI YUTAKA , AKABOSHI KENJI
IPC分类号： G11B20/12 , G11B20/10
摘要： PROBLEM TO BE SOLVED: To enhance data reliability while maintaining high compatibility to a conventional format before a density is increased, when the density is increased, during recording to an optical disk.
SOLUTION: A parity having the same structure as that of a normal data cluster is added, and the added position is indicated by a form similar to that of defect management. Thus, data reliability is improved while high compatibility to a conventional device is maintained. A parity is obtained by assuming a virtual cluster for data of a cluster unit insufficient to add a parity. Thus, a freedom of a unit for recording is not reduced. During recording, a parity is added by data reproduced from a disk and input data, and a cluster including a newly generated parity is indicated to have exchangeable relationship with a cluster including a parity before the recording. Thus, the cluster is achieved even on a write-once medium.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：在密度增加之前，当密度增加时，在记录到光盘期间，提高数据可靠性，同时保持与传统格式的高兼容性。
解决方案：添加具有与正常数据集群相同结构的奇偶校验，并且添加位置由与缺陷管理类似的形式表示。因此，提高数据可靠性，同时保持与常规设备的高兼容性。通过假设用于不足以添加奇偶校验的簇单元的数据的虚拟簇来获得奇偶校验。因此，用于记录的单元的自由度不会降低。在记录期间，通过从盘再现的数据和输入数据添加奇偶校验，并且指示包括新生成的奇偶校验的群集与包括记录之前的奇偶校验的群集具有可交换关系。因此，即使在一次写入介质上也可实现集群。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2007328826A Disk recording and reproducing device, recording and reproducing device for recording medium, and data recording and reproducing method 审中-公开
标题翻译：磁盘记录和再现装置，用于记录介质的记录和再现装置以及数据记录和再现方法
公开(公告)号：JP2007328826A
公开(公告)日：2007-12-20
申请号：JP2006156756
申请日：2006-06-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： AKABOSHI KENJI
IPC分类号： G11B20/10 , G11B27/00 , G11B27/36 , H04N5/765 , H04N5/85 , H04N5/91 , H04N5/937
CPC分类号： G11B20/10527 , G11B2020/10703 , G11B2020/10759 , G11B2020/1099 , G11B2020/1277
摘要： PROBLEM TO BE SOLVED: To increase time for a user to select data after exchanging disks without increasing a buffer capacity when copying the data on two or more optical disks to one of optical disks through a buffering means without temporarily saving the data in an external recording means.
SOLUTION: The problem is solved by reducing data transmission speed for an external disk recording and reproducing device B than that before ejecting a disk 1 and instructing the external device B to reduce data recording speed for a disk 2 than that before ejecting the disk 1, during a period after finishing buffering of the disk 1 until the user finishes the selection of data transmitted from the disk 2, that is, until the user starts buffering of the disk 2.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了增加用户在不增加缓冲器容量的情况下在不增加缓冲器容量的情况下选择数据的时间，当通过缓冲装置将数据复制到光盘中的一个光盘时，不会临时保存数据外部记录装置。解决方案：通过降低外部盘记录和再现装置B的数据传输速度来解决问题，而不是弹出磁盘1之前的数据传输速度，并指示外部设备B减少磁盘2的数据记录速度，而不是弹出磁盘磁盘1在完成磁盘1的缓冲之后的一段时间内，直到用户完成从磁盘2发送的数据的选择，即直到用户开始缓冲磁盘2为止。（C）2008年， JPO＆INPIT

9. 发明专利

JP2007305234A Optical disk recording device and recording method of optical disk 审中-公开
标题翻译：光盘记录装置和光盘记录方法
公开(公告)号：JP2007305234A
公开(公告)日：2007-11-22
申请号：JP2006133207
申请日：2006-05-12
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TSUKUDA TAKUMA , AKABOSHI KENJI
IPC分类号： G11B7/0045 , G11B7/09 , G11B7/125
CPC分类号： G11B7/0062 , G11B5/40 , G11B33/1433
摘要： PROBLEM TO BE SOLVED: To perform optimization of strategy in accordance with temperature of a disk surface, optimization of a projection angle of a laser beam, and optimization of recording power, in a transient state in which temperature difference between a drive device and a disk surface is large and temperature of the disk surface is changed gradually. SOLUTION: Temperature of the drive device and the disk surface are detected respectively, appropriate strategy is decided based on the difference of temperature. Control is made so that a laser beam is projected with appropriate angle for tilt of the disk and the laser beam is projected. The above problem is solved by deciding appropriate power in accordance with temperature of the disk surface. COPYRIGHT: (C)2008,JPO&INPIT

10. 发明专利

JP2005122810A Optical disk device 审中-公开
标题翻译：光盘设备
公开(公告)号：JP2005122810A
公开(公告)日：2005-05-12
申请号：JP2003355801
申请日：2003-10-16
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： AKABOSHI KENJI , SAITO ATSUSHI , NIHEI MAKOTO , ISHII JUNICHI
IPC分类号： G11B7/24 , G11B7/00 , G11B7/0045 , G11B7/085 , G11B7/125
CPC分类号： G11B7/1267
摘要： PROBLEM TO BE SOLVED: To safely perform defocus irradiation of high power laser without corrupting data by erroneous data recording or overwrite recording even in recording on an eccentric disk and the occurrence of wobbling in recording, when performing laser emission on a disk recording surface in a defocus state. SOLUTION: A tracking coil is used for further moving an objective lens in the direction of the inner periphery as compared with a PCA region existing at the inner periphery of a disk (the objective lens is moved in the direction of the outer periphery when the PCA region is at the outer periphery). After that, the laser beam is emitted. COPYRIGHT: (C)2005,JPO&NCIPI

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