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1. 发明专利

JP2002367183A Optical disk 有权
标题翻译：光盘
公开(公告)号：JP2002367183A
公开(公告)日：2002-12-20
申请号：JP2001172883
申请日：2001-06-07
申请人： Hitachi Ltd , Matsushita Electric Ind Co Ltd , Toshiba Corp , 松下電器産業株式会社 , 株式会社日立製作所 , 株式会社東芝
发明人： WATABE KAZUO , NOZEN CHOSAKU , OSAWA HIDEAKI , MIYAMOTO JIICHI , KUROKAWA TAKAHIRO , ISHIDA TAKASHI , NAKAMURA ATSUSHI
IPC分类号： G11B7/007 , G11B7/0045
摘要： PROBLEM TO BE SOLVED: To provide a recording format of an optical disk with which a crosstalk between information recording layers of a double layer recording medium is decreased and the decrease in a user data volume is alleviated.
SOLUTION: On the optical disk, a header region is deployed in a disconnected region on a groove track and identification information by prepit is recorded. A header region is formed along the track with an approximately constant interval D (mm), and an arbitrary one turn of the track in the disk has a length of M×D+α (mm) or M×D-α (mm) (M: positive integer, α: positive real number, not zero). Further, the prepit header in the header region on which the identification information is recorded is divided into two parts and disposed between divided prepit headers on adjacent tracks.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供双层记录介质的信息记录层之间的串扰减小并且减轻用户数据量的减少的光盘的记录格式。解决方案：在光盘上，头部区域部署在凹槽轨道上的断开区域，并记录通过预凹坑的识别信息。沿着轨道以大致恒定的间隔D（mm）形成头部区域，并且盘中的轨道的任意一匝具有M×D +α（mm）或M×D-α（mm）的长度，（M：正整数，α：正实数，不为零）。此外，将记录有识别信息的标题区域中的预凹坑标题分成两部分，并且设置在相邻轨道上的分割的预凹坑头之间。

2. 发明专利

JP2013157057A Electronic apparatus, recording medium and recording/reproducing method 有权
标题翻译：电子装置，记录媒体和记录/再现方法
公开(公告)号：JP2013157057A
公开(公告)日：2013-08-15
申请号：JP2012017311
申请日：2012-01-30
申请人： Toshiba Corp , 株式会社東芝
发明人： WATABE KAZUO
IPC分类号： G11B7/005 , G11B7/09 , G11B7/12 , G11B7/135 , G11B17/028
CPC分类号： G11B19/2009 , G11B7/1275 , G11B7/24 , G11B7/24038
摘要： PROBLEM TO BE SOLVED: To provide an electronic apparatus capable of recording information in a recording medium and of reproducing the information from the recording medium, and further to provide a recording/reproducing method thereof.SOLUTION: An electronic apparatus comprises a turntable, a servo information providing mechanism and a recording/reproducing section. The turntable rotates a recording medium including recording layers along a surface where the recording layers extend. The servo information providing mechanism is provided on a surface opposite to the recording layers of the recording medium on the turntable and provides servo information used for recording information in the recording medium or for reproducing the information from the recording medium. The recording/reproducing section irradiates the recording layers of the recording medium with light having a first wavelength and light having a second wavelength different from the light having the first wavelength from a side opposite to the turntable.
摘要翻译：要解决的问题：提供一种能够在记录介质中记录信息并从记录介质再现信息的电子设备，并且还提供其记录/再现方法。解决方案：一种电子设备，包括转盘，伺服信息提供机构和记录/再现部分。转盘沿着记录层延伸的表面旋转包括记录层的记录介质。伺服信息提供机构设置在与转盘上的记录介质的记录层相反的表面上，并且提供用于在记录介质中记录信息的伺服信息或用于从记录介质再现信息。记录/再现部分从具有第一波长的光和具有与具有第一波长的光不同的第二波长的光从与转盘相对的一侧照射记录介质的记录层。

3. 发明专利

JP2012185883A Optical pickup head, information recording device, reproducer, and method 有权
标题翻译：光学拾取头，信息记录装置，再现器和方法
公开(公告)号：JP2012185883A
公开(公告)日：2012-09-27
申请号：JP2011048181
申请日：2011-03-04
申请人： Toshiba Corp , 株式会社東芝
发明人： WATABE KAZUO , OKANO HIDEAKI , USUI TAKASHI , TANIOKA CHIKARA , OGAWA AKITO , DOI KAZUAKI
IPC分类号： G11B7/135 , G11B7/004 , G11B7/09
CPC分类号： G11B7/14 , G11B7/0045 , G11B7/126 , G11B7/1376 , G11B7/24038 , G11B7/2405
摘要： PROBLEM TO BE SOLVED: To enable recording and reproduction of data with a high speed.SOLUTION: An information recording and reproducing device includes a light source, a first objective lens, a second objective lens, a driving unit, a first control unit, a second control unit, and a light receiving unit. The light source projects a light bundle to an information recording medium having a plurality of information recording layers. The first objective lens collects a light bundle from a first light soure on a first information recording layer to form a first light spot. The second objective lens collects a light bundle from a second light source on a second information recording layer to form a second light spot. The driving unit moves the first and second objective lenses in a first direction being a vertical direction with respect to a direction of recording information in a track and showing a direction on an information recording layer surface, and in a second direction showing a lamination direction of the information recording layers. The first control unit restores positional deviation of the first light spot from a target track to the target track along the first direction. The second control unit controls a movement direction of the position of the second light spot in the second direction. The light receiving unit receives each of reflection light beams being the light bundles reflected at the first and second information recording layers.
摘要翻译：要解决的问题：实现高速数据的记录和再现。解决方案：信息记录和再现装置包括光源，第一物镜，第二物镜，驱动单元，第一控制单元，第二控制单元和光接收单元。光源将光束投射到具有多个信息记录层的信息记录介质。第一物镜在第一信息记录层上从第一光源收集光束以形成第一光点。第二物镜从第二信息记录层上的第二光源收集光束以形成第二光斑。驱动单元使第一和第二物镜相对于记录在轨道中的信息的方向的垂直方向的第一方向移动，并且示出信息记录层表面上的方向，并且在第二方向上显示层叠方向信息记录层。第一控制单元沿着第一方向恢复第一光点从目标轨迹到目标轨道的位置偏差。第二控制单元控制第二光点在第二方向上的位置的移动方向。光接收单元接收作为在第一和第二信息记录层反射的光束的反射光束。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2011204354A Optical disk and recording and reproduction device therefor 有权
标题翻译：光盘及其记录和再现设备
公开(公告)号：JP2011204354A
公开(公告)日：2011-10-13
申请号：JP2011154160
申请日：2011-07-12
申请人： Toshiba Corp , 株式会社東芝
发明人： WATABE KAZUO , IWATA KATSUO
IPC分类号： G11B7/24
摘要： PROBLEM TO BE SOLVED: To provide a satisfactory optical disk suitable for high density recording by regulating ranges of an effective thickness and a refractive index of a light transmission layer in a next generation optical disk and the like, and to provide a recording and reproduction device for the optical disk suitable for high density recording.SOLUTION: In the optical disk, an information recording layer formed on a substrate is covered with a cover layer having light transmissible properties. The thickness t of the cover layer is set in a range of f(n)-t1≤t≤f(n)+t2 by using a function f(n) relating to the refractive index n of the cover layer and constants t1 and t2 set on the basis of permissible values of the aberration of the cover layer.
摘要翻译：要解决的问题：为了通过调节下一代光盘等中的光透射层的有效厚度和折射率的范围来提供适合于高密度记录的令人满意的光盘，并且提供一种记录和再现装置适用于高密度记录的光盘。解决方案：在光盘中，形成在基板上的信息记录层被具有透光性的覆盖层覆盖。通过使用与覆盖层的折射率n相关的函数f（n）将覆盖层的厚度t设定在f（n）-t1≤t≤f（n）+ t2的范围内，并且常数t1和 t2基于覆盖层的像差的允许值设定。

5. 发明专利

JP2009104753A Optical head device and information recording/reproducing apparatus using the same 审中-公开
标题翻译：光头设备和信息记录/再现设备
公开(公告)号：JP2009104753A
公开(公告)日：2009-05-14
申请号：JP2007278108
申请日：2007-10-25
申请人： Toshiba Corp , 株式会社東芝
发明人： KAJI NOBUAKI , WATABE KAZUO , USUI TAKASHI , YASU KEIICHIRO , NODA CHOSAKU , KURODA KAZUTO , SAITO MASAHIRO
IPC分类号： G11B7/125
CPC分类号： G11B7/126 , H01S5/0428
摘要： PROBLEM TO BE SOLVED: To stabilize a recording pulse length in an information recording/reproducing apparatus which records information in a recording medium sub-nanosecond class pulse laser light which is generated along with relaxation oscillation, as recording pulses for recording information, and in an optical head device for use in the information recording/reproducing apparatus. SOLUTION: This invention includes a laser drive circuit (105) which supplies a drive current to a laser element for outputting light having a predetermined wavelength, and a laser control circuit (104, 105) which supplies a predetermined timing pulse for generating relaxation oscillation in a laser drive current supplied to the laser drive circuit. The laser control circuit supplies a laser drive current higher than a threshold value from the laser drive circuit to the laser element to enable the laser element to output laser light. The laser control circuit also sets the laser drive current at a level lower than the threshold value on the basis of the timing pulse. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了稳定记录在与弛豫振荡一起产生的亚纳秒级脉冲激光的记录介质中的信息的信息记录/再现装置中的记录脉冲长度，作为用于记录信息的记录脉冲，以及用于信息记录/再现装置的光头装置。解决方案：本发明包括激光驱动电路（105），激光驱动电路（105）向激光元件提供驱动电流，用于输出具有预定波长的光;以及激光控制电路（104,105），其提供用于产生的预定定时脉冲提供给激光驱动电路的激光驱动电流中的弛豫振荡。激光控制电路从激光驱动电路向激光元件提供高于阈值的激光驱动电流，以使激光元件能够输出激光。激光控制电路还基于定时脉冲将激光器驱动电流设定在低于阈值的水平。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2008181657A Optical disk and its recording and playing-back device 审中-公开
标题翻译：光盘及其记录和播放装置
公开(公告)号：JP2008181657A
公开(公告)日：2008-08-07
申请号：JP2008068325
申请日：2008-03-17
申请人： Toshiba Corp , 株式会社東芝
发明人： WATABE KAZUO , IWATA KATSUO
IPC分类号： G11B7/24
摘要： PROBLEM TO BE SOLVED: To provide an optical disk suitable for high density recording by designating effective ranges of the thickness of a light transmission layer and the refractive index of the light transmission layer in a next generation optical disk etc. and to provide its recording and playing-back device. SOLUTION: In the optical disk 51 including a substrate 52, an information recording layer 53, an intermediate layer 54, an information recording layer 55 and a cover layer 56, the thickness t of the cover layer 56 is set to be f(n)-t1 or more by using a function f(n) which is related to the refractive index n of the cover layer 56, and constants t1 and t2 determined based on the maximum permissible value of aberration in the light transmission layer including the cover layer 56, the information recording layers 53 and 55 and the intermediate layer 54 which can be corrected by a spherical aberration correcting mechanism 24 that is included in an optical disk device, and the total thickness of the cover layer 56, the intermediate layer 54 and the information recording layer 55 excluding the information recording layer 53 that is the nearest to the substrate 52 is set to be f(n)+t2 or less. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了通过指定光传输层的厚度的有效范围和下一代光盘等中的光透射层的折射率来提供适合于高密度记录的光盘，并且提供其录音和播放设备。解决方案：在包括基板52，信息记录层53，中间层54，信息记录层55和覆盖层56的光盘51中，覆盖层56的厚度t被设置为f （n）-t1以上，通过使用与覆盖层56的折射率n相关的函数f（n），以及基于包含透明层56的光透射层中的像差的最大允许值而确定的常数t1和t2 可以通过包括在光盘装置中的球面像差校正机构24来校正的覆盖层56，信息记录层53和55以及中间层54以及覆盖层56，中间层54的总厚度并且除了最靠近基板52的信息记录层53之外的信息记录层55被设置为f（n）+ t2或更小。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2006269073A Multipurpose information storage medium, storage method, reproducing method and reproducing device 审中-公开
标题翻译：多用途信息存储介质，存储方法，再现方法和再现设备
公开(公告)号：JP2006269073A
公开(公告)日：2006-10-05
申请号：JP2006152742
申请日：2006-05-31
申请人： Toshiba Corp , 株式会社東芝
发明人： ANDO HIDEO , WATABE KAZUO , SATO YUJI , SUGAYA JUKO , NODA CHOSAKU
IPC分类号： G11B20/12 , G11B7/007 , G11B20/18
摘要： PROBLEM TO BE SOLVED: To provide a data structure having superior compatibility for various kinds of information recording media. SOLUTION: In this storage medium 9, a user data recording region 303 and an intermediate region 301 are alternatively arranged and information used for synchronization matching is recorded in the intermediate region. Moreover, a special relationship has been established among starting positions of a post-amble and a specific wobble pattern, the recording start position of recording data and the writing end position of the preceding recording data in a recording unit. Furthermore, the recording data include an ECC block and at least either of the specific wobble patterns is arranged immediately prior to an ECC block start position. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供对各种信息记录介质具有优异兼容性的数据结构。解决方案：在该存储介质9中，交替地布置用户数据记录区域303和中间区域301，并且用于同步匹配的信息被记录在中间区域中。此外，已经在后记录和特定摆动模式的开始位置，记录数据的记录开始位置和前一记录数据的写入结束位置在记录单元中建立了特殊的关系。此外，记录数据包括ECC块，并且紧接在ECC块开始位置之前布置特定摆动模式中的至少一个。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2006209924A Optical pickup device and information recording reproducing device 审中-公开
标题翻译：光学拾取装置和信息记录再现装置
公开(公告)号：JP2006209924A
公开(公告)日：2006-08-10
申请号：JP2005024481
申请日：2005-01-31
申请人： Toshiba Corp , 株式会社東芝
发明人： KAJI NOBUAKI , MARUYAMA SUMITAKA , OGAWA AKITO , WATABE KAZUO
IPC分类号： G11B7/135 , G11B7/007
CPC分类号： G11B7/1353 , G11B7/131 , G11B2007/0006
摘要： PROBLEM TO BE SOLVED: To correctly apply tracking to any tracks with different pitches in an optical pickup device for recording, or reproducing, or erasing information on an information recording medium having multiple tracks of different pitches. SOLUTION: By detecting, among reflected beam from a recording surface of the recording medium, multiple beams using a divided optical element 28 configured so that a part of dividing boundary passes between a zeroth beam and an edge of a primary diffracted beam, where an angle of diffraction is the smallest, and the edge of the primary diffracted beam, where the angle of the diffraction is the largest, among the ± primary diffracted beam generated in a different diffraction angle depending on the pitch of the track, for obtaining a tracking error, an optical pickup 10 can correctly apply the tracking to any tracks of the optical disk including the tracks of the different pitches. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了在具有用于在具有不同间距的多个轨道的信息记录介质上记录或再现或擦除信息的光拾取装置中的任何具有不同间距的轨迹正确地应用跟踪。解决方案：通过检测来自记录介质的记录表面的反射光束中的多个光束，其使用分割光学元件28，其被配置为使得一部分分割边界在第零光束和主衍射光束的边缘之间通过，其中衍射角最小，并且衍射角度最大的主衍射光束的边缘在根据轨道的间距以不同的衍射角产生的±一次衍射光束中，以获得跟踪误差，光学拾取器10可以将跟踪正确地应用到包括不同间距的轨道的光盘的任何轨道上。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2006209922A Information recording and reproducing device, optical pickup device and method of controlling position of objective lens 审中-公开
标题翻译：信息记录和再现装置，光学拾取装置和控制目标镜头位置的方法
公开(公告)号：JP2006209922A
公开(公告)日：2006-08-10
申请号：JP2005024479
申请日：2005-01-31
申请人： Toshiba Corp , 株式会社東芝
发明人： OKANO HIDEAKI , WATABE KAZUO , MARUYAMA SUMITAKA
IPC分类号： G11B7/09 , G11B7/135
CPC分类号： G11B7/08511 , G11B7/131 , G11B7/1353 , G11B7/1381
摘要： PROBLEM TO BE SOLVED: To stabilize focus control of the objective lens of an optical pickup used in the optical disk recording and reproducing device. SOLUTION: Let Tp be the track pitch of an optical disk, NA be the numerical aperture of the objective lens and Fp be the detection range of a focus error. Then, the optical pickup has a servo circuit, to which a focus detection range that is controlled to be within the range of 2Tp/(NAxFp) COPYRIGHT: (C)2006,JPO&NCIPI

10. 发明专利

JP2004087043A Optical disk and optical disk device 审中-公开
公开(公告)号：JP2004087043A
公开(公告)日：2004-03-18
申请号：JP2002249202
申请日：2002-08-28
申请人： Toshiba Corp , 株式会社東芝
发明人： IWATA KATSUO , WATABE KAZUO
IPC分类号： G11B7/24 , G11B7/004
摘要： PROBLEM TO BE SOLVED: To provide an optical disk suitable for high-density recording by regulating a range of the thickness and refractive index of a light transmission layer effective in the next generation optical disk. SOLUTION: The refractive index of the light transmission layer of the optical disk is set at a range of from 1.52 to 1.72, the numerical aperture of a lens for irradiating the light transmission layer with a laser beam made incident thereon is set at 0.65 and the wavelength range of the laser beam is set at a range of from 395 to 415 nm. The thickness t of the light transmission layer is set at a range of f(n)-tl≤t≤f(n)+t2 by using the constants t1 and t2 to be determined by using a permissible value of aberrations and a function f(n) of the refractive index n. COPYRIGHT: (C)2004,JPO

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