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51. 发明专利

JP2006018873A Optical disk device 审中-公开
标题翻译：光盘设备
公开(公告)号：JP2006018873A
公开(公告)日：2006-01-19
申请号：JP2004192939
申请日：2004-06-30
申请人： Toshiba Corp , 株式会社東芝
发明人： WATABE KAZUO , MARUYAMA SUMITAKA , IWATA KATSUO , OGAWA AKITO
IPC分类号： G11B7/135 , G11B7/13
CPC分类号： G11B7/13 , G11B7/1374 , G11B7/1376 , G11B2007/0013
摘要： PROBLEM TO BE SOLVED: To provide an optical disk device which can reproduce suitable information having reduced cross talk, when information is reproduced from an optical disk in which the information is recorded in the recording layer of two or more layers. SOLUTION: An optical disk device 11 is characterized in that it is prescribed so that relation of "A/M 2 " prescribed by the area A of a light receiving plane of a photodetector 26 receiving a reflected laser beam reflected in first and second recording layers of the optical disk and outputting a reproduced signal and transverse magnification M (ratio of focal distance fo of an objective lens to focal distance fc of a condenser lens) of a light receiving system through which a reflected laser beam passes, lies in a specified range. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种光盘装置，当信息从其中信息被记录在两层或更多层的记录层中的光盘再现时，可以再现具有减少串扰的合适信息。解决方案：光盘装置11的特征在于规定了由光接收器26的光接收面的区域A规定的“A / M 2 ”的关系，在光盘的第一和第二记录层中反射的反射激光束，并且将光线接收系统的再现信号和横向放大率M（物镜的焦距fo与聚光透镜的焦距fc的比率）输出，反射激光束通过，位于指定范围内。版权所有（C）2006，JPO＆NCIPI

52. 发明专利

JP2004259439A Optical disk and its recording and playing-back device 有权
公开(公告)号：JP2004259439A
公开(公告)日：2004-09-16
申请号：JP2004137541
申请日：2004-05-06
申请人： Toshiba Corp , 株式会社東芝
发明人： WATABE KAZUO , IWATA KATSUO
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 the thickness of an effective light transmission layer and the range of 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 consisting of 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 is no constant and constants t1 and t2 determined based on the maximum permissible value of aberration in the light transmission layer consisting of 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 an optical disk device has and the total thickness of the cover layer 56, the intermediate layer 54 and the information recording layer 55 except the information recording layer 53 the nearest to the substrate 52 is set to be f(n)+t2 or less. COPYRIGHT: (C)2004,JPO&NCIPI

53. 发明专利

JP2004253129A Multi-purpose information storage medium, its storing and reproducing method, and its reproducing device 有权
公开(公告)号：JP2004253129A
公开(公告)日：2004-09-09
申请号：JP2004113521
申请日：2004-04-07
申请人： Toshiba Corp , 株式会社東芝
发明人： ANDO HIDEO , WATABE KAZUO , SATO YUJI , SUGAYA JUKO , NODAN CHOSAKU
IPC分类号： G11B20/10 , G11B7/004 , G11B7/007 , G11B20/12
摘要： PROBLEM TO BE SOLVED: To provide a data structure excellent in compatibility for various information recording media. SOLUTION: A user data recording area 303 and an intermediate area 301 are alternately prepared on a recording medium 9 and the intermediate area is recorded with the information used for synchronizing. The specific relations are maintained for the positions of a postamble, the start of a specific wobble pattern, the start of the recorded data, and the end of the preceding units of recording. And the recorded data include an ECC block and at least one of the specific wobble patterns is arranged right in front of the start position of the ECC block. COPYRIGHT: (C)2004,JPO&NCIPI

54. 发明专利

JP2004164851A Information storage medium, information recording method, and information recording and reproducing device 有权
公开(公告)号：JP2004164851A
公开(公告)日：2004-06-10
申请号：JP2004033455
申请日：2004-02-10
申请人： Toshiba Corp , 株式会社東芝
发明人： ANDO HIDEO , WATABE KAZUO
IPC分类号： G11B20/10 , G11B7/0045 , G11B7/005 , G11B7/30 , G11B20/12
摘要： PROBLEM TO BE SOLVED: To achieve high density recording while preventing overlap between recording units. SOLUTION: Data recording is performed optically for a track 112 of an optical disk 9 having a spiral type track 112 of a pitch Pt and having a plurality of side plane recording layers 122, 123 piled holding an intermediate layer 124 having a refractive index (n) and thickness (t) between them through an objective lens 121 having the number of openings NA and the intermediate layer 124. When data recording is performed continuously for each prescribed recording unit along the track 112, a gap 111 is made between the prescribed recording units in the direction along the track 112. Where, the device is constituted so that length δof the gap 111 existing between the prescribed recording units is δ≤π(D+Pt)D/Pt where, D=2t tan[sin -1 (NA/n)]. COPYRIGHT: (C)2004,JPO

55. 发明专利

JP2014067459A Lens driving device, information recording/reproducing device, and electronic device 审中-公开
标题翻译：镜头驱动装置，信息记录/再现装置和电子装置
公开(公告)号：JP2014067459A
公开(公告)日：2014-04-17
申请号：JP2012210077
申请日：2012-09-24
申请人： Toshiba Corp , 株式会社東芝
发明人： SHINOZUKA KEIJI , WATABE KAZUO
IPC分类号： G11B7/126 , G02B7/04 , G11B7/135 , G11B7/1392 , H02K33/16
CPC分类号： G11B7/0903 , G11B7/0933 , G11B7/0935 , G11B7/24038 , G11B7/2405
摘要： PROBLEM TO BE SOLVED: To provide a lens driving device which can be made compact and has a simple structure capable of driving a lens in a direction of an optical axis thereof, and to provide an information recording/reproducing device and electronic device having the same.SOLUTION: According to an embodiment, a lens driving device has a movable member (414), fixed members (401, 407), and magnets (405, 406). The movable member holds a lens (418) and coils (421, 422). The fixed members support the movable member using elastic members (410, 411) such that the movable member is movable in a direction of an optical axis of the lens. The magnets are provided on a fixed member (401) and cause driving force to be exerted on the movable member through interaction with the coils. Either the coils or the magnets or both protrude from the fixed members in a direction perpendicular to the optical axis of the lens.
摘要翻译：要解决的问题：提供一种能够制造得紧凑并且具有能够在其光轴方向上驱动透镜的简单结构的透镜驱动装置，并且提供一种信息记录/再现装置和具有该透镜驱动装置的电子装置解决方案：根据实施例，透镜驱动装置具有可动构件（414），固定构件（401,407）和磁体（405,406）。可移动部件保持透镜（418）和线圈（421,422）。固定构件使用弹性构件（410,411）支撑可动构件，使得可移动构件可在透镜的光轴的方向上移动。磁体设置在固定构件（401）上，并且通过与线圈的相互作用使驱动力施加在可动构件上。线圈或磁体或者两者都在垂直于透镜的光轴的方向上从固定构件突出。

56. 发明专利

JP2014049164A Optical storage medium, information recorder, and information recording method 审中-公开
标题翻译：光存储介质，信息记录仪和信息记录方法
公开(公告)号：JP2014049164A
公开(公告)日：2014-03-17
申请号：JP2012192526
申请日：2012-08-31
申请人： Toshiba Corp , 株式会社東芝
发明人： WATABE KAZUO , OKANO HIDEAKI , OGAWA AKITO
IPC分类号： G11B7/24 , G11B7/0045 , G11B7/007 , G11B7/09 , G11B7/135 , G11B7/24035 , G11B7/24038
CPC分类号： G11B7/24035 , G11B7/24038 , G11B7/2405 , Y10T428/2495 , Y10T428/24975
摘要： PROBLEM TO BE SOLVED: To provide an optical storage medium capable of reducing interlayer crosstalk by a laser beam directed to a servo layer (guide layer).SOLUTION: The optical storage medium of an embodiment includes a guide layer, a recording layer group, and a guide layer side intermediate layer. The recording layer group comprises a plurality of recording layers and a plurality of intermediate layers arranged between the plurality of recording layers. The guide layer side intermediate layer is a layer located between a first recording layer being the closest to the guide layer among the plurality of recording layers, and the guide layer, and the thickness T1 of the guide layer side intermediate layer does not coincide with the sum S1 of thicknesses of optionally continuous intermediate layers included in the recording layer group.
摘要翻译：要解决的问题：提供一种能够通过指向伺服层（引导层）的激光束来减少层间串扰的光存储介质。解决方案：实施例的光存储介质包括引导层，记录层组和引导层侧中间层。记录层组包括多个记录层和布置在多个记录层之间的多个中间层。引导层侧中间层是位于多个记录层之间最靠近引导层的第一记录层之间的层和引导层，并且引导层侧中间层的厚度T1不与包含在记录层组中的可选连续的中间层的厚度的总和S1。

57. 发明专利

JP2009301653A Optical head apparatus and information recording/reproducing apparatus using the same 审中-公开
标题翻译：光头装置和信息记录/再现装置
公开(公告)号：JP2009301653A
公开(公告)日：2009-12-24
申请号：JP2008155610
申请日：2008-06-13
申请人： Toshiba Corp , 株式会社東芝
发明人： KAJI NOBUAKI , USUI TAKASHI , KURODA KAZUTO , WATABE KAZUO , YUSU KEIICHIRO , NODA CHOSAKU , SAITO MASAHIRO
IPC分类号： G11B7/125 , G11B7/0045 , H01S5/022 , H01S5/042
摘要： PROBLEM TO BE SOLVED: To provide an information recording/reproducing apparatus for recording information in a recording medium using a pulse laser beam of a sub nano class generated with relaxation vibration as a recording pulse recording information, and an optical head apparatus used for the same, wherein output of a recording pulse is stabilized. SOLUTION: The optical head apparatus includes a laser driving circuit (9) supplying, to a laser element (20), a driving current regulated so that light output from the laser element includes continuous two or more peaks and each interval between two peaks is 200 ps (picosecond) or less, wherein the temperature of an information recording layer of an optical disk is increased in a short time to form a recording mark. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种信息记录/再现装置，用于使用由松弛振动产生的亚纳米级的脉冲激光束作为记录脉冲记录信息在记录介质中记录信息，以及使用的光学头装置同样地，其中记录脉冲的输出稳定。光头装置包括：激光驱动电路（9），向激光元件（20）提供驱动电流，所述驱动电流被调节为使得从激光元件输出的光包括连续的两个或更多个峰，并且在两个之间的每个间隔峰值为200ps（皮秒）以下，其中光盘的信息记录层的温度在短时间内增加以形成记录标记。版权所有（C）2010，JPO＆INPIT

58. 发明专利

JP2009245557A Information recording method and device 审中-公开
标题翻译：信息记录方法和装置
公开(公告)号：JP2009245557A
公开(公告)日：2009-10-22
申请号：JP2008093643
申请日：2008-03-31
申请人： Toshiba Corp , 株式会社東芝
发明人： USUI TAKASHI , WATABE KAZUO , NODA CHOSAKU
IPC分类号： G11B7/0045 , G11B7/125 , G11B20/18
CPC分类号： G11B7/0062 , G11B7/24079
摘要： PROBLEM TO BE SOLVED: To provide an information recording method capable of improving its direct overwriting characteristics, and to provide an information recording device using the same. SOLUTION: In an information recording method which uses short-pulse light using relaxation oscillation of a semiconductor laser, the direct overwrite characteristics are improved by using light having a cooling pulse driven by a current smaller than the light-emitting threshold current of the semiconductor laser after the last recording pulse of a short pulse train recording a predetermined length of a mark, and further having a boost pulse driven by a current larger than an erase pulse drive current at the head of the erase pulse. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够改善其直接重写特性的信息记录方法，并提供使用该信息记录装置的信息记录装置。解决方案：在使用使用半导体激光器的弛豫振荡的短脉冲光的信息记录方法中，通过使用具有由小于发光阈值电流的电流驱动的冷却脉冲的光来改善直接重写特性在记录预定长度的标记的短脉冲序列的最后记录脉冲之后的半导体激光器，并且还具有由在擦除脉冲的头部处的大于擦除脉冲驱动电流的电流驱动的升压脉冲。版权所有（C）2010，JPO＆INPIT

59. 发明专利

JP2009181661A Information recording device and its control method 审中-公开
标题翻译：信息记录装置及其控制方法
公开(公告)号：JP2009181661A
公开(公告)日：2009-08-13
申请号：JP2008021413
申请日：2008-01-31
申请人： Toshiba Corp , 株式会社東芝
发明人： KAJI NOBUAKI , WATABE KAZUO , USUI TAKASHI , YUSU KEIICHIRO , NODA CHOSAKU , KURODA KAZUTO , SAITO MASAHIRO
IPC分类号： G11B7/0045 , G11B7/125
CPC分类号： G11B7/00456 , G11B7/126
摘要： PROBLEM TO BE SOLVED: To obtain a good quality and stable mark by selectively using a plurality of single pulse and a complex pulse according to their purposes, when a pulse laser beam of sub-nano class generated accompanying relaxation vibration is used. SOLUTION: The information recording device includes a laser drive circuit which supplies drive current to a laser device and has a first current source outputting a first current of a rectangular wave, a second drive current source outputting a second current for emphasizing a terminal level of the first current, and a third current source outputting a third current of a value being a threshold value or less at which a laser device causes oscillation. A control part controls first, second and third current sources 131, 132 and 133 to selectively obtain: a two-or-more-times laser beam use mode in which a pulse laser beam accompanying relaxation vibration is used intermittently two or more times; and a complex laser beam use mode using laser beam where laser pulses are combined and whose leading edge has an abrupt impulse change portion caused by relaxation vibration and whose intermediate section is flat portion with a fixed intensity. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题为了通过选择性地使用多个单个脉冲和复合脉冲根据其目的获得良好的质量和稳定的标记，当使用伴随弛豫振动产生的亚纳米级的脉冲激光束时。解决方案：信息记录装置包括：激光驱动电路，其向激光装置提供驱动电流，并具有输出矩形波的第一电流的第一电流源;输出用于强调端子的第二电流的第二驱动电流源输出第一电流的电平，以及第三电流源，输出激光装置引起振荡的阈值以下的值的第三电流。控制部分控制第一，第二和第三电流源131,132和133，以选择性地获得：间歇地使用伴随放松振动的脉冲激光束的两次或更多次激光束使用模式两次或更多次; 以及使用激光脉冲组合的激光束的复合激光束使用模式，其前缘具有由松弛振动引起的突然脉冲变化部分，其中间部分是具有固定强度的平坦部分。版权所有（C）2009，JPO＆INPIT

60. 发明专利

JP2009181649A Information recording medium, information recording method, and information recording/reproducing system 审中-公开
标题翻译：信息记录媒体，信息记录方法和信息记录/再现系统
公开(公告)号：JP2009181649A
公开(公告)日：2009-08-13
申请号：JP2008020950
申请日：2008-01-31
申请人： Toshiba Corp , 株式会社東芝
发明人： YUSU KEIICHIRO , SAITO MASAHIRO , KURODA KAZUTO , USUI TAKASHI , WATABE KAZUO , NODA CHOSAKU , KAJI NOBUAKI , NAKAI TSUKASA
IPC分类号： G11B7/0045 , G11B7/125 , G11B7/24 , G11B7/243
CPC分类号： G11B7/0062 , G11B7/126 , G11B7/259 , G11B2007/24306 , G11B2007/2431 , G11B2007/24314 , G11B2007/24316
摘要： PROBLEM TO BE SOLVED: To achieve high-speed recording and erasing without causing cross erase. SOLUTION: In information recording medium which uses a phase change material for recording, reproducing, and erasing information on a recording layer by light illumination, a recrystalization width WR and a recording width WA at a periphery of an amorphous recording mark formed in the recording layer by light irradiation, and a track pitch TP satisfy 1.0 COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：实现高速记录和擦除而不会导致交叉擦除。解决方案：在使用相变材料的信息记录介质中，通过光照射在记录层上记录，再现和擦除信息，在非晶记录标记的周围形成重结晶宽度WR和记录宽度WA，形成在通过光照射的记录层，轨道间距TP满足1.0

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