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公开(公告)号：US10115426B1
公开(公告)日：2018-10-30
申请号：US15936949
申请日：2018-03-27
发明人： Yu-Ta Ho , Chou-Chien Chien
摘要： A method is provided for judging whether a double-sided optical disc is placed reversely. Firstly, the disc is loaded. Then, a first optical pickup head emits a first laser beam to a first specified area of the disc and receives a first reflected laser beam. A second optical pickup head emits a second laser beam to a second specified area of the disc and receives a second reflected laser beam. If the first reflected laser beam generates an alternate brightness and darkness change and the second reflected laser beam does not generate the alternate brightness and darkness change, the disc is not placed reversely. If the first reflected laser beam does not generate the alternate brightness and darkness change and the second reflected laser beam generates the alternate brightness and darkness change, the disc is placed reversely.
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公开(公告)号：US09299383B2
公开(公告)日：2016-03-29
申请号：US13348797
申请日：2012-01-12
申请人： Tetsuo Nishidate
发明人： Tetsuo Nishidate
CPC分类号： G11B7/12 , G11B7/08 , G11B7/08582 , G11B7/135 , G11B7/1353 , G11B7/22 , H04N5/2251
摘要： An optical element holder comprises a placement face on which an optical element is placed, the placement face obtained using one face of a sheet of metal; a positioning wall used for positioning the optical element placed on the placement face, the positioning wall being a stepped portion obtained by folding of the sheet of metal; and a spring section, which is a portion obtained by further folding of part of the portion folded over in order to obtain the positioning wall.
摘要翻译： 光学元件保持器包括放置光学元件的放置面，使用金属片的一面获得的放置面; 定位壁，用于定位放置在放置面上的光学元件，定位壁是通过折叠金属片而获得的台阶部分; 以及弹簧部，其是通过进一步折叠部分折叠部分而获得的部分，以获得定位壁。
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公开(公告)号：US09236081B1
公开(公告)日：2016-01-12
申请号：US14674360
申请日：2015-03-31
发明人： Alfredo S. Chu , Jason W. Riddering , Drew M. Mader , Huazhou Lou , Pu-Ling Lu
IPC分类号： G11B11/00 , G11B7/1267 , G11B11/105 , G11B7/1263 , G11B7/12 , G11B5/48 , G11B5/60
CPC分类号： G11B7/1263 , G11B5/012 , G11B5/455 , G11B5/4866 , G11B5/6088 , G11B11/10595 , G11B2005/0021
摘要： A method includes setting a heat assisted magnetic recording (HAMR) device located in a data storage system having a laser to an operating temperature. A threshold laser current is determined. An optimal laser current is determined. The threshold laser current and the optimal laser current are stored in memory. The steps of determining a threshold laser current, determining an optimal laser current and storing the threshold laser current and the optimal laser current into the calibration table are repeated until acceptable device performance is achieved at more than one operating temperature.
摘要翻译： 一种方法包括将位于具有激光的数据存储系统中的热辅助磁记录（HAMR）装置设置到工作温度。 确定阈值激光电流。 确定最佳激光电流。 阈值激光电流和最佳激光电流存储在存储器中。 重复确定阈值激光电流，确定最佳激光电流并将阈值激光电流和最佳激光电流存储到校准表中的步骤，直到在多于一个工作温度下实现可接受的器件性能。
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公开(公告)号：US20150116850A1
公开(公告)日：2015-04-30
申请号：US14584633
申请日：2014-12-29
申请人： HOYA CORPORATION
摘要： A metal mold including: a first inner metal mold which forms a first lens surface and a first flat surface portion of a lens; a first outer metal mold which forms a second flat surface portion; a second inner metal mold which forms a second lens surface and a third flat surface portion; and a second outer metal mold which forms a fourth flat surface portion, and wherein a first protruded portion which forms a first concaved portion on the lens is formed all around an outer periphery of the first inner metal mold, the first concaved portion serving as clearance for a burr, and a second protruded portion which forms a second concaved portion on the lens is formed all around an outer periphery of the second inner metal mold, the second concaved portion serving as clearance for a burr.
摘要翻译： 一种金属模具，包括：形成透镜的第一透镜表面和第一平坦表面部分的第一内部金属模具; 形成第二平坦表面部分的第一外部金属模具; 第二内金属模，其形成第二透镜表面和第三平表面部分; 以及形成第四平面部的第二外金属模，并且其中在所述透镜上形成第一凹部的第一突出部分形成在所述第一内金属模的外周周围，所述第一凹部用作间隙 在第二内金属模具的外周围形成有用于毛刺的第二突出部分，并且形成在透镜上的第二凹部，第二凹部用作毛刺的间隙。
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公开(公告)号：US09021513B2
公开(公告)日：2015-04-28
申请号：US13919398
申请日：2013-06-17
发明人： Young-bin Lee
CPC分类号： G11B7/1201 , G11B7/0932 , G11B7/0933
摘要： Provided are apparatuses for grounding the objective lens driving unit of an optical pickup device. An optical pickup device includes an objective lens driving unit and a base that supports the objective lens driving unit, and wherein the objective lens driving unit includes a moving structure including an objective lens and a plurality of drive coils; a static structure comprising magnets corresponding to the plurality of drive coils, a yoke that supports the magnets, and a wire holder that has a plurality of wiring layers including a ground wiring layer; a plurality of suspension wires that connect the plurality of drive coils to the plurality of wiring layers; a supporting portion connected to the yoke and fixed to the wire holder; a projection extending from the supporting portion and disposed adjacent to the ground wiring layer; and conductive bonding material connects the ground wiring layer with the projection.
摘要翻译： 提供了用于使光学拾取装置的物镜驱动单元接地的装置。 一种光拾取装置，包括物镜驱动单元和支撑物镜驱动单元的底座，并且其中物镜驱动单元包括包括物镜和多个驱动线圈的移动结构; 包括对应于多个驱动线圈的磁体的静态结构，支撑磁体的磁轭和具有包括接地布线层的多个布线层的电线架; 多个悬挂线，其将所述多个驱动线圈连接到所述多个布线层; 连接到轭架并固定到线夹的支撑部分; 从所述支撑部延伸并与所述接地布线层相邻配置的突起; 并且导电接合材料将接地布线层与突起连接。
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6.发明授权公开(公告)号：US08976637B2
公开(公告)日：2015-03-10
申请号：US14256632
申请日：2014-04-18
发明人： Masaki Yamamoto , Hirohisa Yamada , Yasuhiro Harada , Go Mori , Hideharu Tajima , Shigemi Maeda , Yoshiteru Murakami
IPC分类号： G11B20/10 , G11B7/00 , G11B7/005 , G11B7/126 , G11B7/24 , G11B7/24038 , G11B19/12 , G11B7/12 , G11B7/1263 , G11B7/0037 , G11B7/085
CPC分类号： G11B7/00 , G11B7/0037 , G11B7/005 , G11B7/08511 , G11B7/12 , G11B7/126 , G11B7/1263 , G11B7/24 , G11B7/24038 , G11B19/125 , G11B19/128 , G11B2007/0013
摘要： In an optical information storage medium reproduction apparatus reproducing an optical information storage medium including a plurality of information recording layers each including a recording mark having a length shorter than an optical system resolution limit, reproduction laser power reading an information recording layer closest to a reproduction-laser-incident surface of the optical information storage medium is set to be lower than reproduction laser power reading an information recording layer farthest from the reproduction-laser-incident surface but not lower than minimum reproduction laser power that satisfies a reproduction signal characteristic that the optical information storage medium reproduction apparatus requires.
摘要翻译： 在再现包括长度短于光学系统分辨率极限的记录标记的多个信息记录层的光学信息存储介质的光学信息存储介质再现设备中，再现激光功率， 光信息存储介质的激光入射面被设定为低于再现激光功率读取距再生激光入射面最远的信息记录层，但不低于满足再生信号特性的最小再现激光功率 信息存储介质再生装置要求。
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7.发明授权Disk drive calibrating laser power for heat assisted magnetic recording based on quality metric and track width 有权磁盘驱动器基于质量度量和轨道宽度校准用于热辅助磁记录的激光功率公开(公告)号：US08929186B1
公开(公告)日：2015-01-06
申请号：US13763972
申请日：2013-02-11
发明人： Abhimanyu Sharma , Poornima Nookala , Zhaobin Zhu
CPC分类号： G11B5/012 , G11B2005/0021
摘要： A disk drive is disclosed comprising a head actuated over a disk, wherein the head comprises a laser operable to heat the disk while writing data to the disk. A laser power of the laser is initialized, and a test pattern is written to the disk. The test pattern is read from the disk to generate a read signal, and a quality metric and a track width of the test pattern is measured based on the read signal. The laser power is adjusted and the process is repeated until at least one of the quality metric substantially matches a target value and the track width substantially matches a track width threshold.
摘要翻译： 公开了一种磁盘驱动器，其包括在磁盘上致动的磁头，其中磁头包括可操作以在将数据写入磁盘的同时加热磁盘的激光器。 初始化激光器的激光功率，并将测试图案写入磁盘。 从盘读取测试图案以产生读取信号，并且基于读取信号测量测试图案的质量度量和轨迹宽度。 调整激光功率并重复该过程，直到质量度量中的至少一个基本上与目标值匹配并且轨道宽度基本上与轨道宽度阈值相匹配。
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8.发明授权公开(公告)号：US08824252B2
公开(公告)日：2014-09-02
申请号：US11864915
申请日：2007-09-29
申请人： Jia-Hau Lin , Chih-Chung Wu , Hung-Yen Chen , Hao-Hui Yin
发明人： Jia-Hau Lin , Chih-Chung Wu , Hung-Yen Chen , Hao-Hui Yin
CPC分类号： G11B7/0908 , G11B7/121
摘要： The invention discloses a signal clamping device capable of clamping a signal with a clamp level that is set according to a frequency characteristic of the signal and a method thereof and a related optical storage system. The signal clamping device includes an equalizing unit, a determining unit, and a clamping unit. The equalizing unit is utilized for equalizing the signal and generating an equalized signal. The determining unit is utilized for generating an indication signal according to the equalized signal. The clamping unit is utilized for determining a clamp level according to the indication signal and clamping the signal with the clamp level.
摘要翻译： 本发明公开了一种信号钳位装置，其能够钳位具有根据信号的频率特性设置的钳位电平的信号及其方法和相关的光学存储系统。 信号夹紧装置包括均衡单元，确定单元和夹紧单元。 均衡单元用于均衡信号并产生均衡的信号。 确定单元用于根据均衡信号产生指示信号。 钳位单元用于根据指示信号确定钳位电平，并用钳位电平钳位信号。
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公开(公告)号：US08767199B2
公开(公告)日：2014-07-01
申请号：US12905472
申请日：2010-10-15
申请人： David M. Dozor , Yullin Kim , Kris Tumidajski , Gary Fancher , Ken Salvestrini , Douglas Holt , Ron DeWitt, Jr.
发明人： David M. Dozor , Yullin Kim , Kris Tumidajski , Gary Fancher , Ken Salvestrini , Douglas Holt , Ron DeWitt, Jr.
CPC分类号： G02B21/33
摘要： An inspection system including a lens. In one instance, the lens is a solid immersion lens. The inspection system includes a component or components for providing a self aligning solid immersion lens arrangement in order to allow at most a small distance between the solid immersion lens and a device under test and components or components for constraining a force exerted on the device under test. The inspection system may include a “purge” port, or a thermal isolation configuration or an anti-contamination component. The inspection system may include software and hardware to prevent crashing of the lens. The inspection system may also include a method for ensuring that various objective lenses can be replaced while maintaining the intended spacing between lenses.
摘要翻译： 包括透镜的检查系统。 在一种情况下，透镜是固体浸没透镜。 检查系统包括用于提供自对准固体浸没透镜布置的部件或部件，以便允许固体浸没透镜和被测器件之间的至少一定距离，以及用于约束施加在被测器件上的力的部件或部件 。 检查系统可以包括“吹扫”端口，或热隔离构造或抗污染部件。 检查系统可以包括软件和硬件，以防止镜头的撞击。 检查系统还可以包括一种用于确保在保持透镜之间的预定间隔的同时更换各种物镜的方法。
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公开(公告)号：US08750083B2
公开(公告)日：2014-06-10
申请号：US13095624
申请日：2011-04-27
申请人： Minoru Sato , Kiyotaka Eizumi , Shuichi Ichiura
发明人： Minoru Sato , Kiyotaka Eizumi , Shuichi Ichiura
IPC分类号： G11B7/1353 , G11B7/12
CPC分类号： G11B7/1353 , G11B7/123 , G11B7/1275 , G11B2007/0006
摘要： An optical pickup apparatus includes at least: a light emitting element capable of emitting at least first wavelength light and second wavelength light; and a diffraction grating configured to split the first wavelength light into at least a first main beam and a first sub-beam and to split the second wavelength light into at least a second main beam and a second sub-beam, a following expression (1) being satisfied: 1.05
摘要翻译： 光拾取装置至少包括：能够发射至少第一波长光和第二波长光的发光元件; 以及衍射光栅，其被配置为将所述第一波长光分成至少第一主光束和第一子光束，并将所述第二波长光分裂成至少第二主光束和第二子光束，所述表达式（1 ）满足：1.05
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