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1. 发明授权

US10978107B2 Information processing apparatus, optical storage apparatus, and method for processing information 有权
公开(公告)号：US10978107B2
公开(公告)日：2021-04-13
申请号：US16304873
申请日：2017-05-01
申请人： SONY CORPORATION
发明人： Nobuyoshi Kobayashi , Junya Shiraishi
IPC分类号： G11B7/00 , G11B20/10 , G11B7/005 , G11B7/13
摘要： An apparatus comprises a photodetector (PD) that irradiates a disk with laser light and outputs a signal based on a reflected light from the disk, a front monitor that outputs a reference signal based on an emitted light of a laser diode, and a data detection processing unit to which an output signal of the PD is input to generate a reproduction signal. The data detection processing unit includes a reproduction signal adaptive equalizer that outputs an equalization signal by adaptive equalization processing based on the PD output signal, and a laser noise adaptive equalizer that outputs the equalization signal by the adaptive equalization processing based on a laser noise signal, and generates the reproduction signal in which the laser noise is reduced on the basis of an arithmetic operation result of the output of the reproduction signal adaptive equalizer and the output of the laser noise adaptive equalizer.

2. 发明授权

US10747503B2 Random number generation using heat assisted magnetic recording 有权
公开(公告)号：US10747503B2
公开(公告)日：2020-08-18
申请号：US16589660
申请日：2019-10-01
申请人： Seagate Technology LLC
发明人： Li Hong Zhang , WenXiang Xie , Xiong Liu
IPC分类号： G06F7/58 , G11B7/13
摘要： A method includes detecting noise in a laser output of a heat assisted magnetic recording device. The noise is converted into an electrical signal including a numerical value. A least significant digit of the numerical value is selected. The least significant digit is concatenated with another least significant digit from another detecting of another noise in another laser output to form a number.

3. 发明申请

US20190235840A1 RANDOM NUMBER GENERATION USING HEAT ASSISTED MAGNETIC RECORDING 审中-公开
公开(公告)号：US20190235840A1
公开(公告)日：2019-08-01
申请号：US15884952
申请日：2018-01-31
申请人： Seagate Technology LLC
发明人： Li Hong ZHANG , WenXiang XIE , Xiong LIU
IPC分类号： G06F7/58 , G11B7/13
摘要： A method includes detecting noise in a laser output of a heat assisted magnetic recording device. The noise is converted into an electrical signal including a numerical value. A least significant digit of the numerical value is selected. The least significant digit is concatenated with another least significant digit from another detecting of another noise in another laser output to form a number.

4. 发明授权

US10192581B2 Reproducing device 有权
公开(公告)号：US10192581B2
公开(公告)日：2019-01-29
申请号：US15956904
申请日：2018-04-19
申请人： Sharp Kabushiki Kaisha , Memory-Tech Holdings Inc.
发明人： Hideharu Tajima , Masaki Yamamoto , Hirohisa Yamada , Takayuki Naka , Masahito Konishi
IPC分类号： G11B7/00 , G11B20/10 , G11B7/1374 , G11B7/13 , G11B7/1392 , G11B7/005 , G11B7/013
摘要： A reproducing device (100) includes (i) an optical pickup (6) for irradiating, with reproduction light, an optical disk (1) which is a super-resolution medium, (ii) an RF signal processing circuit (9) for converting, into a reproduction signal, light which reflected off optical disk (1), (iii) an i-MLSE detecting section (141) for evaluating quality of the reproduction signal, and (iv) a spherical aberration correcting section (142) for correcting a spherical aberration by using a result of evaluation of the quality of the reproduction signal.

5. 发明申请

US20170236543A1 OPTICAL INFORMATION RECORDING/REPRODUCING DEVICE AND HOLOGRAPHIC RECORDING/REPRODUCING METHOD 审中-公开
公开(公告)号：US20170236543A1
公开(公告)日：2017-08-17
申请号：US15401489
申请日：2017-01-09
申请人： Hitachi-LG Data Storage, Inc.
发明人： Kazuyoshi YAMAZAKI
IPC分类号： G11B7/007 , G11B7/1395 , G11B7/08 , G11B7/13 , G03H1/26 , G11B7/0065
CPC分类号： G11B7/00772 , G03H1/265 , G11B7/0065 , G11B7/083 , G11B7/08564 , G11B7/13 , G11B7/1395
摘要： An optical information recording/reproducing device which reproduces information from an optical information storage medium in which an interference pattern between a signal beam and a reference beam is recorded as page data includes a controller, a laser light source, a split part, an angle variable part, an optical part, a first light detector, and a second light detector, and the controller controls the angle variable part based on a control signal generated from a first signal detected by the first light detector and a second signal detected by the second light detector.

6. 发明申请

US20140362676A1 OPTICAL INFORMATION PROCESSING APPARATUS AND METHOD FOR CONTROLLING SAME 审中-公开
标题翻译：光信息处理装置及其控制方法
公开(公告)号：US20140362676A1
公开(公告)日：2014-12-11
申请号：US14366171
申请日：2012-12-27
申请人： Electronics and Telecommunications Research Institute
发明人： Bong Ho Lee , Jae Han Kim , Gwang Soon Lee , Tae One Kim , Won Sik Cheong , Nam Ho Hur
IPC分类号： G11B7/095 , G02B27/28 , G11B7/13 , G01B11/14
CPC分类号： G11B7/0956 , G02B27/283 , G11B7/083 , G11B7/13
摘要： The present invention relates to an optical information processing apparatus and to a method for controlling same. Provided is an optical information processing apparatus and a method for controlling same, the optical information processing apparatus comprising: a light source for irradiating light; an optical modulator for modulating the light irradiated from the light source; an optical system for collecting the light modulated by the optical modulator and enabling the modulated light to be incident to an optical medium; a stage on which the optical medium is placed; an optical detection unit for detecting the pattern of the light reflected from the optical medium; and a control unit for analyzing the pattern of the light detected by the optical detection unit so as to control the optical system and the location of the stage.
摘要翻译：光信息处理装置及其控制方法技术领域本发明涉及光信息处理装置及其控制方法。提供一种光信息处理装置及其控制方法，该光信息处理装置包括：用于照射光的光源; 光调制器，用于调制从光源照射的光; 光学系统，用于收集由光学调制器调制的光，并使得调制的光入射到光学介质; 放置光学介质的阶段; 光学检测单元，用于检测从光学介质反射的光的图案; 以及控制单元，用于分析由光学检测单元检测到的光的图案，以便控制光学系统和平台的位置。

7. 发明授权

US08891342B2 Optical head device and optical disc device 有权
标题翻译：光头设备和光盘设备
公开(公告)号：US08891342B2
公开(公告)日：2014-11-18
申请号：US14362865
申请日：2012-10-11
申请人： Hironori Nakahara , Toshiya Matozaki , Nobuo Takeshita
发明人： Hironori Nakahara , Toshiya Matozaki , Nobuo Takeshita
IPC分类号： G11B7/00 , G11B7/13 , G11B7/09 , G11B7/1353
CPC分类号： G11B7/1353 , G11B7/0901 , G11B2007/0013
摘要： An optical component, a hologram, and a photodetector are configured in an optical head device of an optical disc device such that a +1-order beam or a −1-order beam of diffracted light generated from light reflected from an information track in the intended information recording layer strikes the interior of the light-receiving surfaces of the tracking error detection light-receiving sections, a +1-order beam or a −1-order beam of diffracted light generated from light reflected from an information track in an information recording layer one layer deeper than the intended information recording layer strikes outside the light-receiving sections, and a +1-order beam or a −1-order beam of diffracted light that is generated from light reflected from an information track in an information recording layer one layer shallower than the intended information recording layer strikes outside the light-receiving sections.
摘要翻译：光学元件，全息图和光电检测器被配置在光盘装置的光学头装置中，使得从在光盘装置中的信息轨道反射的光产生的+ 1级光束或-1级衍射光束目标信息记录层撞击跟踪误差检测光接收部分的光接收表面的内部，从信息中的信息轨迹反射的光产生的+ 1级光束或-1级衍射光束比预期的信息记录层更深一层的记录层撞击光接收部分外部，以及从信息记录中从信息轨道反射的光产生的+1级光束或-1级衍射光束比预期的信息记录层浅的层1撞击光接收部分。

8. 发明申请

US20130010584A1 OPTICAL HEAD AND OPTICAL INFORMATION DEVICE 有权
标题翻译：光头和光信息设备
公开(公告)号：US20130010584A1
公开(公告)日：2013-01-10
申请号：US13635503
申请日：2011-03-18
申请人： Hideki Nakata , Hidenori Wada , Masahito Nakao
发明人： Hideki Nakata , Hidenori Wada , Masahito Nakao
IPC分类号： G11B7/135 , G11B7/1395 , G11B7/13 , G11B7/1374 , G11B7/1378
CPC分类号： G11B7/1381 , G11B7/0909 , G11B7/1275 , G11B7/131 , G11B7/1384 , G11B2007/0013
摘要： There are provided an optical head and an optical information device capable of downsizing the optical head, and capable of improving the qualities of a focus error signal, a tracking error signal, and a reproduction signal. A light detector (120) includes a light-receiving unit (121) for receiving a reflected light beam from an optical disc, and a package (125) for covering the light-receiving unit (121). The package (125) has a plurality of light guides (124) formed on a light-receiving surface on the light beam incident side of the light-receiving unit (121), and for guiding a reflected light beam to the light-receiving unit (121), and a light shield (114) for shielding a region except for a plurality of the light guides (124) from light.
摘要翻译：提供了一种能够使光学头小型化并且能够提高聚焦误差信号，跟踪误差信号和再现信号的质量的光学头和光学信息装置。光检测器（120）包括用于接收来自光盘的反射光束的光接收单元（121）和用于覆盖光接收单元（121）的封装（125）。该封装体（125）具有形成在受光单元（121）的光束入射侧的受光面上的多个导光体（124），用于将反射光束导向光接收部（121），以及用于屏蔽除了多个光导（124）之外的区域的光的遮光罩（114）。

9. 发明申请

US20120044795A1 Optical Disc Drive 有权
标题翻译：光盘驱动器
公开(公告)号：US20120044795A1
公开(公告)日：2012-02-23
申请号：US13153491
申请日：2011-06-06
申请人： Akira KITAYAMA , Toshimitsu Kaku , Hajime Nishimura
发明人： Akira KITAYAMA , Toshimitsu Kaku , Hajime Nishimura
IPC分类号： G11B7/004 , G11B7/13
CPC分类号： G11B7/005 , G11B7/13
摘要： Bandwidth is secured for a read signal transmission line by matching the characteristic impedance of the read signal transmission line with the output impedance of a photodetector of an optical pick up, while at the same time securing bandwidth for the photodetector. In an optical disc drive according to an embodiment of the present invention, each line forming a differential transmission line is divided into a plurality of lines of the same quantity, the quantity being two or more, at or near a connection point between a flexible line and the optical pick up.
摘要翻译：通过将读信号传输线的特性阻抗与光拾取器的光电检测器的输出阻抗匹配，同时确保光电检测器的带宽，从而确保读信号传输线的带宽。在根据本发明的实施例的光盘驱动器中，形成差分传输线的每条线在柔性线之间的连接点处或其附近被分成多个相同数量的线，其数量为两个或更多个和光学拾取。

10. 发明授权

US07821901B2 Optical pickup device for supporting a plurality of types of optical disks 有权
标题翻译：用于支撑多种类型的光盘的光拾取装置
公开(公告)号：US07821901B2
公开(公告)日：2010-10-26
申请号：US10872406
申请日：2004-06-22
申请人： Tsutomu Matsui
发明人： Tsutomu Matsui
IPC分类号： G11B7/13
CPC分类号： G11B7/1275 , G11B7/131 , G11B2007/0006
摘要： The optical pickup device includes a semiconductor laser for emitting laser light of 650 nm and 780 nm in wavelengths, a semiconductor laser for emitting laser light of 400 nm in wavelength, and an optical sensor which is provided in sequence with a first light receiving surface divided into four areas in a matrix manner, a second light receiving surface divided into four areas in a matrix manner, and a third light receiving surface divided at least into two areas aligned inline. Reflected light of three beams of 400 nm in wavelength and reflected light of three beams in 780 nm in wavelength are received on the first to third light receiving surfaces respectively, and a main beam of reflected light of 650 nm in wavelength is received on the first light receiving surface on one side out of the three light receiving surfaces.
摘要翻译：光拾取装置包括用于发射波长为650nm和780nm的激光的半导体激光器，用于发射波长为400nm的激光的半导体激光器以及分别设置有第一光接收表面的光学传感器以矩阵方式分成四个区域，以矩阵方式分为四个区域的第二光接收表面和至少分为两个直线对齐的第三光接收表面。在波长为780nm的三个波长的三束光束和三波长的反射光的反射光分别在第一至第三光接收表面上接收，并且在第一至第三光接收表面上接收主波长为650nm的主波束在一个侧面上的三个光接收表面的光接收表面。

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