公开(公告)号：US20140211600A1

公开(公告)日：2014-07-31

申请号：US14155536

申请日：2014-01-15

申请人： Hitachi-LG Data Storage, Inc.

发明人： Tomomi OKAMOTO ,  Shinji FUJITA ,  Takakiyo YASUKAWA ,  Masayuki KOBAYASHI

IPC分类号： G11B20/18

CPC分类号： G11B20/18 ,  G11B20/1879

摘要： In a recording/reproducing device for recording and reproducing an optical disk, when performing verify processing of inspecting a quality of recorded data and compare processing of inspecting whether the recorded data can be read without errors, a time is taken because the same area needs to be reproduced two times. The verify processing and the compare processing are performed at one time reproduction. To perform the verify processing and the compare processing simultaneously, a recording quality storage part is provided in the recording/reproducing device, and reproduced data is transmitted to a host controller while storing quality information at the time of reproduction by an instruction of the host controller. The host controller performs the compare processing by comparing transmitted data and data at the time of recording and inspects the recording quality by acquiring the quality information of a reproduced area from the recording/reproducing device at intervals set in advance.

摘要翻译： 在用于记录和再现光盘的记录/再现装置中，当执行检查记录数据的质量的验证处理并比较检查所记录的数据是否可以无错误地读取的处理时，由于相同的区域需要 被复制两次。 在一次再现时执行验证处理和比较处理。 为了同时执行验证处理和比较处理，在记录/再现装置中提供记录质量存储部分，并且通过主机控制器的指令在再现时存储质量信息的同时将再现数据发送到主机控制器 。 主机控制器通过比较发送的数据和记录时的数据来执行比较处理，并且以预先设定的间隔从记录/再现装置获取再现区域的质量信息来检查记录质量。

公开(公告)号：US08792315B2

公开(公告)日：2014-07-29

申请号：US13656828

申请日：2012-10-22

申请人： Hitachi Consumer Electronics Co., Ltd. ,  Hitachi-LG Data Storage, Inc.

发明人： Atsushi Neo

IPC分类号： G11B20/18

CPC分类号： G11B20/10305 ,  G11B20/10388 ,  G11B20/10398 ,  G11B20/10472 ,  G11B20/18 ,  G11B27/002 ,  G11B27/105 ,  G11B27/36 ,  G11B2220/41

摘要： An information recording/reproducing device capable of recording or reproducing information to or from a plurality of information recording media, includes a plurality of information recording/reproduction drives which can record or reproduce the information recording media and during recording or reproduction, can measure information recording medium quality evaluation item values representing values indicative of qualities of the information recording media; and an information recording medium monitor which can calculate tendency to quality degradation of the information recording medium from information recording medium quality evaluation item values preserved by an information recording medium monitoring database which can preserve the measured information recording medium quality evaluation item values. The information recording medium monitor is capable of calculating from a tendency to quality degradation of an arbitrary information recording medium the quality of another information recording medium.

摘要翻译： 一种能够向多个信息记录介质记录或再现信息的信息记录/再现装置，包括可以记录或再现信息记录介质的多个信息记录/再现驱动器，并且在记录或再现期间可以测量信息记录 表示表示信息记录介质的质量的值的中等质量评价项目值; 以及信息记录介质监视器，其可以从可以保存测量的信息记录介质质量评估项目值的信息记录介质监视数据库保存的信息记录介质质量评估项目值中计算信息记录介质的质量劣化趋势。 信息记录介质监视器能够根据任意信息记录介质的质量劣化的趋势来计算另一信息记录介质的质量。

公开(公告)号：US08787136B2

公开(公告)日：2014-07-22

申请号：US13875687

申请日：2013-05-02

申请人： Hitachi-LG Data Storage, Inc. ,  Hitachi Consumer Electronics Co., Ltd.

发明人： Kenichi Shimada

IPC分类号： G11B7/00

CPC分类号： G11B7/0065 ,  G11B7/08564 ,  G11B7/13

摘要： A holographic memory apparatus includes an optical detector which receives reflected light of reference beam from the surface of a hologram recording medium. An incident angle of the reference beam is estimated on the basis of information on a focused position on the optical detector. When the incident angle is different from a target incident angle, the incident angle of the reference beam is adjusted according to a difference between the incident angle and the target incident angle.

摘要翻译： 全息存储装置包括从全息图记录介质的表面接收参考光束的反射光的光学检测器。 基于关于光学检测器上的聚焦位置的信息来估计参考光束的入射角。 当入射角与目标入射角不同时，根据入射角与目标入射角之差来调整参考光束的入射角。

公开(公告)号：US08760981B2

公开(公告)日：2014-06-24

申请号：US13151353

申请日：2011-06-02

申请人： Yasuo Mutsuro ,  Yutaka Nagai ,  Koichiro Nishimura ,  Masakazu Ikeda ,  Osamu Kawamae

发明人： Yasuo Mutsuro ,  Yutaka Nagai ,  Koichiro Nishimura ,  Masakazu Ikeda ,  Osamu Kawamae

IPC分类号： G11B7/00 ,  G11B5/86 ,  G11B3/64 ,  G11B7/28

CPC分类号： G11B20/1217 ,  G11B20/00115 ,  G11B20/10527 ,  G11B20/1883 ,  G11B27/002 ,  G11B27/11 ,  G11B2020/10796 ,  G11B2020/1826 ,  G11B2220/20 ,  G11B2220/2541 ,  G11B2220/41

摘要： There are provided an optical disc device and its recording/reproducing method for managing the management information about plural optical discs efficiently. In the present invention, the management information about the plural optical discs is stored in a memory. Moreover, the management information about part or all of the optical discs stored in the memory is recorded in the optical disc.

摘要翻译： 提供了一种用于有效管理关于多个光盘的管理信息的光盘装置及其记录/再现方法。 在本发明中，关于多个光盘的管理信息被存储在存储器中。 此外，关于存储在存储器中的部分或全部光盘的管理信息被记录在光盘中。

公开(公告)号：US08752077B2

公开(公告)日：2014-06-10

申请号：US13523369

申请日：2012-06-14

申请人： Seiji Hamaie ,  Koji Matsumoto ,  Hideyuki Nagamine

发明人： Seiji Hamaie ,  Koji Matsumoto ,  Hideyuki Nagamine

IPC分类号： G11B17/03

CPC分类号： G11B33/027 ,  G11B17/0405

摘要： An example of an optical disc apparatus includes a top case and a bottom case. The top case includes a tab extending downward from one end of the top case. The tab includes a protrusion protruding inward. The bottom case includes a lower-side folded portion formed by folding inward an upper end of one side surface of the bottom case. The lower-side folded portion includes a cantilever spring. The cantilever spring includes a spring portion extending in a vertical direction and a curved portion formed by folding inward an upper part of the spring portion. The protrusion comes into contact with the curved portion when the top case is being affixed to the bottom case and is in contact with the spring portion under a state where the top case is affixed to the bottom case.

摘要翻译： 光盘装置的一个例子包括顶壳和底壳。 顶部壳体包括从顶壳的一端向下延伸的突出部。 突片包括向内突出的突起。 底壳包括通过向下折叠底壳的一个侧表面的上端而形成的下侧折叠部。 下侧折叠部分包括悬臂弹簧。 悬臂弹簧包括沿垂直方向延伸的弹簧部分和通过向内折叠弹簧部分的上部而形成的弯曲部分。 当顶壳固定到底壳时，突起与弯曲部接触，并且在顶壳附接到底壳的状态下与突起部接触。

公开(公告)号：US08665681B2

公开(公告)日：2014-03-04

申请号：US12285821

申请日：2008-10-15

申请人： Akira Kitayama ,  Tatemi Ido ,  Nobuaki Sato ,  Hiroharu Sakai ,  Kouichi Ihara

发明人： Akira Kitayama ,  Tatemi Ido ,  Nobuaki Sato ,  Hiroharu Sakai ,  Kouichi Ihara

IPC分类号： G11B7/00

CPC分类号： G11B7/00456

摘要： There is provided an optical disc drive comprises an optical pick-up including a laser diode (LD) and a laser diode driver (LDD) for driving the laser diode, a digital signal processor (DSP) including a write strategy circuit and low voltage differential signaling (LVDS) drivers for transmitting a produced write strategy signal, a circuit board having the DSP mounted thereon and including a line for transmitting the write strategy signal, a transmission line connecting the circuit board and the LDD and transmitting a write strategy signal, and differential resistors connected between differential lines of outputs of the LVDS drivers. Especially, a resistor having a resistance value in a range of 80 to 500Ω is inserted between the differential lines of outputs of the LVDS driver inside the DSP.

摘要翻译： 提供了一种光盘驱动器，其包括：光拾取器，包括用于驱动激光二极管的激光二极管（LD）和激光二极管驱动器（LDD）;数字信号处理器（DSP），包括写策略电路和低电压差 用于发送产生的写入策略信号的信令（LVDS）驱动器，安装有DSP的电路板，并且包括用于发送写入策略信号的线路，连接电路板和LDD的传输线，并发送写入策略信号，以及 差分电阻连接在LVDS驱动器的输出差分线路之间。 特别地，在DSP内部的LVDS驱动器的输出的差分线之间插入电阻值为80〜500Ω的电阻。

公开(公告)号：US20130318545A1

公开(公告)日：2013-11-28

申请号：US13900595

申请日：2013-05-23

申请人： Hitachi-LG Data Storage, Inc.

发明人： Hiroki YABU

IPC分类号： G11B33/04

CPC分类号： G11B33/0433 ,  G11B17/225 ,  G11B33/127

摘要： It is provided an ODD archive apparatus to which a plurality of optical disk media are mounted, the ODD archive apparatus comprising: a cartridge unit accommodating the plurality of optical disk media therein; an optical disk drive for reading/writing data from/to the plurality of optical disk media; a rail assembly for carrying the plurality of optical disk media; and a chassis accommodating the cartridge unit, the optical disk drive, and the rail assembly therein. The rail assembly includes a carrying unit for holding and carrying one of the plurality of optical disk media; a rail for guiding movement of the carrying unit; and a motor for moving the carrying unit, the rail assembly having both end portions fixed to the chassis.

摘要翻译： 提供了一种安装有多个光盘介质的ODD归档装置，该ODD存档装置包括：容纳其中的多个光盘介质的盒单元; 用于从多个光盘介质读取/写入数据的光盘驱动器; 用于承载多个光盘介质的导轨组件; 以及容纳盒单元，光盘驱动器和轨道组件的底盘。 轨道组件包括用于保持和携带多个光盘介质之一的承载单元; 用于引导运送单元的运动的轨道; 以及用于移动所述承载单元的马达，所述导轨组件具有固定到所述底盘的两个端部。

公开(公告)号：US20130276003A1

公开(公告)日：2013-10-17

申请号：US13859823

申请日：2013-04-10

申请人： HITACHI-LG DATA STORAGE, INC.

发明人： Koji MATSUMOTO ,  Hideyuki NAGAMINE ,  Seiji HAMAIE ,  Nozomu HARADA

IPC分类号： G11B17/056

CPC分类号： G11B17/056

摘要： A disadvantage is reduced in which a front panel of an optical disc unit tilts by a clearance (rattle) between the components and contacts with a body of a PC incorporating the unit to cause malfunction of insertion and ejection of discs. A disc tray is provided to move relative to rail guides attached to a bottom case of the optical disc unit via rails. The disc tray and rail guides have projection portions to contact with each other with stress. As a result, the clearance is reduced and the disadvantage due to the malfunction is reduced. The contact of the projection portions is close to point contact. The number of the contact positions is three or four. Support portions are provided to the rail guides to generate the stress.

摘要翻译： 减少了光盘单元的前面板由组件和与包含该单元的PC主体接触之间的间隙（拨浪）倾斜导致盘的插入和弹出故障的缺点。 光盘托盘被设置成相对于通过轨道连接到光盘单元的底壳的轨道导轨移动。 光盘托盘和导轨具有突出部分，以相互压力接触。 结果，间隙减小，并且由于故障引起的缺点减少。 突出部分的接触接近点接触。 接触位置的数量是三个或四个。 支撑部分设置在导轨上以产生应力。

公开(公告)号：US20130275394A1

公开(公告)日：2013-10-17

申请号：US13853094

申请日：2013-03-29

申请人： HITACHI-LG DATA STORAGE, INC. ,  HITACHI CONSUMER ELECTRONICS CO., LTD.

发明人： Yasuo WATANABE ,  Kazuyoshi SERIZAWA

IPC分类号： G06F17/30

CPC分类号： G06F17/30303 ,  G06F3/0641 ,  G06F17/30159

摘要： Deduplication is executed in a storage device having low random access performance, such as an optical disk library. When an optical disk that is not inserted into an optical disk drive needs to be accessed in order to execute binary compare, data to be binary compared is stored in a temporary memory area in order to postpone the binary compare, and on the timing when the optical disk is inserted, the postponed binary compare is executed. Before second deduplication, which is deduplication between data to be stored in the storage device and the data in the optical disk library, is executed, first deduplication, which is deduplication between the data to be stored in the storage device and the data in the temporary memory area, is executed.

摘要翻译： 重复数据删除在具有低随机存取性能的存储设备中执行，例如光盘库。 需要访问未插入到光盘驱动器中的光盘以执行二进制比较时，要将二进制比较的数据存储在临时存储区域中以推迟二进制比较，并且在 插入光盘，执行推迟的二进制比较。 在第二次重复数据删除之前，将要存储在存储设备中的数据与光盘库中的数据之间进行重复数据删除，首先进行重复数据删除，这是存储在存储设备中的数据与临时数据之间的重复数据删除 内存区域，执行。

公开(公告)号：US08531925B2

公开(公告)日：2013-09-10

申请号：US13348706

申请日：2012-01-12

申请人： Shuichi Minamiguchi

发明人： Shuichi Minamiguchi

IPC分类号： G11B7/00

CPC分类号： G11B7/1263 ,  G11B7/09 ,  G11B2007/0013

摘要： Erroneous data erasure owing to radiation of laser beam with excessive power to the recording layer of the multilayered optical disc upon servo-off while reproducing data of the disc is prevented. When detecting the servo-off based on the amplitude of the tracking error signal or the focus error signal, the laser beam power is reduced to a predetermined minimum value, and the laser beam power value is set again based on the address of the recording medium, which has been obtained later for reproduction. The laser beam power value is changed by applying an offset to the drive current or changing the target value under APC.

摘要翻译： 防止由于在再现数据的同时在伺服关闭时对多层光盘的记录层具有过大功率的激光束的辐射造成的错误数据擦除。 当基于跟踪误差信号或聚焦误差信号的振幅检测到伺服关闭时，将激光束功率降低到预定的最小值，并且基于记录介质的地址再次设置激光束功率值 ，其后来被再现。 通过对驱动电流施加偏移或者改变APC下的目标值来改变激光束功率值。