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1. 发明授权

US12119033B1 Beam balancer for optical data writing 有权
公开(公告)号：US12119033B1
公开(公告)日：2024-10-15
申请号：US18472124
申请日：2023-09-21
申请人： Microsoft Technology Licensing, LLC
发明人： Esa Tapani Raikkonen , Nikolai Chekurov , Risto Heikki Mutikainen , Anton Viljami Autere
IPC分类号： G11B7/126 , G11B7/0037 , G11B7/1374
CPC分类号： G11B7/126 , G11B7/0037 , G11B7/1374
摘要： A method for balancing pulse energies across a series of write beams in an optical data writer comprises: (a) for each write beam of the series, applying an independently controllable phase delay to the write beam, thereby changing the polarization of the write beam; and (b) for each write beam with changed polarization in the series, directing a selected plane-polarized component of the write beam through a data modulator and onto an optical substrate. In this method the data modulator modulates each write beam of the series irrespective of the tolerance across the series of write beams.

2. 发明申请

US20230024379A1 SYSTEMS AND METHODS FOR INCREASING DATA RATE AND STORAGE DENSITY IN 3-DIMENSIONAL OPTICAL DATA STORAGE MEDIA 有权
公开(公告)号：US20230024379A1
公开(公告)日：2023-01-26
申请号：US17951464
申请日：2022-09-23
申请人： Folio Photonics Inc.
发明人： Kenneth D. Singer , Irina Shiyanovskaya , Asher Sussman , Thomas Milster , Young Sik Kim
IPC分类号： G11B11/105 , G11B7/0037
摘要： Systems and methods, e.g., optical apparatuses, for digital optical information storage systems that improve the speed, signal to noise, controllability, and data storage density for fluorescent and reflective multilayer optical data storage media. The systems and methods include an optical system for a reading beam of a data channel from a moving single or multi-layer or otherwise 3-dimensional optical information storage medium that comprises at least one optical element characterized by restricting the field of view (FOV) of the reading beam on an associated image plane to 0.3 to 2 Airy disk diameters in a first direction.

3. 发明授权

US10068604B2 Information recording device and data erasing method 有权
公开(公告)号：US10068604B2
公开(公告)日：2018-09-04
申请号：US15468164
申请日：2017-03-24
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： Harumitsu Miyashita , Naohiro Kimura , Kohei Nakata
IPC分类号： G11B7/0055 , G11B7/005 , G11B20/10 , G11B7/0045 , G11B7/0037 , G11B7/006
CPC分类号： G11B7/0055 , G11B7/0037 , G11B7/00458 , G11B7/005 , G11B7/006 , G11B20/10 , G11B20/1024 , G11B2020/10851 , G11B2020/10898
摘要： Upon receiving an erase command for data recorded in a write-once optical disc, an information recording device corrupts data in an information area (synchronization signal in Run-in, frame synchronization signal, address information and the like), in an erased area on the optical disc, in which information necessary for synchronization of reproducing data by overwriting the data in the information area with an erasing pattern. The erased area is specified by an erase starting position and a size of data to be erased. In this way, the information recording device erases the data in the erased area.

4. 发明授权

US09786312B2 Hologram reproducing apparatus and hologram reproducing method 有权
公开(公告)号：US09786312B2
公开(公告)日：2017-10-10
申请号：US15022935
申请日：2013-09-18
申请人： HITACHI CONSUMER ELECTRONICS CO., LTD.
发明人： Kazuyoshi Yamazaki , Tatsuro Ide
IPC分类号： G11B7/0065 , G11B7/005 , G11B7/08 , G11B7/1381 , G11B7/007 , G11B7/24 , G11B7/24044 , G11B7/09 , G11B7/0037 , G11B7/00 , G11B7/085 , G11B7/1365
CPC分类号： G11B7/0065 , G03H2222/31 , G11B7/0037 , G11B7/005 , G11B7/00772 , G11B7/083 , G11B7/08564 , G11B7/094 , G11B7/1365 , G11B7/1381 , G11B7/24 , G11B7/24044 , G11B2007/0009 , G11B2007/240025
摘要： The purpose of the present invention is to provide a hologram reproducing apparatus and a hologram reproducing method, which are suitable for reproducing hologram. The purpose can be achieved by means of a hologram reproducing apparatus, which reproduces information signals by irradiating an optical information recording medium with reference light, and a hologram reproducing method for the hologram reproducing apparatus. The hologram reproducing apparatus is characterized in being provided with: a polarization conversion section, which converts polarization of diffracted light that is generated when the optical information recording medium is irradiated with the reference light; a light receiving section, which receives the diffracted light having the polarization thereof converted by means of the polarization conversion section; and a servo signal generating circuit section, which generates signals for moving the optical information recording medium or the polarization conversion section using the diffracted light received by means of the light receiving section.

5. 发明授权

US09607645B2 Magnetic recording device 有权
公开(公告)号：US09607645B2
公开(公告)日：2017-03-28
申请号：US14642251
申请日：2015-03-09
申请人： Kabushiki Kaisha Toshiba
发明人： Hideaki Fukuzawa , Hiromi Yuasa
IPC分类号： G11B5/012 , G11B5/127 , G11B7/0037 , G11B5/66 , G11B5/673 , G11B5/02 , G11B5/39 , B82Y10/00 , G11B5/31 , G11B5/74 , G11B5/82 , G11B5/00
CPC分类号： G11B5/66 , B82Y10/00 , G11B5/02 , G11B5/314 , G11B5/3983 , G11B5/743 , G11B5/746 , G11B5/82 , G11B2005/0002 , G11B2005/0024
摘要： A magnetic recording device includes: a magnetic recording medium containing a plurality of recording layers; a magnetic recording head for conducting magnetic writing of information in the magnetic recording medium; and a magnetic reproducing head for conducting magnetic reading out of the information from the magnetic recording medium; wherein the magnetic recording head includes a high frequency oscillator for magnetically assisting the magnetic writing of the information so as to change a magnetization of at least one of the plurality of recording layers of the magnetic recording medium, thereby recording a plurality of information different from one another in the magnetic recording medium commensurate with a total amount of magnetization of the plurality of recording layers.

6. 发明授权

US09418694B2 Optical recording method, optical recording medium, optical recording medium recording apparatus, optical recording apparatus, optical disk, and optical disk recording/reproducing apparatus 有权
标题翻译：光记录方法，光记录介质，光记录介质记录装置，光记录装置，光盘和光盘记录/再现装置
公开(公告)号：US09418694B2
公开(公告)日：2016-08-16
申请号：US14679045
申请日：2015-04-06
申请人： JVC KENWOOD CORPORATION
发明人： Hiroshi Tabata , Kazuo Yonehara , Yasuhiro Ueki
IPC分类号： G11B7/0045 , G11B7/1263 , G11B7/006 , G11B20/10 , G11B7/0037 , G11B7/243
CPC分类号： G11B7/1263 , G11B7/0037 , G11B7/00454 , G11B7/00456 , G11B7/0062 , G11B20/10222 , G11B2007/24314 , G11B2007/24316 , G11B2020/10898
摘要： A mark having a length nT (n being an integer equal to or greater than 3 and T being a clock period) is formed by modulating irradiation laser power with three values of recording power Pw, erase power Pe, and bias power Pb (Pw>Pe>Pb). Constant strength periods (At) of the recording power Pw are set as AtT, A1T, . . . , and AmT and constant strength periods (Bt) of the bias power Pb are set as BtT, B1T, . . . , BmT, and CT (C=−1 to 3). The application of laser is divided into pulses in order of AtT, BtT, A1T, B1T, . . . , AmT, BmT, and CT (m=(n−k)/2, k=3 (if n is an odd number), or k=4 (if n is an even number)). (Here, the constant strength period of the recording power Pw for n=3, n=4, n≧5 (odd number), and n≧6 (even number) is set as At3, At4, Atod, and Atev, the constant strength period of the bias power Pb for n=3, n=4, n≧5 (odd number), and n≧6 (even number) is set as Bt3, Bt4, Btod, and Btev, and then, At3+Bt3=Atod+Btod=Am+Bm=2T and At4+Bt4=Atev+Btev=3T).
摘要翻译：通过用三个记录功率Pw，擦除功率Pe和偏置功率Pb调制照射激光功率来形成长度为nT（n为等于或大于3的整数，T为时钟周期）的标记（Pw> Pe> Pb）。记录功率Pw的恒定强度周期（At）设定为AtT，A1T，...。。。，并且偏置功率Pb的AmT和恒定强度周期（Bt）被设置为BtT，B1T。。。，BmT和CT（C = -1〜3）。激光的应用按照AtT，BtT，A1T，B1T的顺序分为脉冲。。。，AmT，BmT和CT（m =（n-k）/ 2，k = 3（如果n是奇数）或k = 4（如果n是偶数））。（这里，将n = 3，n = 4，n≥5（奇数），n≥6（偶数）的记录功率Pw的恒定强度期间设定为At3，At4，Atod，Atev， n = 3，n = 4，n≥5（奇数）和n≥6（偶数）的偏置功率Pb的恒定强度期间被设定为Bt3，Bt4，Btod和Btev，然后，At3 + Bt3 = Atod + Btod = Am + Bm = 2T，At4 + Bt4 = Atev + Btev = 3T）。

7. 发明申请

US20140223454A1 METHOD AND APPARATUS FOR PREVENTING THE READING OF AN OPTICAL DISC 有权
标题翻译：防止光盘阅读的方法和装置
公开(公告)号：US20140223454A1
公开(公告)日：2014-08-07
申请号：US14172977
申请日：2014-02-05
申请人： TOSHIBA SAMSUNG STORAGE TECHNOLOGY KOREA CORPORATION
发明人： Sang Hoon HYUN
IPC分类号： G11B7/0037
CPC分类号： G11B7/0037 , G11B19/10
摘要： Provided is a method and an apparatus for setting a virtual disc status of an optical disc drive. While set to the virtual disc status, the optical disc drive does not detect if an optical disc is present in the optical disc drive in response to the optical disc drive being powered on. Accordingly, power may be consumed and noise may be reduced.
摘要翻译：提供了一种用于设置光盘驱动器的虚拟盘状态的方法和装置。当设置为虚拟光盘状态时，响应于光盘驱动器被接通，光盘驱动器不检测光盘驱动器中是否存在光盘。因此，可能消耗功率并且可能降低噪声。

8. 发明授权

US08369045B1 Secure data storage 失效
标题翻译：安全数据存储
公开(公告)号：US08369045B1
公开(公告)日：2013-02-05
申请号：US13537465
申请日：2012-06-29
申请人： Vladimir Gershman , Ronald Dean , Bernard McGarth
发明人： Vladimir Gershman , Ronald Dean , Bernard McGarth
IPC分类号： G11B7/0037 , G11B7/0055
CPC分类号： G11B5/0245 , G06F21/80
摘要： A hard disk drive includes a chassis which supports a “sealed” housing containing a data storage magnetic disk, and read/write heads and actuator. The housing also contains an erasure device which generates a magnetic or other field or emanation for erasing the disk, so that the erasing field or emanation need not penetrate the sealed housing to effectuate erasure. A backup power supply provides power to the erasing device so that erasure can occur even in the absence of external power. A bus- or network-actuated arrangement couples power to the erasure device so that many hard drives may be simultaneously erased.
摘要翻译：硬盘驱动器包括支持包含数据存储磁盘的密封壳体以及读/写头和致动器的底盘。壳体还包含消除装置，其产生用于擦除盘的磁场或其他场或发射，使得擦除场或发射不需要穿透密封的壳体以实现擦除。备用电源为擦除装置提供电源，使得即使在没有外部电源的情况下也可能发生擦除。总线或网络驱动装置将电力耦合到擦除装置，使得可以同时擦除许多硬盘驱动器。

9. 发明申请

US20120236695A1 OPTICAL DISK DEVICE AND DRIVING METHOD THEREOF 审中-公开
标题翻译：光盘设备及其驱动方法
公开(公告)号：US20120236695A1
公开(公告)日：2012-09-20
申请号：US13418388
申请日：2012-03-13
申请人： Tomomi OKAMOTO
发明人： Tomomi OKAMOTO
IPC分类号： G11B7/1392 , G11B7/0037
CPC分类号： G11B7/13925 , G11B7/1378
摘要： The optical disk device can stably control an aberration correction lens even when one end of a movable range of the aberration correction lens is set as a reference position. The optical disk device comprises an optical pickup unit including the aberration correction lens and a stepping motor for moving the aberration correction lens, wherein, when an optical disk is inserted into the optical disk device, the aberration correction lens is moved to the reference position within the movable range and near one end thereof, and wherein, when moving the aberration correction lens to the reference position, driving pulses are applied to the stepping motor to press the aberration correction lens against the one end of the movable range, and thereafter a predetermined number of pulses are applied to reversely rotate the stepping motor and to set a stop position where the aberration correction lens stops as the reference position.
摘要翻译：即使像差校正透镜的可移动范围的一端被设置为基准位置，光盘装置也可以稳定地控制像差校正透镜。该光盘装置包括一个包括像差校正透镜的光学拾取单元和用于移动像差校正透镜的步进电机，其中当将光盘插入光盘装置时，将像差校正透镜移动到可移动范围和其一端，并且其中，当将像差校正透镜移动到参考位置时，将驱动脉冲施加到步进电机，以将像差校正透镜按压在可移动范围的一端，然后预定的施加脉冲数以反向旋转步进电机并设置像差校正透镜停止的停止位置作为基准位置。

10. 发明申请

US20120087223A1 METHOD OF WRITING DATA TO A DISC, DISC DRIVE 失效
标题翻译：将数据写入盘，盘驱动的方法
公开(公告)号：US20120087223A1
公开(公告)日：2012-04-12
申请号：US13326578
申请日：2011-12-15
申请人： Marc Angeline Jozef Cas , Johannes Franciscus Petrus Claas , Stefan Geusens
发明人： Marc Angeline Jozef Cas , Johannes Franciscus Petrus Claas , Stefan Geusens
IPC分类号： G11B7/0037
CPC分类号： G11B7/00458
摘要： The invention relates to a method of writing data to a disc (OD). The method comprised: a) performing a plurality of writing actions in which a plurality of data portions are written to the disc, b) performing a plurality of verification actions in which written data portions are at least partly verified and at least part of the data portions are replaced if needed. The method further comprises a2) performing a decision action for each writing action in which a decision whether or not to perform the verification action for a specific written data portion is taken.
摘要翻译：本发明涉及将数据写入盘（OD）的方法。该方法包括：a）执行多个写入动作，其中多个数据部分被写入盘中，b）执行多个验证动作，其中写入的数据部分被至少部分地被验证，并且至少部分数据如果需要更换部分。该方法还包括：a）对每个写入动作进行判定动作，在该动作中，执行是否对特定的写入数据部分执行验证动作的判定。

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