Holographic data storage system using slm (spatial light modulator) having pdlc (polymer dispersion liquid crystal) optical element
    21.
    发明专利
    Holographic data storage system using slm (spatial light modulator) having pdlc (polymer dispersion liquid crystal) optical element 审中-公开
    使用具有PDLC(聚合物分散液晶)光学元件的SLM(空调光调制器)的全息数据存储系统

    公开(公告)号:JP2007025055A

    公开(公告)日:2007-02-01

    申请号:JP2005204510

    申请日:2005-07-13

    Inventor: EDWARDS JATHAN D

    Abstract: PROBLEM TO BE SOLVED: To provide a holographic data storage system using an SLM having a PDLC optical element. SOLUTION: The holographic data storage system includes a spatial light modulator device (SLM) that comprises optical elements in the form of polymer dispersion liquid crystal (PDLC) elements. The PDLC elements are individually controllable and can be made substantially transmissive or substantially diffusive. The "on" or "off" state of the PDLC element is defined whether the given PDLC element is transparent or diffusive. Additional states may also be defined for the PDLC element, e.g., based on a level of diffusiveness of the PDLC element. Also, a mirror layer may be added adjacent to the PDLC element to demarcate a reflective mode SLM. In any case, the SLM is used to encode bit maps into a holographic object beam. COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种使用具有PDLC光学元件的SLM的全息数据存储系统。 解决方案:全息数据存储系统包括空间光调制器(SLM),其包括聚合物分散液晶(PDLC)元件形式的光学元件。 PDLC元件是可单独控制的,并且可以被制成基本透射或基本上扩散。 PDLC元素的“开”或“关”状态是定义给定的PDLC元素是透明还是扩散。 还可以为PDLC元件定义附加状态,例如基于PDLC元件的扩散程度。 此外,可以在PDLC元件附近添加镜像层以划分反射模式SLM。 在任何情况下,SLM用于将位图编码成全息物体光束。 版权所有(C)2007,JPO&INPIT

    Bias techniques for magnetic tape media
    24.
    发明专利
    Bias techniques for magnetic tape media 有权
    磁带介质的偏心技术

    公开(公告)号:JP2013069410A

    公开(公告)日:2013-04-18

    申请号:JP2013004429

    申请日:2013-01-15

    CPC classification number: G11B5/584 G11B5/03

    Abstract: PROBLEM TO BE SOLVED: To provide bias techniques for magnetic tape media.SOLUTION: The disclosure is directed to a method for creating a remanence magnetization on a magnetic tape medium. The magnetic tape is first substantially demagnetized, e.g., erased, by an erasure unit having multiple magnetic elements of alternating polarity. The erased magnetic tape is then passed by a bias magnet that creates a remanence magnetization on the magnetic tape. The remanence magnetized magnetic tape is then passed through a servo write head that writes servo patterns to the remanence magnetized magnetic tape. The bias magnet may be housed within the erasure unit or within a bias unit, and the distance between the bias magnet and the tape path of the magnetic tape may be adjustable to create the desired remanence magnetization on the magnetic tape. The remanence magnetization created on the magnetic tape may be greater than 20 percent to reduce defects in the servo pattern written to the magnetic tape.

    Abstract translation: 要解决的问题:提供磁带介质的偏置技术。 解决方案:本公开涉及在磁带介质上产生剩磁磁化的方法。 磁带首先通过具有交替极性的多个磁性元件的擦除单元实质上消磁,例如擦除。 然后,擦除的磁带通过偏置磁体,在磁带上产生剩磁磁化。 然后将剩余磁化磁带通过伺服写入头,伺服写头将伺服模式写入剩磁磁化磁带。 偏置磁体可以容纳在擦除单元内或偏置单元内,并且偏置磁体和磁带的磁带路径之间的距离可以是可调节的,以在磁带上产生期望的剩磁磁化强度。 在磁带上产生的剩余磁化可能大于20%,以减少写入磁带的伺服模式中的缺陷。 版权所有(C)2013,JPO&INPIT

    Recording-medium driving device
    25.
    发明专利
    Recording-medium driving device 审中-公开
    记录介质驱动装置

    公开(公告)号:JP2009087480A

    公开(公告)日:2009-04-23

    申请号:JP2007257332

    申请日:2007-10-01

    CPC classification number: G11B33/123

    Abstract: PROBLEM TO BE SOLVED: To provide a recording-medium driving device in which an external connection part of a recording medium side is surely connected to a terminal member of the driving-device side even if a medium casing is inserted in a unusual state.
    SOLUTION: When a medium casing 1 is moved deep into a device, a reference guide pin 33 with a longer length provided in a driving-device body 20 is first inserted into a first positioning hole 6a of the medium casing 1 and a subsidiary guide pin 34 is subsequently inserted into a positioning hole 6b. By this, the medium casing 1 is guided deep into the device (Y1 direction) on the basis of the reference guide pin 33 having a greater diameter. Therefore, even if the medium casing 1 is inserted in a displaced state in a direction orthogonal to the insertion direction, such displacement can be compensated gradually together with the movement of the medium casing 1. This ensures proper connection between a plurality of external terminals of the medium casing 1 and a plurality of connector pins 32 of the driving-device body 20.
    COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题:为了提供一种记录介质驱动装置,其中记录介质侧的外部连接部分可靠地连接到驱动装置侧的端子构件,即使介质壳体插入异常 州。 解决方案:当介质壳体1深深地移动到装置中时,首先将设置在驱动装置主体20中的具有较长长度的基准引导销33插入到介质壳体1的第一定位孔6a中, 副引导销34随后插入到定位孔6b中。 由此,基于具有较大直径的基准引导销33,介质壳体1被深入到装置(Y1方向)内。 因此,即使介质壳体1在与插入方向正交的方向上以位移状态插入,也可以与介质壳体1的移动一起逐渐补偿这种位移。这确保了多个外部端子之间的适当连接 介质壳体1和驱动装置主体20的多个连接器销32.版权所有(C)2009,JPO&INPIT

    Magnetic recording medium defining recording surface having improved smoothness characteristic
    26.
    发明专利
    Magnetic recording medium defining recording surface having improved smoothness characteristic 审中-公开
    磁记录介质定义具有改进的平滑特性的记录表面

    公开(公告)号:JP2006338862A

    公开(公告)日:2006-12-14

    申请号:JP2006153202

    申请日:2006-06-01

    CPC classification number: G11B5/70 G11B5/41 G11B5/78

    Abstract: PROBLEM TO BE SOLVED: To provide a magnetic recording medium defining a recording surface having improved smoothness characteristics.
    SOLUTION: The magnetic recording medium includes a substrate, a support layer and a magnetic recording layer. The substrate defines a first surface. The support layer is formed over the first surface of the substrate. The magnetic recording layer is formed over the support layer and has a resistivity less than about 1×10
    8 ohm/square. The magnetic recording layer defines a recording surface opposite the support layer. The recording surface has an average roughness of less than about 2.5 nm.
    COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题:提供限定具有改善的平滑特性的记录表面的磁记录介质。 解决方案:磁记录介质包括基板,支撑层和磁记录层。 衬底限定第一表面。 支撑层形成在基板的第一表面上。 磁性记录层形成在支撑层上,电阻率小于约1×10 -6欧姆/平方厘米。 磁记录层限定与支撑层相对的记录表面。 记录表面的平均粗糙度小于约2.5nm。 版权所有(C)2007,JPO&INPIT

    Guide arrangement for data storage tape guiding system
    27.
    发明专利
    Guide arrangement for data storage tape guiding system 审中-公开
    数据存储磁带引导系统的指导安排

    公开(公告)号:JP2006048915A

    公开(公告)日:2006-02-16

    申请号:JP2005224532

    申请日:2005-08-02

    CPC classification number: G11B15/605

    Abstract: PROBLEM TO BE SOLVED: To provide guide arrangements of a data storage tape guiding system. SOLUTION: The invention is directed to arrangements of tape guides which can improve the guiding of data storage tape. Tape guides having specific sizes relative to the data storage tape are also disclosed. The disclosed tape guides and arrangements of tape guides can improve the ability to properly guide the data storage tape, e.g., during media fabrication, servo recording or readout, data recording or data readout. The invention is particularly useful for a magnetic tape, but may also find application with optical tape, holographic tape, or other formats of data storage tape. COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题:提供数据存储带引导系统的引导布置。 解决方案:本发明涉及带引导件的布置,其可以改善数据存储带的引导。 还公开了相对于数据存储带具有特定尺寸的磁带引导件。 公开的磁带引导件和磁带引导件的布置可以提高例如在介质制造,伺服记录或读出,数据记录或数据读出期间适当地引导数据存储磁带的能力。 本发明对于磁带特别有用,但也可以用光带,全息胶带或其他格式的数据存储带来应用。 版权所有(C)2006,JPO&NCIPI

    Holographic media fabrication technique
    28.
    发明专利
    Holographic media fabrication technique 审中-公开
    全息媒体制作技术

    公开(公告)号:JP2005275411A

    公开(公告)日:2005-10-06

    申请号:JP2005085535

    申请日:2005-03-24

    Abstract: PROBLEM TO BE SOLVED: To provide holographic media fabrication techniques. SOLUTION: Holographic data storage media are described in which a holographic recording material is sandwiched between two substrates. The holographic media formulation is often formed of two or more components mixed to obtain a homogeneous formulation. The holographic media formulation may include two or more components which are mixed together prior to injection between the substrates. Curing of the holographic media formulation is substantially avoided during mixing, yet accelerated after the formulation is injected between the substrates. Accordingly, the system and techniques can be used to improve the large scale manufacturability of such media by allowing for fabrication of such media within reasonable cycle times, such as less than one minute, while adhering to stringent requirements for optical clarity and parallelism. COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题:提供全息介质制造技术。 描述了全息数据存储介质,其中全息记录材料夹在两个基板之间。 全息介质制剂通常由混合以获得均匀制剂的两种或多种组分形成。 全息介质制剂可以包括两种或更多种在基材之间注射之前混合在一起的组分。 在混合过程中基本上避免了全息介质制剂的固化,而在配方被注入基材之后加速。 因此,该系统和技术可以用于通过允许在合理的循环时间(例如小于1分钟)内制造这种介质,同时遵守对光学透明度和平行度的严格要求来提高这种介质的大规模可制造性。 版权所有(C)2006,JPO&NCIPI

    Tape reel assembly with radially symmetricaly deforming tape winding surface
    29.
    发明专利
    Tape reel assembly with radially symmetricaly deforming tape winding surface 审中-公开
    带旋转对称变形带卷绕表面的带卷组件

    公开(公告)号:JP2005108409A

    公开(公告)日:2005-04-21

    申请号:JP2004273671

    申请日:2004-09-21

    CPC classification number: G11B23/044 G11B23/08728 G11B23/107

    Abstract: PROBLEM TO BE SOLVED: To provide a tape reel assembly with radially symmetricaly deforming tape winding surface.
    SOLUTION: This tape reel assembly has a hub. The hub includes a cylindrical core, an annular arm, and a web. The cylindrical core demarcates a drive side and a top side. The annular arm is co-axially disposed exterior to and separated from the cylindrical core. Additionally, the annular arm demarcates a tape winding surface bisected by a center line into a top half opposite the drive side and a bottom half adjacent the drive side. The web extends from the top side of the core, and a web center connects to the annular arm at a point in the top half.
    COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 要解决的问题:提供具有径向对称变形带缠绕表面的带盘组件。

    解决方案:该带盘组件具有轮毂。 轮毂包括圆柱形芯,环形臂和腹板。 圆柱形芯线限定驱动侧和顶侧。 环形臂同轴地设置在圆柱形芯的外部并与圆柱形芯分离。 此外,环形臂将由中心线分成的带缠绕表面划分成与驱动侧相对的上半部和邻近驱动侧的下半部。 纤维网从芯的顶侧延伸,并且腹板中心在上半部分的一个点连接到环形臂。 版权所有(C)2005,JPO&NCIPI

    Magnetic recording medium having increased high density broadband signal-to-noise ratio
    30.
    发明专利
    Magnetic recording medium having increased high density broadband signal-to-noise ratio 审中-公开
    具有增加高密度宽带信号噪声比的磁记录介质

    公开(公告)号:JP2004303408A

    公开(公告)日:2004-10-28

    申请号:JP2004094770

    申请日:2004-03-29

    CPC classification number: G11B5/714 G11B5/70 G11B5/735 G11B5/738 Y10T428/12465

    Abstract: PROBLEM TO BE SOLVED: To provide a magnetic recording medium wherein a signal-to-noise ratio is increased in a high-density broadband. SOLUTION: A dual-layer magnetic recording medium includes a nonmagnetic substrate having a front surface and a back surface, a lower support layer formed over the front surface, and a magnetic upper recording layer formed over the lower layer. The magnetic layer contains magnetic metallic pigment particles having at least a saturation coercivity of about 2,000 oersted (Oe), and a binder system for a pigment. The magnetic recording medium exhibits a square ratio greater than 0.84, a front coating Wyko Ra (average roughness) value of less than 5.5 nm, preferably, less than 4.0 nm, and has a BBSNR of greater than 11dB at 151kfci. COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 解决的问题:提供一种在高密度宽带中增加信噪比的磁记录介质。 解决方案:双层磁记录介质包括具有前表面和后表面的非磁性基底,在前表面上形成的下支撑层和形成在下层上的磁上记录层。 磁性层含有至少具有约2,000奥斯特(Oe)的饱和矫顽力的磁性金属颜料颗粒和用于颜料的粘合剂体系。 磁记录介质的平方比大于0.84,前涂层Wyko Ra(平均粗糙度)值小于5.5nm,优选小于4.0nm,在151kfci下具有大于11dB的BBSNR。 版权所有(C)2005,JPO&NCIPI

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