Multi-stage focus actuator and optical head
    1.
    发明授权
    Multi-stage focus actuator and optical head 有权
    多级聚焦执行器和光头

    公开(公告)号:US08385178B2

    公开(公告)日:2013-02-26

    申请号:US12977412

    申请日:2010-12-23

    IPC分类号: G11B7/00

    摘要: Techniques are provided for using a multi-stage actuator to actuate one or more optical components of an optical head. The multi-stage actuator includes a cross-layer displacement component which actuates an optical component to change the beam focus in a displacement range corresponding to the thickness of the data layers in a holographic disk, such that a beam is impinged on the target data layer. The multi-stage actuator also includes a intra-layer focusing component which actuates the optical component in a smaller range to focus the beam on the target data position. The cross-layer displacement component and the intra-layer focusing component may each include more than one actuator. In some embodiments, the focusing component also actuates the optical component in a tilting motion to compensate for movement or imperfections of the disk during a reading or recording process.

    摘要翻译: 提供了使用多级致动器致动光学头的一个或多个光学部件的技术。 多级致动器包括跨层位移部件,其驱动光学部件以在与全息光盘中的数据层的厚度相对应的位移范围内改变光束聚焦,使得光束撞击在目标数据层上 。 多级致动器还包括内部聚焦部件,该部件在较小范围内致动光学部件,以将光束聚焦在目标数据位置上。 跨层位移分量和层内聚焦分量可以各自包括多于一个的致动器。 在一些实施例中,聚焦部件还以倾斜运动来致动光学部件,以在读取或记录过程期间补偿光盘的运动或不完美。

    MULTI-STAGE FOCUS ACTUATOR AND OPTICAL HEAD
    2.
    发明申请
    MULTI-STAGE FOCUS ACTUATOR AND OPTICAL HEAD 有权
    多级聚焦执行器和光头

    公开(公告)号:US20120163140A1

    公开(公告)日:2012-06-28

    申请号:US12977412

    申请日:2010-12-23

    IPC分类号: G11B7/085

    摘要: Techniques are provided for using a multi-stage actuator to actuate one or more optical components of an optical head. The multi-stage actuator includes a cross-layer displacement component which actuates an optical component to change the beam focus in a displacement range corresponding to the thickness of the data layers in a holographic disk, such that a beam is impinged on the target data layer. The multi-stage actuator also includes a intra-layer focusing component which actuates the optical component in a smaller range to focus the beam on the target data position. The cross-layer displacement component and the intra-layer focusing component may each include more than one actuator. In some embodiments, the focusing component also actuates the optical component in a tilting motion to compensate for movement or imperfections of the disk during a reading or recording process.

    摘要翻译: 提供了使用多级致动器致动光学头的一个或多个光学部件的技术。 多级致动器包括跨层位移部件,其驱动光学部件以在与全息光盘中的数据层的厚度相对应的位移范围内改变光束聚焦,使得光束撞击在目标数据层上 。 多级致动器还包括内部聚焦部件,该部件在较小范围内致动光学部件,以将光束聚焦在目标数据位置上。 跨层位移分量和层内聚焦分量可以各自包括多于一个的致动器。 在一些实施例中,聚焦部件还以倾斜运动来致动光学部件,以在读取或记录过程期间补偿光盘的运动或不完美。

    Method and system for processing information from optical disk layers
    3.
    发明授权
    Method and system for processing information from optical disk layers 有权
    从光盘层处理信息的方法和系统

    公开(公告)号:US08520483B2

    公开(公告)日:2013-08-27

    申请号:US12846085

    申请日:2010-07-29

    IPC分类号: G11B7/00

    CPC分类号: G11B7/0065

    摘要: A method for processing information is provided. The method includes directing a laser beam to a first track of a first layer of a holographic storage medium. The method also includes recording a base voltage based on a look-up table. The method includes directing the laser beam to a target track in the first layer, based on position information in tracks. Further, the method includes recording an offset voltage for the target track into the look-up table. Still further, the method includes directing the laser beam to a target layer based on position information in vertical wobbles. The method also includes recording an offset voltage for the target layer into the look-up table. Finally, the method includes determining a final voltage based on the look-up table and applying the final voltage to an actuator for moving the laser beam to a final target position in the holographic storage medium for recording and retrieval of information.

    摘要翻译: 提供了一种处理信息的方法。 该方法包括将激光束引导到全息存储介质的第一层的第一轨道。 该方法还包括基于查找表记录基本电压。 该方法包括基于轨道中的位置信息将激光束引导到第一层中的目标轨道。 此外,该方法包括将目标轨迹的偏移电压记录到查找表中。 此外,该方法包括基于垂直摆动中的位置信息将激光束引导到目标层。 该方法还包括将目标层的偏移电压记录到查找表中。 最后,该方法包括基于查找表确定最终电压,并将最终电压施加到用于将激光束移动到全息存储介质中的最终目标位置的致动器,用于记录和检索信息。

    METHOD AND SYSTEM FOR PROCESSING INFORMATION FROM OPTICAL DISK LAYERS
    4.
    发明申请
    METHOD AND SYSTEM FOR PROCESSING INFORMATION FROM OPTICAL DISK LAYERS 有权
    从光盘层处理信息的方法和系统

    公开(公告)号:US20120026855A1

    公开(公告)日:2012-02-02

    申请号:US12846085

    申请日:2010-07-29

    IPC分类号: G11B7/00

    CPC分类号: G11B7/0065

    摘要: A method for processing information is provided. The method includes directing a laser beam to a first track of a first layer of a holographic storage medium. The method also includes recording a base voltage based on a look-up table. The method includes directing the laser beam to a target track in the first layer, based on position information in tracks. Further, the method includes recording an offset voltage for the target track into the look-up table. Still further, the method includes directing the laser beam to a target layer based on position information in vertical wobbles. The method also includes recording an offset voltage for the target layer into the look-up table. Finally, the method includes determining a final voltage based on the look-up table and applying the final voltage to an actuator for moving the laser beam to a final target position in the holographic storage medium for recording and retrieval of information.

    摘要翻译: 提供了一种处理信息的方法。 该方法包括将激光束引导到全息存储介质的第一层的第一轨道。 该方法还包括基于查找表记录基本电压。 该方法包括基于轨道中的位置信息将激光束引导到第一层中的目标轨道。 此外,该方法包括将目标轨迹的偏移电压记录到查找表中。 此外,该方法包括基于垂直摆动中的位置信息将激光束引导到目标层。 该方法还包括将目标层的偏移电压记录到查找表中。 最后,该方法包括基于查找表确定最终电压,并将最终电压施加到用于将激光束移动到全息存储介质中的最终目标位置的致动器,用于记录和检索信息。

    Low-power digital-to-analog converter
    5.
    发明授权
    Low-power digital-to-analog converter 有权
    低功耗数模转换器

    公开(公告)号:US08384573B2

    公开(公告)日:2013-02-26

    申请号:US12122368

    申请日:2008-05-16

    IPC分类号: H03M3/00

    CPC分类号: H03M3/504 H03F3/2175

    摘要: A digital-to-analog converter (DAC) with a digital segment having a digital data input and an analog segment coupled to the digital segment and having an analog output to output an analog signal corresponding to the digital data. The analog segment includes one or more gain stages and a feedback structure to couple the analog output to the one or more gain stages to attenuate signal distortion at the analog output. A combined gain of the one or more gain stages determines a signal distortion attenuation characteristic of the analog segment.

    摘要翻译: 具有数字分段的数模转换器(DAC)具有数字数据输入和耦合到数字段的模拟分段并且具有模拟输出以输出对应于数字数据的模拟信号。 模拟段包括一个或多个增益级和用于将模拟输出耦合到一个或多个增益级的反馈结构,以衰减模拟输出处的信号失真。 一个或多个增益级的组合增益确定模拟段的信号失真衰减特性。

    Process for LPG production
    8.
    发明申请
    Process for LPG production 失效
    液化石油气生产流程

    公开(公告)号:US20060036122A1

    公开(公告)日:2006-02-16

    申请号:US10929987

    申请日:2004-08-30

    IPC分类号: C07C1/00 C07C1/20 C07C1/04

    摘要: At least one selected from the group consisting of methanol and dimethyl ether, and hydrogen are reacted in the presence of a catalyst for producing a liquefied petroleum gas in which an olefin-hydrogenation catalyst component is supported on a zeolite, to produce a hydrocarbon containing propane or butane as a main component, i.e., a liquefied petroleum gas.

    摘要翻译: 在由甲醇和二甲醚组成的组中选择的至少一种和氢气在用于生产液化石油气的催化剂存在下反应,其中烯烃加氢催化剂组分负载在沸石上,以产生含烃的丙烷 或丁烷为主要成分,即液化石油气。

    Tailored Fischer-Tropsch synthesis product distribution
    9.
    发明申请
    Tailored Fischer-Tropsch synthesis product distribution 审中-公开
    定制费托合成产品分销

    公开(公告)号:US20050203195A1

    公开(公告)日:2005-09-15

    申请号:US10911976

    申请日:2004-08-04

    IPC分类号: C07C27/06 C07C27/26

    摘要: Novel methods of Fischer-Tropsch synthesis are described. It has been discovered that conducting the Fischer-Tropsch synthesis over a catalyst with a catalytically active surface layer of 35 microns or less results in a liquid hydrocarbon product with a high ratio of C5-C20:C20+. Descriptions of novel Fischer-Tropsch catalysts and reactors are also provided. Novel hydrocarbon compositions with a high ratio of C5-C20:C20+ are also described.

    摘要翻译: 描述了费 - 托合成的新方法。 已经发现,在具有35微米或更小的催化活性表面层的催化剂上进行费 - 托合成导致具有高比率C 5 -C 3 - 20 :C 20 + +。 还提供了新型费 - 托催化剂和反应器的描述。 还描述了具有高比例的C 5 -C 20 -C 20 O +的新型烃组合物。