Low-power digital-to-analog converter
    3.
    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。

    MULTI-STAGE FOCUS ACTUATOR AND OPTICAL HEAD
    4.
    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。

    Process for LPG production
    7.
    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
    8.
    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。

    Method for catalytically cracking waste plastics and apparatus for catalytically cracking waste plastics
    10.
    发明授权
    Method for catalytically cracking waste plastics and apparatus for catalytically cracking waste plastics 有权
    催化裂化废塑料的方法和催化裂化废塑料的设备

    公开(公告)号:US07932424B2

    公开(公告)日:2011-04-26

    申请号:US11588378

    申请日:2006-10-27

    IPC分类号: C10G1/10 B01J8/10

    摘要: To provide a method for catalytically cracking waste plastics wherein the efficiency in decomposition is high; even polyethylene composed of linear chain molecules difficult in decomposition is decomposable at a low temperature and decomposed residue is hardly produced; the process is simple since dechlorination can be achieved at the same time with catalytically cracking waste plastics in one reaction vessel; and oil fractions can be recovered at 50% or more on a net yield basis. The method for catalytically cracking waste plastics of the present invention has a constitution in which waste plastics are loaded as a raw material into a granular FCC catalyst heated to a temperature range from 350° C. to 500° C. inside a reaction vessel, thereby decomposing and gasifying the waste plastics in contact with the FCC catalyst.

    摘要翻译: 提供催化裂解废塑料的方法,其中分解效率高; 甚至由分解困难的线性链分子组成的聚乙烯在低温下是可分解的,几乎不产生分解残余物; 该方法简单,因为可以在一个反应​​容器中催化裂解废塑料同时实现脱氯; 并且可以以净收率为基础以50%或更高的速度回收油馏分。 本发明的催化裂解废塑料的方法具有将废塑料作为原料装载到加热到反应容器内的350℃〜500℃的粒状FCC催化剂催化剂催化剂催化剂催化剂催化裂化催化剂的方法 将与FCC催化剂接触的废塑料分解和气化。