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24 条记录 (耗时 0.029 秒)

    Waveplate analyzer based on multiple tunable optical polarization rotators
    4.
    发明授权
    Waveplate analyzer based on multiple tunable optical polarization rotators 有权
    基于多个可调光偏振旋转器的波片分析仪

    公开(公告)号：US07952711B1

    公开(公告)日：2011-05-31

    申请号：US12056262

    申请日：2008-03-26

    申请人： Xiaojun Chen ,  Lianshan Yan ,  Xiaotian Steve Yao

    发明人： Xiaojun Chen ,  Lianshan Yan ,  Xiaotian Steve Yao

    IPC分类号： G01J4/00

    CPC分类号： G01N21/23

    摘要： Systems, apparatus and methods for characterizing linear retarders using a waveplate analyzer constructed by polarization rotators. In one implementation of such an analyzer, both the retardation of the waveplate sample and the orientation of optical axis of the waveplate sample can be simultaneously measured.

    摘要翻译： 使用由偏振旋转器构成的波片分析仪来表征线性延迟器的系统，装置和方法。 在这种分析仪的一个实现中，可以同时测量波片样品的延迟和波片样品的光轴的取向。

    Optical differential group delay module with folded optical path
    6.
    发明授权
    Optical differential group delay module with folded optical path 有权
    具有折叠光路的光学差分组延迟模块

    公开(公告)号：US07723670B1

    公开(公告)日：2010-05-25

    申请号：US12055685

    申请日：2008-03-26

    申请人： Lianshan Yan ,  Xiaojun Chen ,  Xiaotian Steve Yao

    发明人： Lianshan Yan ,  Xiaojun Chen ,  Xiaotian Steve Yao

    IPC分类号： G02F1/01

    CPC分类号： G02B6/2713 ,  G02F1/0136 ,  H04B10/07951

    摘要： Differential group delay (DGD) devices and techniques based on folded optical paths. An in-line polarization monitor can be provided as a feedback for worst-case alignment without using an in-line polarizer. Polarization maintaining retro reflectors can minimize the introduced higher-order polarization effects caused by reflections between folding mirrors or prisms in conventional schemes.

    摘要翻译： 基于折叠光路的差分组延迟（DGD）器件和技术。 可以提供在线偏振监视器作为用于最坏情况对准的反馈而不使用在线偏振器。 偏振维持复古反射器可以将传统方案中折叠镜或棱镜之间的反射引起的高阶极化效应最小化。

    Makeup bag
    8.
    外观设计
    Makeup bag 有权

    公开(公告)号：USD1001498S1

    公开(公告)日：2023-10-17

    申请号：US29874788

    申请日：2023-04-25

    申请人： Xiaojun Chen

    设计人： Xiaojun Chen

    摘要： FIG. 1 is a front, bottom perspective view of a makeup bag, showing my new design;
    FIG. 2 is a rear, top perspective view thereof;
    FIG. 3 is a front elevation view thereof;
    FIG. 4 is a rear elevation view thereof;
    FIG. 5 is a left side elevation view thereof;
    FIG. 6 is a right side elevation view thereof;
    FIG. 7 is a top plan view thereof; and,
    FIG. 8 is a bottom plan view thereof.
    The broken lines in the figures illustrate portions of the makeup bag that form no part, of the claimed design.

    Systems and methods for sample rate tracking
    9.
    发明授权
    Systems and methods for sample rate tracking 有权
    采样率跟踪的系统和方法

    公开(公告)号：US08965942B1

    公开(公告)日：2015-02-24

    申请号：US14207096

    申请日：2014-03-12

    申请人： David P. Rossum ,  Sneha Date ,  Xiaojun Chen

    发明人： David P. Rossum ,  Sneha Date ,  Xiaojun Chen

    IPC分类号： G06F17/17 ,  H03K5/26

    CPC分类号： H03K5/26

    摘要： Systems and methods for sample rate tracking are provided. An example method includes computing an actual latency associated with an output sample from an output sample stream. The actual latency is calculated using a phase and a phase increment (conversion rate ratio). A measured latency is determined using an internal clock using a presentation time of the output sample, or an input sample from an input sample stream, or both. The measured latency is compared to the actual latency to generate a latency error. A successive phase increment can be determined based on the latency error by using a low-pass or adaptive filter to adjust the latency error.

    摘要翻译： 提供了采样率跟踪的系统和方法。 示例性方法包括从输出样本流计算与输出样本相关联的实际等待时间。 使用相位和相位增量（转换速率比）计算实际延迟。 使用内部时钟使用输出样本的呈现时间或来自输入样本流的输入样本或两者来确定测量的等待时间。 将测量的延迟与实际延迟进行比较以产生延迟错误。 通过使用低通或自适应滤波器来调整延迟误差，可以基于延迟误差来确定连续的相位增量。