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    DRM receiver with analog and digital separation filter and demodulation method
    1.
    发明授权
    DRM receiver with analog and digital separation filter and demodulation method 有权
    DRM接收机采用模拟和数字分离滤波器和解调方式

    公开(公告)号：US08208365B2

    公开(公告)日：2012-06-26

    申请号：US12079927

    申请日：2008-03-28

    申请人： Yan Liu ,  Huazhong Yang

    发明人： Yan Liu ,  Huazhong Yang

    IPC分类号： H04J11/00

    CPC分类号： H04L27/265 ,  H04H2201/12 ,  H04L27/0008

    摘要： A Digital Radio Mondiale (DRM) receiver and demodulation method includes an analog and digital separation filter for filtering and separating a DRM-encoded signal and a non DRM-encoded signal from a composite RF signal received at the receiver. The DRM receiver includes a programmable downsampler and a programmable N-point Fast Fourier Transform (FFT) to recover and demodulate the OFDM symbols in a received DRM-encoded RF signal. The received signal is digitally sampled at a rate operably integer downsampled to achieve a number N samples in the useful portion of the OFDM symbol for input to an N-point FFT, where N equal to a power of two. The downsampling rate and size (N-points) of the FFT depend on the DRM encoding and transmission parameters, notably the robustness mode and spectrum occupancy. The structure and operation of the receiver in this manner simplifies the design and reduces the required filter order of the analog and digital separation filter.

    摘要翻译： 数字无线电广播（DRM）接收机和解调方法包括模拟和数字分离滤波器，用于从在接收机处接收的复合RF信号过滤和分离DRM编码信号和非DRM编码信号。 DRM接收机包括可编程下行采样器和可编程N点快速傅里叶变换（FFT），以在接收的DRM编码RF信号中恢复和解调OFDM符号。 接收到的信号以可操作的整数下采样的速率进行数字采样，以在OFDM符号的有用部分中实现N个采样，以输入到N点FFT，其中N等于2的幂。 FFT的下采样率和大小（N点）取决于DRM编码和传输参数，特别是鲁棒性模式和频谱占用。 以这种方式，接收机的结构和操作简化了设计，并减少了模拟和数字分离滤波器所需的滤波器顺序。

    DRM receiver with analog and digital separation filter and demodulation method
    2.
    发明申请
    DRM receiver with analog and digital separation filter and demodulation method 有权
    DRM接收机采用模拟和数字分离滤波器和解调方式

    公开(公告)号：US20080279090A1

    公开(公告)日：2008-11-13

    申请号：US12079927

    申请日：2008-03-28

    申请人： Yan Liu ,  Huazhong Yang

    发明人： Yan Liu ,  Huazhong Yang

    IPC分类号： H04J11/00

    CPC分类号： H04L27/265 ,  H04H2201/12 ,  H04L27/0008

    摘要： A Digital Radio Mondiale (DRM) receiver and demodulation method includes an analog and digital separation filter for filtering and separating a DRM-encoded signal and a non DRM-encoded signal from a composite RF signal received at the receiver. The DRM receiver includes a programmable downsampler and a programmable N-point Fast Fourier Transform (FFT) to recover and demodulate the OFDM symbols in a received DRM-encoded RF signal. The received signal is digitally sampled at a rate operably integer downsampled to achieve a number N samples in the useful portion of the OFDM symbol for input to an N-point FFT, where N equal to a power of two. The downsampling rate and size (N-points) of the FFT depend on the DRM encoding and transmission parameters, notably the robustness mode and spectrum occupancy. The structure and operation of the receiver in this manner simplifies the design and reduces the required filter order of the analog and digital separation filter.

    摘要翻译： 数字无线电广播（DRM）接收机和解调方法包括模拟和数字分离滤波器，用于从在接收机处接收的复合RF信号过滤和分离DRM编码信号和非DRM编码信号。 DRM接收机包括可编程下行采样器和可编程N点快速傅里叶变换（FFT），以在接收的DRM编码RF信号中恢复和解调OFDM符号。 所接收的信号以可操作地整数下采样的速率进行数字采样，以在OFDM符号的有用部分中实现N个采样，以输入到N点FFT，其中N等于2的幂。 FFT的下采样率和大小（N点）取决于DRM编码和传输参数，特别是鲁棒性模式和频谱占用。 以这种方式，接收机的结构和操作简化了设计，并减少了模拟和数字分离滤波器所需的滤波器顺序。

    DRM receiver and demodulation method
    3.
    发明申请
    DRM receiver and demodulation method 有权
    DRM接收机和解调方法

    公开(公告)号：US20080292027A1

    公开(公告)日：2008-11-27

    申请号：US12079953

    申请日：2008-03-28

    申请人： Yan Liu ,  Huazhong Yang

    发明人： Yan Liu ,  Huazhong Yang

    IPC分类号： H04L27/06

    CPC分类号： H04L27/265 ,  H04B1/0003

    摘要： A Digitial Radio Mondiale (DRM) receiver and demodulation method includes a programmable downsampler and a programmable N-point Fast Fourier Transform (FFT) to recover and demodulate the OFDM symbols in a received DRM-encoded RF signal. The received signal is digitally sampled at a rate operably integer downsampled to achieve a number N samples in the useful portion of the OFDM symbol for input to an N-point FFT, where N equal to a power of two. The downsampling rate and size (N-points) of the FFT depend on the DRM encoding and transmission parameters, notably the robustness mode and spectrum occupancy. This reduces the processing/computational requirements and the design complexity of the DRM receiver.

    摘要翻译： 数字无线电广播（DRM）接收机和解调方法包括可编程下行采样器和可编程N点快速傅里叶变换（FFT），以便在接收的DRM编码RF信号中恢复和解调OFDM符号。 所接收的信号以可操作地整数下采样的速率进行数字采样，以在OFDM符号的有用部分中实现N个采样，以输入到N点FFT，其中N等于2的幂。 FFT的下采样率和大小（N点）取决于DRM编码和传输参数，特别是鲁棒性模式和频谱占用。 这降低了DRM接收机的处理/计算要求和设计复杂度。

    DRM receiver and demodulation method
    4.
    发明授权
    DRM receiver and demodulation method 有权
    DRM接收机和解调方法

    公开(公告)号：US08295372B2

    公开(公告)日：2012-10-23

    申请号：US12079953

    申请日：2008-03-28

    申请人： Yan Liu ,  Huazhong Yang

    发明人： Yan Liu ,  Huazhong Yang

    IPC分类号： H04K1/10

    CPC分类号： H04L27/265 ,  H04B1/0003

    摘要： A Digitial Radio Mondiale (DRM) receiver and demodulation method includes a programmable downsampler and a programmable N-point Fast Fourier Transform (FFT) to recover and demodulate the OFDM symbols in a received DRM-encoded RF signal. The received signal is digitally sampled at a rate operably integer downsampled to achieve a number N samples in the useful portion of the OFDM symbol for input to an N-point FFT, where N equal to a power of two. The downsampling rate and size (N-points) of the FFT depend on the DRM encoding and transmission parameters, notably the robustness mode and spectrum occupancy. This reduces the processing/computational requirements and the design complexity of the DRM receiver.

    摘要翻译： 数字无线电广播（DRM）接收机和解调方法包括可编程下行采样器和可编程N点快速傅里叶变换（FFT），以便在接收的DRM编码RF信号中恢复和解调OFDM符号。 所接收的信号以可操作地整数下采样的速率进行数字采样，以在OFDM符号的有用部分中实现N个采样，以输入到N点FFT，其中N等于2的幂。 FFT的下采样率和大小（N点）取决于DRM编码和传输参数，特别是鲁棒性模式和频谱占用。 这降低了DRM接收机的处理/计算要求和设计复杂度。

    Mosquito killer
    5.
    外观设计
    Mosquito killer 有权

    公开(公告)号：USD997290S1

    公开(公告)日：2023-08-29

    申请号：US29838088

    申请日：2022-05-10

    申请人： Yan Liu

    设计人： Yan Liu

    摘要： FIG. 1 is a perspective view of a mosquito killer, showing my new design;
    FIG. 2 is another perspective view thereof;
    FIG. 3 is a front view thereof;
    FIG. 4 is a rear view thereof;
    FIG. 5 is a left side view thereof;
    FIG. 6 is a right side view thereof;
    FIG. 7 is a top plan view thereof; and,
    FIG. 8 is a bottom plan view thereof.
    The broken line showing of portions of the mosquito killer is included for the purpose of illustrating only and forms no part of the claimed design.

    Method and system for preventing loops in mesh networks
    6.
    发明授权
    Method and system for preventing loops in mesh networks 有权
    用于防止网状网络环路的方法和系统

    公开(公告)号：US09060322B2

    公开(公告)日：2015-06-16

    申请号：US13281072

    申请日：2011-10-25

    申请人： Xu Zou ,  Kangchang Huang ,  Yan Liu

    发明人： Xu Zou ,  Kangchang Huang ,  Yan Liu

    IPC分类号： H04L12/28 ,  H04W4/00 ,  H04W40/02 ,  H04L12/705 ,  H04L12/715 ,  H04L12/707

    CPC分类号： H04W40/02 ,  H04L45/04 ,  H04L45/18 ,  H04L45/24

    摘要： The present disclosure discloses a network device and/or method for preventing loops in routing paths of network frames in a wireless digital network. The disclosed network device at a network node receives a frame from a wired network. The frame includes a site identifier uniquely corresponding to the wired network, a source physical address, and a destination physical address. If the network node is selected as a representative portal node, the network device forwards the frame. Otherwise, if another network node is selected as the representative portal node, the network device drops the received frame to prevent forming a loop in a routing path corresponding to the frame. If not other network is selected as the representative portal node, the network device floods the frame to other network nodes in the wireless network.

    摘要翻译： 本公开公开了一种用于防止无线数字网络中的网络帧的路由路径中的环路的网络设备和/或方法。 在网络节点处公开的网络设备从有线网络接收帧。 帧包括与有线网络唯一对应的站点标识符，源物理地址和目的地物理地址。 如果选择网络节点作为代表性门户节点，则网络设备转发该帧。 否则，如果选择另一网络节点作为代表门户节点，则网络设备丢弃所接收的帧，以防止在对应于该帧的路由路径中形成环路。 如果不选择其他网络作为代表门户网站节点，则网络设备会将该帧洪​​泛到无线网络中的其他网络节点。

    Electrostatic chuck with polymer protrusions
    9.
    发明授权
    Electrostatic chuck with polymer protrusions 有权
    具有聚合物突起的静电卡盘

    公开(公告)号：US08879233B2

    公开(公告)日：2014-11-04

    申请号：US13266657

    申请日：2010-05-13

    申请人： Richard A. Cooke ,  Nate Richard ,  Steven Donnell ,  Mark Vose ,  Yan Liu

    发明人： Richard A. Cooke ,  Nate Richard ,  Steven Donnell ,  Mark Vose ,  Yan Liu

    IPC分类号： H01T23/00 ,  H01L21/683 ,  H01L21/687

    CPC分类号： H01L21/6831 ,  H01L21/6875

    摘要： In accordance with an embodiment of the invention, there is provided an electrostatic chuck. The electrostatic chuck comprises a surface layer activated by a voltage in an electrode to form an electric charge to electrostatically clamp a substrate to the electrostatic chuck. The surface layer includes a plurality of polymer protrusions and a charge control layer to which the plurality of polymer protrusions adhere, the plurality of polymer protrusions extending to a height above portions of the charge control layer surrounding the plurality of polymer protrusions to support the substrate upon the plurality of polymer protrusions during electrostatic clamping of the substrate.

    摘要翻译： 根据本发明的实施例，提供了一种静电卡盘。 静电卡盘包括由电极中的电压激活的表面层，以形成电荷以将基板静电夹持到静电卡盘。 表面层包括多个聚合物突起和电荷控制层，多个聚合物突起粘附在该电荷控制层上，多个聚合物突起延伸到围绕多个聚合物突起的电荷控制层的部分上方的高度，以将基底支撑在 在基板的静电夹持期间的多个聚合物突起。