公开(公告)号：US20110110413A1

公开(公告)日：2011-05-12

申请号：US12997792

申请日：2009-02-17

申请人： Rongjun Ding ,  Jianghong Li ,  Gaohua Chen ,  Wei Xu ,  Huaguo Chen

发明人： Rongjun Ding ,  Jianghong Li ,  Gaohua Chen ,  Wei Xu ,  Huaguo Chen

IPC分类号： H04B17/00

CPC分类号： H02P27/12

摘要： A space vector based synchronous modulating method includes sampling a frequency f of a reference voltage vector; checking a relational table of frequencies and carrier wave ratios by the frequency f so as to obtain a carrier wave ratio N; obtaining a passing angle Δθ of the reference voltage vector by Δθ=2π/N; obtaining a modulating angle θm of the reference voltage vector by θm=(Nth−1)×Δθ, in which Nth indicates which time of sampling; obtaining a modulating ratio m according to a modulating ratio-frequency curve; accounting and synthesizing an output angle of three basic voltage vectors of the reference voltage vector according to the modulating angle θm and the passing angle Δθ of the reference voltage vector and the modulating ratio m; comparing a variable quantity θf the reference voltage vector angle θ and the output angle of three basic voltage vectors, and outputting corresponding basic voltage vectors according to the comparing result; synthesizing an output voltage in accordance with the reference voltage vector by the basic voltage vectors.

摘要翻译： 基于空间矢量的同步调制方法包括对参考电压矢量的频率f进行采样; 通过频率f检查频率和载波比的关系表，以获得载波比N; 获得一个通过角＆Dgr;＆thetas; 的参考电压矢量由＆Dgr;＆Thetas; = 2＆pgr; / N; 获得参考电压矢量的调制角度和m; m =（Nth-1）×＆Dgr;其中Nth表示采样的时间; 根据调制比 - 频率曲线获得调制比m; 根据调制角度＆m;和通过角度＆Dgr;计算和合成参考电压矢量的三个基本电压矢量的输出角; 的参考电压矢量和调制比m; 比较可变数量和参考电压矢量角度; 和三个基本电压矢量的输出角，并根据比较结果输出相应的基本电压矢量; 根据基准电压矢量合成基准电压矢量的输出电压。

公开(公告)号：US08450957B2

公开(公告)日：2013-05-28

申请号：US12997792

申请日：2009-02-17

申请人： Rongjun Ding ,  Jianghong Li ,  Gaohua Chen ,  Wei Xu ,  Huaguo Chen

发明人： Rongjun Ding ,  Jianghong Li ,  Gaohua Chen ,  Wei Xu ,  Huaguo Chen

IPC分类号： H02P21/14

CPC分类号： H02P27/12

摘要： A space vector based synchronous modulating method includes sampling a frequency f of a reference voltage vector; checking a relational table of frequencies and carrier wave ratios by the frequency f so as to obtain a carrier wave ratio N; obtaining a passing angle Δθ of the reference voltage vector by Δθ=2π/N; obtaining a modulating angle θm of the reference voltage vector by θm=(Nth−1)×Δθ, in which Nth indicates which time of sampling; obtaining a modulating ratio m according to a modulating ratio-frequency curve; accounting and synthesizing an output angle of three basic voltage vectors of the reference voltage vector according to the modulating angle θm and the passing angle Δθ of the reference voltage vector and the modulating ratio m; comparing a variable quantity θf the reference voltage vector angle θ and the output angle of three basic voltage vectors, and outputting corresponding basic voltage vectors according to the comparing result; synthesizing an output voltage in accordance with the reference voltage vector by the basic voltage vectors.

摘要翻译： 基于空间矢量的同步调制方法包括对参考电压矢量的频率f进行采样; 通过频率f检查频率和载波比的关系表，以获得载波比N; 通过Deltatheta = 2pi / N获得参考电压矢量的通过角Deltatheta; 通过t =（Nth-1）×Deltatheta获得参考电压矢量的调制角度，其中Nth表示采样的时间; 根据调制比 - 频率曲线获得调制比m; 根据调制角度和参考电压矢量的通过角度Deltatheta和调制比m计算和合成参考电压矢量的三个基本电压矢量的输出角; 将参考电压矢量角度θ的可变量与三个基本电压矢量的输出角进行比较，并根据比较结果输出相应的基本电压矢量; 根据基准电压矢量合成基准电压矢量的输出电压。

公开(公告)号：US07301580B2

公开(公告)日：2007-11-27

申请号：US10479550

申请日：2001-12-14

申请人： Yuan Zhang ,  Xiongyu Zhu ,  Guangkui Wang ,  Jianghong Li

发明人： Yuan Zhang ,  Xiongyu Zhu ,  Guangkui Wang ,  Jianghong Li

IPC分类号： H04N7/12

CPC分类号： H04N21/21 ,  H04N7/152 ,  H04N19/423 ,  H04N21/23

摘要： A method of digital image combination for multiple channels with multiple sets and a bus interface which includes an image-processing unit for m-channel sub-images, an image-processing unit for n-set combining images, n-set video data buses, address and control buses and a pixel data access control and bus switching logic module. A bus strobe signal controls m-channel sub-images pixel data outputting to one set of the n video data buses at a specific moment. The n sets of image-processing units for combining images combine the sub-images pixel data on the video data buses of n sets to form n integral image data. The method can be used in the multimedia image communication system and image editing system for raising the multiple image-processing capabilities.

摘要翻译： 一种用于具有多个集合的多个信道的数字图像组合的方法和包括用于m个信道子图像的图像处理单元的总线接口，用于n组合图像的图像处理单元，n组视频数据总线， 地址和控制总线以及像素数据访问控制和总线切换逻辑模块。 总线选通信号控制在特定时刻输出到一组n个视频数据总线的m个通道子图像像素数据。 用于组合图像的n组图像处理单元将n组的视频数据总线上的子图像像素数据组合以形成n个整合图像数据。 该方法可用于多媒体图像通信系统和图像编辑系统中，用于提高多个图像处理能力。