Chaotic Communication System with Modulation of Nonlinear Elements
    6.
    发明申请
    Chaotic Communication System with Modulation of Nonlinear Elements 审中-公开
    混沌通信系统与非线性元素调制

    公开(公告)号:US20080008320A1

    公开(公告)日:2008-01-10

    申请号:US11761555

    申请日:2007-06-12

    IPC分类号: H04L9/00

    CPC分类号: H04L27/001

    摘要: A chaotic communication system employs transmitting and receiving chaotic oscillating circuits. One improvement to first-generation systems is the ability to modulate a nonreactive element in the transmitting circuit, thus increasing modulation bandwidth. Other features include insertion of a gain control amplifier in a chaotic receiver; signal filtering in chaotic transmitters and receivers; use of chaotic modulation techniques for cellular telephony applications; dual-transmitter and receiver systems; a dual receiver synchronization detector; interfaces to communication systems; analog chaotic signal modulation; use of multiple chaotic transmitters and receivers; digital algorithm improvement using a cube-law nonlinear component; a Gb-only receiver; a Gb-only transmitter; and positive slope transmitter and receiver systems.

    摘要翻译: 混沌通信系统采用发射和接收混沌振荡电路。 对第一代系统的一个改进是能够调制发射电路中的非反应元件,从而增加调制带宽。 其他特征包括在混沌接收机中插入增益控制放大器; 混沌发射机和接收机中的信号滤波; 使用混沌调制技术进行蜂窝电话应用; 双发射机和接收机系统; 双接收机同步检测器; 与通信系统的接口; 模拟混沌信号调制; 使用多个混沌发射机和接收机; 使用立方体非线性分量进行数字算法改进; 仅Gb接收器; 一个仅Gb的发射机; 和正斜率发射机和接收机系统。

    System and method for composing a display frame of multiple layered
graphic sprites

    公开(公告)号:US5546518A

    公开(公告)日:1996-08-13

    申请号:US369649

    申请日:1995-01-06

    摘要: A data processing apparatus includes a graphics display device for displaying a display frame comprising a plurality of display frame pixels. A sprite management system composes the display frame from a plurality of graphic sprites. Each graphic sprite comprises a plurality of sprite pixels and corresponding sprite pixel values. Each sprite has a specified depth relative to the other sprites. One of the sprites is designated to be a video sprite. This sprite is loaded with a chroma-key value. The sprite management system includes a data processing device connected to access a display frame composition buffer. The data processing device is programmed to write pixel values of individual sprites to the display frame composition buffer. This writing begins with the pixel values of the sprite having the greatest depth and proceeds with the pixel values of the remaining sprites in order of decreasing sprite depth. The display frame data is then passed to a video overlay board which overlays a video image over those pixels containing the chroma-key value. The result is a display frame in which the plurality of graphic sprites, including the video sprite, appear layered with respect to each other in accordance with their respectively specified depths.