USB system with spread spectrum EMI reduction
    1.
    发明申请
    USB system with spread spectrum EMI reduction 有权
    USB系统具有扩频EMI降低功能

    公开(公告)号:US20090028218A1

    公开(公告)日:2009-01-29

    申请号:US11881416

    申请日:2007-07-27

    IPC分类号: H04B1/69

    CPC分类号: H04L1/205 H04L2001/0094

    摘要: A method for applying spread spectrum noise reduction techniques to USB specifically USB2.0 communications systems includes the step of generating a base (seed) frequency for the USB system, modulating the base (seed) frequency with a spread spectrum (SS) characteristic, and utilizing (as-is, not modified) the existing ASIC that multiplying the now modulated base (seed) frequency to generate the USB standard frequency signaling rate of 480 MHz with the SS characteristic within the USB standard specification for frequency deviation.

    摘要翻译: 一种将扩展频谱降噪技术应用于USB专用USB2.0通信系统的方法包括为USB系统生成基本(种子)频率,以扩展频谱(SS)特性调制基本(种子)频率的步骤,以及 利用(原样,未修改)现有的ASIC,将现有调制的基准(种子)频率乘以产生USB标准频率信号速率为480 MHz,具有USB标准规范内的SS特性,用于频率偏差。

    USB system with spread spectrum EMI reduction
    2.
    发明授权
    USB system with spread spectrum EMI reduction 有权
    USB系统具有扩频EMI降低功能

    公开(公告)号:US07953175B2

    公开(公告)日:2011-05-31

    申请号:US11881416

    申请日:2007-07-27

    IPC分类号: H04L27/00

    CPC分类号: H04L1/205 H04L2001/0094

    摘要: A method for applying spread spectrum noise reduction techniques to USB specifically USB2.0 communications systems includes the step of generating a base (seed) frequency for the USB system, modulating the base (seed) frequency with a spread spectrum (SS) characteristic, and utilizing (as-is, not modified) the existing ASIC that multiplying the now modulated base (seed) frequency to generate the USB standard frequency signaling rate of 480 MHz with the SS characteristic within the USB standard specification for frequency deviation.

    摘要翻译: 一种将扩展频谱降噪技术应用于USB专用USB2.0通信系统的方法包括为USB系统生成基本(种子)频率,以扩展频谱(SS)特性调制基本(种子)频率的步骤,以及 利用(原样,未修改)现有的ASIC,将现有调制的基准(种子)频率乘以产生USB标准频率信号速率为480 MHz,具有USB标准规范内的SS特性,用于频率偏差。