Patents by Inventor Lingfen YUE

Lingfen YUE has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Techniques for fractional-N phase locked loops
    Patent number: 9484939
    Abstract: Embodiments describe techniques for utilizing fractional-N phase locked loops (PLL). Some embodiments describe a fractional-divider based fractional-N PLL for a spread spectrum clock (SSC) generator that utilizes phase average techniques to suppress phase interpolator nonlinearity. Some embodiments describe a fractional-N PLL based on fractional dividers with hybrid finite impulse response (FIR) filtering. Some embodiments describe a small size and low power divider for a hybrid FIR fractional-N PLL.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: November 1, 2016
    Assignee: Lattice Semiconductor Corporation
    Inventors: Kexin Luo, Kai Zhou, Shengguo Cao, Lingfen Yue, Fangquing Chu, Yu Shen, Zhi Wu
  • Techniques for Fractional-N Phase Locked Loops
    Publication number: 20160248431
    Abstract: Embodiments describe techniques for utilizing fractional-N phase locked loops (PLL). Some embodiments describe a factional-divider based fractional-N PLL for a spread spectrum clock (SSC) generator that utilizes phase average techniques to suppress phase interpolator nonlinearity. Some embodiments describe a fractional-N PLL based on fractional dividers with hybrid finite impulse response (FIR) filtering. Some embodiments describe a small size and low power divider for a hybrid FIR fractional-N PLL.
    Type: Application
    Filed: May 16, 2014
    Publication date: August 25, 2016
    Inventors: Kexin LUO, Kai ZHOU, Shengguo CAO, Lingfen YUE, Fangquing CHU, Yu SHEN, Zhi WU