Patents by Inventor Xiaotie WU

Xiaotie WU 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).

  • Publication number: 20240106623
    Abstract: Aspects described herein include devices and methods for phase tracking and correction using sampling. One aspect includes a wireless communication apparatus having an analog 1-bit sampler configured to sample a phase locked loop (PLL) output signal using a PLL reference clock to generate 1-bit samples and a digital phase computation and control circuit configured to receive the 1-bit samples from the analog 1-bit sampler and apply phase corrections to the PLL based on a phase error derived from the 1-bit samples.
    Type: Application
    Filed: September 23, 2022
    Publication date: March 28, 2024
    Inventors: Gang LIU, Xiaotie WU, Razak HOSSAIN, Marco ZANUSO, Yiwu TANG
  • Patent number: 11025195
    Abstract: In certain aspects, an apparatus includes a transformer including an input inductor and an output inductor, wherein the input inductor is magnetically coupled to the output inductor. The apparatus also includes a transconductance driver configured to drive the input inductor based on an input signal. The apparatus further includes a feedback circuit configured to detect an output voltage swing at the output inductor, generate a regulated voltage at the input inductor, and control the regulated voltage based on the detected output voltage swing.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: June 1, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Wu-Hsin Chen, Rui Xu, Marco Vigilante, Li Liu, Xiaotie Wu
  • Publication number: 20200321913
    Abstract: In certain aspects, an apparatus includes a transformer including an input inductor and an output inductor, wherein the input inductor is magnetically coupled to the output inductor. The apparatus also includes a transconductance driver configured to drive the input inductor based on an input signal. The apparatus further includes a feedback circuit configured to detect an output voltage swing at the output inductor, generate a regulated voltage at the input inductor, and control the regulated voltage based on the detected output voltage swing.
    Type: Application
    Filed: April 4, 2019
    Publication date: October 8, 2020
    Inventors: Wu-Hsin CHEN, Rui XU, Marco VIGILANTE, Li LIU, Xiaotie WU