Patents by Inventor Tim Lan

Tim Lan 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).

  • Method for fast convergence calibration of radio-frequency transceivers
    Patent number: 11128501
    Abstract: To more efficiently compensate for modulation imbalance, a mobile device modulates and demodulates a calibration tone and generates digital data representing modulation imbalance effects on the calibration tone. Using digital data enables modulation imbalance effects to be quickly estimated using digital signal processing techniques, increasing the number of estimates of modulation imbalance effects calculated. The modulation imbalance estimates are used to refine one or more compensation parameters which are applied to transmitted and/or received signals to compensate for errors caused by modulation.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: September 21, 2021
    Assignee: Huwomobility, Inc.
    Inventors: Tim Lan, Sheng Lin, Lekun Lin
  • METHOD FOR FAST CONVERGENCE CALIBRATION OF RADIO-FREQUENCY TRANSCEIVERS
    Publication number: 20090034651
    Abstract: To more efficiently compensate for modulation imbalance, a mobile device modulates and demodulates a calibration tone and generates digital data representing modulation imbalance effects on the calibration tone. Using digital data enables modulation imbalance effects to be quickly estimated using digital signal processing techniques, increasing the number of estimates of modulation imbalance effects calculated. The modulation imbalance estimates are used to refine one or more compensation parameters which are applied to transmitted and/or received signals to compensate for errors caused by modulation.
    Type: Application
    Filed: July 30, 2007
    Publication date: February 5, 2009
    Inventors: Tim Lan, Sheng Lin, Lekun Lin