Patents by Inventor Qifeng Ren

Qifeng Ren 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).

  • System and method for detecting an aircraft jitter
    Patent number: 9457913
    Abstract: The present invention relates to a system and method for detecting an aircraft jitter. The aircraft jitter detection system comprises: a jitter detection apparatus, which detects accelerations of pitch and yaw of the aircraft; a data acquisition apparatus, which obtains accelerations in two directions detected by the jitter detection apparatus; and a jitter determination apparatus, which extracts frequency spectrum and energy information of the jitter according to the accelerations in two directions obtained by the data acquisition apparatus, and determines whether the aircraft jitters.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: October 4, 2016
    Assignee: Air China Limited
    Inventors: Jiaju Wu, Zhuping Gu, Lei Huang, Huifeng Ding, Fengliang Zheng, Qifeng Ren, Yanfeng Zhang
  • SYSTEM AND METHOD FOR DETECTING AN AIRCRAFT JITTER
    Publication number: 20150203211
    Abstract: The present invention relates to a system and method for detecting an aircraft jitter. The aircraft jitter detection system comprises: a jitter detection apparatus, which detects accelerations of pitch and yaw of the aircraft; a data acquisition apparatus, which obtains accelerations in two directions detected by the jitter detection apparatus; and a jitter determination apparatus, which extracts frequency spectrum and energy information of the jitter according to the accelerations in two directions obtained by the data acquisition apparatus, and determines whether the aircraft jitters.
    Type: Application
    Filed: July 23, 2014
    Publication date: July 23, 2015
    Inventors: Jiaju Wu, Zhuping Gu, Lei Huang, Huifeng Ding, Fengliang Zheng, Qifeng Ren, Yanfeng Zhang