Patents by Inventor Jianyun Xiao

Jianyun Xiao 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: 20240229846
    Abstract: The present disclosure discloses a fast and simple expansion bolt, including an expansion bolt main body, an expansion bolt locating line formed in an outer wall of a front end of the expansion bolt main body; a locating slot formed in the expansion bolt locating line; a rubber ring located on an outer wall of the expansion bolt main body; a tail seat and a locating ring located and mounted at a rear end of the expansion bolt main body; a pressing seat located in the tail seat; a locating column located on the pressing seat; a pressing handle movably arranged on the locating column; an adjustment pin arranged between the pressing handle and the locating column; and the expansion bolt main body is integrally formed with the expansion bolt locating line, the locating slot, the locating ring, and the tail seat through casting.
    Type: Application
    Filed: January 3, 2024
    Publication date: July 11, 2024
    Inventors: JIANYUN XIAO, JIANWEI WENG, JIANMIN QI
  • Patent number: 10451647
    Abstract: A method for measuring speed of a permanent magnet synchronous motor includes: acquiring a number K of pulse signals received in a current measuring period and outputted by an incremental encoder; acquiring a first duration Sn-1 between a time point when a pulse is last received in a previous measuring period and a time point when the previous measuring period ends, and a second duration Sn between a time point when a pulse is last received in the current measuring period and a time point when the current measuring period ends; calculating a third duration T0, measured between the time point when the pulse is last received in the previous measuring period and the time point when the pulse is last received in the current measuring period, according to the length T of the current, measuring period, the first duration Sn-1 and the second duration Sn; and calculating a motor speed v according to formula: v = K K 0 × 1 T ? ? 0 .
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: October 22, 2019
    Assignee: UBTECH Robotics Corp.
    Inventors: Youjun Xiong, Wenhua Fan, Lifu Zhang, Jianyun Xiao
  • Publication number: 20180188282
    Abstract: A method for measuring speed of a permanent magnet synchronous motor includes: acquiring a number K of pulse signals received in a current measuring period and outputted by an incremental encoder; acquiring a first duration Sn?1 between a time point when a pulse is last received in a previous measuring period and a time point when the previous measuring period ends, and a second duration Sn between a time point when a pulse is last received in the current measuring period and a time point when the current measuring period ends; calculating a third duration T0, measured between the time point when the pulse is last received in the previous measuring period and the time point when the pulse is last received in the current measuring period, according to the length T of the measuring period, the first duration Sn?1 and the second duration Sn; and calculating a motor speed v according to formula: v = K K 0 × 1 T ? ? 0 .
    Type: Application
    Filed: March 9, 2017
    Publication date: July 5, 2018
    Inventors: Youjun Xiong, Wenhua Fan, Lifu Zhang, Jianyun Xiao