Patents by Inventor Liquan QIU

Liquan QIU 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).

  • Patent number: 9310796
    Abstract: A multi-driver control method and an apparatus thereof are disclosed in the present invention. The multi-axis control method comprises the following steps: providing a set of control curves, each curve of the set of control curves controls a driver respectively; dividing the curves by a set time period; sending the divided curves in the same time period to the corresponding drivers in one time period, and sending a unified beat signal to all the drivers in order to synchronize execution time of all the drivers; fitting and restoring a programmed motion curve of each driver according to all received divided control curves; taking points at each driver's own programmed motion curve, which is restored locally, of each driver to control the rotation of each driver's own motor.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: April 12, 2016
    Assignee: DELTA ELECTRO-OPTICS (WUJIANG) LTD.
    Inventor: Liquan Qiu
  • Publication number: 20140114446
    Abstract: A multi-driver control method and an apparatus thereof are disclosed in the present invention. The multi-axis control method comprises the following steps: providing a set of control curves, each curve of the set of control curves controls a driver respectively; dividing the curves by a set time period; sending the divided curves in the same time period to the corresponding drivers in one time period, and sending a unified beat signal to all the drivers in order to synchronize execution time of all the drivers; fitting and restoring a programmed motion curve of each driver according to all received control commands; taking points at each driver's own programmed motion curve, which is restored locally, of each driver to control the rotation of each driver's own motor.
    Type: Application
    Filed: March 18, 2013
    Publication date: April 24, 2014
    Inventor: Liquan QIU