Patents by Inventor Faxin Li

Faxin Li 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).

  • Device and a method for adjusting electrical impedance based on contact action
    Patent number: 10084424
    Abstract: A device and associated method for adjusting electrical impedance based on contact action are disclosed. The device includes a drive unit (1), a contact unit (2), a monitoring unit (3), and a control unit (4). The monitoring unit (3) measures an impedance signal of an electromagnetic functional material (7) in an alternating-current circuit, and transfers the impedance signal to the control unit (4). In response to the impedance signal measured by the monitoring unit (3), the control unit (4) controls the drive unit (1) to apply a mechanical load on the contact unit (2), which causes the contact unit (2) to contact the electromagnetic functional material (7). The value of a contact load is adjusted, so as to adjust the electrical impedance of the electromagnetic functional material (7), thereby achieving the objective of adjusting the impedance matching in the alternating-current circuit in real time.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: September 25, 2018
    Assignees: Peking University, Jilin University
    Inventors: Daining Fang, Hao Zhou, Yongmao Pei, Faxin Li, Hongwei Zhao, Ji Fu
  • Touch effect-based device and method for adjusting electrical impedance
    Publication number: 20180076787
    Abstract: A device and associated method for adjusting electrical impedance based on contact action are disclosed. The device includes a drive unit (1), a contact unit (2), a monitoring unit (3), and a control unit (4). The monitoring unit (3) measures an impedance signal of an electromagnetic functional material (7) in an alternating-current circuit, and transfers the impedance signal to the control unit (4). In response to the impedance signal measured by the monitoring unit (3), the control unit (4) controls the drive unit (1) to apply a mechanical load on the contact unit (2), which causes the contact unit (2) to contact the electromagnetic functional material (7). The value of a contact load is adjusted, so as to adjust the electrical impedance of the electromagnetic functional material (7), thereby achieving the objective of adjusting the impedance matching in the alternating-current circuit in real time.
    Type: Application
    Filed: May 18, 2015
    Publication date: March 15, 2018
    Inventors: Daining Fang, Hao Zhou, Yongmao Pei, Faxin Li, Hongwei Zhao, Ji Fu