Patents by Inventor Hsmlun Li

Hsmlun 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).

  • Fingerprint identification system
    Patent number: 10521638
    Abstract: The present invention provides a fingerprint identification system includes a charge pump circuit configured to generate a supply voltage, wherein the charge pump circuit receives a first clock signal; a pixel circuit, forming a touch capacitance, determining whether the pixel circuit is corresponding to a finger valley or a finger ridge according to the touch capacitance, wherein the pixel circuit receives a second clock signal and the supply voltage; and a clock generating circuit, configured to generate the first clock signal and the second clock signal; wherein the first clock signal is related to the second clock signal.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: December 31, 2019
    Assignee: Shenzhen Goodix Technology Co., Ltd.
    Inventors: Hsmlun Li, MengTa Yang
  • Fingerprint Identification System
    Publication number: 20180096185
    Abstract: The present invention provides a fingerprint identification system includes a charge pump circuit configured to generate a supply voltage, wherein the charge pump circuit receives a first clock signal; a pixel circuit, forming a touch capacitance, determining whether the pixel circuit is corresponding to a finger valley or a finger ridge according to the touch capacitance, wherein the pixel circuit receives a second clock signal and the supply voltage; and a clock generating circuit, configured to generate the first clock signal and the second clock signal; wherein the first clock signal is related to the second clock signal.
    Type: Application
    Filed: November 21, 2017
    Publication date: April 5, 2018
    Inventors: Hsmlun Li, MengTa Yang