Patents by Inventor Lin Nan Zhao

Lin Nan Zhao 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).

  • Polarity recognition and swapping for DC powered devices
    Patent number: 10505365
    Abstract: A system for recognizing and swapping polarity for DC powered devices that includes a polarity detection module that is configured to identify polarity of DC power input, and further configured to send an output to a controller based on identification of polarity of the DC power input. The system includes a power switch array that is operatively coupled with the controller, and wherein the controller, based on the output, can set one or more switches of the power switch array for executing polarity switching, each of the switches of the power switch array including a pair of MOSFETs.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: December 10, 2019
    Assignee: Fortinet, Inc.
    Inventors: Hongxun Di, Lin Nan Zhao, Zhuoyong Wang
  • POLARITY RECOGNITION AND SWAPPING FOR DC POWERED DEVICES
    Publication number: 20180191157
    Abstract: A system for recognizing and swapping polarity for DC powered devices that includes a polarity detection module that is configured to identify polarity of DC power input, and further configured to send an output to a controller based on identification of polarity of the DC power input. The system includes a power switch array that is operatively coupled with the controller, and wherein the controller, based on the output, can set one or more switches of the power switch array for executing polarity switching, each of the switches of the power switch array including a pair of MOSFETs.
    Type: Application
    Filed: February 15, 2018
    Publication date: July 5, 2018
    Applicant: Fortinet, Inc.
    Inventors: Hongxun Di, Lin Nan Zhao, Zhuoyong Wang
  • Polarity recognition and swapping for DC powered devices
    Patent number: 9917438
    Abstract: A system for recognizing and swapping polarity for DC powered devices that includes a polarity detection module that is configured to identify polarity of DC power input, and further configured to send an output to a controller based on identification of polarity of the DC power input. The system includes a power switch array that is operatively coupled with the controller, and wherein the controller, based on the output, can set one or more switches of the power switch array for executing polarity switching.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: March 13, 2018
    Assignee: Fortinet, Inc.
    Inventors: Hongxun Di, Lin Nan Zhao, Zhuoyong Wang
  • POLARITY RECOGNITION AND SWAPPING FOR DC POWERED DEVICES
    Publication number: 20170054290
    Abstract: A system for recognizing and swapping polarity for DC powered devices that includes a polarity detection module that is configured to identify polarity of DC power input, and further configured to send an output to a controller based on identification of polarity of the DC power input. The system includes a power switch array that is operatively coupled with the controller, and wherein the controller, based on the output, can set one or more switches of the power switch array for executing polarity switching.
    Type: Application
    Filed: August 20, 2015
    Publication date: February 23, 2017
    Applicant: Fortinet, Inc.
    Inventors: Hongxun Di, Lin Nan Zhao, Zhuoyong Wang