Patents by Inventor Jiangwei Cheng

Jiangwei Cheng 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: 20220299546
    Abstract: A method for detecting a variation of input voltage. The method is generating an indication signal based on the input voltage, and comparing the input voltage with a first reference signal. The first reference signal is smaller than the indication signal, and if the input voltage is consistently smaller than the first reference signal during a first time duration from the moment when the input voltage is decreased to the first reference signal, the indication signal is decreased after the first time duration.
    Type: Application
    Filed: March 16, 2022
    Publication date: September 22, 2022
    Inventors: Yuedong Chen, Junhong Li, Jiangwei Cheng