Patents by Inventor Liuming Zhao

Liuming 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).

  • Power management for wireless nodes
    Patent number: 11374502
    Abstract: A system includes a rectifier having an input configured to receive a variable AC input voltage and convert the AC input voltage to a rectified output voltage. A power converter has an input coupled to receive the rectified output voltage and to provide a DC supply voltage at an output thereof. A low drop-out regulator has an input coupled to receive the supply voltage and is configured provide a regulated voltage. A sensor is coupled to receive the regulated voltage as a power source and is configured to sense a condition and provide sensor data indicative of the sensed condition.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: June 28, 2022
    Assignee: CASE WESTERN RESERVE UNIVERSITY
    Inventors: Philip X. L. Feng, Shiquan Fan, Liuming Zhao, Ran Wei, Zenghui Wang, Xu-Qian Zheng
  • POWER MANAGEMENT FOR WIRELESS NODES
    Publication number: 20210135593
    Abstract: A system includes a rectifier having an input configured to receive a variable AC input voltage and convert the AC input voltage to a rectified output voltage. A power converter has an input coupled to receive the rectified output voltage and to provide a DC supply voltage at an output thereof. A low drop-out regulator has an input coupled to receive the supply voltage and is configured provide a regulated voltage. A sensor is coupled to receive the regulated voltage as a power source and is configured to sense a condition and provide sensor data indicative of the sensed condition.
    Type: Application
    Filed: April 2, 2017
    Publication date: May 6, 2021
    Inventors: Philip X.L. Feng, Shiquan Fan, Liuming Zhao, Ran Wei, Zenghui Wang, Xu-Qian Zheng