Patents by Inventor Ke-Qiang SHEN

Ke-Qiang SHEN 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).

  • Sensor for sensing usage status of electrical device and associated method
    Patent number: 10601466
    Abstract: A sensor for sensing a usage status of an electrical device and its associated method are disclosed. The sensor is disposed at a near-end of a power line of the electrical device. The sensor provided with a magnetic detector, an analog-to-digital converter and a controller. The magnetic detector is close to the power line to detect a magnetic field change around the power line to correspondingly generate an analog signal. The analog-to-digital converter (ADC) is used to receive the analog signal and convert the analog signal to a digital signal. The controller is used to receive the digital signal and generate an indication signal to accordingly learn at least one of statuses of being turned on and turned off the electrical device.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: March 24, 2020
    Assignee: PROLIFIC TECHNOLOGY INC.
    Inventors: Yun-Guo Li, Ke-Qiang Shen, Yen-Zhi Lin, Jia-Zhang Xu
  • SENSOR FOR SENSING USAGE STATUS OF ELECTRICAL DEVICE AND ASSOCIATED METHOD
    Publication number: 20170278376
    Abstract: A sensor for sensing a usage status of an electrical device and its associated method are disclosed. The sensor is disposed at a near-end of a power line of the electrical device. The sensor provided with a magnetic detector, an analog-to-digital converter and a controller. The magnetic detector is close to the power line to detect a magnetic field change around the power line to correspondingly generate an analog signal. The analog-to-digital converter (ADC) is used to receive the analog signal and convert the analog signal to a digital signal. The controller is used to receive the digital signal and generate an indication signal to accordingly learn at least one of statuses of being turned on and turned off the electrical device.
    Type: Application
    Filed: March 24, 2017
    Publication date: September 28, 2017
    Inventors: Yun-Guo LI, Ke-Qiang SHEN, Yen-Zhi LIN, Jia-Zhang XU