Patents by Inventor Lawrence Chi-Kin POON

Lawrence Chi-Kin POON 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).

  • CONTACTLESS ELEVATOR CONTROL SYSTEM AND METHOD
    Publication number: 20210371235
    Abstract: The present invention provides a contactless elevator control system and method. The system comprises an infrared touch sensor, a relay control device and an elevator button control device, wherein: the infrared touch sensor emits an array of multiple infrared beams, receives reflected infrared beams, calculates a vertical and lateral displacement, determines a corresponding coordinate information, calculates a corresponding elevator button, and sends a corresponding control; the relay control device drives the corresponding relay contacts to close. The solution uses the infrared touch sensor to achieve contactless control of elevator buttons, reducing the risk of spreading bacteria and viruses when touching the elevator buttons.
    Type: Application
    Filed: February 11, 2021
    Publication date: December 2, 2021
    Applicant: Hong Kong Productivity Council
    Inventors: Lawrence Chi-Kin POON, Edmond Chung-Man CHAN, Cheuk-Ming YIP