Patents by Inventor Chik Ki Yeung

Chik Ki Yeung 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).

  • Optimizing battery consumption of remote end devices on a wireless long-range wide-area network (LoRaWAN)
    Patent number: 11323963
    Abstract: A long-range wireless network extends the battery life of the most remote end devices by forming pairs with a relayer end device that relays data from the remote end device to a gateway. The battery life of the relayer is reduced to extend the battery life of the remote end device. An analysis server selects pairs of end devices that have a difference in battery levels above a threshold, and require less transmission energy from the remote end device to the relayer than to the gateway. Energy or path losses are estimated based on geographic locations of end devices and terrain or obstacles. Redundant pairs from a remote end device are eliminated by selecting the relayer requiring the lowest transmission energy. A new configuration is sent to the remote end device. New configurations with higher Spreading Factors (SF) compensate for pairs with larger path losses to the relayer.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: May 3, 2022
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Tak Wing Lam, Chik Ki Yeung, Tak Fuk Wong