Patents by Inventor Hui Boon Chua

Hui Boon Chua 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).

  • Dynamic RFPA operating modes for a converged communication device
    Patent number: 11855672
    Abstract: A converged device with dual RFPA technology for a dynamic switchable mode. One example provides a communication device comprising a RF transmitter system and a controller. The RF transmitter system includes a plurality of RFPAs, each RFPA having a biasing system and outputting an output signal, and a summing junction, wherein the output signal of each RFPA are combined to form an output RF transmitter signal. The controller is configured to control the biasing state of each biasing system to a nominal bias state for a first mode of the communication device. The controller is configured to control a first plurality of offset voltages applied to each biasing system for a second mode of the communication device. The controller is configured to control a second plurality of offset voltages applied to each biasing system for a third mode of the communication device.
    Type: Grant
    Filed: February 16, 2022
    Date of Patent: December 26, 2023
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Wai Mun Lee, Hui Boon Chua, Alexander Oon, Kee Sin Thong, Soon Leng Yap
  • DYNAMIC RFPA OPERATING MODES FOR A CONVERGED COMMUNICATION DEVICE
    Publication number: 20230261681
    Abstract: A converged device with dual RFPA technology for a dynamic switchable mode. One example provides a communication device comprising a RF transmitter system and a controller. The RF transmitter system includes a plurality of RFPAs, each RFPA having a biasing system and outputting an output signal, and a summing junction, wherein the output signal of each RFPA are combined to form an output RF transmitter signal. The controller is configured to control the biasing state of each biasing system to a nominal bias state for a first mode of the communication device. The controller is configured to control a first plurality of offset voltages applied to each biasing system for a second mode of the communication device. The controller is configured to control a second plurality of offset voltages applied to each biasing system for a third mode of the communication device.
    Type: Application
    Filed: February 16, 2022
    Publication date: August 17, 2023
    Inventors: Wai Mun Lee, Hui Boon Chua, Alexander Oon, Kee Sin Thong, Soon Leng Yap