Patents by Inventor Shui Shing Choi

Shui Shing Choi 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).

  • Publication number: 20210227314
    Abstract: The application belongs to the field of earphone technology, and discloses a type of noise-reducing earphones with adjustable voice. An audio processor processes voice signals. After a digital signal processor (DSP) completes noise reduction, the signals return to the audio processor, where two signals are combined, through another signal wire. Then the signals are transmitted to a digital-to-analog converter (DAC) that transmits the signals to an acoustic amplifier, where the signals are transmitted to a speaker to realize the adjustment of voice.
    Type: Application
    Filed: April 6, 2021
    Publication date: July 22, 2021
    Inventors: Shun Ming Yuen, Wai Yin Mung, Shui Shing Choi, Ka Ming Wu