Patents by Inventor Wei-Chi PAN

Wei-Chi PAN 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).

  • Handheld electronic device with multiple speakers
    Patent number: 11477573
    Abstract: A handheld electronic device includes a first speaker, a second speaker, and an audio controller. The audio controller includes a signal receiving unit, a frequency crossover unit, a harmonic-wave generating unit, a low frequency enhancement unit, and a signal synthesis unit. The signal receiving unit receives an original sound signal and generates a first channel signal and a second channel signal according to the original sound signal. The frequency crossover unit sets a preset frequency crossover point to filter the first channel signal to generate a low frequency signal. The harmonic-wave generating unit generates harmonic waves according to the low frequency signal. The low frequency enhancement unit generates an enhancing low-frequency signal according to the harmonic waves. The signal synthesis unit generates a first channel enhanced signal according to the enhancing low-frequency signal and drives the first speaker.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: October 18, 2022
    Assignee: ASUSTEK COMPUTER INC.
    Inventors: Tsung-Yen Yu, Kuo-Yuan Huang, Shih-Jie Kuo, Yuan-Hao Lo, Yen-Ming Chen, Wei-Chi Pan
  • HANDHELD ELECTRONIC DEVICE
    Publication number: 20210368266
    Abstract: A handheld electronic device includes a first speaker, a second speaker, and an audio controller. The audio controller includes a signal receiving unit, a frequency crossover unit, a harmonic-wave generating unit, a low frequency enhancement unit, and a signal synthesis unit. The signal receiving unit receives an original sound signal and generates a first channel signal and a second channel signal according to the original sound signal. The frequency crossover unit sets a preset frequency crossover point to filter the first channel signal to generate a low frequency signal. The harmonic-wave generating unit generates harmonic waves according to the low frequency signal. The low frequency enhancement unit generates an enhancing low-frequency signal according to the harmonic waves. The signal synthesis unit generates a first channel enhanced signal according to the enhancing low-frequency signal and drives the first speaker.
    Type: Application
    Filed: May 19, 2021
    Publication date: November 25, 2021
    Inventors: Tsung-Yen YU, Kuo-Yuan HUANG, Shih-Jie KUO, Yuan-Hao LO, Yen-Ming CHEN, Wei-Chi PAN