Patents by Inventor Hsun-Wu Lee

Hsun-Wu Lee 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).

  • Signal transmission path selection circuit and method, and electronic device employing the circuit
    Patent number: 8396509
    Abstract: An electronic device includes a central processing unit, a USB connector, a USB switch, and an audio path selector. The USB switch has a data transmission path and an audio signal transmission path for signal transmission between the central processing unit and the USB connector. The USB switch selects the data transmission path for data transmission according to a first selection signal from the central processing unit, and selects the audio signal transmission path for audio signal transmission according to a second selection signal from the central processing unit. The audio path selector interconnects the central processing unit and the USB switch, and has a first audio path for output of audio signals from the central processing unit to the audio signal transmission path, and a second audio path for output of audio signals from the audio signal transmission path to the central processing unit.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: March 12, 2013
    Assignee: Wistron Corporation
    Inventors: Shih-An Chen, Hsun-Wu Lee
  • SIGNAL TRANSMISSION PATH SELECTION CIRCUIT AND METHOD, AND ELECTRONIC DEVICE EMPLOYING THE CIRCUIT
    Publication number: 20100109749
    Abstract: An electronic device includes a central processing unit, a USB connector, a USB switch, and an audio path selector. The USB switch has a data transmission path and an audio signal transmission path for signal transmission between the central processing unit and the USB connector. The USB switch selects the data transmission path for data transmission according to a first selection signal from the central processing unit, and selects the audio signal transmission path for audio signal transmission according to a second selection signal from the central processing unit. The audio path selector interconnects the central processing unit and the USB switch, and has a first audio path for output of audio signals from the central processing unit to the audio signal transmission path, and a second audio path for output of audio signals from the audio signal transmission path to the central processing unit.
    Type: Application
    Filed: October 20, 2009
    Publication date: May 6, 2010
    Inventors: Shih-An CHEN, Hsun-Wu LEE