Patents by Inventor Chuan-Hui Huang

Chuan-Hui Huang 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).

  • USB device and mode detecting method thereof
    Patent number: 7930441
    Abstract: A USB peripheral device and a method of determining USB speed mode. The method of determining USB speed mode for an USB peripheral device, wherein the USB peripheral device is coupled to an USB host through an USB transmission cable, and the USB transmission cable comprises power and ground lines for power supply, and first and second data signals for transmitting data, the method comprising the USB peripheral device pulling up voltage level of the first data signal with a first pull-up device, the USB peripheral device pulling up voltage level of the second data signal with a second pull-up device, and the USB host determining a high/full speed mode for the USB peripheral device, when detecting only one of the first and second data signals exceeding a threshold, and then detecting the other data signal exceeding the threshold in a predetermined period.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: April 19, 2011
    Assignee: Via Technologies, Inc.
    Inventors: Hong-Si Wang, Chuan-Hui Huang
  • USB DEVICE AND MODE DETECTING METHOD THEREOF
    Publication number: 20080195770
    Abstract: A USB peripheral device and a method of determining USB speed mode. The method of determining USB speed mode for an USB peripheral device, wherein the USB peripheral device is coupled to an USB host through an USB transmission cable, and the USB transmission cable comprises power and ground lines for power supply, and first and second data signals for transmitting data, the method comprising the USB peripheral device pulling up voltage level of the first data signal with a first pull-up device, the USB peripheral device pulling up voltage level of the second data signal with a second pull-up device, and the USB host determining a high/full speed mode for the USB peripheral device, when detecting only one of the first and second data signals exceeding a threshold, and then detecting the other data signal exceeding the threshold in a predetermined period.
    Type: Application
    Filed: October 26, 2007
    Publication date: August 14, 2008
    Applicant: VIA TECHNOLOGIES, INC.
    Inventors: Hong-Si Wang, Chuan-Hui Huang