Patents by Inventor YI-XIAO YU

YI-XIAO YU 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).

  • Testing card and testing system for USB port
    Patent number: 8441273
    Abstract: A testing card for a USB port includes first USB contacting pins, a second USB contacting pin, a transmitting circuits, a voltage converting circuit, and a testing portion. The first USB contacting pins are connected to the USB port to receive a number of USB signals. The second USB contacting pin is connected to the USB port to receive a voltage signal from the USB port. The transmitting circuit is electrically connected to the first USB contacting pins to transmit the USB signals therefrom. The voltage converting circuit is electrically connected to the second USB contacting pin to convert the voltage signal to a predetermined level. The testing portion is electrically connected to the outputs of the transmitting circuit and the voltage converting circuit to receive the USB signals and the converted voltage signal.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: May 14, 2013
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd
    Inventors: Jia Shen, Yi-Xiao Yu, Tai-Chen Wang
  • TESTING CARD AND TESTING SYSTEM FOR USB PORT
    Publication number: 20120019278
    Abstract: A testing card for a USB port includes first USB contacting pins, a second USB contacting pin, a transmitting circuits, a voltage converting circuit, and a testing portion. The first USB contacting pins are connected to the USB port to receive a number of USB signals. The second USB contacting pin is connected to the USB port to receive a voltage signal from the USB port. The transmitting circuit is electrically connected to the first USB contacting pins to transmit the USB signals therefrom. The voltage converting circuit is electrically connected to the second USB contacting pin to convert the voltage signal to a predetermined level. The testing portion is electrically connected to the outputs of the transmitting circuit and the voltage converting circuit to receive the USB signals and the converted voltage signal.
    Type: Application
    Filed: November 17, 2010
    Publication date: January 26, 2012
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
    Inventors: JIA SHEN, YI-XIAO YU, TAI-CHEN WANG