Patents by Inventor Kedi Tang

Kedi Tang 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).

  • Smart card connection circuit of electronic device and electronic device
    Patent number: 9755373
    Abstract: A smart card connection circuit of an electronic device which includes a card holder, a travel switch, and a switching unit; a contact of the travel switch is located in the card holder, and an output end of the travel switch is connected to a control end of the switching unit; and when a smart card at a preset position in the card holder leaves the preset position, the smart card leaves the contact of the travel switch, the travel switch controls the switching unit to switch to a second output end, and each signal cable pin on the card holder is grounded by using the switching unit before a power cable pin on the card holder is grounded by using the switching unit. The present invention is applied to electronic devices such as a mobile phone and a tablet computer.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: September 5, 2017
    Assignee: HUAWEI DEVICE CO., LTD.
    Inventors: Kedi Tang, Lin Hu, Zhonghui Peng
  • Smart Card Connection Circuit of Electronic Device and Electronic Device
    Publication number: 20150093938
    Abstract: A smart card connection circuit of an electronic device which includes a card holder, a travel switch, and a switching unit; a contact of the travel switch is located in the card holder, and an output end of the travel switch is connected to a control end of the switching unit; and when a smart card at a preset position in the card holder leaves the preset position, the smart card leaves the contact of the travel switch, the travel switch controls the switching unit to switch to a second output end, and each signal cable pin on the card holder is grounded by using the switching unit before a power cable pin on the card holder is grounded by using the switching unit. The present invention is applied to electronic devices such as a mobile phone and a tablet computer.
    Type: Application
    Filed: December 11, 2014
    Publication date: April 2, 2015
    Inventors: Kedi Tang, Lin Hu, Zhonghui Peng