Patents by Inventor Hua-Qiao Ma

Hua-Qiao Ma 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).

  • Portable electronic device and external keyboard thereof
    Patent number: 8362930
    Abstract: The present invention relates to a portable electronic device and an external keyboard thereof. The portable electronic device comprises a first port comprising a circular earphone plug and a keyboard plug. The external keyboard comprises a main body, a keyboard array and a second port. The keyboard array is disposed on the main body and comprises a plurality of scan signal lines. The second port is electrically coupled to the scan signal lines of the keyboard array, and is capable of inserting into the first port of the portable electronic device so as to electrically couple to the keyboard plug. Therefore, the external keyboard can be connected to an earphone jack in a plug-and-play fashion without necessarity to add a new port such that the external keyboard is convenient to use and carry and can be freely rotated in any angle.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: January 29, 2013
    Assignees: Inventec Appliances (Shanghai) Co., Ltd., Inventec Appliances Corp., Inventec Appliances Corp., Shanghai
    Inventors: Hua-Qiao Ma, Tian-You Wang
  • Portable Electronic Device and External Keyboard Thereof
    Publication number: 20110063140
    Abstract: The present invention relates to a portable electronic device and an external keyboard thereof. The portable electronic device comprises a first port comprising a circular earphone plug and a keyboard plug. The external keyboard comprises a main body, a keyboard array and a second port. The keyboard array is disposed on the main body and comprises a plurality of scan signal lines. The second port is electrically coupled to the scan signal lines of the keyboard array, and is capable of inserting into the first port of the portable electronic device so as to electrically couple to the keyboard plug. Therefore, the external keyboard can be connected to an earphone jack in a plug-and-play fashion without necessarity to add a new port such that the external keyboard is convenient to use and carry and can be freely rotated in any angle.
    Type: Application
    Filed: August 11, 2010
    Publication date: March 17, 2011
    Applicants: INVENTEC APPLIANCES (SHANGHAI) CO. LTD., INVENTEC APPLIANCES CORP., INVENTEC APPLIANCES CORP., SHANGHAI
    Inventors: Hua-Qiao Ma, Tian-You Wang