Patents by Inventor Dalong Yuan

Dalong Yuan 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).

  • Optical disk drive capable of reducing power consumption
    Patent number: 8526276
    Abstract: The present invention provides an optical disc drive and computer. The optical disc drive comprises: a tray for laying a disc therein; a drive means connected to the tray; and a control circuit for connecting the drive means and a power supply of a computer connected to the optical disc drive, wherein the drive means establishes an electrical connection with the power supply via the control circuit. The control circuit comprises: a determination unit for determining whether a optical disc drive power-off condition is valid and acquiring a determination result; and a power supply control unit for transmitting a power-off instruction to a computer host when the determination result indicates that the optical disc drive power-off condition is valid. The power-off instruction is configured for instructing the computer to control the power supply to stop supplying power to the control circuit and the drive means.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: September 3, 2013
    Assignee: Lenovo (Beijing) Limited
    Inventors: Dalong Yuan, Xiaogang Wang, Xianqun Yi
  • Optical disk drive and computer
    Patent number: 8385164
    Abstract: The present invention provides an optical disc drive and computer. The optical disc drive comprises: a tray for laying a disc therein; a drive means connected to the tray; and a control circuit for connecting the drive means and a power supply of a computer connected to the optical disc drive, wherein the drive means establishes an electrical connection with the power supply via the control circuit. The control circuit comprises: a determination unit for determining whether a optical disc drive power-off condition is valid and acquiring a determination result; and a power supply control unit for transmitting a power-off instruction to a computer host when the determination result indicates that the optical disc drive power-off condition is valid. The power-off instruction is configured for instructing the computer to control the power supply to stop supplying power to the control circuit and the drive means.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: February 26, 2013
    Assignee: Lenovo (Beijing) Limited
    Inventors: Dalong Yuan, Xiaogang Wang, Xianqun Yi
  • OPTICAL DISK DRIVE AND COMPUTER
    Publication number: 20100199292
    Abstract: The present invention provides an optical disc drive and computer. The optical disc drive comprises: a tray for laying a disc therein; a drive means connected to the tray; and a control circuit for connecting the drive means and a power supply of a computer connected to the optical disc drive, wherein the drive means establishes an electrical connection with the power supply via the control circuit. The control circuit comprises: a determination unit for determining whether a optical disc drive power-off condition is valid and acquiring a determination result; and a power supply control unit for transmitting a power-off instruction to a computer host when the determination result indicates that the optical disc drive power-off condition is valid. The power-off instruction is configured for instructing the computer to control the power supply to stop supplying power to the control circuit and the drive means.
    Type: Application
    Filed: January 6, 2010
    Publication date: August 5, 2010
    Applicant: LENOVO (BEIJING) LIMITED
    Inventors: Dalong Yuan, Xiaogang Wang, Xianqun Yi