Patents by Inventor Li An Da

Li An Da 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).

  • System and method for power-on control of input/output drivers
    Patent number: 7403047
    Abstract: A system and method for controlling an input/output driver. The system includes a control system configured to receive a first supply voltage and a second supply voltage and generate a control signal, and a first transistor including a first gate, a first terminal, and a second terminal. The first gate is configured to receive the control signal, and the first terminal is configured to receive the first supply voltage. Additionally, the system includes a second transistor including a second gate, a third terminal, and a fourth terminal, and the second gate is coupled to the second terminal. Moreover, the system includes a third transistor including a third gate, a fifth terminal, and a sixth terminal, and the third gate is configured to receive the control signal. Also, the system includes an input/output pad coupled to the fourth terminal and the fifth terminal.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: July 22, 2008
    Assignee: Semiconductor Manufacturing International (Shanghai) Corporation
    Inventors: Ta-Lee Yu, Lei Wang, Li An Da
  • System and method for power-on control of input/output drivers
    Patent number: 7239186
    Abstract: A system and method for controlling an input/output driver. The system includes a control system configured to receive a first supply voltage and a second supply voltage and generate a control signal, and a first transistor including a first gate, a first terminal, and a second terminal. The first gate is configured to receive the control signal, and the first terminal is configured to receive the first supply voltage. Additionally, the system includes a second transistor including a second gate, a third terminal, and a fourth terminal, and the second gate is coupled to the second terminal. Moreover, the system includes a third transistor including a third gate, a fifth terminal, and a sixth terminal, and the third gate is configured to receive the control signal. Also, the system includes an input/output pad coupled to the fourth terminal and the fifth terminal.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: July 3, 2007
    Assignee: Semiconductor Manufacturing International (Shanghai) Corporation
    Inventors: Ta-Lee Yu, Lei Wang, Li An Da