Patents by Inventor Li-Chih Chiu

Li-Chih Chiu 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).

  • Power switching circuit of portable electronic device
    Patent number: 8667314
    Abstract: A power switching circuit of a portable electronic device is disclosed. The portable electronic device can be coupled to an expansion device. The power switching circuit includes a first power terminal, a second power terminal, a first switch module, a second switch module, and a power pin. The first switch module is coupled to the first power terminal. The second switch module is coupled to the second power terminal. The power pin is coupled to the first switch module and the second switch module, respectively. When the portable electronic device is not coupled to the expansion device, the first switch module and the second switch module are turned off, such that first power provided by the first power terminal and second power provided by the second power terminal fail to be provided for the power pin via the first switch module and the second switch module.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: March 4, 2014
    Assignee: Pegatron Corporation
    Inventors: Hung-Wei Yen, Li-Chih Chiu
  • POWER SWITCHING CIRCUIT OF PORTABLE ELECTRONIC DEVICE
    Publication number: 20100180138
    Abstract: A power switching circuit of a portable electronic device is disclosed. The portable electronic device can be coupled to an expansion device. The power switching circuit includes a first power terminal, a second power terminal, a first switch module, a second switch module, and a power pin. The first switch module is coupled to the first power terminal. The second switch module is coupled to the second power terminal. The power pin is coupled to the first switch module and the second switch module, respectively. When the portable electronic device is not coupled to the expansion device, the first switch module and the second switch module are turned off, such that first power provided by the first power terminal and second power provided by the second power terminal fail to be provided for the power pin via the first switch module and the second switch module.
    Type: Application
    Filed: December 17, 2009
    Publication date: July 15, 2010
    Inventors: Hung-Wei Yen, Li-Chih Chiu