Patents by Inventor Mao-An Wang

Mao-An Wang 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 device and method thereof, and projection device using the power switching device
    Patent number: 8653695
    Abstract: A power switching device, a power switching method, and a projection device using the power switching device are provided. In the power switching method, a first power and a second power are received, and the voltage level of the first power is compared with the voltage level of the second power. One of the first power and the second power having the higher voltage level is sustained by using one of the first power and the second power having the lower voltage level until one of the first power and the second power having the higher voltage level stabilizes. At least one of the first power and the second power having the higher voltage level and being already stabilized is output as an output voltage.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: February 18, 2014
    Assignee: Coretronic Corporation
    Inventors: Yi-Shun Chang, Mao-An Wang
  • POWER SWITCHING DEVICE AND METHOD THEREOF, AND PROJECTION DEVICE USING THE POWER SWITCHING DEVICE
    Publication number: 20110127840
    Abstract: A power switching device, a power switching method, and a projection device using the power switching device are provided. In the power switching method, a first power and a second power are received, and the voltage level of the first power is compared with the voltage level of the second power. One of the first power and the second power having the higher voltage level is sustained by using one of the first power and the second power having the lower voltage level until one of the first power and the second power having the higher voltage level stabilizes. At least one of the first power and the second power having the higher voltage level and being already stabilized is output as an output voltage.
    Type: Application
    Filed: October 18, 2010
    Publication date: June 2, 2011
    Applicant: CORETRONIC CORPORATION
    Inventors: Yi-Shun Chang, Mao-An Wang