Patents by Inventor Hyun Hwan Hwan YOO

Hyun Hwan Hwan YOO 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).

  • Publication number: 20150256147
    Abstract: A radio frequency switch may include a common port transmitting and receiving a radio frequency signal, a first switching unit including a plurality of first switch elements connected in series and opening or closing a signal transfer path between a first port inputting and outputting the radio frequency signal and the common port, and a second switching unit having a plurality of second switch elements connected in series and opening or closing a signal transfer path between a second port inputting and outputting the radio frequency signal and the common port. The second switching unit further includes a first filter circuit unit connected to a control terminal of at least one second switch element among the plurality of second switch elements to remove at least one preset frequency band signal.
    Type: Application
    Filed: January 29, 2015
    Publication date: September 10, 2015
    Inventors: Yoo Sam NA, Jong Myeong KIM, Hyun Jin YOO, Hyun Hwan Hwan YOO, Yoo Hwan KIM