Patents by Inventor Cherng Cherng Liu

Cherng Cherng Liu 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).

  • Bandpass amplifier
    Patent number: 7245186
    Abstract: The present invention discloses a bandpass amplifier having gain and bandpass performance. The bandpass amplifier includes an input match unit for matching the gain of the amplifier and having a first filter response; a first bias unit electrically connected to the input match unit for driving the first terminal of the amplifier and having a first high pass filter response; a gain stage electrically connected to the first bias unit for providing the flat gain of the amplifier; a second bias unit electrically connected to the gain stage for driving the second terminal of the amplifier and having a second high pass filter response; and an output match unit electrically connected to the second bias unit for matching the gain of the amplifier and having a second filter response.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: July 17, 2007
    Assignees: Integrated System Solution Corp., Sheng-Fuh Chang
    Inventors: Sheng Fuh Chang, Jia Liang Chen, Cherng Cherng Liu, Hung Cheng Chen, Shu Fen Tang, Albert Chen