Patents by Inventor Tso-Jui Tsai

Tso-Jui Tsai 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).

  • Hairpin Band Pass Filter and Related Frequency Down Converter
    Publication number: 20100041362
    Abstract: A band pass filter includes a first micro-strip port for receiving a radio-frequency signal, a second micro-strip port for outputting a filtered radio-frequency signal and comprising at least one resonating cavity formed for enhancing rejecting effect of image frequency corresponding to the filtered radio-frequency signal, and a plurality of resonators arranged between the first micro-strip port and the second micro-strip port for performing band pass filtering on the radio-frequency signal to generate the filtered radio-frequency signal.
    Type: Application
    Filed: February 23, 2009
    Publication date: February 18, 2010
    Inventors: Tso-Jui Tsai, Tzong-Jyh Chen