Patents by Inventor Chih-Hong Lou

Chih-Hong Lou 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).

  • CMOS transconductor circuit with high linearity
    Patent number: 6639457
    Abstract: The present invention provides a CMOS transconductor circuit that features high frequency with high linearity, and the circuit includes an transistor. The source electrode of this output transistor is for receiving a current source. The gate electrode of this output transistor is for receiving another current source, and the drain electrode of this output transistor is for outputting current. Also included within the present invention is resistance that's coupled to the source electrode of the output transistor. A local negative feedback loop used as a negative feedback to connect the gate electrode of the output transistor to the source electrode itself, which makes the transconductance of this CMOS transconductor circuit to become the reciprocal of the resistance.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: October 28, 2003
    Assignee: Industrial Technology Research Institute
    Inventor: Chih-Hong Lou