Patents by Inventor Massimo Franciotta

Massimo Franciotta 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).

  • Four-quadrant biCMOS analog multiplier
    Patent number: 5587682
    Abstract: An analog multiplier circuit includes three transconductance stages. One of the transconductance stages, receiving a first differential voltage, conducts a differential current responsive to the first differential voltage from the other two transconductance stages. The differential current changes the transconductance in the other two transconductance stages, which are cross-coupled with one another. The second differential input voltage is presented to the other two transconductance stages in parallel, resulting in an output differential current or voltage based on the product of the first and second differential input voltages. Each of the transconductance stages is implemented in BiCMOS, and each includes two differential legs, each having a MOS transistor receiving an input signal and a cascode bipolar transistor.
    Type: Grant
    Filed: March 30, 1995
    Date of Patent: December 24, 1996
    Assignee: SGS-Thomson Microelectronics S.r.l.
    Inventors: Gianluca Colli, Massimo Franciotta, Rinaldo Castello