Patents by Inventor Mario Santi

Mario Santi 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).

  • Multiple output current mirror
    Patent number: 5627732
    Abstract: A multiple output current mirror comprising at least three mirror-connected PNP transistors whose bases are connected to a first node, at least three cascode-connected transistors, each cascode transistor being associated to one mirror transistor, a current input corresponding to the collector of the first cascode transistor, and mirror outputs corresponding to the collectors of the two other cascode transistors. The current mirror further comprising means for detecting the base current of each mirror transistor and for reproducing this base current on the collector of the cascode transistor to which each mirror transistor is associated.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: May 6, 1997
    Assignee: SGS-Thomson Microelectronics S.A.
    Inventors: Gee H. Loh, Mario Santi
  • Low-frequency power amplifier
    Patent number: 4045745
    Abstract: A multistage operational amplifier designed as an IC chip, with a large feedback resistor inserted between its output terminal and its inverting input terminal, is provided with an external voltage divider between the output terminal and ground, this divider including a larger ungrounded resistor and a smaller grounded resistor. The junction between these two resistors is capacitively returned to the inverting input terminal.
    Type: Grant
    Filed: March 31, 1976
    Date of Patent: August 30, 1977
    Assignee: SGS-ATES Componenti Elettronici S.p.A.
    Inventors: Carlo Cini, Bruno Murari, Mario Santi