Patents by Inventor Petra Schubert

Petra Schubert 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).

  • Current source circuit for generating a low-noise current and method of operating the current source circuit
    Patent number: 6995604
    Abstract: A current source circuit for generating a low-noise current has a current mirror circuit with a first and a second transistor. The current mirror circuit contains a capacitor connected between a source connection and a gate connection of the second transistor. The current mirror circuit likewise contains a switching element disposed between a drain connection of the first transistor and the gate connection of the second transistor. The switching element may be controlled as a function of an operating state of the current source circuit.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: February 7, 2006
    Assignee: Infineon Technologies AG
    Inventors: Giuseppe Li Puma, Petra Schubert
  • Current source circuit for generating a low-noise current and method of operating the current source circuit
    Publication number: 20040095188
    Abstract: A current source circuit for generating a low-noise current has a current mirror circuit with a first and a second transistor. The current mirror circuit contains a capacitor connected between a source connection and a gate connection of the second transistor. The current mirror circuit likewise contains a switching element disposed between a drain connection of the first transistor and the gate connection of the second transistor. The switching element may be controlled as a function of an operating state of the current source circuit.
    Type: Application
    Filed: November 6, 2003
    Publication date: May 20, 2004
    Inventors: Giuseppe Li Puma, Petra Schubert