Patents by Inventor Sander L. Gierkink

Sander L. Gierkink 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).

  • Quadrature voltage controlled oscillator utilizing common-mode inductive coupling
    Patent number: 6911870
    Abstract: A voltage controlled oscillator including a first oscillator circuit portion with at least one first inductor, and a second oscillator circuit portion with at least one second inductor, wherein the at least one first inductor and the at least one second inductor are electromagnetically coupled to each other.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: June 28, 2005
    Assignee: Agere Systems, Inc.
    Inventors: Sander L. Gierkink, Vito Boccuzzi, Robert C. Frye, Salvatore Levantino
  • Phase-error suppressor and a method of suppressing phase-error
    Publication number: 20040127172
    Abstract: The present invention provides a phase-error suppressor for use with a plurality of transistors having a common source coupled to a current generator that receives signals at a frequency. In one embodiment, the phase-error suppressor includes an inductor, coupled between the common source and the current generator, that resonates proportionally to the frequency with a first capacitance associated with the plurality of transistors. In one embodiment, the inductor resonates at about twice the frequency wherein input phase error is suppressed at output.
    Type: Application
    Filed: July 28, 2003
    Publication date: July 1, 2004
    Applicant: Agere Systems Inc.
    Inventors: Sander L. Gierkink, Salvatore Levantino
  • Quadrature voltage controlled oscillator utilizing common-mode inductive coupling
    Publication number: 20040066241
    Abstract: A voltage controlled oscillator including a first oscillator circuit portion with at least one first inductor, and a second oscillator circuit portion with at least one second inductor, wherein the at least one first inductor and the at least one second inductor are electromagnetically coupled to each other.
    Type: Application
    Filed: July 31, 2003
    Publication date: April 8, 2004
    Inventors: Sander L. Gierkink, Vito Boccuzzi, Robert C. Frye, Salvatore Levantino