Patents by Inventor Stefan Matschitsch

Stefan Matschitsch 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).

  • Apparatus and method for spectrally shaping a reference clock signal
    Patent number: 7379005
    Abstract: Clock signal jitter detection circuit for detecting a clock signal jitter in a reference clock signal (CLK), having a switched-capacitor reference digital-analogue converter (15) which is clocked by the reference clock signal (CLK) and which converts a digital input signal into a first current, a current-controlled digital-analogue converter (16) which is clocked by the reference clock signal (CLK) and which converts the digital input signal into a second current, and having a current integrator (18) which integrates the difference between the first current and the second current to produce a signal which indicates the clock signal jitter in the reference clock signal (CLK).
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: May 27, 2008
    Assignee: Infineon Technologies AG
    Inventors: Andreas Wiesbauer, Luis Hernandez, Dietmar Sträussnigg, Daniel Gruber, Richard Gaggl, Martin Clara, Stefan Matschitsch
  • Apparatus and method for spectrally shaping a reference clock signal
    Publication number: 20070057830
    Abstract: Clock signal jitter detection circuit for detecting a clock signal jitter in a reference clock signal (CLK), having a switched-capacitor reference digital-analogue converter (15) which is clocked by the reference clock signal (CLK) and which converts a digital input signal into a first current, a current-controlled digital-analogue converter (16) which is clocked by the reference clock signal (CLK) and which converts the digital input signal into a second current, and having a current integrator (18) which integrates the difference between the first current and the second current to produce a signal which indicates the clock signal jitter in the reference clock signal (CLK).
    Type: Application
    Filed: September 6, 2006
    Publication date: March 15, 2007
    Inventors: Andreas Wiesbauer, Luis Hernandez, Dietmar Straussnigg, Daniel Gruber, Richard Gaggl, Martin Clara, Stefan Matschitsch