Patents by Inventor Christian Ivo Menolfi

Christian Ivo Menolfi 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).

  • Phase locked loop apparatus with adjustable phase shift
    Patent number: 7724862
    Abstract: The phase locked loop (PLL) with adjustable phase shift is described. The PLL includes a voltage controlled oscillator which is capable of generating multiple phase shifted output signals, and multiple phase detectors capable of determining the phase differences between the output signals and a reference clock. The PLL further includes a weighting device capable of weighting the phase differences and generating a control signal for the voltage controlled oscillator.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: May 25, 2010
    Assignee: International Business Machines Corporation
    Inventors: Christian Ivo Menolfi, Thomas Helmut Toifl
  • Phase locked loop apparatus with adjustable phase shift
    Patent number: 7492850
    Abstract: The phase locked loop (PLL) with adjustable phase shift is described. The PLL includes a voltage controlled oscillator which is capable of generating multiple phase shifted output signals, and multiple phase detectors capable of determining the phase differences between the output signals and a reference clock. The PLL further includes a weighting device capable of weighting the phase differences and generating a control signal for the voltage controlled oscillator.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: February 17, 2009
    Assignee: International Business Machines Corporation
    Inventors: Christian Ivo Menolfi, Thomas Helmut Toifl
  • PHASE LOCKED LOOP APPARATUS WITH ADJUSTABLE PHASE SHIFT
    Publication number: 20080292040
    Abstract: The phase locked loop (PLL) with adjustable phase shift is described. The PLL includes a voltage controlled oscillator which is capable of generating multiple phase shifted output signals, and multiple phase detectors capable of determining the phase differences between the output signals and a reference clock. The PLL further includes a weighting device capable of weighting the phase differences and generating a control signal for the voltage controlled oscillator.
    Type: Application
    Filed: June 17, 2008
    Publication date: November 27, 2008
    Inventors: Christian Ivo Menolfi, Thomas Helmut Toifl