Patents by Inventor Knut Brenndorfer

Knut Brenndorfer 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 methods for reducing noise in oscillating signals
    Patent number: 8446222
    Abstract: Methods and apparatus are described for reducing noise, such as phase noise, in an oscillating signal. The oscillating signal may be generated by a signal generator having a mechanical resonator, such as a crystal oscillator. A filter may be coupled to the output of the mechanical resonator and may have its center frequency adjusted using a phase-locked loop (PLL). A feedback signal from the filter to the signal generator may also be used.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: May 21, 2013
    Assignee: Sand 9, Inc.
    Inventor: Knut Brenndorfer
  • APPARATUS AND METHODS FOR REDUCING NOISE IN OSCILLATING SIGNALS
    Publication number: 20110204936
    Abstract: Methods and apparatus are described for reducing noise, such as phase noise, in an oscillating signal. The oscillating signal may be generated by a signal generator having a mechanical resonator, such as a crystal oscillator. A filter may be coupled to the output of the mechanical resonator and may have its center frequency adjusted using a phase-locked loop (PLL). A feedback signal from the filter to the signal generator may also be used.
    Type: Application
    Filed: July 6, 2009
    Publication date: August 25, 2011
    Applicant: Sand9, Inc.
    Inventor: Knut Brenndorfer