Patents by Inventor Olli Erik Keskinen

Olli Erik Keskinen 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).

  • Patent number: 10587238
    Abstract: The invention is related to sound processing methods, especially to digital sound processing methods. In an embodiment of the invention, the method includes at least the following steps: calculating the magnitude spectrum of a segment of the sound signal, processing of the calculated magnitude spectrum to produce an outline of the spectrum indicating the peaks of the calculated magnitude spectrum, processing said outline to adjust said peaks and surrounding frequency areas of the spectrum, applying a Hilbert transform to said processed outline for forming the complex spectrum of a minimum phase impulse response, and convolving said minimum phase impulse response with said segment of the sound signal for forming a processed output signal segment.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: March 10, 2020
    Assignee: OEKSOUND OY
    Inventor: Olli Erik Keskinen
  • Publication number: 20190131951
    Abstract: The invention is related to sound processing methods, especially to digital sound processing methods. In an embodiment of the invention, the method includes at least the following steps: calculating the magnitude spectrum of a segment of the sound signal, processing of the calculated magnitude spectrum to produce an outline of the spectrum indicating the peaks of the calculated magnitude spectrum, processing said outline to adjust said peaks and surrounding frequency areas of the spectrum, applying a Hilbert transform to said processed outline for forming the complex spectrum of a minimum phase impulse response, and convolving said minimum phase impulse response with said segment of the sound signal for forming a processed output signal segment.
    Type: Application
    Filed: October 26, 2017
    Publication date: May 2, 2019
    Applicant: Oeksound Oy
    Inventor: Olli Erik Keskinen