Patents Assigned to Everest Biomedical Instruments Company
  • Fast wavelet estimation of weak bio-signals using novel algorithms for generating multiple additional data frames
    Patent number: 7333619
    Abstract: A method and apparatus for de-noising weak bio-signals having a relatively low signal to noise ratio utilizes an iterative process of wavelet de-noising a data set comprised of a new set of frames of wavelet coefficients partially generated through a cyclic shift algorithm. The method preferably operates on a data set having 2N frames, and the iteration is performed N?1 times. The resultant wavelet coefficients are then linearly averaged and an inverse discrete wavelet transform is performed to arrive at the de-noised original signal. The method is preferably carried out in a digital processor.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: February 19, 2008
    Assignees: Everest Biomedical Instruments Company, Washington University
    Inventors: Elvir Causevic, Eldar Causevic, Mladen Victor Wickerhauser
  • Fast Wavelet Estimation of Weak Bio-signals Using Novel Algorithms for Generating Multiple Additional Data Frames
    Publication number: 20060233390
    Abstract: A method and apparatus for de-noising weak bio-signals having a relatively low signal to noise ratio utilizes an iterative process of wavelet de-noising a data set comprised of a new set of frames of wavelet coefficients partially generated through a cyclic shift algorithm. The method preferably operates on a data set having 2N frames, and the iteration is performed N?1 times. The resultant wavelet coefficients are then linearly averaged and an inverse discrete wavelet transform is performed to arrive at the de-noised original signal. The method is preferably carried out in a digital processor.
    Type: Application
    Filed: May 30, 2006
    Publication date: October 19, 2006
    Applicant: EVEREST BIOMEDICAL INSTRUMENTS COMPANY
    Inventors: Elvir Causevic, Eldar Causevic, Mladen Wickerhauser
  • Fast wavelet estimation of weak bio-signals using novel algorithms for generating multiple additional data frames
    Patent number: 7054454
    Abstract: A method and apparatus for de-noising weak bio-signals having a relatively low signal to noise ratio utilizes an iterative process of wavelet de-noising a data set comprised of a new set of frames of wavelet coefficients partially generated through a cyclic shift algorithm. The method preferably operates on a data set having 2N frames, and the iteration is performed N?1 times. The resultant wavelet coefficients are then linearly averaged and an inverse discrete wavelet transform is performed to arrive at the de-noised original signal. The method is preferably carried out in a digital processor.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: May 30, 2006
    Assignee: Everest Biomedical Instruments Company
    Inventors: Elvir Causevic, Eldar Causevic, Mladen Victor Wickerhauser