Patents Assigned to OB Scientific
  • Method and apparatus for processing a physiological signal
    Patent number: 6339715
    Abstract: A signal processing method, preferably for extracting a fundamental period from a noisy, low-frequency signal, is disclosed. The signal processing method generally comprises calculating a numerical transform for a number of selected periods by multiplying signal data by discrete points of a sine and a cosine wave of varying period and summing the results. The period of the sine and cosine waves are preferably selected to have a period substantially equivalent to the period of interest when performing the transform.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: January 15, 2002
    Assignee: OB Scientific
    Inventors: Dennis E. Bahr, James L. Reuss