Patents by Inventor Frans Martin Coetzee

Frans Martin Coetzee 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).

  • Adaptive filtering of physiological signals using a modeled synthetic reference signal
    Patent number: 6135952
    Abstract: An adaptive filtering method and apparatus for reducing the level of an undesired noise component in an acquired physiological signal having a desired signal component. The acquired physiological signal is applied to one input of the adaptive filter, and a synthetic reference signal that is modeled so as to exhibit a correlation with the desired signal component is applied to another input of the adaptive filter. Thereafter, in a feedback manner, the adaptive filter iteratively adjusts the modeled synthetic reference signal so as to progressively generate a more accurate approximation of the desired signal component in the adaptive filter, which approximation becomes a reconstruction of the acquired physiological signal wherein the level of the undesired noise component is reduced.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: October 24, 2000
    Assignee: Siemens Corporate Research, Inc.
    Inventor: Frans Martin Coetzee
  • Method and apparatus for adaptively reducing the level of noise in an acquired signal
    Patent number: 5924980
    Abstract: An adaptive filtering method and apparatus for reducing the level of an undesired noise component in an acquired physiological signal having a desired signal component. The acquired physiological signal is applied to one input of the adaptive filter, and a synthetic reference signal that is modeled so as to exhibit a correlation with the desired signal component is applied to another input of the adaptive filter. Thereafter, in a feedback manner, the adaptive filter iteratively adjusts the modeled synthetic reference signal so as to progressively generate a more accurate approximation of the desired signal component in the adaptive filter, which approximation becomes a reconstruction of the acquired physiological signal wherein the level of the undesired noise component is reduced.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: July 20, 1999
    Assignee: Siemens Corporate Research, Inc.
    Inventor: Frans Martin Coetzee