Patents by Inventor Luis F. Chaparro

Luis F. Chaparro 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).

  • COMPRESSIVE SAMPLING OF PHYSIOLOGICAL SIGNALS USING TIME-FREQUENCY DICTIONARIES BASED ON MODULATED DISCRETE PROLATE SPHEROIDAL SEQUENCES
    Publication number: 20140046208
    Abstract: A method of sampling and reconstructing an original physiological signal obtained from a subject includes acquiring a number of samples of the original physiological signal, and generating a reconstructed physiological signal using the samples and a time-frequency dictionary, the time-frequency dictionary having bases which are modulated discrete prolate spheroidal sequences.
    Type: Application
    Filed: August 8, 2013
    Publication date: February 13, 2014
    Applicant: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: Ervin Sejdic, Luis F. Chaparro
  • System for prediction of cardiac arrhythmias
    Patent number: 6308094
    Abstract: A medical device and method for predicting cardiac arrhythmias, by gathering electrocardiographic data such as intervals between heart beats (RR-series) or other signal, mathematically decomposing or compressing the signal into several elements or components that contain the most significant information and tracking the changes in the several elements. The signal may be divided into time windows, and the signals decomposed into a plurality of coefficients or components such as Karhunen Loeve Transformation (KLT) coefficients that are predictive of the occurrence of a cardiac arrhythmia. The electrocardiographic data may be generated real-time, on-line, or be prerecorded data.
    Type: Grant
    Filed: August 17, 1999
    Date of Patent: October 23, 2001
    Assignee: University of Pittsburgh of the Commonwealth System of Higher Education
    Inventors: Vladimir Shusterman, Benhur Aysin, Ilan Grave, Luis F. Chaparro, Kelley P. Anderson
  • System for prediction of life-threatening cardiac arrhythmias
    Patent number: 5967995
    Abstract: A medical device and method for predicting life-threatening cardiac arrhythmias (LTCA) by gathering electrocardiographic data such as intervals between heart beats (RR-series) or other signal, mathematically decomposing or compressing the signal into several elements or components that contain the most significant information and tracking the changes in the several elements. The signal may be divided into time windows, and the signals decomposed into a plurality of coefficients or components such as Karhunen Loeve Transformation (KLT) coefficients that are predictive of the occurrence of LTCA. The electrocardiographic data may be generated real-time, on-line, or be prerecorded data.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: October 19, 1999
    Assignee: University of Pittsburgh of the Commonwealth System of Higher Education
    Inventors: Vladimir Shusterman, Benhur Aysin, Ilan Grave, Luis F. Chaparro, Kelley P. Anderson