Patents by Inventor David Ambrose Hsu

David Ambrose Hsu 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).

  • Method for data oscillator detection using frictionally damped harmonic oscillators
    Patent number: 9687198
    Abstract: A system and method for time-frequency analysis in which acquired signals are modeled as frictionally damped harmonic oscillators having a friction factor that is not a free parameter are provided. The friction factor is selected as a function of the frequency value of the associated oscillator, such that an increase in both temporal and spectral resolution are provided over existing time-frequency analysis methods. The friction factor is also selected to define a spectral band, within which the given oscillator can detect data oscillations. The properly selected friction factor thereby provides the analysis over a broad spectral range that can span many orders of magnitude.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: June 27, 2017
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: David Ambrose Hsu, Murielle Aline Hsu, Gregory A Worrell
  • Systems and methods for controlling cerebrospinal fluid in a subject's ventricular system
    Patent number: 8876744
    Abstract: A system for draining excess cerebrospinal fluid (CSF) from the head of a subject includes a drainage shunt and a valve assembly that selectively permits the shunt to drain CSF. The valve assembly also compensates for multiple factors that can affect the subject's intracranial pressure (ICP) and compliance, and could otherwise lead to CSF over-drainage or other undesirable conditions.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: November 4, 2014
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: David Ambrose Hsu, Bermans J Iskandar, Murielle Aline Hsu
  • Method for suppressing and reversing epileptogenesis
    Patent number: 8301257
    Abstract: A method for identifying, suppressing, and reversing epileptogenesis, which is considered to be a learned response due to brain plasticity. The method includes identifying three epileptogenic conditions, neuronal hyperexcitability, spatial overconnectivity, and temporal overconnectivity. A treatment that accounts for each of these conditions is then be administered to the subject to reverse, or “unlearn,” epilepsy.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: October 30, 2012
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: David Ambrose Hsu, Murielle Aline Hsu, John Matthew Beggs
  • Systems and Methods for Controlling Cerebrospinal Fluid in a Subject's Ventricular System
    Publication number: 20120226215
    Abstract: A system for draining excess cerebrospinal fluid (CSF) from the head of a subject includes a drainage shunt and a valve assembly that selectively permits the shunt to drain CSF. The valve assembly also compensates for multiple factors that can affect the subject's intracranial pressure (ICP) and compliance, and could otherwise lead to CSF over-drainage or other undesirable conditions.
    Type: Application
    Filed: March 4, 2011
    Publication date: September 6, 2012
    Inventors: David Ambrose Hsu, Bermans J. Iskandar, Murielle Aline Hsu
  • METHOD FOR DATA OSCILLATOR DETECTION USING FRICTIONALLY DAMPED HARMONIC OSCILLATORS
    Publication number: 20120089004
    Abstract: A system and method for time-frequency analysis in which acquired signals are modeled as frictionally damped harmonic oscillators having a friction factor that is not a free parameter are provided. The friction factor is selected as a function of the frequency value of the associated oscillator, such that an increase in both temporal and spectral resolution are provided over existing time-frequency analysis methods. The friction factor is also selected to define a spectral band, within which the given oscillator can detect data oscillations. The properly selected friction factor thereby provides the analysis over a broad spectral range that can span many orders of magnitude.
    Type: Application
    Filed: October 12, 2010
    Publication date: April 12, 2012
    Inventors: David Ambrose Hsu, Murielle Aline Hsu, Gregory A. Worrell
  • Method For Suppressing And Reversing Epileptogenesis
    Publication number: 20090264958
    Abstract: A method for identifying, suppressing, and reversing epileptogenesis, which is considered to be a learned response due to brain plasticity. The method includes identifying three epileptogenic conditions, neuronal hyperexcitability, spatial overconnectivity, and temporal overconnectivity. A treatment that accounts for each of these conditions is then be administered to the subject to reverse, or “unlearn,” epilepsy.
    Type: Application
    Filed: April 20, 2009
    Publication date: October 22, 2009
    Inventors: David Ambrose Hsu, Murielle Aline, John Matthew Beggs