Patents by Inventor Charles L. Stone, Jr.

Charles L. Stone, Jr. 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).

  • Methods and apparatus for mapping electrophysiological potentials in living subjects
    Patent number: 5357428
    Abstract: A system for mapping and/or displaying spatio-temporal features of underlying event-related neural activity involves measuring the event-related evoked potential values at a limited number of points over the region of interest, deriving a first grid of potential values at points over the area of interest representing at least a tenfold increase in the number of points by a Kriging-type of spatial statistical interpolation, and using the first grid to derive for the region of interest a second grid of points current density values by a Laplacian conversion. A plurality of second grids of current density values spaced apart in time are derived and displayed on a monitor in cartoon-type fashion to provide a cartoon-type display of the features of the event-related evoked response over the region of interest varying with time. Various other displays are possible for highlighting specific features.
    Type: Grant
    Filed: April 5, 1993
    Date of Patent: October 18, 1994
    Assignee: Micro-Tek, Inc.
    Inventor: Charles L. Stone, Jr.
  • System for interpolating surface potential values for use in calculating current density
    Patent number: 5247436
    Abstract: A system for mapping and/or displaying spatiotemporal features of underlying event-related neural activity involves measuring the event-related evoked potential values at a limited number of points over the region of interest, deriving a first grid of potential values at points over the area of interest representing at least about a five fold increase in the number of points by a Kriging-type of spatial statistical interpolation, and using the first grid to derive for the region of interest a second grid of points of current density values by a Laplacian conversion. A plurality of second grids of current density values spaced apart in time are derived and displayed on a monitor in cartoon-type fashion to provide a cartoon-type display of the features of the event-related evoked response over the region of interest varying with time. Various other displays are possible for highlighting specific features.
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: September 21, 1993
    Assignee: Micro-Tek, Inc.
    Inventor: Charles L. Stone, Jr.