Patents by Inventor Luther L. Barber

Luther L. Barber 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).

  • User interface for spectrometer
    Patent number: 5760785
    Abstract: A method for graphically forming a difference spectrum from a sample spectrum and a reference spectrum on a computer system includes displaying an initial difference spectrum on the display the initial difference spectrum being equal to the sample spectrum, selecting a data point in the initial difference spectrum, having an associated wave number, with a relative pointing device on the display, moving the data point a measurable amount on the display with the relative pointing device, determining a scaling factor in response to the measurable amount and to a data point in the reference spectrum having the same associated wave number, scaling each data point in the reference spectrum by the scaling factor to form a scaled reference spectrum, determining the difference spectrum between the sample spectrum and the scaled reference spectrum, and displaying at least a portion of the difference spectrum on the display.
    Type: Grant
    Filed: January 14, 1997
    Date of Patent: June 2, 1998
    Assignee: BioRad Laboratories
    Inventors: Luther L. Barber, Mark L. Olson, Paul V. Carter
  • User interface for spectrometer
    Patent number: 5633997
    Abstract: A method for graphically forming a difference spectrum from a sample spectrum and a reference spectrum on a computer system includes displaying an initial difference spectrum on the display the initial difference spectrum being equal to the sample spectrum, selecting a data point in the initial difference spectrum, having an associated wave number, with a relative pointing device on the display, moving the data point a measurable amount on the display with the relative pointing device, determining a scaling factor in response to the measurable amount and to a data point in the reference spectrum having the same associated wave number, scaling each data point in the reference spectrum by the scaling factor to form a scaled reference spectrum, determining the difference spectrum between the sample spectrum and the scaled reference spectrum, and displaying at least a portion of the difference spectrum on the display.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: May 27, 1997
    Assignee: Bio-Rad Laboratories
    Inventors: Luther L. Barber, Mark L. Olson, Paul V. Carter
  • User interface for spectrometer
    Patent number: 5579462
    Abstract: A method for graphically forming a difference spectrum from a sample spectrum and a reference spectrum on a computer system includes displaying an initial difference spectrum on the display the initial difference spectrum being equal to the sample spectrum, selecting a data point in the initial difference spectrum, having an associated wave number, with a relative pointing device on the display, moving the data point a measurable amount on the display with the relative pointing device, determining a scaling factor in response to the measurable amount and to a data point in the reference spectrum having the same associated wave number, scaling each data point in the reference spectrum by the scaling factor to form a scaled reference spectrum, determining the difference spectrum between the sample spectrum and the scaled reference spectrum, and displaying at least a portion of the difference spectrum on the display.
    Type: Grant
    Filed: November 3, 1994
    Date of Patent: November 26, 1996
    Assignee: Bio-Rad Laboratories
    Inventors: Luther L. Barber, Mark L. Olson, Paul V. Carter