Patents by Inventor Dana Gregory

Dana Gregory 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 and apparatus for calibrating a color measurement device
    Patent number: 8717567
    Abstract: One embodiment of a method for calibrating a test color measurement device in conjunction with an emissive display includes measuring spectral sensitivities of at least four channels of a more-than-three-channel sensor in the test color measurement device, linearly regressing the spectral sensitivities to a least-square best fit to Commission International de l'Éclairage (CIE) color matching functions, wherein the linearly regressing is performed using a weighting function that is based on a square root of a spectral power distribution characteristic of the emissive display or of a type of the emissive display, and computing a set of initial fitting coefficient values from the linearly regressing.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: May 6, 2014
    Assignee: Datacolor Holding AG
    Inventors: Colman Shannon, Dana Gregory
  • METHOD AND APPARATUS FOR CALIBRATING A COLOR MEASUREMENT DEVICE
    Publication number: 20130050703
    Abstract: One embodiment of a method for calibrating a test color measurement device in conjunction with an emissive display includes measuring spectral sensitivities of at least four channels of a more-than-three-channel sensor in the test color measurement device, linearly regressing the spectral sensitivities to a least-square best fit to Commission International de l'Éclairage (CIE) color matching functions, wherein the linearly regressing is performed using a weighting function that is based on a square root of a spectral power distribution characteristic of the emissive display or of a type of the emissive display, and computing a set of initial fitting coefficient values from the linearly regressing.
    Type: Application
    Filed: August 31, 2011
    Publication date: February 28, 2013
    Inventors: Colman Shannon, Dana Gregory