Patents by Inventor William K. Darrow

William K. Darrow 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).

  • CRT device light versus input signal characteristic function
    Patent number: 4862265
    Abstract: The present invention is a system and a method for measuring and then predicting the light output from a cathode ray tube device as a function of the input signal to the device. An input signal series is selected and a table is formed indicating the light output level for each signal input level. Parameters of a characteristic equation are then determined by a regression and an automatic or manual optimization process. The optimum values of these parameters (units-converter constant, gain, offset, and gamma) are then used to predict the light output from the measured device.
    Type: Grant
    Filed: September 1, 1988
    Date of Patent: August 29, 1989
    Assignee: Eastman Kodak Company
    Inventors: Richard E. Bartow, William K. Darrow, Wayne T. Hartmann