Patents by Inventor Charles N. Corfield

Charles N. Corfield 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).

  • Patent number: 5289169
    Abstract: Disclosed are text processing methods and text processing apparatus in an imaging system which images text characters and associated text functions, and specifically images text underline functions. The imaging system operates to control the appearance of rules for underlining functions, by controlling the offset (O), thickness (T) and gap (G) parameters as a function of user input values and as a function of font size (F.sub.-- size) and typeface parameters (Para.sub.-- 1 and Para.sub.-- 2). A plurality of underline algorithms including a homogeneous algorithm and a composite algorithm are provided for controlling rules.
    Type: Grant
    Filed: January 31, 1991
    Date of Patent: February 22, 1994
    Assignee: Frame Technology Corporation
    Inventors: Charles N. Corfield, Edward J. Kessler, David J. Murray, Sandra A. Sundberg