Patents by Inventor Dan Cameron, Jr.

Dan Cameron, 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).

  • Facsimile dynamic thresholding apparatus and method of use thereof
    Patent number: 5455873
    Abstract: A facsimile system for scanning a graphic image to produce a stream of output bits representative of an m.times.n array of picture elements of the image, each output bit being corrected to compensate for the average tone of a subarray of surrounding picture elements. The average tone is measured by a count of those gray levels, representative of the picture elements of the subarray, that exceed a nominal threshold. Thus the tone of the subarray dynamically adjusts the threshold of the gray level to output bit conversion of each picture element.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: October 3, 1995
    Assignee: Information International, Inc.
    Inventor: Dan Cameron, Jr.