Patents by Inventor Edward E. Ewer

Edward E. Ewer 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).

  • System for selecting a compression method for image data
    Patent number: 7062100
    Abstract: In an image-data processing system, as would be found in a digital copier or scanner, a relatively quick calculation is performed to estimate a compression ratio or compression time resulting from applying a compression algorithm to an image data set. If the estimated compression ratio or compression time is determined to be unfavorable, the system is advised not to apply the compression algorithm. The method can also be used to select a type of compression algorithm, such as CCITT G4 or JBIG2, according to the requirements of the larger system.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: June 13, 2006
    Assignee: Xerox Corporation
    Inventors: Fritz F. Ebner, Daniel Davies, Edward E. Ewer, Ramesh Nagarajan
  • System for selecting a compression method for image data
    Publication number: 20040114195
    Abstract: In an image-data processing system, as would be found in a digital copier or scanner, a relatively quick calculation is performed to estimate a compression ratio or compression time resulting from applying a compression algorithm to an image data set. If the estimated compression ratio or compression time is determined to be unfavorable, the system is advised not to apply the compression algorithm. The method can also be used to select a type of compression algorithm, such as CCITT G4 or JBIG2, according to the requirements of the larger system.
    Type: Application
    Filed: December 16, 2002
    Publication date: June 17, 2004
    Applicant: Xerox Corporation
    Inventors: Fritz F. Ebner, Daniel Davies, Edward E. Ewer, Ramesh Nagarajan