Patents by Inventor Ammal Z. Malik

Ammal Z. Malik 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 determining the size of an original image, such as in a digital copier
    Patent number: 7570394
    Abstract: An input scanner, such as used in a digital copier, accepts original documents on sheets of any number of possible sizes within a single job. The video output of the scanner is applied to an algorithm to determine the length, along a process direction, of useful image data on each sheet. From such a determination, a size of output copy sheets can be automatically selected, or the image can be automatically changed in size in subsequent processing. A prescan of the original documents is not required.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: August 4, 2009
    Assignee: Xerox Corporation
    Inventors: Xing Li, Ramesh Nagarajan, Ammal Z. Malik
  • Compression of mixed raster content (MRC) image data
    Patent number: 7190837
    Abstract: In a mixed raster content (MRC) image data format, where a separation plane is used to define portions of the image to compressed in a lossy or lossless manner, edge pixels are identified in the separation plane. Each edge pixel is modified to assume a maximum luminance and most neutral chrominance found among neighboring pixels. The modification of the edge pixel data minimizes artifacts such as fringe effects when the image data is compressed and subsequently decompressed.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: March 13, 2007
    Assignee: Xerox Corporation
    Inventors: Xing Li, Ramesh Nagarajan, Ammal Z. Malik
  • System for determining the size of an original image, such as in a digital copier
    Publication number: 20040190072
    Abstract: An input scanner, such as used in a digital copier, accepts original documents on sheets of any number of possible sizes within a single job. The video output of the scanner is applied to an algorithm to determine the length, along a process direction, of useful image data on each sheet. From such a determination, a size of output copy sheets can be automatically selected, or the image can be automatically changed in size in subsequent processing. A prescan of the original documents is not required.
    Type: Application
    Filed: March 27, 2003
    Publication date: September 30, 2004
    Applicant: Xerox Corporation
    Inventors: Xing Li, Ramesh Nagarajan, Ammal Z. Malik