Patents by Inventor Chetan Keny

Chetan Keny 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).

  • In-line image geometrics measurement via local sampling on sheets in a printing system
    Patent number: 8462380
    Abstract: This invention generally relates to accurately measuring image geometries in-line within a printing system. One or more two-dimensional array sensors may be located adjacent to a sheet of media printed with a predefined array of indicia marks so that the sensor field of view is contained within the plane of sheet transport. As the sheet is transported by the sensor, the sensors continuously record the locations of the indicia marks within its field of view. The spatial frequency of the indicia marks is arranged so that at least two indicia marks are within the field of view of the sensor at any instant for each of the process and cross-process directions. The two-dimensional array sensor can thus measure the absolute spacing between adjacent local indicia marks within the precision of the sensor construction. The cumulative spacing along each direction may then calculated to determine the overall dimensions of the indicia marks array.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: June 11, 2013
    Assignee: Xerox Corporation
    Inventors: Steven R Moore, Chetan Keny
  • IN-LINE IMAGE GEOMETRICS MEASURMENT VIA LOCAL SAMPLING ON SHEETS IN A PRINTING SYSTEM
    Publication number: 20100097620
    Abstract: This invention generally relates to accurately measuring image geometries in-line within a printing system. One or more two-dimensional array sensors may be located adjacent to a sheet of media printed with a predefined array of indicia marks so that the sensor field of view is contained within the plane of sheet transport. As the sheet is transported by the sensor, the sensors continuously record the locations of the indicia marks within its field of view. The spatial frequency of the indicia marks is arranged so that at least two indicia marks are within the field of view of the sensor at any instant for each of the process and cross-process directions. The two-dimensional array sensor can thus measure the absolute spacing between adjacent local indicia marks within the precision of the sensor construction. The cumulative spacing along each direction may then calculated to determine the overall dimensions of the indicia marks array.
    Type: Application
    Filed: October 16, 2008
    Publication date: April 22, 2010
    Applicant: Xerox Corporation
    Inventors: Steven R. MOORE, Chetan KENY
  • Finisher apparatus
    Patent number: 7673867
    Abstract: A flexible strip of low coefficient of friction material is attached to a paddle wheel hub and placed over a predetermined length of the drive side of the paddle wheel blades in order to reduce the drive force of the paddle wheel blades on the top sheet in a stack to thereby allow the accurate compiling of a greater range of curled sheets.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: March 9, 2010
    Assignee: Xerox Corporation
    Inventors: Chetan Keny, Henry T Bober, Peter Knausdorf
  • FINISHER APPARATUS
    Publication number: 20090102115
    Abstract: A flexible strip of low coefficient of friction material is attached to a paddle wheel hub and placed over a predetermined length of the drive side of the paddle wheel blades in order to reduce the drive force of the paddle wheel blades on the top sheet in a stack to thereby allow the accurate compiling of a greater range of curled sheets.
    Type: Application
    Filed: October 19, 2007
    Publication date: April 23, 2009
    Applicant: XEROX CORPORATION
    Inventors: Chetan Keny, Henry T. Bober, Peter Knausdorf