Patents by Inventor John Juhasz

John Juhasz 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).

  • LED signature elimination in specular-mode LED illumination having a light diffuser between an illuminator array and an image bearing surface
    Patent number: 7544923
    Abstract: A system for detecting reflectance from an image bearing surface in a printer or electronic copier includes an illuminator array, positioned adjacent to the image bearing surface, comprising a plurality of discrete illuminator elements that are spaced in a linear arrangement; a light diffuser positioned between the illuminator array and the image bearing surface, the light diffuser being positioned with respect to the illuminator array to receive the light beams emitted by the illuminator elements and to diffuse the light beams for transmission to the image bearing surface at an incidence angle; and a linear sensor array positioned adjacent to the image bearing surface such that specular and diffuse portions of the light beams reflecting off the image bearing surface at a reflectance angle bearing are received by the sensors.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: June 9, 2009
    Assignee: Xerox Corporation
    Inventors: Robert Herloski, Douglas Proctor, John Juhasz, Eric Dudley
  • Image sensor module architecture
    Publication number: 20060219790
    Abstract: Image sensor module architecture provides flexible mounting of illuminators in an imaging apparatus with flexible fasteners. The architecture involves one or more LED-based illuminators that may be mounted adjustably to provide high intensity and uniform profile luminescence. The supporting imaging and electronic circuit components are quickly assembled and disassembled from the image sensor module by using a flexible multi-function clip having multiple segments for holding multiple objects together.
    Type: Application
    Filed: March 31, 2005
    Publication date: October 5, 2006
    Inventors: Kraig Quinn, Douglas Proctor, Robert Herloski, John Juhasz, Charles Urso, Frederick Hayes
  • Document illuminator
    Publication number: 20060109675
    Abstract: A document illuminator comprising a light-transmissive element having an embedded side emitting LED fitted in a cavity formed therein. The light-transmissive element is formed with one or more optical notches and is totally encased in a white surround to yield total internal reflection of the light rays emanating from the LED. The reflected light rays are collected at an aperture which in turn transmits high power and highly uniform illumination profile to illuminate a document.
    Type: Application
    Filed: November 23, 2004
    Publication date: May 25, 2006
    Inventors: Robert Herloski, John Juhasz, Douglas Proctor, Charles Urso
  • Rod replenishment system for use in single crystal silicon production
    Patent number: 6835247
    Abstract: A system is disclosed for efficient utilization of charge replenishment rods in Czochralski silicon crystal growing processes.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: December 28, 2004
    Assignee: Advanced Silicon Materials LLC
    Inventors: Henry D. Wood, John Peter Hill, Jay Curtis Nelson, William John Juhasz, Jr., Howard J. Dawson
  • Rod replenishment system for use in single crystal silicon production
    Publication number: 20020108557
    Abstract: A system is disclosed for efficient utilization of charge replenishment rods in Czochralski silicon crystal growing processes.
    Type: Application
    Filed: October 26, 2001
    Publication date: August 15, 2002
    Inventors: Henry D. Wood, John Peter Hill, Jay Curtis Nelson, William John Juhasz, Howard J. Dawson
  • Method for increasing charge size for single crystal silicon production
    Publication number: 20020108558
    Abstract: A system is disclosed for efficient utilization of charge replenishment rods in Czochralski silicon crystal growing processes.
    Type: Application
    Filed: October 5, 2001
    Publication date: August 15, 2002
    Inventors: John Peter Hill, Jay Curtis Nelson, William John Juhasz, Henry Dare Wood