Patents by Inventor Markus Rudolf Silvestri

Markus Rudolf Silvestri 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).

  • Patent number: 10978169
    Abstract: A method for ensuring that a memory array such as a ferroelectric memory array is properly electrically connected. The method may be performed, for example, prior to a read or write cycle, during functional testing of the memory array, etc. In one implementation, the memory array is read and the data set including a data bit from each cell is stored in a register. A solid logic 0's pattern is written into the memory array, and each cell is read. If no cell returns a logic 1, it is determined that the memory array is properly connected and the register data values are written to the memory array. If one or more cells returns a logic 1, it is determined that the memory array is improperly connected, the register data values are written to the memory array, and the memory array is removed and reinstalled.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: April 13, 2021
    Assignee: XEROX CORPORATION
    Inventors: Markus Rudolf Silvestri, Kamran Uz Zaman, Christopher P. Caporale, Jimmy E. Kelly, John M. Scharr, Alberto Rodriguez, Dennis J. Prosser
  • Publication number: 20180268916
    Abstract: A method for ensuring that a memory array such as a ferroelectric memory array is properly electrically connected. The method may be performed, for example, prior to a read or write cycle, during functional testing of the memory array, etc. In one implementation, the memory array is read and the data set including a data bit from each cell is stored in a register. A solid logic 0's pattern is written into the memory array, and each cell is read. If no cell returns a logic 1, it is determined that the memory array is properly connected and the register data values are written to the memory array. If one or more cells returns a logic 1, it is determined that the memory array is improperly connected, the register data values are written to the memory array, and the memory array is removed and reinstalled.
    Type: Application
    Filed: March 17, 2017
    Publication date: September 20, 2018
    Applicant: XEROX CORPORATION
    Inventors: Markus Rudolf Silvestri, Kamran Uz Zaman, Christopher P. Caporale, Jimmy E. Kelly, John M. Scharr, Alberto Rodriguez, Dennis J. Prosser
  • Patent number: 7575838
    Abstract: An imaging member including a substrate; thereover a charge generation layer comprising a thiophosphate; and at least one charge transport layer positioned on the charge generation layer.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: August 18, 2009
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Geoffrey M. T. Foley, Satchidanand Mishra, Liang-bih Lin, Anthony M. Horgan, Yonn K. Rasmussen, Kathleen M. Carmichael, Edward F. Grabowski, Markus Rudolf Silvestri
  • Patent number: 7424250
    Abstract: A ghost removing device for a marking apparatus includes a photoreceptor, a primary charging device, an erase light generating device to generate an erase light when activated, a voltage source to supply a charge voltage to the primary charging device, and a controller configured to control the at least one voltage source to supply the charge voltage to the primary charging device and to activate the erase light generating device substantially simultaneously after transfer of a toned image within a marking cycle. A ghost removing method for a marking device with a photoreceptor, including performing a partial print cycle, applying an erase light to the photoreceptor, and applying a charge voltage to the photoreceptor, wherein the erase light and the charge voltage are applied to the photoreceptor substantially simultaneously after completion of the partial cycle.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: September 9, 2008
    Assignee: Xerox Corporation
    Inventors: James M. Markovics, Marc John Livecchi, Edward Charles Savage, Gary Allan Batt, Markus Rudolf Silvestri
  • Publication number: 20080008948
    Abstract: An imaging member including a substrate; thereover a charge generation layer comprising a thiophosphate; and at least one charge transport layer positioned on the charge generation layer.
    Type: Application
    Filed: July 6, 2006
    Publication date: January 10, 2008
    Inventors: Jin Wu, Geoffrey M.T. Foley, Satchidanand Mishra, Liang-bih Lin, Anthony M. Horgan, Yonn K. Rasmussen, Kathleen M. Carmichael, Edward F. Grabowski, Markus Rudolf Silvestri
  • Patent number: 7298983
    Abstract: The amount of lateral charge migration (LCM) on a photoreceptor is quantified by measuring the average potential of a latent image formed on the photoreceptor surface. The surface is first uniformly charged, then exposed a first time to an image. After a waiting period during which LCM may occur, the surface is exposed a second time to the image. After another waiting period, the average potential is measured. The amount of LCM may be quantified by varying the waiting periods.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: November 20, 2007
    Assignee: Xerox Corporation
    Inventors: Markus Rudolf Silvestri, Surendar Jeyadev, Satchidanand Mishra, M. John Hinckel, Edward Domm, James M. Markovics