Patents by Inventor Gregory A. Chatham

Gregory A. Chatham 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: 11061872
    Abstract: Mechanisms are provided for integrating a legacy static data storage system with an event based data storage system. Catch-up logic generates, for pre-existing legacy data in the legacy static data storage system, catch-up events for integrating the legacy data in the event based data storage system. A trigger processor generates, at approximately a same time that the catch-up events are generated, triggered events in response to one or more database triggers of the event based data storage system being activated. Both the catch-up events and the one or more triggered events are stored in an event log data structure. An event log monitor processes the catch-up events in the event log data structure to integrate the pre-existing legacy data into the event based data storage system. The event log monitor processes the one or more triggered events after all catch-up events in the event log data structure have been processed.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: July 13, 2021
    Assignee: International Business Machines Corporation
    Inventors: Anthony Castrati, Gregory Chatham, Balakrisna Kolla, Thatta V. Premnath, Thomas J. Reedy, Jordan S. Simpson, Adrian Vrouwenvelder
  • Publication number: 20200117727
    Abstract: Mechanisms are provided for integrating a legacy static data storage system with an event based data storage system. Catch-up logic generates, for pre-existing legacy data in the legacy static data storage system, catch-up events for integrating the legacy data in the event based data storage system. A trigger processor generates, at approximately a same time that the catch-up events are generated, triggered events in response to one or more database triggers of the event based data storage system being activated. Both the catch-up events and the one or more triggered events are stored in an event log data structure. An event log monitor processes the catch-up events in the event log data structure to integrate the pre-existing legacy data into the event based data storage system. The event log monitor processes the one or more triggered events after all catch-up events in the event log data structure have been processed.
    Type: Application
    Filed: October 16, 2018
    Publication date: April 16, 2020
    Inventors: Anthony Castrati, Gregory Chatham, Balakrisna Kolla, Thatta V. Premnath, Thomas J. Reedy, Jordan S. Simpson, Adrian Vrouwenvelder
  • Patent number: 4806097
    Abstract: An improved full color electrophotographic print engine using flexible belts to carry a photosensitive electrostatic image developer and a transfer belt for building up composite developed images. Each belt, and an optical scanner, are driven by mechanically independent motors which are synchronized by an electronic digital controller implementing precise servos. The use of the flexible belts allows the machine to be relatively inexpensive, very small compared to previous full color print engines, and yet maintain precise registration of color composite images. An improved fuser mechanism with increased dwell time at constant machine speed is also shown. The fuser includes a pair of spaced-apart rollers, both of which urge a sheet of image receptor against the heated roller over a predetermined angular portion of the roller. The machine is specifically designed to be used interchangeably with an optical bench source as a copier or with a laser bench as a laser printer.
    Type: Grant
    Filed: March 15, 1988
    Date of Patent: February 21, 1989
    Assignee: Colorocs Corporation
    Inventors: Charles S. Palm, Danny L. Slayton, Khosrow Lak, Peter F. Sampson, David R. Davis, Maurice S. Wheatley, Jr., Gregory A. Chatham, Wayne C. Jones, Kirk W. Charles, Anthony J. Ireland
  • Patent number: 4705385
    Abstract: An improved full color electrophotographic print engine using flexible belts to carry a photosensitive electrostatic image developer and a transfer belt for building up composite developed images. Each belt, and an optical scanner, are driven by mechanically independent motors which are synchronized by an electronic digital controller implementing precise servos. The use of the flexible belts allows the machine to be relatively inexpensive, very small compared to previous full color print engines, and yet maintain precise registration of color composite images. An improved fuser mechanism with increased dwell time at constant machine speed is also shown. The fuser includes a pair of spaced-apart rollers, both of which urge a sheet of image receptor against the heated roller over a predetermined angular portion of the roller. The machine is specifically designed to be used interchangeably with an optical bench source as a copier or with a laser bench as a laser printer.
    Type: Grant
    Filed: November 10, 1986
    Date of Patent: November 10, 1987
    Assignee: Colorocs Corporation
    Inventors: Charles S. Palm, Danny L. Slayton, Khosrow Lak, Peter F. Sampson, David R. Davis, Maurice S. Wheatley, Jr., Gregory A. Chatham, Wayne C. Jones, Kirk W. Charles, Anthony J. Ireland
  • Patent number: 4699079
    Abstract: An improved full color electrophotographic print engine using flexible belts to carry a photosensitive electrostatic image developer and a transfer belt for building up composite developed images. Each belt, and an optical scanner, are driven by mechanically independent motors which are synchronized by an electronic digital controller implementing precise servos. The use of the flexible belts allows the machine to be relatively inexpensive, very small compared to previous full color print engines, and yet maintain precise registration of color composite images. An improved fuser mechanism with increased dwell time at constant machine speed is also shown. The fuser includes a pair of spaced-apart rollers, both of which urge a sheet of image receptor against the heated roller over a predetermined angular portion of the roller. The machine is specifically designed to be used interchangeably with an optical bench source as a copier or with a laser bench as a laser printer.
    Type: Grant
    Filed: November 19, 1986
    Date of Patent: October 13, 1987
    Assignee: Colorocs Corporation
    Inventors: Charles S. Palm, Danny L. Slayton, Khosrow Lak, Peter F. Sampson, David R. Davis, Maurice S. Wheatley, Jr., Gregory A. Chatham, Wayne C. Jones, Kirk W. Charles, Anthony J. Ireland
  • Patent number: 4697920
    Abstract: An improved full color electrophotographic print engine using flexible belts to carry a photosensitive electrostatic image developer and a transfer belt for building up composite developed images. Each belt, and an optical scanner, are driven by mechanically independent motors which are synchronized by an electronic digital controller implementing precise servos. The use of the flexible belts allows the machine to be relatively inexpensive, very small compared to previous full color print engines, and yet maintain precise registration of color composite images. An improved fuser mechanism with increased dwell time at constant machine speed is also shown. The fuser includes a pair of spaced-apart rollers, both of which urge a sheet of image receptor against the heated roller over a predetermined angular portion of the roller. The machine is specifically designed to be used interchangeably with an optical bench source as a copier or with a laser bench as a laser printer.
    Type: Grant
    Filed: November 10, 1986
    Date of Patent: October 6, 1987
    Assignee: Colorocs Corporation
    Inventors: Charles S. Palm, Danny L. Slayton, Khosrow Lak, Peter F. Sampson, David R. Davis, Maurice S. Wheatley, Jr., Gregory A. Chatham, Wayne C. Jones, Kirk W. Charles, Anthony J. Ireland
  • Patent number: 4652115
    Abstract: An improved full color electrophotographic print engine using flexible belts to carry a photosensitive electrostatic image developer and a transfer belt for building up composite developed images. Each belt, and an optical scanner, are driven by mechanically independent motors which are synchronized by an electronic digital controller implementing precise servos. The use of the flexible belts allows the machine to be relatively inexpensive, very small compared to previous full color print engines, and yet maintain precise registration of color composite images. An improved fuser mechanism with increased dwell time at constant machine speed is also shown. The fuser includes a pair of spaced-apart rollers, both of which urge a sheet of image receptor against the heated roller over a predetermined angular portion of the roller. The machine is specifically designed to be used interchangeably with an optical bench source as a copier or with a laser bench as a laser printer.
    Type: Grant
    Filed: October 25, 1985
    Date of Patent: March 24, 1987
    Assignee: Colorocs Corporation
    Inventors: Charles S. Palm, Danny L. Slayton, Khosrow Lak, Peter F. Sampson, David R. Davis, Maurice S. Wheatley, Jr., Gregory A. Chatham, Wayne C. Jones, Kirk W. Charles, Anthony J. Ireland