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).
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Patent number: 11061872Abstract: 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: GrantFiled: October 16, 2018Date of Patent: July 13, 2021Assignee: International Business Machines CorporationInventors: Anthony Castrati, Gregory Chatham, Balakrisna Kolla, Thatta V. Premnath, Thomas J. Reedy, Jordan S. Simpson, Adrian Vrouwenvelder
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Publication number: 20200117727Abstract: 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: ApplicationFiled: October 16, 2018Publication date: April 16, 2020Inventors: Anthony Castrati, Gregory Chatham, Balakrisna Kolla, Thatta V. Premnath, Thomas J. Reedy, Jordan S. Simpson, Adrian Vrouwenvelder
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Patent number: 4806097Abstract: 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: GrantFiled: March 15, 1988Date of Patent: February 21, 1989Assignee: Colorocs CorporationInventors: 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
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Patent number: 4705385Abstract: 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: GrantFiled: November 10, 1986Date of Patent: November 10, 1987Assignee: Colorocs CorporationInventors: 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
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Patent number: 4699079Abstract: 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: GrantFiled: November 19, 1986Date of Patent: October 13, 1987Assignee: Colorocs CorporationInventors: 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
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Patent number: 4697920Abstract: 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: GrantFiled: November 10, 1986Date of Patent: October 6, 1987Assignee: Colorocs CorporationInventors: 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
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Patent number: 4652115Abstract: 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: GrantFiled: October 25, 1985Date of Patent: March 24, 1987Assignee: Colorocs CorporationInventors: 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