Shawn J Gallagher

US Patent:

7183554, Feb 27, 2007

Filed:

Apr 25, 2005

Appl. No.:

11/113694

Inventors:

Shawn P. Gallagher - Attleboro MA, US
Richard C. Lanza - Brookline MA, US

Assignee:

Massachusetts Institute of Technology - Cambridge MA

International Classification:

G01T 1/00

US Classification:

2503581

Abstract:

A radiation detection system that measures radiation (e. g. , signature energy-level gamma radiation and neutrons) is employed aboard a ship or other transport vehicle along with conventional cargo to monitor for the presence of a fissile material, as would be found in a nuclear weapon, or for the presence of other sources of radiation. The detection system can be used over the course of the cargo transport, thereby enabling finely tuned monitoring for fissile material across distances of many meters extending through surrounding cargo containers. Because the system can be utilized during a ship's transport, a positive detection of fissile material can be made and acted upon while the ship is still at sea far from the destination port, where detonation of a nuclear weapon could have catastrophic consequences.

US Patent:

7369500, May 6, 2008

Filed:

Jun 30, 2003

Appl. No.:

10/608215

Inventors:

Shawn Gallagher - Chelmsford MA, US
Stephen Branam - Leominster MA, US
Thomas A. Lemaire - Acton MA, US
Michael E. Lipman - Harvard MA, US
Ryan Ross - Westford MA, US

Assignee:

Juniper Networks, Inc. - Sunnyvale CA

International Classification:

H04L 12/26
G06F 15/16

US Classification:

370235, 370412, 709235

Abstract:

A buffer memory may be configured to temporarily store data in a number of queues. A processor may be configured to measure a fullness of the buffer memory. The processor may also be configured to assign sizes to the number of queues based on the fullness of the buffer memory. The processor may also adjust thresholds of drop profiles associated with the number of queues based on the sizes assigned to the number of queues.

US Patent:

7738375, Jun 15, 2010

Filed:

Aug 19, 2005

Appl. No.:

11/206786

Inventors:

Vitali Vinokour - Arlington MA, US
Shawn Gallagher - Chelmsford MA, US
Daniel K. Siu - Westford MA, US
Thomas Lemaire - Acton MA, US

Assignee:

Juniper Networks, Inc. - Sunnyvale CA

International Classification:

H04L 12/56

US Classification:

370232, 370233, 370468, 3703951

Abstract:

A method for sharing an aggregate bandwidth among a group of traffic classes may include allocating a portion of the aggregate bandwidth to one of the group of traffic classes having a first priority associated therewith, where the allocated portion is referred to as a first bandwidth. The method may include allocating an unused portion of the aggregate bandwidth to a second one of the group of traffic classes having a second priority associated therewith in conjunction with a parameter associated with a downstream device.

US Patent:

7990868, Aug 2, 2011

Filed:

Mar 24, 2008

Appl. No.:

12/054019

Inventors:

Shawn Gallagher - Chelmsford MA, US
Stephen Branam - Leominster MA, US
Thomas A LeMaire - Aeton MA, US
Michael E Lipman - Harvard MA, US
Ryan Ross - Westford MA, US

Assignee:

Juniper Networks, Inc. - Sunnyvale CA

International Classification:

H04L 12/26
G06F 15/16

US Classification:

370235, 370230, 370412, 709235

Abstract:

A buffer memory may be configured to temporarily store data in a number of queues. A processor may be configured to measure a fullness of the buffer memory. The processor may also be configured to assign sizes to the number of queues based on the fullness of the buffer memory. The processor may also adjust thresholds of drop profiles associated with the number of queues based on the sizes assigned to the number of queues.

US Patent:

8218437, Jul 10, 2012

Filed:

Apr 30, 2010

Appl. No.:

12/771916

Inventors:

Vitali Vinokour - Arlington MA, US
Shawn Gallagher - Chelmsford MA, US
Daniel K. Siu - Westford MA, US
Thomas A. Lemaire - Acton MA, US

Assignee:

Juniper Networks, Inc. - Sunnyvale CA

International Classification:

H04J 3/14

US Classification:

370230, 370235

Abstract:

A method for sharing an aggregate bandwidth among a group of traffic classes may include allocating a portion of the aggregate bandwidth to one of the group of traffic classes having a first priority associated therewith, where the allocated portion is referred to as a first bandwidth. The method may include allocating an unused portion of the aggregate bandwidth to a second one of the group of traffic classes having a second priority associated therewith in conjunction with a parameter associated with a downstream device.

US Patent:

56757352, Oct 7, 1997

Filed:

Feb 29, 1996

Appl. No.:

8/608911

Inventors:

Shawn Gallagher - Leominster MA
James Scott Hiscock - Harvard MA
Dahai Ding - Leominster MA
Scott D'Edwine Lawrence - Concord MA

Assignee:

Digital Equipment Corporation - Maynard MA

International Classification:

G06F 1300

US Classification:

39520001

Abstract:

A system for interconnecting line cards attached to a networking hub is disclosed. The disclosed system operates by forming backplane networks between the line cards using shared data path resources within the hub. Each line card attached with the hub describes its hub internal networking characteristics and capabilities. A hub management agent obtains the specific capabilities and characteristics of each line card attached to the networking hub, from each of the line cards. The characteristics and capabilities of each line card include which of the shared data path resources are accessible to the line card, and how the line card is able to operate on those accessible shared data path resources. The capabilities and characteristics of the line cards are obtained by the management agent requesting each line card for the information. The request is initiated by a triggering event, for example power-up of the networking hub or attachment of a new line card to the networking hub.

US Patent:

59238518, Jul 13, 1999

Filed:

Oct 10, 1996

Appl. No.:

8/728569

Inventors:

Shawn Gallagher - Leominster MA
James Scott Hiscock - Harvard MA
Dahai Ding - Leominster MA
Scott D'Edwine Lawrence - Concord MA

Assignee:

Cabletron Systems, Inc. - Rochester NH

International Classification:

G06F 1300

US Classification:

39520058

Abstract:

A system for interconnecting line cards attached to a networking hub is disclosed. The disclosed system operates by forming backplane networks between the line cards using shared data path resources within the hub. Each line card attached with the hub describes its hub internal networking characteristics and capabilities. A hub management agent obtains the specific capabilities and characteristics of each line card attached to the networking hub, from each of the line cards. The characteristics and capabilities of each line card include which of the shared data path resources are accessible to the line card, and how the line card is able to operate on those accessible shared data path resources. The capabilities and characteristics of the line cards are obtained by the management agent requesting each line card for the information. The request is initiated by a triggering event, for example power-up of the networking hub or attachment of a new line card to the networking hub.

US Patent:

58092536, Sep 15, 1998

Filed:

Jul 7, 1997

Appl. No.:

8/888999

Inventors:

Shawn Gallagher - Leominster MA
James Scott Hiscock - Harvard MA
Dahai Ding - Leominster MA
Scott D'Edwine Lawrence - Concord MA

Assignee:

Cabletron Systems, Inc. - Rochester NH

International Classification:

G06F 1300

US Classification:

39520058

Abstract:

A system for interconnecting line cards attached to a networking hub is disclosed. The disclosed system operates by forming backplane networks between the line cards using shared data path resources within the hub. Each line card attached with the hub describes its hub internal networking characteristics and capabilities. A hub management agent obtains the specific capabilities and characteristics of each line card attached to the networking hub, from each of the line cards. The characteristics and capabilities of each line card include which of the shared data path resources are accessible to the line card, and how the line card is able to operate on those accessible shared data path resources. The capabilities and characteristics of the line cards are obtained by the management agent requesting each line card for the information. The request is initiated by a triggering event, for example power-up of the networking hub or attachment of a new line card to the networking hub.