David W Peck

US Patent:

6628668, Sep 30, 2003

Filed:

Mar 16, 1999

Appl. No.:

09/270950

Inventors:

Peter Hutzli - Acton MA
David N. Peck - Northbridge MA
Thomas A. Manning - Northboro MA

Assignee:

Fujitsu Network Communications, Inc. - Richardson TX

International Classification:

H04J 316

US Classification:

370468, 37039521, 37039541

Abstract:

A system for allocating bandwidth in a network element. The system determines whether a bandwidth allocation request is associated with a delay sensitive connection type. If so, the system selects a bandwidth allocation algorithm from a first set of bandwidth allocation algorithms. Otherwise, the system selects a bandwidth allocation algorithm from a second set of bandwidth allocation algorithms. The size of the bandwidth allocation request may be examined when selecting which bandwidth allocation algorithm to use. The system may round up the size of the bandwidth allocation request to a predetermined value. The selected bandwidth allocation algorithm may reserve slots in a bandwidth allocation table. Reserved slots that are equally spaced in the bandwidth allocation table avoid undue delays in servicing an associated connection. A binary tree representation of the table is described, wherein leaves of the binary tree correspond to individual table slots.

US Patent:

7042839, May 9, 2006

Filed:

Feb 7, 2002

Appl. No.:

10/071712

Inventors:

Mark A. W. Stewart - Acton MA, US
David Peck - Northbridge MA, US

Assignee:

Fujitsu Limited - Kanagawa-ken

International Classification:

H04L 1/22

US Classification:

370227, 370228, 398 5

Abstract:

A scalable protection method for connection oriented networks includes a source, a destination, and primary nodes interconnected by working path segments between the source and destination. A point-to-multipoint connection with multiple destinations and additional primary nodes is also supported. Each of a number of backup nodes is interconnected with an associated primary node by pre-provisioned shunt segments, and the backup nodes are interconnected among themselves by pre-provisioned protection path segments. Upon occurrence of a failure, the primary node upstream of the failure directs input traffic to a shunt segment, and the backup node associated with the upstream primary node directs traffic from the shunt segment to an output protection segment. Downstream of the failure, a backup node directs traffic from an input protection segment to a shunt segment, and the primary node associated with the backup node directs the traffic from the shunt segment to a downstream working segment. In this manner, traffic is routed around failures via local switching operations.

US Patent:

20070065844, Mar 22, 2007

Filed:

Jun 8, 2006

Appl. No.:

11/449155

Inventors:

Todd Golub - Newton MA, US
Justin Lamb - Cambridge MA, US
David Peck - Framingham MA, US
Jun Lu - Medford MA, US
Eric Miska - Cambridge, GB

Assignee:

Massachusetts Institute of Technology - Cambridge MA
Dana-Farber Cancer Institute, Inc., - Boston MA

International Classification:

C12Q 1/68
C12P 19/34

US Classification:

435006000, 435091200

Abstract:

The present invention is directed to novel high-throughput, low-cost, and flexible solution-based methods for RNA expression profiling, including expression of microRNAs and mRNAs.

US Patent:

20110015080, Jan 20, 2011

Filed:

Aug 27, 2010

Appl. No.:

12/870126

Inventors:

Todd R. Golub - Newton MA, US
Justin Lamb - Cambridge MA, US
David Peck - Framingham MA, US
Jun Lu - Medford MA, US
Eric Alexander Miska - Cambridge, GB

Assignee:

MASSACHUSETTS INSTITUTE OF TECHNOLOGY - Cambridge MA
DANA-FARBER CANCER INSTITUTE, INC. - Boston MA

International Classification:

C40B 20/00
C40B 30/04
C40B 30/00
C40B 40/00

US Classification:

506 2, 506 9, 506 7, 506 13

Abstract:

The present invention is directed to novel high-throughput, low-cost, and flexible solution-based methods for RNA expression profiling, including expression of microRNAs and mRNAs.

US Patent:

20130090254, Apr 11, 2013

Filed:

Oct 5, 2012

Appl. No.:

13/646294

Inventors:

Massachusetts Institute Of Technology - Cambridge MA, US
Todd R. Golub - Newton MA, US
Aravind Subramanian - Cambridge MA, US
David D. Peck - Framingham MA, US

Assignee:

Massachusetts Institute Of Technology - Cambridge MA

International Classification:

C12Q 1/68
G06F 19/24
G06F 19/20

US Classification:

506 9, 506 16, 702 20

Abstract:

The present invention provides compositions and methods for making and using a transcriptome-wide gene-expression profiling platform that measures the expression levels of only a select subset of the total number of transcripts. Because gene expression is believed to be highly correlated, direct measurement of a small number (for example, 1,000) of appropriately-selected transcripts allows the expression levels of the remainder to be inferred. The present invention, therefore, has the potential to reduce the cost and increase the throughput of full-transcriptome gene-expression profiling relative to the well-known conventional approaches that require all transcripts to be measured.

US Patent:

61987255, Mar 6, 2001

Filed:

Mar 16, 1999

Appl. No.:

9/270574

Inventors:

Robert Constantin - Cambridge MA
David E. Hammond - Bedford NH
David N. Peck - Northbridge MA
Salma Abu-Ayyash - Cambridge MA
Stephen R. Veit - Chesterfield MO
Thomas A. Manning - Northboro MA

Assignee:

Fujitsu Network Communications, Inc. - Richardson TX

International Classification:

H04L 1228
H04L 1256

US Classification:

370235

Abstract:

A system for allocating resources at network elements along a path through a communications network. Resources are allocated at a network element along the path in response to a connection request message. The delay budget is the minimum of a calculated cell transfer delay and a calculated cell delay variation. The calculated cell transfer delay is determined by finding a difference between a target end to end cell delay and an accumulated cell delay, and then dividing that difference by a number of network elements remaining in the path between the network element and the end of the path. To determine the calculated cell delay variation, the network element first finds a difference between the Max CDV QoS parameter and the sum of the accumulated cell delay variation and the switching delay for the network element. The calculated cell delay variation is then equal to that difference divided by the number of network elements remaining in the path between the network element and the end of the path. The target end to end cell delay is for example determined by the first network element in the path as equal to the Max CTD QoS parameter minus the end to end link propagation delay for the path and the link propagation delay for the incoming link to the first network element over which the message was received.

US Patent:

58225404, Oct 13, 1998

Filed:

Jul 18, 1996

Appl. No.:

8/683791

Inventors:

Stephen A. Caldara - Sudbury MA
Stephen A. Hauser - Burlington MA
Thomas A. Manning - Northboro MA
David N. Peck - Marlborough MA

Assignee:

Fujitsu Network Communications, Inc. - Richardson TX
Fujitsu Limited - Kawasaki

International Classification:

G06F 1300

US Classification:

39520066

Abstract:

The invention comprises a method and apparatus for discarding frames in a communications device. In accordance with the method of the invention, a plurality of cells are received representing a plurality of frames wherein each cell comprises a data portion and a header portion including a cell loss priority indicator. At least some of the cells are stored in a buffer. It is determined if the number of cells in the buffer exceeds a first threshold when a first cell including an end of file marker is received. A series of cells received between the first cell and a second cell are discarded if the first threshold was exceeded in the determining step and if the cell loss priority indicator for a cell in the series of cells is set to a first state. The second cell comprises a cell including an end of file marker.

US Patent:

20200347444, Nov 5, 2020

Filed:

Feb 18, 2020

Appl. No.:

16/794036

Inventors:

- CAMBRIDGE MA, US
- BOSTON MA, US
DAVID D. PECK - CAMBRIDGE MA, US

Assignee:

MASSACHUSETTS INSTITUTE OF TECHNOLOGY - CAMBRIDGE MA
DANA-FARBER CANCER INSTITUTE, INC. - BOSTON MA
THE BROAD INSTITUTE, INC. - CAMBRIDGE MA

International Classification:

C12Q 1/6837
G16B 25/00
G16B 40/00
C12Q 1/6809

Abstract:

The present invention provides compositions and methods for making and using a transcriptome-wide gene-expression profiling platform that measures the expression levels of only a select subset of the total number of transcripts. Because gene expression is believed to be highly correlated, direct measurement of a small number (for example, 1,000) of appropriately-selected transcripts allows the expression levels of the remainder to be inferred. The present invention, therefore, has the potential to reduce the cost and increase the throughput of full-transcriptome gene-expression profiling relative to the well-known conventional approaches that require all transcripts to be measured.