Bhaskar H Sengupta

US Patent:

6535487, Mar 18, 2003

Filed:

Jun 17, 1998

Appl. No.:

09/098347

Inventors:

Subir K. Biswas - Plainsboro NJ
Rauf Izmailov - Middletown NJ
Bhaskar Sengupta - Cranbury NJ

Assignee:

NEC USA, Inc. - Princeton NJ

International Classification:

H04L 114

US Classification:

3702361, 370400, 3703951

Abstract:

A technique for reducing ATM call blocking is provided that splits wideband connections into multiple low-bandwidth sub-connections and routing them independently through the network. Fragmented network bandwidth is used for supporting calls which are otherwise blocked by conventional routing. A detailed cell-level design for the split scheduling algorithms is provided. A system for implementing splitting without requiring any protocol changes within the network is provided. Such a system modifies the control plane protocols only within the end-stations.

US Patent:

8051828, Nov 8, 2011

Filed:

Dec 9, 2008

Appl. No.:

12/316030

Inventors:

Bhaskar Sengupta - Princeton Junction NJ, US
Krishnan Kumaran - Raritan NJ, US
Walter Weissman - Basking Ridge NJ, US
Randall D. Partridge - Califon NJ, US
Kouseki Sugiyama - Numazu, JP
Keiji Yoeda - Numazu, JP
Tomihisa Oda - Numazu, JP
Yoshihiro Iwashita - Mishima, JP

Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ

International Classification:

F02M 43/04
F02M 43/00

US Classification:

123304

Abstract:

A fuel management system mounted on a vehicle is operative to feed individually or a mixture of grades of relatively low, intermediate, and high autoignition temperature fuels to an associated internal combustion engine. The system includes an on board separation unit (OBS unit) for receiving and separating intermediate autoignition temperature (IAT) fuel into low and high autoignition temperature fuels, LAT and HAT, respectively. The production rate of the LAT and HAT fuels by the OBS unit is controlled to substantially match the consumption requirements of the engine at any given time for the LAT and HAT fuels.

US Patent:

20090165759, Jul 2, 2009

Filed:

Dec 19, 2008

Appl. No.:

12/316031

Inventors:

Bhaskar Sengupta - Princeton Junction NJ, US
Krishnan Kumaran - Raritan NJ, US
Walter Weissman - Basking Ridge NJ, US
Randall D. Partridge - Califon NJ, US

International Classification:

F02D 41/00
F02B 43/00

US Classification:

123575, 701103

Abstract:

A fuel management system mounted on a vehicle is operative to feed an individual grade or a mixture of grades of relatively low, intermediate, and high RON fuels, from respective tanks to an associated internal combustion engine. The system includes an on board separation unit (OBS unit) for receiving and separating intermediate RON fuel, from an IRON tank into low and high RON fuels, LRON and HRON, respectively, for delivery to LRON and HRON tanks, respectively. The production rate of the LRON and HRON fuels by the OBS unit is controlled to substantially match the consumption requirements of the engine at any given time for the LRON and HRON fuels.

US Patent:

54307325, Jul 4, 1995

Filed:

Mar 14, 1994

Appl. No.:

8/213379

Inventors:

Bhaskar Sengupta - Cranbury NJ

Assignee:

NEC USA, Inc. - Princeton NJ

International Classification:

H04B 714

US Classification:

370 951

Abstract:

A satellite communication system increases its efficiency by using adaptive pipeline polling as the control protocol. In this protocol, the earth stations are separated into active and inactive sets and a first number of slots (salary) is assigned to each active station. Additionally, periodically active stations are queried as to the length of their queues and assigned salary slots not needed by any active station are reallofted to stations with queues that exceed their assigned salary in proportion to the size of such excess. A contention period is included outside of the normal salary and bonus periods during which stations in the inactive are allowed to contend to be included in the active set.

US Patent:

53553721, Oct 11, 1994

Filed:

Aug 17, 1993

Appl. No.:

8/107542

Inventors:

Bhaskar Sengupta - Princeton Junction NJ
Shyamal Chowdhury - Durham NC

Assignee:

NEC USA, Inc. - Princeton NJ

International Classification:

H04L 1250
H04L 1254

US Classification:

370 601

Abstract:

An asynchronous transfer mode switching system uses a parallel array of switching planes, distributors for distributing cells between the switching planes, and resequencers for collecting the cells after they have been switched. To balance the loads in the output buffers of the switching planes, each distributor includes two one-cell buffers and a load matrix. The load matrix stores the state of the output buffers in the switching planes, and this information is used to decide whether to send a cell arriving at the first of the one-cell buffers to its scheduled switching plane or to store the cell in the other of the one-cell buffers until either a switching plane with a lightly loaded output buffer for the cell's destination becomes available or another later arriving cell needs to be stored there.

US Patent:

54992451, Mar 12, 1996

Filed:

Nov 1, 1994

Appl. No.:

8/332978

Inventors:

Bhaskar Sengupta - Cranbury NJ

Assignee:

NEC USA, Inc. - Princeton NJ

International Classification:

H04J 316

US Classification:

370 942

Abstract:

Methods of traffic smoothing for frames of different video sources where each video source transmits frames at fixed intervals and the network is free to decide the relative temporal spacing of video frames from different sources provide significant performance advantages. The time at which a given source begins to transmit its first frame is under the control of the network; however, thereafter, all frames from the source are transmitted at fixed intervals. Two heuristic and one optimization method control the temporal placement of the video frames from different sources in order to reduce the loss rate of the high priority cells and to minimize the smoothness index of the traffic.

US Patent:

61413194, Oct 31, 2000

Filed:

Apr 10, 1996

Appl. No.:

8/630808

Inventors:

Rajiv S. Dighe - Princeton Junction NJ
Qiang Ren - Somerset NJ
Bhaskar Sengupta - Cranbury NJ

Assignee:

NEC USA, Inc. - Princeton NJ

International Classification:

H04J 314

US Classification:

370218

Abstract:

Alternative routing schemes in high-speed networks ensure fault tolerance in the event of a link failure. An heuristic algorithm, based on maximal-flow algorithm, is first used to partition the network into parts: one part carries regular or primary traffic and another part is reserved to carry re-routed traffic in the event of a link failure. The result of applying the algorithm is used to find alternative routes for a given call at the time of call setup. The scheme can be modified to accommodate hop-court limitations and loop avoidance.

US Patent:

52766772, Jan 4, 1994

Filed:

Jun 26, 1992

Appl. No.:

7/905287

Inventors:

Gopalakrishnan Ramamurthy - Cranbury NJ
Bhaskar Sengupta - Cranbury NJ

Assignee:

NEC USA, Inc. - Princeton NJ

International Classification:

H04L 1256

US Classification:

370 60

Abstract:

To control congestion in packet switching networks, control of the traffic sent by a given station to each of the downstream nodes to which it is directly connected is effected by control of the traffic that the upstream nodes to which it is directly connected are permitted to send to it. In this regard, a predictive model is used to predict the cross traffic, one round trip delay in advance that the given station can expect. The parameters for the predictive model are obtained by measurements in real time and by the use of moving averages. Using the predicted cross traffic, the amount of controlled traffic that the proximate downstream nodes can accommodate from the given node, and the correct state of the given node, the state of the given node one round trip delay into the future is predicted. This prediction is used to schedule the amount of traffic to be sent by each of its proximate upstream nodes.