Simon S Zelingher from 18 Opatut Ct, Morganville, NJ 07751, age 79, Phone: (732)5365199

Method And Apparatus For Capacity-Efficient Restoration In An Optical Communication System
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US Patent:

6587235, Jul 1, 2003
Filed:

Dec 16, 1999
Appl. No.:

09/464397
Inventors:

Sid Chaudhuri - East Brunswick NJ
Bruce Gilbert Cortez - Marlboro NJ
Simon S. Zelingher - Morganville NJ
Assignee:

ATT Corp. - New York NY
International Classification:

H04B 1008
US Classification:

359110, 359119, 359117, 359128, 359139, 359124, 359127, 385 16, 385 17, 385 24, 370228, 370225, 370216
Abstract:

A method and system provide capacity-efficient restoration within an optical fiber communication system. The system includes a plurality of nodes each interconnected by optical fibers. Each optical fiber connection between nodes includes at least three channel groups with different priority levels for restoration switching in response to a connection failure. The system maintains and restores full-capacity communication services by switching at least a portion of the channel groups from a first optical fiber connection to a second optical fiber connection system based on the priority levels assigned to the channel groups. Service reliability is effectively maintained without incurring additional costs for dedicated spare optical fiber equipment by improving idle capacity utilization.

System And Method For Service Independent Data Routing
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US Patent:

6757243, Jun 29, 2004
Filed:

May 13, 1999
Appl. No.:

09/311214
Inventors:

Sid Chaudhuri - East Brunswick NJ
Simon S. Zelingher - Morganville NJ
Assignee:

ATT Corp. - New York NY
International Classification:

G01R 3108
US Classification:

370221, 370216
Abstract:

Data are rerouted over a network having a uniform-capacity Tandem Connection by detecting a failure in a link in a path, maintaining the path through a Tandem Connection that does not include the failed link, and rerouting the data through the Tandem Connection based on information embedded in a tandem layer, and independent of the constituent payload capacities within the tandem connection.

System And Method For Service Independent Data Routing
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US Patent:

6990065, Jan 24, 2006
Filed:

Apr 2, 2004
Appl. No.:

10/816709
Inventors:

Sid Chaudhuri - East Brunswick NJ, US
Simon S. Zelingher - Morganville NJ, US
Assignee:

AT&T Corp. - New York NY
International Classification:

G01R 31/08
US Classification:

370221, 370216
Abstract:

Data are rerouted over a network having a uniform-capacity Tandem Connection by detecting a failure in a link in a path, maintaining the path through a Tandem Connection that does not include the failed link, and rerouting the data through the Tandem Connection based on information embedded in a tandem layer in the data, and independent of the constituent payload capacities within the tandem connection.

Method And Apparatus For Delaying Start Of Restoration Of Low Priority Services
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US Patent:

7298695, Nov 20, 2007
Filed:

Mar 3, 2003
Appl. No.:

10/378388
Inventors:

Bruce Gilbert Cortez - Marlboro NJ, US
Sanja Durinovic-Johri - Aberdeen NJ, US
Pravin Kumar Johri - Aberdeen NJ, US
John Paggi - Bayville NJ, US
Simon S Zelingher - Morganville NJ, US
Assignee:

AT&T Corp. - New York NY
International Classification:

H04J 1/16
US Classification:

370218, 370244, 714 2
Abstract:

The present invention relates generally to restoration of low priority services in a network. More particularly, the invention encompasses a method and an apparatus for delaying the start of the restoration of low priority services in a communication network. The invention further includes multiple schemes for restoring low priority services. The network could consist of optical, ATM, FR, or IP/MPLS switches and cross-connects.

Method And Apparatus For Capacity-Efficient Restoration In An Optical Communication System
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US Patent:

7352966, Apr 1, 2008
Filed:

Mar 25, 2003
Appl. No.:

10/396151
Inventors:

Sid Chaudhuri - East Brunswick NJ, US
Bruce Gilbert Cortez - Marlboro NJ, US
Simon S. Zelingher - Morganville NJ, US
Assignee:

AT&T Corp. - New York NY
International Classification:

G02F 1/00
US Classification:

398 5, 398 1, 398 2, 398 3, 398 4, 398 7, 398 33, 398 34, 398 45, 398 48, 398 50, 398 56, 398 57, 398 59, 398 79, 398 83, 398 17, 398 20, 398 13, 398 14, 398 10, 370216, 370217, 370225, 370227, 370228, 370242, 385 24, 385 37, 385 16, 385 17, 385 18
Abstract:

A method and system provide capacity-efficient restoration within an optical fiber communication system. The system includes a plurality of nodes each interconnected by optical fibers. Each optical fiber connection between nodes includes at least three channel groups with different priority levels for restoration switching in response to a connection failure. The system maintains and restores full-capacity communication services by switching at least a portion of the channel groups from a first optical fiber connection to a second optical fiber connection system based on the priority levels assigned to the channel groups. Service reliability is effectively maintained without incurring additional costs for dedicated spare optical fiber equipment by improving idle capacity utilization.

Scheme For Randomized Selection Of Equal Cost Links During Restoration
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US Patent:

7391732, Jun 24, 2008
Filed:

Dec 27, 2002
Appl. No.:

10/330893
Inventors:

Bruce Gilbert Cortez - Marlboro NJ, US
Sanja Durinovic-Johri - Aberdeen NJ, US
Pravin Kumar Johri - Aberdeen NJ, US
John Paggi - Bayville NJ, US
Simon S Zelingher - Morganville NJ, US
Assignee:

AT&T Corp. - New York NY
International Classification:

G08C 15/00
H04L 12/26
G06F 15/173
US Classification:

370238, 370255, 709241
Abstract:

The present invention relates generally to restoration of services in a network. More particularly, the invention encompasses a scheme for randomized selection of equal cost links during restoration in a communication network. The invention further includes multiple schemes for restoring services. The network could consist of optical, ATM, FR, or IP/MPLS switches and cross-connects.

Method And Apparatus For Delaying Start Of Restoration Of Low Priority Services
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US Patent:

7542413, Jun 2, 2009
Filed:

Oct 3, 2007
Appl. No.:

11/906634
Inventors:

Bruce Gilbert Cortez - Marlboro NJ, US
Sanja Durinovic-Johri - Aberdeen NJ, US
Pravin Kumar Johri - Aberdeen NJ, US
John Paggi - Bayville NJ, US
Simon S Zelingher - Morganville NJ, US
Assignee:

AT&T Intellectual Property II, L.P. - Reno NV
International Classification:

H04J 1/16
H04L 12/56
US Classification:

370216, 370241
Abstract:

The present invention relates generally to restoration of low priority services in a network. More particularly, the invention encompasses a method and an apparatus for delaying the start of the restoration of low priority services in a communication network. The invention further includes multiple schemes for restoring low priority services. The network could consist of optical, ATM, FR, or IP/MPLS switches and cross-connects.

System And Method For Service Independent Data Routing
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US Patent:

7554904, Jun 30, 2009
Filed:

Feb 10, 2005
Appl. No.:

11/054496
Inventors:

Sid Chaudhuri - East Brunswick NJ, US
Simon S. Zelingher - Morganville NJ, US
Assignee:

AT & T Intellectual Property II LP - Reno NV
International Classification:

G01R 31/08
US Classification:

370221, 370216
Abstract:

Data are rerouted over a network having a uniform-capacity Tandem Connection by detecting a failure in a link in a path, maintaining the path through a Tandem Connection that does not include the failed link, and rerouting the data through the Tandem Connection based on information embedded in a tandem layer in the data, and independent of the constituent payload capacities within the tandem connection.