Arik N Kashper

US Patent:

6522663, Feb 18, 2003

Filed:

Oct 18, 2000

Appl. No.:

09/690844

Inventors:

Behram H. Bharucha - Millburn NJ
Norman Farber - Freehold NJ
Thomas S. Giuffrida - Middletown NJ
Arik Kashper - Holmdel NJ
Steven S. Katz - Ocean NJ

Assignee:

ATT Corp. - New York NY

International Classification:

H04L 1266

US Classification:

370465, 3703956

Abstract:

This proposal outlines an approach for interfacing Synchronous Transfer Mode (STM) and Asynchronous Transfer Mode (ATM) networks and for transporting voice, fax and voice-band data calls by the ATM network in an efficient manner. In contrast to the well known ATM Variable Bit Rate (VBR) approach, this proposal allows one to transport 64 kb/s traffic efficiently over ATM by re-using STM network signaling and exploiting the standard AAL-1-type adaptation layer (intended for Constant Bite Rate, CBR, services). We use low bit rate encoding algorithms and achieve additional compression for speech by marking cells that do not contain talk spurts. The invention defines specific rules for STM-to-ATM interfacing, including all routing translation, and identifies necessary Terminal Adapter (TA) and ATM switch capabilities. This approach is an advancement over previous inventions that specified network architecture and terminal adapter requirements to provide a graceful transition from an STM network (for example the ATT long distance network) to an ATM network. Prior art described how to emulate an STM network in the ATM domain, but did not permit for compression and silence elimination and, therefore, did not allow achieving efficiency gains.

US Patent:

6680937, Jan 20, 2004

Filed:

Oct 18, 2000

Appl. No.:

09/690843

Inventors:

Behram H. Bharucha - Millburn NJ
Norman Farber - Freehold NJ
Thomas S. Giuffrida - Middletown NJ
Arik Kashper - Holmdel NJ
Steven S. Katz - Ocean NJ

Assignee:

ATT Corp. - New York NY

International Classification:

H04L 1256

US Classification:

370353, 370466, 37039561, 370230

Abstract:

This proposal outlines an approach for interfacing Synchronous Transfer Mode (STM) and Asynchronous Transfer Mode (ATM) networks and for transporting voice, fax and voice-band data calls by the ATM network in an efficient manner. In contrast to the well known ATM Variable Bit Rate (VBR) approach, this proposal allows one to transport 64 kb/s traffic efficiently over ATM by re-using STM network signaling and exploiting the standard AAL-1-type adaptation layer (intended for Constant Bite Rate, CBR, services). We use low bit rate encoding algorithms and achieve additional compression for speech by marking cells that do not contain talk spurts. The invention defines specific rules for STM-to-ATM interfacing, including all routing translation, and identifies necessary Terminal Adapter (TA) and ATM switch capabilities. This approach is an advancement over previous inventions that specified network architecture and terminal adapter requirements to provide a graceful transition from an STM network (for example the ATT long distance network) to an ATM network. Prior art described how to emulate an STM network in the ATM domain, but did not permit for compression and silence elimination and, therefore, did not allow achieving efficiency gains.

US Patent:

6697353, Feb 24, 2004

Filed:

Dec 31, 1997

Appl. No.:

09/001907

Inventors:

Behram H. Bharucha - Millburn NJ
Norman Farber - Freehold NJ
Thomas S. Giuffrida - Middletown NJ
Arik Kashper - Holmdel NJ
Steven S. Katz - Ocean NJ

Assignee:

ATT Corp. - New York NY

International Classification:

H04L 1266

US Classification:

370352

Abstract:

This proposal outlines an approach for interfacing Synchronous Transfer Mode (STM) and Asynchronous Transfer Mode (ATM) networks and for transporting voice, fax and voice-band data calls by the ATM network in an efficient manner. In contrast to the well known ATM Variable Bit Rate (VBR) approach, this proposal allows one to transport 64 kb/s traffic efficiently over ATM by re-using STM network signaling and exploiting the standard AAL-1-type adaptation layer (intended for Constant Bite Rate, CBR, services). We use low bit rate encoding algorithms and achieve additional compression for speech by marking cells that do not contain talk spurts. The invention defines specific rules for STM-to-ATM interfacing, including all routing translation, and identifies necessary Terminal Adapter (TA) and ATM switch capabilities. This approach is an advancement over previous inventions that specified network architecture and terminal adapter requirements to provide a graceful transition from an STM network (for example the ATT long distance network) to an ATM network. Prior art described how to emulate an STM network in the ATM domain, but did not permit for compression and silence elimination and, therefore, did not allow achieving efficiency gains.

US Patent:

20020064187, May 30, 2002

Filed:

Dec 31, 1997

Appl. No.:

09/001579

Inventors:

BEHRAM H BHARUCHA - MILLBURN NJ, US
NORMAN FARBER - FREEHOLD NJ, US
THOMAS S GIUFFRIDA - MIDDLETOWN NJ, US
ARIK KASHPER - HOLMDEL NJ, US
STEVEN S KATZ - OCEAN NJ, US

International Classification:

H04L012/56

US Classification:

370/522000, 370/395100

Abstract:

This proposal outlines an approach for interfacing Synchronous Transfer Mode (STM) and Asynchronous Transfer Mode (ATM) networks and for transporting voice, fax and voice-band data calls by the ATM network in an efficient manner. In contrast to the well known ATM Variable Bit Rate (VBR) approach, this proposal allows one to transport 64 kb/s traffic efficiently over ATM by re-using STM network signaling and exploiting the standard AAL-1-type adaptation layer (intended for Constant Bite Rate, CBR, services). We use low bit rate encoding algorithms and achieve additional compression for speech by marking cells that do not contain talk spurts. The invention defines specific rules for STM-to-ATM interfacing, including all routing translation, and identifies necessary Terminal Adapter (TA) and ATM switch capabilities. This approach is an advancement over previous inventions that specified network architecture and terminal adapter requirements to provide a graceful transition from an STM network (for example the AT&T long distance network) to an ATM network. Prior art described how to emulate an STM network in the ATM domain, but did not permit for compression and silence elimination and, therefore, did not allow achieving efficiency gains.

US Patent:

55684750, Oct 22, 1996

Filed:

Dec 21, 1994

Appl. No.:

8/360897

Inventors:

Bharat T. Doshi - Holmdel NJ
N. Farber - Freehold NJ
P. Harshavardhana - Marlboro NJ
Rajiv Kapoor - Marlboro NJ
Arik Kashper - Holmdel NJ
Steven S. Katz - Ocean NJ
Thomas S. Guiffrida - Middletown NJ

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H04L 1264

US Classification:

370 582

Abstract:

An Asynchronous Transfer(ATM) network comprising a plurality of ATM switches may be arranged so that it receives calls from Synchronous Transfer Mode (STM) switches that employ out-of-band signaling such that the ATM switches communicate telephone call signaling information between each other and the STM switches via an out-of-band signaling network associated with the ATM network and interface with out-of-band networks associated with the STM switches.

US Patent:

6324179, Nov 27, 2001

Filed:

Dec 21, 1994

Appl. No.:

8/360894

Inventors:

Bharat Tarachand Doshi - Holmdel NJ
N. Farber - Freehold NJ
P. Harshavardhana - Marlboro NJ
Rajiv Kapoor - Marlboro NJ
Arik Kashper - Holmdel NJ
Steven S. Katz - Ocean NJ
Thomas S. Giuffrida - Middletown NJ

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H04L 1228
H04L 1256

US Classification:

370395

Abstract:

An Asynchronous Transfer Mode (ATM) network comprising a plurality of ATM switches may be arranged so that it receives calls from Synchronous Transfer Mode (STM) switches that employ in-band signaling by first converting in-band signals received from an STM switch to an out-of-band signaling message and then transmitting the message to the ATM switch that will route the associated call toward its destination. At an interface which interfaces the ATM switch with the out-of-band signaling network, the contents of the received message are converted to a form suitable for presentation to the ATM switch. For example, the identity of the trunk over which the call will be routed from the STM switch to the ATM switch is converted to a virtual channel identifier.

US Patent:

63241749, Nov 27, 2001

Filed:

Dec 31, 1997

Appl. No.:

9/001577

Inventors:

Behram H. Bharucha - Millburn NJ
Thomas S. Giuffrida - Middletown NJ
Norman Farber - Freehold NJ
Arik Kashper - Holmdel NJ
Steven S. Katz - Ocean NJ

Assignee:

AT&T Corporation - New York NY

International Classification:

H04L 1266
H04L 1256

US Classification:

370352

Abstract:

This proposal outlines an approach for interfacing Synchronous Transfer Mode (STM) and Asynchronous Transfer Mode (ATM) networks and for transporting voice, fax and voice-band data calls by the ATM network in an efficient manner. In contrast to the well known ATM Variable Bit Rate (VBR) approach, this proposal allows one to transport 64 kb/s traffic efficiently over ATM by re-using STM network signaling and exploiting the standard AAL-1-type adaptation layer (intended for Constant Bite Rate, CBR, services). We use low bit rate encoding algorithms and achieve additional compression for speech by marking cells that do not contain talk spurts. The invention defines specific rules for STM-to-ATM interfacing, including all routing translation, and identifies necessary Terminal Adapter (TA) and ATM switch capabilities. This approach is an advancement over previous inventions that specified network architecture and terminal adapter requirements to provide a graceful transition from an STM network (for example the AT&T long distance network) to an ATM network. Prior art described how to emulate an STM network in the ATM domain, but did not permit for compression and silence elimination and, therefore, did not allow achieving efficiency gains.

US Patent:

59956127, Nov 30, 1999

Filed:

Dec 23, 1996

Appl. No.:

8/780065

Inventors:

Bharat Tarachand Doshi - Holmdel NJ
Norman Farber - Freehold NJ
Thomas S. Giuffrida - Middletown NJ
Mahalakshmi Jairam - Randolph NJ
Pravin Kumar Johri - Aberdeen NJ
Arik Kashper - Holmdel NJ
Steven S. Katz - Ocean NJ

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H04M 700
H04M 300

US Classification:

379219

Abstract:

The efficiency of a telecommunications network is enhanced by associating each of the communication switches forming the network with an external connection control processor and forming the switches into respective groups of communication switches. The communication switches forming a respective group of switches are fully interconnected to one another and then each of the communications switches forming a respective one of the groups is connected at least one other group of telecommunication switches as a way of interconnecting the groups with one another.