William Thomas Lidinsky

Author:

William Lidinsky

ISBN #:

0879422637

US Patent:

48721590, Oct 3, 1989

Filed:

Mar 31, 1988

Appl. No.:

7/175546

Inventors:

Jayant G. Hemmady - Naperville IL
William P. Lidinsky - Naperville IL
Gary A. Roediger - Downers Grove IL
Scott B. Steele - Naperville IL
Ronald C. Weddige - Western Springs IL
Bruce R. Zelle - Naperville IL

Assignee:

American Telephone and Telegraph Company AT&T Bell Laboratories - Murray Hill NJ

International Classification:

H04J 326

US Classification:

370 60

Abstract:

A high capacity metropolitan area network (MAN) is described. Data traffic from users is connected to data concentrators at the edge of the network, and is transmitted over fiber optic data links to a hub where the data is switched. The hub includes a plurality of data switching modules, each having a control means, and each connected to a distributed control space division switch. Advantageously, the data switching modules, whose inputs are connected to the concentrators, perform all checking and routing functions, while the 1024. times. 1024 maximum size space division switch, whose outputs are connected to the concentrators, provides a large fan-out distribution network for reaching many concentrators from each data switching module. Distributed control of the space division permits several million connection and disconnection actions to be performed each second, while the pipelined and parallel operation within the control means permits each of the 256 switching modules to process at least 50,000 transactions per second. The data switching modules chain groups of incoming packets destined for a common outlet of the space division switch so that only one connection in that switch is required for transmitting each group of chained packets from a data switching module to a concentrator.

US Patent:

49583417, Sep 18, 1990

Filed:

Mar 31, 1988

Appl. No.:

7/175547

Inventors:

Jayant G. Hemmady - Naperville IL
William P. Lidinsky - Naperville IL
Scott B. Steele - Naperville IL
Werner Ulrich - Glen Ellyn IL
Roanld C. Weddige - Western Springs IL

Assignee:

AT&T Bell Laboratories - Murray Hill NJ

International Classification:

H04Q 1104

US Classification:

370 601

Abstract:

A high capacity metropolitan area network (MAN) is described. Data traffic from users is connected to data concentrators at the edge of the network, and is tranmitted over fiber optic data links to a hub where the data is switched. The hub includes a plurality of data switching modules, each having a control means, and each connected to a distributed control space division switch. Advantageously, the data switching modules, whose inputs are connected to the concentrators, perform all checking and routing functions, while the 1024. times. 1024 maximum size space division switch, whose outputs are connected to the concentrators, provides a large fan-out distribution network for reaching many concentrators from each data switching module. Distributed control of the space division switch permits several million connection and disconnection actions to be performed each second, while the pipelined and parallel operation within the control means permits each of the 256 switching modules to process at least 50,000 transactions per second. The data switching modules chain groups of incoming packets destined for a common outlet of the space division switch so that only one connection in that switch is required for transmitting each group of chained packets from a data switching module to a concentrator.

US Patent:

48963194, Jan 23, 1990

Filed:

Mar 31, 1988

Appl. No.:

7/175544

Inventors:

William P. Lidinsky - Naperville IL
Gary A. Roediger - Downers Grove IL
Scott B. Steele - Naperville IL
Ronald C. Weddige - Western Springs IL
Bruce R. Zelle - Naperville IL

Assignee:

American Telephone and Telegraph Company, AT&T Bell Laboratories - Murray Hill NJ

International Classification:

H04Q 1104

US Classification:

370 60

Abstract:

A high capacity metropolitan area network (MAN) is described. Data traffic from users is connected to data concentrators at the edge of the network, and is transmitted over fiber optic data links to a hub where the data is switched. The hub includes a plurality of data switching modules, each having a control means, and each connected to a distributed control space division switch. Advantageously, the data switching modules, whose inputs are connected to the concentrators, perform all checking and routing functions, while the 1024. times. 1024 maximum size space division switch, whose outputs are connected to the concentrators, provides a large fan-out distribution network for reaching many concentrators from each data switching module. Distributed control of the space division switch permits several million connection and disconnection actions to be performed each second, while the pipelined and parallel operation within the control means permits each of the 256 switching modules to process at least 50,000 transactions per second. The data switching modules chain groups of incoming packets destined for a common outlet of the space division switch so that only one connection in that switch is required for transmitting each group of chained packets from a data switching module to a concentrator.

US Patent:

48721603, Oct 3, 1989

Filed:

Aug 30, 1988

Appl. No.:

7/238309

Inventors:

Jayant G. Hemmady - Naperville IL
William P. Lidinsky - Naperville IL
Scott B. Steele - Naperville IL
Werner Ulrich - Glen Ellyn IL
Ronald C. Weddige - Western Springs IL

Assignee:

American Telephone and Telegraph Company, AT&T Bell Laboratories - Murray Hill NJ

International Classification:

H04Q 1104

US Classification:

370 60

Abstract:

A high capacity metropolitan area network (MAN) is described. Data traffic from users is connected to data concentrators at the edge of the network, and is transmitted over fiber optic data links to a hub where the data is switched. The hub includes a plurality of data switching modules, each having a control means, and each connected to a distributed control space divisison switch. Advantageously, the data switching modules, whose inputs are connected to the concentrators, perform all checking and routing functions, while the 1024. times. 1024 maximum size space division switch, whose outputs are connected to the concentrators, provides a large fan-out distribution network for reaching many concentrators from each data switching module. Distributed control of the space division switch permits several million connection and disconnection actions to be performed each second, while the pipelined and parallel operation within the control means permits each of the 256 switching modules to process at least 50,000 transactions per second. The data switching modules chain groups of incoming packets destined for a common outlet of the space division switch so that only one connection in that switch is required for transmitting each group of chained packets from a data switching module to a concentrator.

US Patent:

49224867, May 1, 1990

Filed:

Mar 31, 1988

Appl. No.:

7/175693

Inventors:

William P. Lidinsky - Naperville IL
Gary A. Roediger - Downers Grove IL
Scott B. Steele - Naperville IL
Ronald C. Weddige - Western Springs IL

Assignee:

American Telephone and Telegraph Company - New York NY

International Classification:

H04Q 1104

US Classification:

370 60

Abstract:

A high capacity metropolitan area network (MAN) is described. Data traffic from users is connected to data concentrators at the edge of the network, and is transmitted over fiber optic data links to a hub where the data is switched. The hub includes a plurality of data switching modules, each having a control means, and each connected to a distributed control space division switch. Advantageously, the data switching modules, whose inputs are connected to the concentrators, perform all checking and routing functions, while the 1024. times. 1024 maaximum size space division switch, whose outputs are connected to the concentrators, provides a large fan-out distribution network for reaching many concentrators from each data switching module. Distributed control of the space division switch permits several million connection and disconnection actions to be performed each second, while the pipelined and parallel operation within the control means permits each of the 256 switching modules to process at least 50,000 transactions per second. The data switching modules chain groups of incoming packets destined for a common outlet of the space division switch so that only one connection in that switch is required for transmitting each group of chained packets from a data switching module to a concentrator.

US Patent:

48721573, Oct 3, 1989

Filed:

Mar 31, 1988

Appl. No.:

7/175694

Inventors:

Jayant G. Hemmady - Naperville IL
William P. Lidinsky - Naperville IL
Robert K. Nichols - Glen Ellyn IL
Gaylord W. Richards - Naperville IL
Gary A. Roediger - Downers Grove IL
Scott B. Steele - Naperville IL
Ronald C. Weddige - Western Springs IL
Bruce R. Zelle - Naperville IL

Assignee:

American Telephone and Telegraph Company, AT&T Bell Laboratories - Murray Hill NJ

International Classification:

H04Q 1104

US Classification:

370 60

Abstract:

A high capacity metropolitan area network (MAN) is described. Data traffic from users is connected to data concentrators at the edge of the network, and is transmitted over fiber optic data links to a hub where the data is switched. The hub includes a plurality of data switching modules, each having a control means, and each connected to a distributed control space division switch. Advantageously, the data switching modules, whose inputs are connected to the concentrators, perform all checking and routing functions, while the 1024. times. 1024 maximum size space division switch, whose outputs are connected to the concentrators, provides a large fan-out distribution network for reaching many concentrators from each data switching module. Distributed control of the space division switch permits several million connection and disconnection actions to be performed each second, while the pipelined and parallel operation within the control means permits each of the 256 switching modules to process at least 50,000 transactions per second. The data switching modules chain groups of incoming packets destined for a common outlet of the space division switch so that only one connection in that switch is required for transmitting each group of chained packets from a data switching module to a concentrator.

US Patent:

48978744, Jan 30, 1990

Filed:

Mar 31, 1988

Appl. No.:

7/175548

Inventors:

William P. Lidinsky - Naperville IL
Gary A. Roediger - Downers Grove IL
Scott B. Steele - Naperville IL
Ronald C. Weddige - Western Springs IL
Bruce R. Zelle - Naperville IL

Assignee:

American Telephone and Telegraph Company AT&T Bell Laboratories - Murray Hill NJ

International Classification:

H04L 900
H04L 1100

US Classification:

380 3

Abstract:

A high capacity metropolitan area network (MAN) is described. Data traffic from users is connected to data concentrators at the edge of the network, and is transmitted over fiber optic data links to a hub where the data is switched. The hub includes a plurality of data switching modules, each having a control means, and each connected to a distributed control space division switch. Advantageously, the data switching modules, whose inputs are connected to the concentrators, perform all checking and routing functions, while the 1024. times. 1024 maximum size space division switch, whose outputs are connected to the concentrators, provides a large fan-out distribution network for reaching many concentrators from each data switching module. Distributed control of the space division switch permits several million connection and disconnection actions to be performed each second, while the pipelined and parallel operation within the control means permits each of the 256 switching modules to process at least 50,000 transactions per second. The data switching modules chain groups of incoming packets destined for a common outlet of the space division switch so that only one connection in that switch is required for transmitting each group of chained packets from a data switching module to a concentrator.

US Patent:

47633174, Aug 9, 1988

Filed:

Dec 13, 1985

Appl. No.:

6/809196

Inventors:

Harvey R. Lehman - Batavia IL
William P. Lidinsky - Naperville IL
Harry E. Mussman - Glen Ellyn IL
David A. Spicer - Batavia IL
David Vlack - St. Charles IL

Assignee:

American Telephone and Telegraph Company, AT&T Bell Laboratories - Murray Hill NJ

International Classification:

H04Q 1104

US Classification:

370 58

Abstract:

A switched integrated wideband and narrowband multiservices digital network (FIGS. 1 and 2) is an ISDM providing universal information services based on wideband and narrowband voice, data, and video communications. It comprises a plurality of service areas (100, 101), each served by a central switching node (110). The central node is connected to a plurality of remote nodes (103) by feeder optical fibers (107) and a control bus extension (106). Network interface equipment (104) at subscribers' (102) premises is connected to remote nodes by distribution optical fibers (105). Each distribution fiber is wavelength-division multiplexed and carries modulated (pulse-analog, pulse-code, or differential pulse-code) wideband digital channels (205) and a multiplexed channel (206) comprising 32 time-division-multiplexed narrowband digital channels (207). One narrowband channel (207D) carries all signaling messages. Feeder fibers are wavelength-division multiplexed and carry modulated wideband digital channels (305), and multiplexed channels (306) each comprising a plurality of time-division-multiplexed distribution multiplexed channels.