Patents by Inventor Bruce R. Zelle
Bruce R. Zelle has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8081639Abstract: Clock recovery is used in a variety of communications network applications to enable nodes using different clocks to operate in an effectively synchronized manner. Example embodiments of the present invention include an apparatus and corresponding method for supporting client data transport with timing transparency and require neither a common clock to be available at both the ingress and egress sides of the connection nor overhead bytes to recover a client clock. Rather, client traffic clock recovery may be performed in example embodiments of the present invention entirely in the egress data path using the client data received from the ingress side after removing the clients signal from a higher level carrier signal.Type: GrantFiled: August 18, 2009Date of Patent: December 20, 2011Assignee: Tellabs Operations, Inc.Inventors: Lawrence D. Weizeorick, Bruce R. Zelle, Steven T. DeLong
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Publication number: 20100192003Abstract: Clock recovery is used in a variety of communications network applications to enable nodes using different clocks to operate in an effectively synchronized manner. Example embodiments of the present invention include an apparatus and corresponding method for supporting client data transport with timing transparency and require neither a common clock to be available at both the ingress and egress sides of the connection nor overhead bytes to recover a client clock. Rather, client traffic clock recovery may be performed in example embodiments of the present invention entirely in the egress data path using the client data received from the ingress side after removing the clients signal from a higher level carrier signal.Type: ApplicationFiled: August 18, 2009Publication date: July 29, 2010Applicant: Tellabs Operations, Inc.Inventors: Lawrence D. Weizeorick, Bruce R. Zelle, Steven T. DeLong
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Patent number: 4977582Abstract: A high capacity metroplita, 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 1024x1024 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.Type: GrantFiled: March 31, 1988Date of Patent: December 11, 1990Assignee: AT&T Bell LaboratoriesInventors: Robert K. Nichols, Bruce R. Zelle
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Patent number: 4942574Abstract: 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. 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.Type: GrantFiled: March 31, 1988Date of Patent: July 17, 1990Assignee: American Telephone and Telegraph Company, AT&T Bell LaboratoriesInventor: Bruce R. Zelle
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Patent number: 4897874Abstract: 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.Type: GrantFiled: March 31, 1988Date of Patent: January 30, 1990Assignee: American Telephone and Telegraph Company AT&T Bell LaboratoriesInventors: William P. Lidinsky, Gary A. Roediger, Scott B. Steele, Ronald C. Weddige, Bruce R. Zelle
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Patent number: 4896319Abstract: 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.Type: GrantFiled: March 31, 1988Date of Patent: January 23, 1990Assignee: American Telephone and Telegraph Company, AT&T Bell LaboratoriesInventors: William P. Lidinsky, Gary A. Roediger, Scott B. Steele, Ronald C. Weddige, Bruce R. Zelle
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Patent number: 4893302Abstract: 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.Type: GrantFiled: March 31, 1988Date of Patent: January 9, 1990Assignee: American Telephone and Telegraph Company, AT&T Bell LaboratoriesInventors: Jayant G. Hemmady, Michael J. Knudsen, William P. Lidinsky, Robert K. Nichols, Gaylord W. Richards, Gary A. Roediger, Scott B. Steele, Ronald C. Weddige, Bruce R. Zelle
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Patent number: 4872159Abstract: 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.Type: GrantFiled: March 31, 1988Date of Patent: October 3, 1989Assignee: American Telephone and Telegraph Company AT&T Bell LaboratoriesInventors: Jayant G. Hemmady, William P. Lidinsky, Gary A. Roediger, Scott B. Steele, Ronald C. Weddige, Bruce R. Zelle
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Patent number: 4872157Abstract: 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.Type: GrantFiled: March 31, 1988Date of Patent: October 3, 1989Assignee: American Telephone and Telegraph Company, AT&T Bell LaboratoriesInventors: Jayant G. Hemmady, William P. Lidinsky, Robert K. Nichols, Gaylord W. Richards, Gary A. Roediger, Scott B. Steele, Ronald C. Weddige, Bruce R. Zelle