Patents by Inventor Scott Pegrum
Scott Pegrum 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: 9706273Abstract: The invention relates to a method for auto-configuring a wavelength selective switch (WSS) device having an output port and a plurality of input ports and coupled to a WSS controller. When connected to a WDM optical network, the WSS controller is programmed to utilize one or more optical channel monitors (OCM) coupled to the input and/or output ports to detect which of the wavelengths are present at the input ports. Wavelengths that are not detected on any input port are blocked by the WSS. Any wavelength detected as present at one and only one input port is switched by the WSS to the output port. If a wavelength is detected at two or more input ports, it is either blocked by the WSS at each of the input ports until user intervention, or is blocked at all but one of the input ports as defined by assigned port priorities.Type: GrantFiled: January 29, 2015Date of Patent: July 11, 2017Assignee: Lumentum Operations LLCInventors: Thomas Haslam, David Coomber, Daniel Doliska, Michael Scott Pegrum, Marc-Antoine Boutin, Brian Sungwan Kim
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Publication number: 20150139643Abstract: The invention relates to a method for auto-configuring a wavelength selective switch (WSS) device having an output port and a plurality of input ports and coupled to a WSS controller. When connected to a WDM optical network, the WSS controller is programmed to utilize one or more optical channel monitors (OCM) coupled to the input and/or output ports to detect which of the wavelengths are present at the input ports. Wavelengths that are not detected on any input port are blocked by the WSS. Any wavelength detected as present at one and only one input port is switched by the WSS to the output port. If a wavelength is detected at two or more input ports, it is either blocked by the WSS at each of the input ports until user intervention, or is blocked at all but one of the input ports as defined by assigned port priorities.Type: ApplicationFiled: January 29, 2015Publication date: May 21, 2015Inventors: Thomas HASLAM, David Coomber, Daniel Doliska, Michael Scott Pegrum, Marc-Antoine Boutin, Brian Sungwan Kim
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Patent number: 8948592Abstract: The invention relates to a method for auto-configuring a wavelength selective switch (WSS) device having an output port and a plurality of input ports and coupled to a WSS controller. When connected to a WDM optical network, the WSS controller is programmed to utilize one or more optical channel monitors (OCM) coupled to the input and/or output ports to detect which of the wavelengths are present at the input ports. Wavelengths that are not detected on any input port are blocked by the WSS. Any wavelength detected as present at one and only one input port is switched by the WSS to the output port. If a wavelength is detected at two or more input ports, it is either blocked by the WSS at each of the input ports until user intervention, or is blocked at all but one of the input ports as defined by assigned port priorities.Type: GrantFiled: March 1, 2010Date of Patent: February 3, 2015Assignee: JDS Uniphase CorporationInventors: Thomas Haslam, David Coomber, Daniel Doliska, Michael Scott Pegrum, Marc-Antoine Boutin, Brian Sungwan Kim
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Publication number: 20130266005Abstract: Described is a node comprising a switch fabric and first and second ingress modules. The first ingress module receives a first stream of packets from a first physical path through the network; forwards a copy of the first stream of packets to an intermodule communication channel; selects packets from the first stream of packets and a copy of a second stream of packets for forwarding to the switch fabric. The second ingress module receives the second stream of packets from a second physical path through the network; forwards the copy of the second stream of packets to the intermodule communication channel; and selects packets from the copy of the first stream of packets and the second stream of packets for forwarding to the switch fabric based on sequence numbers in the packets.Type: ApplicationFiled: June 3, 2013Publication date: October 10, 2013Inventors: Michael Scott Pegrum, Greg A. Wilbur
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Patent number: 8483224Abstract: Described is a node comprising a switch fabric and first and second ingress modules. The first ingress module receives a first stream of packets from a first physical path through the network; forwards a copy of the first stream of packets to an intermodule communication channel; selects packets from the first stream of packets and a copy of a second stream of packets for forwarding to the switch fabric. The second ingress module receives the second stream of packets from a second physical path through the network; forwards the copy of the second stream of packets to the intermodule communication channel; and selects packets from the copy of the first stream of packets and the second stream of packets for forwarding to the switch fabric based on sequence numbers in the packets.Type: GrantFiled: March 6, 2012Date of Patent: July 9, 2013Assignee: Rockstar Consortium US LPInventors: Michael Scott Pegrum, Greg A. Wilbur
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Publication number: 20120201123Abstract: Described is a node comprising a switch fabric and first and second ingress modules. The first ingress module receives a first stream of packets from a first physical path through the network; forwards a copy of the first stream of packets to an intermodule communication channel; selects packets from the first stream of packets and a copy of a second stream of packets for forwarding to the switch fabric. The second ingress module receives the second stream of packets from a second physical path through the network; forwards the copy of the second stream of packets to the intermodule communication channel; and selects packets from the copy of the first stream of packets and the second stream of packets for forwarding to the switch fabric based on sequence numbers in the packets.Type: ApplicationFiled: March 6, 2012Publication date: August 9, 2012Applicant: ROCKSTAR BIDCO, LPInventors: Michael Scott Pegrum, Greg A. Wilbur
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Patent number: 8144711Abstract: Described are a system and method for providing protection switching and bandwidth sharing in a network. A first endpoint device adds a sequence number to each packet to produce a stream of numbered packets and provides a plurality of packet streams from the stream of numbered packets. The first endpoint device forwards a first packet stream over a first path and a second packet stream over a second path separate from the first path. In one embodiment, the packet streams are identical. In another embodiment, the packet streams are different. A second endpoint device receives the first packet stream over the first path and the second packet stream over the second path. From the packet streams, the second endpoint device determines whether each packet in the packet streams is to be included in an output packet stream based on that packet's sequence number.Type: GrantFiled: July 15, 2002Date of Patent: March 27, 2012Assignee: Rockstar Bidco, LPInventors: Michael Scott Pegrum, Greg A. Wilbur
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Publication number: 20100221004Abstract: The invention relates to a method for auto-configuring a wavelength selective switch (WSS) device having an output port and a plurality of input ports and coupled to a WSS controller. When connected to a WDM optical network, the WSS controller is programmed to utilize one or more optical channel monitors (OCM) coupled to the input and/or output ports to detect which of the wavelengths are present at the input ports. Wavelengths that are not detected on any input port are blocked by the WSS. Any wavelength detected as present at one and only one input port is switched by the WSS to the output port. If a wavelength is detected at two or more input ports, it is either blocked by the WSS at each of the input ports until user intervention, or is blocked at all but one of the input ports as defined by assigned port priorities.Type: ApplicationFiled: March 1, 2010Publication date: September 2, 2010Inventors: Thomas Haslam, David Coomber, Daniel Doliska, Michael Scott Pegrum, Marc-Antoine Boutin, Brian Sungwan Kim
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Patent number: 6996102Abstract: Data traffic is conveyed through a node of a communications network. A parameter respecting the data traffic is assigned in an ingress interface of the node, and inserted into an intra-switch header attached to each packet. The data traffic, along with the intra-switch header are forwarded across the node to an egress interface. The parameter is then extracted from the intra-switch header, and used to control processing of the data traffic in the egress interface. The parameter may provide information identifying the source of the data traffic, but may also include other flow-specific information, such as, for example, a normalized DiffServ Code Point. The parameter may be used, in combination with an intra-switch multicast group ID to query one or more translation tables, to thereby enable egress-interface and/or egress port specific replication, forwarding and translation services in respect of the data traffic.Type: GrantFiled: December 21, 2000Date of Patent: February 7, 2006Assignee: Nortel Networks LimitedInventors: Scott Pegrum, Matthew Yuen, Alicja Celer
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Patent number: 6516417Abstract: A system and method of automatically configuring virtual private networks is provided. The virtual private networks disclosed, include multiple routers selectively connectable to the shared network, such that each of the routers is assigned at least one: shared network address, private network address and virtual private network identifier. Each router includes a controller configured to communicate a router configuration message over the shared network to other members of the same virtual private network. The router configuration message informs the other members of the virtual private network the address of the router and what devices are connected to the router.Type: GrantFiled: August 7, 1998Date of Patent: February 4, 2003Assignee: Nortel Networks, LimitedInventors: Michael Scott Pegrum, Dwight Jamieson, Matthew Yuen
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Patent number: 6490244Abstract: Upper layer 3 routing in conjunction with self-healing lower layer networks is more informed by the addition of reachability costs determined in the lower layer. Maintenance changes on the self-healing network are monitored. A change causes revision of reachability costs. The revised costs are communicated by lower layer logic to upper layer logic.Type: GrantFiled: March 9, 2000Date of Patent: December 3, 2002Assignee: Nortel Networks LimitedInventors: Scott Pegrum, Matthew Yuen, Alicja Celer
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Publication number: 20020080720Abstract: Data traffic is conveyed through a node of a communications network. A parameter respecting the data traffic is assigned in an ingress interface of the node, and inserted into an intra-switch header attached to each packet. The data traffic, along with the intra-switch header are forwarded across the node to an egress interface. The parameter is then extracted from the intra-switch header, and used to control processing of the data traffic in the egress interface. The parameter may provide information identifying the source of the data traffic, but may also include other flow-specific information, such as, for example, a normalized DiffServ Code Point. The parameter may be used, in combination with an intra-switch multicast group ID to query one or more translation tables, to thereby enable egress-interface and/or egress port specific replication, forwarding and translation services in respect of the data traffic.Type: ApplicationFiled: December 21, 2000Publication date: June 27, 2002Applicant: Nortel Networks LimitedInventors: Scott Pegrum, Matthew Yuen, Alicja Celer