Patents by Inventor Sheryl Leigh Woodward
Sheryl Leigh Woodward 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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Publication number: 20230134574Abstract: A multi-layer network planning system can determine a set of regenerator sites (“RSs”) that have been found to cover all paths among a set of nodes of an optical layer of a multi-layer network and can determine a set of candidate RSs in the optical layer for use by the links between a set of nodes of an upper layer, wherein each RS can be selected as a candidate RS for the links. The system can determine a binary path matrix for the links between the set of nodes of the upper layer. The system can determine a min-cost matrix that includes a plurality of min-cost paths. The system can determine a best RS from the set of candidate RSs and can move the best RS from the set of candidate RSs into the set of RSs for the links. The system can then update the binary path matrix.Type: ApplicationFiled: December 29, 2022Publication date: May 4, 2023Applicant: AT&T Intellectual Property I, L.P.Inventors: Balagangadhar Bathula, Angela Chiu, Rakesh Sinha, Sheryl Leigh Woodward
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Patent number: 11552723Abstract: A multi-layer network planning system can determine a set of regenerator sites (“RSs”) that have been found to cover all paths among a set of nodes of an optical layer of a multi-layer network and can determine a set of candidate RSs in the optical layer for use by the links between a set of nodes of an upper layer, wherein each RS can be selected as a candidate RS for the links. The system can determine a binary path matrix for the links between the set of nodes of the upper layer. The system can determine a min-cost matrix that includes a plurality of min-cost paths. The system can determine a best RS from the set of candidate RSs and can move the best RS from the set of candidate RSs into the set of RSs for the links. The system can then update the binary path matrix.Type: GrantFiled: September 30, 2019Date of Patent: January 10, 2023Assignee: AT&T Intellectual Property I, L.P.Inventors: Balagangadhar Bathula, Angela Chiu, Rakesh Sinha, Sheryl Leigh Woodward
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Patent number: 10965490Abstract: A method includes dividing, at a cable modem termination system, a transmit stream into multiple data streams. The multiple data streams include a first data stream and a second data stream. Each of the multiple data streams has a lower bit rate than a bit rate of the transmit stream. The method includes transmitting, via the cable modem termination system, the first data stream over at least a first channel of a group of channels. The method also includes transmitting, via the cable modem termination system, the second data stream over at least a second channel of the group of channels. The group of channels supports traffic to a plurality of destinations. The first channel and the second channel are frequency-division multiplexed channels.Type: GrantFiled: June 21, 2018Date of Patent: March 30, 2021Assignee: AT&T INTELLECTUAL PROPERTY II, L.P.Inventors: Bhavesh N. Desai, Nemmara K. Shankaranarayanan, David Hilton Shur, Aleksandra Smiljanic, Todd J. Totland, Jacobus E. Van der Merwe, Sheryl Leigh Woodward
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Publication number: 20200028608Abstract: A multi-layer network planning system can determine a set of regenerator sites (“RSs”) that have been found to cover all paths among a set of nodes of an optical layer of a multi-layer network and can determine a set of candidate RSs in the optical layer for use by the links between a set of nodes of an upper layer, wherein each RS can be selected as a candidate RS for the links. The system can determine a binary path matrix for the links between the set of nodes of the upper layer. The system can determine a min-cost matrix that includes a plurality of min-cost paths. The system can determine a best RS from the set of candidate RSs and can move the best RS from the set of candidate RSs into the set of RSs for the links. The system can then update the binary path matrix.Type: ApplicationFiled: September 30, 2019Publication date: January 23, 2020Applicant: AT&T Intellectual Property I, L.P.Inventors: Balagangadhar Bathula, Angela Chiu, Rakesh Sinha, Sheryl Leigh Woodward
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Publication number: 20190327016Abstract: A multi-layer network planning system can determine a set of regenerator sites (“RSs”) that have been found to cover all paths among a set of nodes of an optical layer of a multi-layer network and can determine a set of candidate RSs in the optical layer for use by the links between a set of nodes of an upper layer, wherein each RS can be selected as a candidate RS for the links. The system can determine a binary path matrix for the links between the set of nodes of the upper layer. The system can determine a min-cost matrix that includes a plurality of min-cost paths. The system can determine a best RS from the set of candidate RSs and can move the best RS from the set of candidate RSs into the set of RSs for the links. The system can then update the binary path matrix.Type: ApplicationFiled: April 18, 2018Publication date: October 24, 2019Applicant: AT&T Intellectual Property I, L.P.Inventors: Balagangadhar Bathula, Angela Chiu, Rakesh Sinha, Sheryl Leigh Woodward
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Patent number: 10432342Abstract: A multi-layer network planning system can determine a set of regenerator sites (“RSs”) that have been found to cover all paths among a set of nodes of an optical layer of a multi-layer network and can determine a set of candidate RSs in the optical layer for use by the links between a set of nodes of an upper layer, wherein each RS can be selected as a candidate RS for the links. The system can determine a binary path matrix for the links between the set of nodes of the upper layer. The system can determine a min-cost matrix that includes a plurality of min-cost paths. The system can determine a best RS from the set of candidate RSs and can move the best RS from the set of candidate RSs into the set of RSs for the links. The system can then update the binary path matrix.Type: GrantFiled: April 18, 2018Date of Patent: October 1, 2019Assignee: AT&T Intellectual Property I, L.P.Inventors: Balagangadhar Bathula, Angela Chiu, Rakesh Sinha, Sheryl Leigh Woodward
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Patent number: 10171197Abstract: A method, computer-readable storage device and apparatus for routing traffic in a reconfigurable optical add-drop multiplexer layer of a dense wavelength division multiplexing network are disclosed. For example, the method determines the reconfigurable optical add-drop multiplexer layer has asymmetric traffic, and routes the asymmetric traffic in the reconfigurable optical add-drop multiplexer layer over a plurality of asymmetrical optical connections, wherein the plurality of asymmetrical optical connections is provided with only uni-directional equipment in the reconfigurable optical add-drop multiplexer layer.Type: GrantFiled: August 14, 2017Date of Patent: January 1, 2019Assignee: AT&T Intellectual Property I, L.P.Inventors: Balagangadhar G. Bathula, Angela L. Chiu, Mark David Feuer, Rakesh Kumar Sinha, John Lester Strand, Sheryl Leigh Woodward, Weiyi Zhang
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Publication number: 20180302236Abstract: A method includes dividing, at a cable modem termination system, a transmit stream into multiple data streams. The multiple data streams include a first data stream and a second data stream. Each of the multiple data streams has a lower bit rate than a bit rate of the transmit stream. The method includes transmitting, via the cable modem termination system, the first data stream over at least a first channel of a group of channels. The method also includes transmitting, via the cable modem termination system, the second data stream over at least a second channel of the group of channels. The group of channels supports traffic to a plurality of destinations. The first channel and the second channel are frequency-division multiplexed channels.Type: ApplicationFiled: June 21, 2018Publication date: October 18, 2018Inventors: Bhavesh N. Desai, Nemmara K. Shankaranarayanan, David Hilton Shur, Aleksandra Smiljanic, Todd J. Totland, Jacobus E. Van der Merwe, Sheryl Leigh Woodward
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Patent number: 10009190Abstract: A method at a cable modem termination system includes dividing a transmit stream into multiple data streams and transmitting the multiple data streams over multiple radio frequency channels of a group of channels. The group of channels supports traffic to a plurality of destinations. Each channel in the group of channels is a downstream channel.Type: GrantFiled: August 28, 2014Date of Patent: June 26, 2018Assignee: AT&T INTELLECTUAL PROPERTY II, L.P.Inventors: Bhavesh N. Desai, Nemmara K. Shankaranarayanan, David Hilton Shur, Aleksandra Smiljanic, Todd J. Totland, Jacobus E. Van der Merwe, Sheryl Leigh Woodward
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Publication number: 20170346590Abstract: A method, computer-readable storage device and apparatus for routing traffic in a reconfigurable optical add-drop multiplexer layer of a dense wavelength division multiplexing network are disclosed. For example, the method determines the reconfigurable optical add-drop multiplexer layer has asymmetric traffic, and routes the asymmetric traffic in the reconfigurable optical add-drop multiplexer layer over a plurality of asymmetrical optical connections, wherein the plurality of asymmetrical optical connections is provided with only uni-directional equipment in the reconfigurable optical add-drop multiplexer layer.Type: ApplicationFiled: August 14, 2017Publication date: November 30, 2017Inventors: Balagangadhar G. Bathula, Angela L. Chiu, Mark David Feuer, Rakesh Kumar Sinha, John Lester Strand, Sheryl Leigh Woodward, Weiyi Zhang
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Patent number: 9735912Abstract: A method, computer-readable storage device and apparatus for routing traffic in a reconfigurable optical add-drop multiplexer layer of a dense wavelength division multiplexing network are disclosed. For example, the method determines the reconfigurable optical add-drop multiplexer layer has asymmetric traffic, and routes the asymmetric traffic in the reconfigurable optical add-drop multiplexer layer over a plurality of asymmetrical optical connections, wherein the plurality of asymmetrical optical connections is provided with only uni-directional equipment in the reconfigurable optical add-drop multiplexer layer.Type: GrantFiled: July 31, 2016Date of Patent: August 15, 2017Assignee: AT&T Intellectual Property I, L.P.Inventors: Balagangadhar G. Bathula, Angela L. Chiu, Mark David Feuer, Rakesh Kumar Sinha, John Lester Strand, Sheryl Leigh Woodward, Weiyi Zhang
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Publication number: 20160344506Abstract: A method, computer-readable storage device and apparatus for routing traffic in a reconfigurable optical add-drop multiplexer layer of a dense wavelength division multiplexing network are disclosed. For example, the method determines the reconfigurable optical add-drop multiplexer layer has asymmetric traffic, and routes the asymmetric traffic in the reconfigurable optical add-drop multiplexer layer over a plurality of asymmetrical optical connections, wherein the plurality of asymmetrical optical connections is provided with only uni-directional equipment in the reconfigurable optical add-drop multiplexer layer.Type: ApplicationFiled: July 31, 2016Publication date: November 24, 2016Inventors: BALAGANGADHAR G. BATHULA, Angela L. Chiu, Mark David Feuer, Rakesh Kumar Sinha, John Lester Strand, Sheryl Leigh Woodward, Weiyi Zhang
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Patent number: 9413640Abstract: A method, computer-readable storage device and apparatus for routing traffic in a reconfigurable optical add-drop multiplexer layer of a dense wavelength division multiplexing network are disclosed. For example, the method determines the reconfigurable optical add-drop multiplexer layer has asymmetric traffic, and routes the asymmetric traffic in the reconfigurable optical add-drop multiplexer layer over a plurality of asymmetrical optical connections, wherein the plurality of asymmetrical optical connections is provided with only uni-directional equipment in the reconfigurable optical add-drop multiplexer layer.Type: GrantFiled: December 30, 2015Date of Patent: August 9, 2016Assignee: AT&T Intellectual Property I, L.P.Inventors: Balagangadhar G. Bathula, Angela L. Chiu, Mark David Feuer, Rakesh Kumar Sinha, John Lester Strand, Sheryl Leigh Woodward, Weiyi Zhang
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Publication number: 20160119222Abstract: A method, computer-readable storage device and apparatus for routing traffic in a reconfigurable optical add-drop multiplexer layer of a dense wavelength division multiplexing network are disclosed. For example, the method determines the reconfigurable optical add-drop multiplexer layer has asymmetric traffic, and routes the asymmetric traffic in the reconfigurable optical add-drop multiplexer layer over a plurality of asymmetrical optical connections, wherein the plurality of asymmetrical optical connections is provided with only uni-directional equipment in the reconfigurable optical add-drop multiplexer layer.Type: ApplicationFiled: December 30, 2015Publication date: April 28, 2016Inventors: Balagangadhar G. Bathula, Angela L. Chiu, Mark David Feuer, Rakesh Kumar Sinha, John Lester Strand, Sheryl Leigh Woodward, Weiyi Zhang
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Patent number: 9246623Abstract: A method, computer-readable storage device and apparatus for routing traffic in a reconfigurable optical add-drop multiplexer layer of a dense wavelength division multiplexing network are disclosed. For example, the method determines the reconfigurable optical add-drop multiplexer layer has asymmetric traffic, and routes the asymmetric traffic in the reconfigurable optical add-drop multiplexer layer over a plurality of asymmetrical optical connections, wherein the plurality of asymmetrical optical connections is provided with only uni-directional equipment in the reconfigurable optical add-drop multiplexer layer.Type: GrantFiled: December 2, 2013Date of Patent: January 26, 2016Assignee: AT&T Intellectual Property I, L.P.Inventors: Balagangadhar G. Bathula, Angela L. Chiu, Mark David Feuer, Rakesh Kumar Sinha, John Lester Strand, Sheryl Leigh Woodward, Weiyi Zhang
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Publication number: 20150155962Abstract: A method, computer-readable storage device and apparatus for routing traffic in a reconfigurable optical add-drop multiplexer layer of a dense wavelength division multiplexing network are disclosed. For example, the method determines the reconfigurable optical add-drop multiplexer layer has asymmetric traffic, and routes the asymmetric traffic in the reconfigurable optical add-drop multiplexer layer over a plurality of asymmetrical optical connections, wherein the plurality of asymmetrical optical connections is provided with only uni-directional equipment in the reconfigurable optical add-drop multiplexer layer.Type: ApplicationFiled: December 2, 2013Publication date: June 4, 2015Applicant: AT&T Intellectual Property I, L.P.Inventors: BALAGANGADHAR G. BATHULA, Angela L. Chiu, Mark David Feuer, Rakesh Kumar Sinha, John Lester Strand, Sheryl Leigh Woodward, Weiyi Zhang
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Publication number: 20140369353Abstract: A method at a cable modem termination system includes dividing a transmit stream into multiple data streams and transmitting the multiple data streams over multiple radio frequency channels of a group of channels. The group of channels supports traffic to a plurality of destinations. Each channel in the group of channels is a downstream channel.Type: ApplicationFiled: August 28, 2014Publication date: December 18, 2014Inventors: Bhavesh N. Desai, Nemmara K. Shankaranarayanan, David Hilton Shur, Aleksandra Smiljanic, Todd J. Totland, Jacobus E. Van der Merwe, Sheryl Leigh Woodward
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Patent number: 8855147Abstract: A method includes receiving, at a transmit site, a first stream of packets addressed to an end user device in a first address space. The first stream of packets is encapsulated to form a second stream of packets addressed in a second address space. A first packet of the second stream of packets is assigned to a first radio frequency channel of a plurality of radio frequency channels. A second packet of the second stream of packets is assigned to a second radio frequency channel of the plurality of radio frequency channels. The first packet is transmitted via the first radio frequency channel and, in parallel, the second packet is transmitted via the second radio frequency channel.Type: GrantFiled: July 6, 2011Date of Patent: October 7, 2014Assignee: AT&T Intellectual Property II, L.P.Inventors: Bhavesh N. Desai, Nemmara K. Shankaranarayanan, David Hilton Shur, Aleksandra Smiljanic, Todd J. Totland, Jacobus E. van der Merwe, Sheryl Leigh Woodward
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Publication number: 20110261737Abstract: A method includes receiving, at a transmit site, a first stream of packets addressed to an end user device in a first address space. The first stream of packets is encapsulated to form a second stream of packets addressed in a second address space. A first packet of the second stream of packets is assigned to a first radio frequency channel of a plurality of radio frequency channels. A second packet of the second stream of packets is assigned to a second radio frequency channel of the plurality of radio frequency channels. The first packet is transmitted via the first radio frequency channel and, in parallel, the second packet is transmitted via the second radio frequency channel.Type: ApplicationFiled: July 6, 2011Publication date: October 27, 2011Applicant: AT&T Intellectual Property II, L.P. (formerly known as AT&T CORP.)Inventors: Bhavesh N. Desai, Nemmara K. Shankaranarayanan, David Hilton Shur, Aleksandra Smiljanic, Todd J. Totland, Jacobus E. van der Merwe, Sheryl Leigh Woodward
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Patent number: 8000331Abstract: A receive device includes a plurality of demodulators and a tunnel destination. The demodulators are configured to receive multiple data streams, each of the multiple data streams having a bit rate that is lower than a bit rate of a transmit data stream. The tunnel destination is configured to recombine the multiple data streams to provide a receive data stream having a bit rate equal to the bit rate of the transmit data stream. At least one of multiple radio frequency channels is connected to a legacy user between a transmit site and the receive device.Type: GrantFiled: April 23, 2010Date of Patent: August 16, 2011Assignee: AT&T Intellectual Property II, L.P.Inventors: Bhavesh N. Desai, Nemmara K. Shankaranarayanan, David Hilton Shur, Aleksandra Smiljanic, Todd L. Totland, Jacobus Van der Merwe, Sheryl Leigh Woodward