Steven Dale Hand

US Patent:

7783746, Aug 24, 2010

Filed:

Jun 26, 2006

Appl. No.:

11/426570

Inventors:

Steven Joseph Hand - San Jose CA, US
How Tung Lim - San Jose CA, US
Kasi Pydi Viswanadham - Bangalore, IN
Kiran Dintakurthi - Bangalore, IN

Assignee:

Infinera Corporation - Sunnyvale CA

International Classification:

G06F 15/173

US Classification:

709224

Abstract:

A system, apparatus and a method are described that synchronizes multiple element management systems with a network element. The synchronization between the management entities within the element is maintained by employing special attributes, such as sentry identification for managed objects and guard attributes for managed object tables. Using these attributes, resynchronization between the management systems is improved by reducing the amount of data retrieved by the systems and reducing the processing load caused by the resynchronization process.

US Patent:

7881612, Feb 1, 2011

Filed:

Jun 28, 2006

Appl. No.:

11/427319

Inventors:

Matthew L. Mitchell - Sunnyvale CA, US
Robert B. Taylor - Charleston SC, US
Alan C. Nilsson - Mountain View CA, US
Steven Joseph Hand - San Jose CA, US
Daniel P. Murphy - Ben Lomond CA, US

Assignee:

Infinera Corporation - Sunnyvale CA

International Classification:

H04B 10/08

US Classification:

398 34, 398 14, 398 25, 398 33

Abstract:

Optical autodiscovery is provide between two optical modules to insure that when an optical signal is coupled between the two optical module, the optical signal from a first module does not interfere with operation of a second module. The autodiscovery is implemented by sending an optical identification signal from the first optical module via the coupling to the second optical module from which signal, the second optical module can verify and determined acceptance of the coupled first optical module. During this autodiscovery process, the optical identification signal from the first optical module may be attenuated or shifted in optical spectrum so as not to interfere with the operation of the second optical module. Autodiscovery may also be employed in cases where a first optical module is to receive an optical signal from a second module.

US Patent:

8031704, Oct 4, 2011

Filed:

Oct 22, 2007

Appl. No.:

11/876705

Inventors:

Steven Joseph Hand - San Jose CA, US
Jayaram Hanumanthappa - Bangalore, IN
Mohit Misra - Bangalore, IN
Maneesh Jain - Dehradun, IN
Rajasekar Venkatesan - Saratoga CA, US
Atul Saxena - Bangalore, IN

Assignee:

Infinera Corporation - Sunnyvale CA

International Classification:

H04L 12/50
H04Q 11/00

US Classification:

370359

Abstract:

Embodiments of the present invention provide systems, devices and methods for improving the efficient deployment and configuration of networking equipment within a network build-out. In certain embodiments of the invention, an iterative analysis of inter-node equipment placement and connectivity, and inter- and intra-node traffic flow is performed to identify a preferred deployment solution. This analysis of deployment optimization takes into account both configurations from a network node perspective as well as from a network system perspective. Deployment solutions are iteratively progressed and analyzed to determine a preferred solution based on both the cost of deployment and satisfaction of the network demands. In various embodiments of the invention, a baseline marker is generated from which the accuracy of the solution may be approximated that suggests to an engineer whether the deployment is approaching an optimal solution.

US Patent:

8230414, Jul 24, 2012

Filed:

Jun 16, 2006

Appl. No.:

11/455125

Inventors:

Steven Joseph Hand - San Jose CA, US
Sriram Subramanian - Bangalore, IN

Assignee:

Infinera Corporation - Sunnyvale CA

International Classification:

G06F 9/44
G06F 9/445

US Classification:

717168, 717169, 717170, 717171, 717172, 717173, 717174, 717175, 717176, 717177, 717178

Abstract:

A system, apparatus and a method are described for providing efficient software distribution and cache management on a plurality of client machines in a network. In one embodiment of the invention, a cache management software agent is installed on one or more client machines to monitor a status of software versions stored locally on the machines. The cache management software agent performs a check before uploading a matching version of a large software application from a network element in order to determine whether the upload is appropriate. In particular, the agent identifies whether a matching version of the application is already present on the client machine to see if the upload is necessary. If a matching version of the application is not resident on the machine, then the latest version of the large software application is uploaded to the client machine from the network element.

US Patent:

20110243552, Oct 6, 2011

Filed:

Jan 31, 2011

Appl. No.:

13/017779

Inventors:

Matthew L. Mitchell - Sunnyvale CA, US
Robert B. Taylor - Charleston SC, US
Alan C. Nilsson - Mountain View CA, US
Steven Joseph Hand - San Jose CA, US
Daniel P. Murphy - Ben Lomond CA, US

International Classification:

H04B 10/08

US Classification:

398 14, 398 34, 398 33

Abstract:

Optical autodiscovery is provide between two optical modules to insure that when an optical signal is coupled between the two optical module, the optical signal from a first module does not interfere with operation of a second module. The autodiscovery is implemented by sending an optical identification signal from the first optical module via the coupling to the second optical module from which signal, the second optical module can verify and determined acceptance of the coupled first optical module. During this autodiscovery process, the optical identification signal from the first optical module may be attenuated or shifted in optical spectrum so as not to interfere with the operation of the second optical module. Autodiscovery may also be employed in cases where a first optical module is to receive an optical signal from a second module.

US Patent:

20120020246, Jan 26, 2012

Filed:

Oct 3, 2011

Appl. No.:

13/251625

Inventors:

STEVEN JOSEPH HAND - San Jose CA, US
Jayaram Hanumanthappa - Bangalora, IN
Mohit Misra - Bangalore, IN
Maneesh Jain - Dehradun, IN
Rajasekar Venkatesan - Saratoga CA, US
Atul Saxena - Bangalore, IN

International Classification:

H04L 12/28

US Classification:

370254

Abstract:

Embodiments of the present invention provide systems, devices and methods for improving the efficient deployment and configuration of networking equipment within a network build-out. In certain embodiments of the invention, an iterative analysis of inter-node equipment placement and connectivity, and inter- and intra-node traffic flow is performed to identify a preferred deployment solution. This analysis of deployment optimization takes into account both configurations from a network node perspective as well as from a network system perspective. Deployment solutions are iteratively progressed and analyzed to determine a preferred solution based on both the cost of deployment and satisfaction of the network demands. In various embodiments of the invention, a baseline marker is generated from which the accuracy of the solution may be approximated that suggests to an engineer whether the deployment is approaching an optimal solution.

US Patent:

20220376780, Nov 24, 2022

Filed:

Dec 24, 2021

Appl. No.:

17/561805

Inventors:

- San Jose CA, US
Steven J. Hand - San Jose CA, US
David F. Welch - San Jose CA, US

Assignee:

Infinera Corporation - San Jose CA

International Classification:

H04B 7/26
H04B 10/50
H04B 10/548
H04B 10/61
H04B 10/69
H04J 14/02
H04L 1/00
H04L 5/00
H04J 14/08
H04J 14/00
H04B 10/077
H04B 10/079
H04B 10/25
H04B 10/40
H04Q 11/00
H04B 10/2575
H04J 99/00

Abstract:

A network or system in which a hub or primary node may communicate with a plurality of leaf or secondary nodes. The hub node may operate or have a capacity greater than that of the leaf nodes. Accordingly, relatively inexpensive leaf nodes may be deployed to receive data carrying optical signals from, and supply data carrying optical signals to, the hub node. One or more connections may couple each leaf node to the hub node, whereby each connection may include one or more spans or segments of optical fibers, optical amplifiers, optical splitters/combiners, and optical add/drop multiplexer, for example. Optical subcarriers may be transmitted over such connections, each carrying a data stream. The subcarriers may be generated by a combination of a laser and a modulator, such that multiple lasers and modulators are not required, and costs may be reduced. As the bandwidth or capacity requirements of the leaf nodes change, the number of subcarriers, and thus the amount of data provided to each node, may be changed accordingly. Each subcarrier within a dedicated group of subcarriers may carry OAM or control channel information to a corresponding leaf node, and such information may be used by the leaf node to configure the leaf node to have a desired bandwidth or capacity.

US Patent:

20230006737, Jan 5, 2023

Filed:

Sep 9, 2022

Appl. No.:

17/941174

Inventors:

- San Jose CA, US
Kuang-Tsan Wu - Kanata, CA
David F. Welch - Atherton CA, US
Steven Joseph Hand - Los Gatos CA, US
Mohamed Osman - Ottawa, CA

Assignee:

Infinera Corporation - San Jose CA

International Classification:

H04B 7/26
H04B 10/50
H04B 10/548
H04B 10/61
H04B 10/69
H04J 14/02
H04L 1/00
H04L 5/00
H04J 14/08
H04J 14/00
H04B 10/077
H04B 10/079
H04B 10/25
H04B 10/40
H04Q 11/00
H04B 10/2575
H04J 99/00

Abstract:

A transmitter can include a laser operable to output an optical signal; a digital signal processor operable to receive user data and provide electrical signals based on the data; and a modulator operable to modulate the optical signal to provide optical subcarriers based on the electrical signals. A first one of the subcarriers carriers carries first TDMA encoded information and second TDMA encoded information, such that the first TDMA encoded information is indicative of a first portion of the data and is carried by the first one of the subcarriers during a first time slot, and the second TDMA encoded information is indicative of a second portion of the data and is carried by the first one of the subcarriers during a second time slot. The first TDMA encoded information is associated with a first node remote from the transmitter and the second TDMA encoded information is associated with a second node remote from the transmitter. A second one of the subcarriers carries third information that is not TDMA encoded, the third information being associated with a third node remote from the transmitter. A receiver and system also are described.