Patents by Inventor James H. Buchanan
James H. Buchanan 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: 8385342Abstract: A system of route target filtering includes an import filter receiving a plurality of routes having a next hop routing information. The import filter accepts a first subset of the routes according to an import target policy. The system further includes a re-export filter also receiving the plurality of routes. The re-export filter modifies the next hop information of a second subset of the routes, and distributes the modified routes.Type: GrantFiled: January 11, 2002Date of Patent: February 26, 2013Assignee: Fujitsu LimitedInventors: Li Mo, James H. Buchanan, Robert T. Gibson, Nimer Yaseen
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Patent number: 8014283Abstract: A system and method for topology constrained Quality of Service (QoS) provisioning between a plurality of sites in a Virtual Private Network (VPN) is disclosed. The method comprises enabling graphical definition of relationships between the plurality of sites of the VPN and enabling graphical definition of at least one QoS rule for at least one pair of sites of the plurality of sites of the VPN based at least in part on the defined relationship.Type: GrantFiled: April 29, 2002Date of Patent: September 6, 2011Assignee: Fujitsu LimitedInventors: Robert T. Gibson, James H. Buchanan, Lawrence MacFadyen, Ross MacCharles, Mark Jamensky
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Patent number: 7450505Abstract: A system and method for topology constrained routing policy provisioning between a plurality of sites in a Virtual Private Network (VPN) is disclosed. The method comprises enabling graphically defining of relationships between the plurality of sites of the VPN; and automatically generating at least one routing rule for each site of the VPN based at least in part on the defined relationship.Type: GrantFiled: February 7, 2002Date of Patent: November 11, 2008Assignee: Fujitsu LimitedInventors: James H. Buchanan, Li Mo, Robert T. Gibson, Alexander Choi
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Patent number: 7245635Abstract: A method for allocating and resizing a link on a communication medium is provided. The utilization of an allocated link is monitored and an unused bandwidth thereof is determined. Upon request for allocation of a second link, at least a portion of the unused bandwidth is included in the bandwidth of the second link allocated. A network including two nodes and a communication medium terminated thereby is operable to provide a plurality of communication links and is operable to resize the bandwidth of the allocated links is provided. The network is operable to monitor the utilization of an allocated bandwidth of an allocated link and deallocate a part of the allocated bandwidth that is non-utilized by the allocated link. The deallocated bandwidth, or a portion thereof, may then be included in a bandwidth allocation made for allocation of an additional link.Type: GrantFiled: October 15, 2001Date of Patent: July 17, 2007Assignee: Fujitsu LimitedInventors: Li Mo, James A. Spallin, Jennifer J. Liu, Abinder S. Dhillon, James H. Buchanan, Badarinath Devalla
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Patent number: 6665674Abstract: Methods and apparatus are provided for processing messages for access to information stored in an open directory. A Lightweight Directory Access Protocol (LDAP) LDAP Validation Proxy (LVP) is used to intercept LDAP request messages intended for the directory, validates the LDAP requests according to a schema description and optionally provides side-effects. The schema validation and LDAP message processing is modularized according to object classes representing the data stored in the directory and according to services provided. The schema is enforced by validating LDAP messages. This modularization provides a controlled message processing granularity and enables multi-threaded concurrent processing of multiple LDAP messages. The LVP has the capability of generating LDAP requests in processing LDAP messages. The LVP also intercepts and processes LDAP responses issued by a directory and intended for clients.Type: GrantFiled: February 2, 2000Date of Patent: December 16, 2003Assignee: Nortel Networks LimitedInventors: James H. Buchanan, Robert T. Gibson, Bruce E. Dunn, Brian D. Connell, Ian A. Macfarlane, Scott E. Miller
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Publication number: 20030208433Abstract: A system and a method to implement a three sectored business model that facilitates the trading of bandwidth as a commodity. One sector includes resource entities that require or generate the resource or commodity to be traded—bandwidth. Another sector includes bandwidth enabling entities that neutrally provide a pool of bandwidth that can be obtained from a variety of resource entities in a competitive manner. The last sector includes trading companies that interface with resource entities, bandwidth enabling entities, or traders, and facilitate the trading of the bandwidth based on the availability of the bandwidth from one or more bandwidth enabling entities or resource entities. A core engine operates as the central controller and data exchange source for facilitating the execution of trades between and for all entities, provisioning of connections, monitoring of the network, sharing and feedback of data to relative subsystems, and provide data control abilities to subscribing entities.Type: ApplicationFiled: December 12, 2000Publication date: November 6, 2003Inventors: Paul Haddad, Stephen J. Harris, Miguel A. Planas, Sieghard Maier, Margaret A. Plucinska, James H. Buchanan
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Publication number: 20030072264Abstract: A method for allocating and resizing a link on a communication medium is provided. The utilization of an allocated link is monitored and an unused bandwidth thereof is determined. Upon request for allocation of a second link, at least a portion of the unused bandwidth is included in the bandwidth of the second link allocated. A network including two nodes and a communication medium terminated thereby is operable to provide a plurality of communication links and is operable to resize the bandwidth of the allocated links is provided. The network is operable to monitor the utilization of an allocated bandwidth of an allocated link and deallocate a part of the allocated bandwidth that is non-utilized by the allocated link. The deallocated bandwidth, or a portion thereof, may then be included in a bandwidth allocation made for allocation of an additional link.Type: ApplicationFiled: October 15, 2001Publication date: April 17, 2003Applicant: Fujitsu NetworksInventors: Li Mo, James A. Spallin, Jennifer J. Liu, Abinder S. Dhillon, James H. Buchanan, Badarinath Devalla
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Publication number: 20020191541Abstract: A system and method for topology constrained routing policy provisioning between a plurality of sites in a Virtual Private Network (VPN) is disclosed. The method comprises enabling graphically defining of relationships between the plurality of sites of the VPN; and automatically generating at least one routing rule for each site of the VPN based at least in part on the defined relationship.Type: ApplicationFiled: February 7, 2002Publication date: December 19, 2002Applicant: Fujitsu Network Communications, Inc.Inventors: James H. Buchanan, Li Mo, Robert T. Gibson, Alexander Choi
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Publication number: 20020186664Abstract: A system and method for topology constrained Quality of Service (QoS) provisioning between a plurality of sites in a Virtual Private Network (VPN) is disclosed. The method comprises enabling graphical definition of relationships between the plurality of sites of the VPN and enabling graphical definition of at least one QoS rule for at least one pair of sites of the plurality of sites of the VPN based at least in part on the defined relationship.Type: ApplicationFiled: April 29, 2002Publication date: December 12, 2002Applicant: Fujitsu Network Communications, Inc.Inventors: Robert T. Gibson, James H. Buchanan, Lawrence MacFadyen, Ross MacCharles, Mark Jamensky
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Publication number: 20020181477Abstract: A system of route target filtering includes an import filter receiving a plurality of routes having a next hop routing information. The import filter accepts a first subset of the routes according to an import target policy. The system further includes a re-export filter also receiving the plurality of routes. The re-export filter modifies the next hop information of a second subset of the routes, and distributes the modified routes.Type: ApplicationFiled: January 11, 2002Publication date: December 5, 2002Applicant: Fujitsu Network Communications, Inc.Inventors: Li Mo, James H. Buchanan, Robert T. Gibson, Nimer Yaseen
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Patent number: 5143621Abstract: An improved method of decontaminating a solvent which contains mustard. The mprovement consists essentially of using polydivinylbenzene to absorb the said mustard.Type: GrantFiled: June 17, 1991Date of Patent: September 1, 1992Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Philip W. Bartram, Noel C. DiBona, James H. Buchanan, Dennis K. Rohrbaugh
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Patent number: 5069797Abstract: A polydivinylbenezene macroreticular strong acid resin can effectively detaminate solutions containing organophosphorus chemical warfare agents such as o-ethyl S-(2-diisopropylaminoethyl) methylphosphonothiolate (VX).Type: GrantFiled: January 3, 1991Date of Patent: December 3, 1991Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Philip W. Bartram, Noel C. DiBona, James H. Buchanan, Dennis K. Rohrbaugh