Patents Examined by Jeffrey Rutkowski
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Patent number: 8040893Abstract: The invention comprises a method for establishing a connection between a begin node and an end node in which parallel transmission and processing of connection request messages is used to minimize the dependency of connection setup time on connection path length.Type: GrantFiled: August 11, 2004Date of Patent: October 18, 2011Assignee: Alcatel LucentInventor: Florin-Josef Lataretu
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Patent number: 8036104Abstract: Techniques for supporting fault tolerance in communications systems are described. Fault notification messages are communicated which may be affected by a detected/reported service disruption. End nodes receiving a fault notification message determine if the message indicates a disruption in a node that is critical to the end node receiving the message. If the indicated disruption is in a critical node, the end node takes action to ameliorate the effect of the reported condition. Fault notification messages indicating disruptions in nodes which are not critical to the end node receiving the fault notification message may be ignored once it is determined that the indicated disruption is in a node which is not critical to the end node receiving the message. The invention described herein minimizes service disruption following fault, failure or outage of critical network nodes, improving overall system robustness and resiliency.Type: GrantFiled: July 14, 2003Date of Patent: October 11, 2011Assignee: QUALCOMM IncorporatedInventors: M. Scott Corson, Samir Kapoor, Rajiv Laroia, Vincent Park, Arthur Stephens
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Patent number: 8036143Abstract: Information may be transferred between dissimilar communication devices through a common interface. The common interface may operate on the dissimilar communication devices in accordance with aspects of the dissimilar communication devices that have been abstracted.Type: GrantFiled: January 3, 2004Date of Patent: October 11, 2011Assignee: Cisco Technology, Inc.Inventors: Daniel Lovy, David Arfin, Elliot Lovy, Edward M. Sesek, Nathaniel Mark Saal, Steven J. Schwarzenbach, Seth Godin
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Patent number: 8005088Abstract: A management system manages multiple multi-protocol label switching (MPLS) virtual private networks (VPNs), the VPNs having overlapping IP addresses. The system includes a storage storing a file that associates a host name with an IP address and a route distinguisher. The host name corresponds to a network element within one of the customer VPNs. The system also includes a label obtaining system that obtains at least one label for the host name based upon the associated IP address and route distinguisher. The system also has a packet construction system that creates packets destined for the network element using the obtained label(s).Type: GrantFiled: January 17, 2006Date of Patent: August 23, 2011Assignee: AT&T Intellectual Property I, L.P.Inventors: Mark Elias, Jae-Sun Chin, Sherry Soja-Molloy
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Patent number: 8005019Abstract: A system and method optimizes the information flow regarding node location across a network by controlling the propagation of this information based on distance from the node. Location servers that are near to a node receive detailed information regarding the node's location; location servers that are farther from the node receive less detailed information. In like manner, periodic updates are provided less frequently to distant location servers, and preferably also based on the velocity of a mobile node, or on a priority associated with the mobile node. The location information provided in a message addressed to a node can be minimal when the message is transmitted, and additional detail can be added to this location information by routing nodes as the message is routed closer to its destination, based on information provided by the location servers.Type: GrantFiled: May 10, 2005Date of Patent: August 23, 2011Assignee: OPNET Technologies, Inc.Inventor: Alain J. Cohen
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Patent number: 7990975Abstract: A fibre channel switch element and method for routing fibre channel frames is provided. The switch element includes a receive segment that can add a virtual storage area network (“VSAN”) tagging header to frames that are received by the receive segment; and strip the VSAN tagging header before frames are sent to ports that do not support virtual fabric capability. The receive segment includes a table used for matching fabric extension parameters. An incoming frame's VSAN identity value is compared to a control word entry to generate a value used for routing the incoming frame. The table is used to determine if a frame is part of a virtual fabric. The routing table for each port is used to route frames and the routing table includes entries for supported virtual fabrics.Type: GrantFiled: February 1, 2010Date of Patent: August 2, 2011Assignee: QLOGIC, CorporationInventors: Frank R. Dropps, Craig M. Verba, Gary M. Papenfuss, Ernest G. Kohlwey, Edward C. Ross
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Patent number: 7613141Abstract: The present invention provides an efficient data transmission method in BLUETOOTH broadcasting. The method of BLUETOOTH broadcasting generates a first broadcast packet and determines whether a slot is included in an access window. In a case where the slot is not included in the access window, a service interface (SI) information value is set to the assignment information of the slot. The first broadcast packet is then transmitted. A second broadcast packet is then generated and it is determined whether a slot is included in the access window. If the slot is not included in the access window, the SI information value is set to zero. The second broadcast packet is then transmitted. A slave receives the broadcast packets and obtains the SI information values. It is then determined whether the slave transmits data at the next odd numbered slot.Type: GrantFiled: December 15, 2003Date of Patent: November 3, 2009Assignee: Electronics and Telecommunications Research InstituteInventors: Jeen Hur, Sangbaek Han, Sun-Hee Kim, Seong-Su Park