Patents by Inventor Luca Valcarenghi

Luca Valcarenghi 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).

  • Patent number: 8855483
    Abstract: A method of restoration for an optical network, the network comprising a plurality of nodes (40, 50) interconnected with each other by optical links (130), a subset of the nodes (40) each comprising a regenerator, the method comprising: storing 160) a quality of transmission parameter and a regenerator availability at each of the plurality of nodes (40, 50); notifying (170) a branch node (110) in response to detecting a failure (140) within a link (130) forming part of the path between a source node (20) and a destination node (30), wherein the branch node (110) is the neighbouring upstream node (40, 50) upstream of the link failure (140), the branch node (110) having a regenerator; the branch node (110) computing (190) a restoration segment (100) to a merge node (120) having a regenerator which is a neighbouring downstream node which is downstream of the link failure (140), the restoration path (100) being based on the quality of transmission parameter and regenerator availability information; restoring (180
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: October 7, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Piero Castoldi, Filippo Cugini, Nicola Sambo, Isabella Cerutti, Alessio Giorgetti, Luca Valcarenghi
  • Patent number: 8576720
    Abstract: A method of load balancing zero-bandwidth Traffic Engineering Label Switching Paths (0-bw TE LSPs) in a communication network having a plurality of network nodes and a plurality of network links connecting the nodes. The method may be implemented in a centralized Path Computation Element (PCE) or in an ingress router. Each equal cost path from a source node to a destination node is identified from network topology information. A probability of selecting each equal cost shortest path is determined using an iterative Global Load balancing Algorithm (GLA) and each 0-bw TE LSP is provisioned with a specific probability such that the 0-bw TE LSPs are uniformly distributed over all network links.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: November 5, 2013
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Filippo Cugini, Annikki Welin, Luca Valcarenghi, Piero Castoldi, Francesco Paolucci
  • Patent number: 8485328
    Abstract: A travel accessory for the folding of garments inside a suitcase, includes at least one structural element for spreading and/or hanging (1) and an insert (2) of a soft, flexible material, designed to be inserted into the garment, engaged with the structural element (1).
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: July 16, 2013
    Assignee: Armeria Meschieri S.A.S. di Luca Valcarenghi & C.
    Inventor: Luca Valcarenghi
  • Publication number: 20120002550
    Abstract: A method of load balancing zero-bandwidth Traffic Engineering Label Switching Paths (0-bw TE LSPs) in a communication network having a plurality of network nodes and a plurality of network links connecting the nodes. The method may be implemented in a centralized Path Computation Element (PCE) or in an ingress router. Each equal cost path from a source node to a destination node is identified from network topology information. A probability of selecting each equal cost shortest path is determined using an iterative Global Load balancing Algorithm (GLA) and each 0-bw TE LSP is provisioned with a specific probability such that the 0-bw TE LSPs are uniformly distributed over all network links.
    Type: Application
    Filed: May 14, 2009
    Publication date: January 5, 2012
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Filippo Cugini, Annikki Welin, Luca Valcarenghi, Piero Castoldi, Francesco Paolucci
  • Publication number: 20110229122
    Abstract: A method of restoration for an optical network, the network comprising a plurality of nodes (40, 50) interconnected with each other by optical links (130), a subset of the nodes (40) each comprising a regenerator, the method comprising: storing (160) a quality of transmission parameter and a regenerator availability at each of the plurality of nodes (40, 50); notifying (170) a branch node (110) in response to detecting a failure (140) within a link (130) forming part of the path between a source node (20) and a destination node (30), wherein the branch node (110) is the neighbouring upstream node (40, 50) upstream of the link failure (140), the branch node (110) having a regenerator; the branch node (110) computing (190) a restoration segment (100) to a merge node (120) having a regenerator which is a neighbouring downstream node which is downstream of the link failure (140), the restoration path (100) being based on the quality of transmission parameter and regenerator availability information; restoring (18
    Type: Application
    Filed: September 19, 2008
    Publication date: September 22, 2011
    Inventors: Piero Castoldi, Filippo Cugini, Nicola Sambo, Isabella Cerutti, Alessio Giorgetti, Luca Valcarenghi
  • Publication number: 20110120824
    Abstract: A travel accessory for the folding of garments inside a suitcase, includes at least one structural element for spreading and/or hanging (1) and an insert (2) of a soft, flexible material, designed to be inserted into the garment, engaged with the structural element (1).
    Type: Application
    Filed: July 20, 2009
    Publication date: May 26, 2011
    Applicant: ARMERIA MESCHIERI S.A.S. DI LUCA VALCARENGHI & C.
    Inventor: Luca Valcarenghi
  • Patent number: 7460783
    Abstract: Method and apparatus for dynamic provisioning of reliable connections in the presence of multiple failures in optical networks are described. One embodiment is a method for allocation of protection paths after a failure in an optical network. The method comprises, responsive to a failure in an active lightpath, switching traffic on the active lightpath to a protection path; subsequent to the switching, identifying all active lightpaths in the network that no longer have an available protection path; and attempting to allocate a protection path to each of the identified active lightpaths.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: December 2, 2008
    Assignee: Alcatel Lucent
    Inventors: Andrea Fumagalli, Sandeep Darisala, Parthasarathy Kothandaraman, Marco Tacca, Luca Valcarenghi, Maher Ali, David Eli-Dit-Cosaque
  • Publication number: 20040170426
    Abstract: Method and apparatus for dynamic provisioning of reliable connections in the presence of multiple failures in optical networks are described. One embodiment is a method for allocation of protection paths after a failure in an optical network. The method comprises, responsive to a failure in an active lightpath, switching traffic on the active lightpath to a protection path; subsequent to the switching, identifying all active lightpaths in the network that no longer have an available protection path; and attempting to allocate a protection path to each of the identified active lightpaths.
    Type: Application
    Filed: October 2, 2003
    Publication date: September 2, 2004
    Inventors: Andrea Fumagalli, Sandeep Darisala, Parthasarathy Kothandaraman, Marco Tacca, Luca Valcarenghi, Maher Ali, David Eli-Dit-Cosaque