Patents by Inventor David A. Hotham
David A. Hotham 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: 11539612Abstract: According to a first aspect, there is provided a method of testing a plurality of virtual network functions (VNFs) during commissioning of the plurality of VNFs in a virtualized environment in a customer network, the method comprising: at a VNF testing component configured to have access to the virtualized environment of the customer network, performing interoperability testing between a first VNF component instantiation (VNFCI) within a first VNF of the plurality of VNFs and a second VNFCI within a second VNF of the plurality of VNFs, the second VNF being different from the first VNF, the first VNF and the second VNF comprising a subset of VNFs within the plurality of VNFs, wherein performing the interoperability testing comprises: instructing the first VNFCI to interoperate directly with the second VNFCI in a predetermined manner; and determining whether the second VNFCI reacts to the instructed direct interoperation in an expected manner.Type: GrantFiled: April 16, 2020Date of Patent: December 27, 2022Assignee: Metaswitch Networks LtdInventors: Andrew Lee, David Hotham, Joe Powell, Philip Davies, Michael Duppre, Jamie Parsons, Steve Orbell
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Patent number: 11425203Abstract: Certain aspects provide a method of commissioning a virtualized network function (VNF), including: at a commissioning virtual machine instantiated in a virtualized environment of a customer network, configuring a remote access connection facility for accessing the commissioning virtual machine remotely from outside of the customer network, wherein the commissioning virtual machine has access to a virtual infrastructure manager (VIM) component of the virtualized environment; causing, via the remote access connection facility, configuration of a VNF manager component within the commissioning virtual machine; and causing, via the remote access connection facility, the configured VNF manager component to instruct the VIM component to instantiate one or more virtual machines in the virtualized environment, the one or more virtual machines being operable to perform at least a part of the VNF.Type: GrantFiled: April 16, 2020Date of Patent: August 23, 2022Assignee: METASWITCH NETWORKS LTDInventors: Andrew Lee, David Hotham, Joe Powell, Philip Davies, Michael Duppre, Jamie Parsons, Steve Orbell
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Patent number: 11070678Abstract: Measures are provided for use in establishing a telephony session between first and second telephony devices in a telephony network. Telephony network equipment in the telephony network receives, from the first telephony device over a signalling link, a telephony session establishment request. The telephony network equipment receives, from the first telephony device over a data link that is separate to the signalling link, a message comprising data useable by the telephony network equipment to identify the second telephony device. The telephony network equipment correlates the received telephony session establishment request and the received message. The telephony network equipment transmits, to the second telephony device, a telephony session establishment request on the basis of the correlating. The first telephony device is associated with a multi-persona user having a first persona associated with a first telephony identifier and a second persona associated with a second telephony identifier.Type: GrantFiled: March 4, 2020Date of Patent: July 20, 2021Assignee: Metaswitch Networks Ltd.Inventors: David Hotham, Richard Underwood, Andrew Robinson Hodges
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Publication number: 20200344144Abstract: According to a first aspect, there is provided a method of testing a plurality of virtual network functions (VNFs) during commissioning of the plurality of VNFs in a virtualized environment in a customer network, the method comprising: at a VNF testing component configured to have access to the virtualized environment of the customer network, performing interoperability testing between a first VNF component instantiation (VNFCI) within a first VNF of the plurality of VNFs and a second VNFCI within a second VNF of the plurality of VNFs, the second VNF being different from the first VNF, the first VNF and the second VNF comprising a subset of VNFs within the plurality of VNFs, wherein performing the interoperability testing comprises: instructing the first VNFCI to interoperate directly with the second VNFCI in a predetermined manner; and determining whether the second VNFCI reacts to the instructed direct interoperation in an expected manner.Type: ApplicationFiled: April 16, 2020Publication date: October 29, 2020Inventors: Andrew Lee, David Hotham, Joe Powell, Philip Davies, Michael Duppre, Jamie Parsons, Steve Orbell
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Publication number: 20200344305Abstract: Certain aspects provide a method of commissioning a virtualized network function (VNF), including: at a commissioning virtual machine instantiated in a virtualized environment of a customer network, configuring a remote access connection facility for accessing the commissioning virtual machine remotely from outside of the customer network, wherein the commissioning virtual machine has access to a virtual infrastructure manager (VIM) component of the virtualized environment; causing, via the remote access connection facility, configuration of a VNF manager component within the commissioning virtual machine; and causing, via the remote access connection facility, the configured VNF manager component to instruct the VIM component to instantiate one or more virtual machines in the virtualized environment, the one or more virtual machines being operable to perform at least a part of the VNF.Type: ApplicationFiled: April 16, 2020Publication date: October 29, 2020Inventors: Andrew LEE, David HOTHAM, Joe POWELL, Philip DAVIES, Michael DUPPRE, Jamie PARSONS, Steve ORBELL
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Publication number: 20200204683Abstract: Measures are provided for use in establishing a telephony session between first and second telephony devices in a telephony network. Telephony network equipment in the telephony network receives, from the first telephony device over a signalling link, a telephony session establishment request. The telephony network equipment receives, from the first telephony device over a data link that is separate to the signalling link, a message comprising data useable by the telephony network equipment to identify the second telephony device. The telephony network equipment correlates the received telephony session establishment request and the received message. The telephony network equipment transmits, to the second telephony device, a telephony session establishment request on the basis of the correlating. The first telephony device is associated with a multi-persona user having a first persona associated with a first telephony identifier and a second persona associated with a second telephony identifier.Type: ApplicationFiled: March 4, 2020Publication date: June 25, 2020Inventors: David HOTHAM, Richard UNDERWOOD, Andrew ROBINSON HODGES
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Patent number: 10623579Abstract: Measures are provided for use in establishing a telephony session between first and second telephony devices in a telephony network. Telephony network equipment in the telephony network receives, from the first telephony device over a signalling link, a telephony session establishment request. The telephony network equipment receives, from the first telephony device over a data link that is separate to the signalling link, a message comprising data useable by the telephony network equipment to identify the second telephony device. The telephony network equipment correlates the received telephony session establishment request and the received message. The telephony network equipment transmits, to the second telephony device, a telephony session establishment request on the basis of the correlating. The first telephony device is associated with a multi-persona user having a first persona associated with a first telephony identifier and a second persona associated with a second telephony identifier.Type: GrantFiled: May 14, 2019Date of Patent: April 14, 2020Assignee: Metaswitch Networks Ltd.Inventors: David Hotham, Richard Underwood, Andrew Robinson Hodges
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Patent number: 10498903Abstract: Measures are provided for use in establishing a telephony session between first and second telephony devices in a telephony network. Telephony network equipment in the telephony network receives, from the first telephony device over a signalling link, a telephony session establishment request. The telephony network equipment receives, from the first telephony device over a data link that is separate to the signalling link, a message comprising data useable by the telephony network equipment to identify the second telephony device. The telephony network equipment correlates the received telephony session establishment request and the received message. The telephony network equipment transmits, to the second telephony device, a telephony session establishment request on the basis of the correlating. The first telephony device is associated with a multi-persona user having a first persona associated with a first telephony identifier and a second persona associated with a second telephony identifier.Type: GrantFiled: July 13, 2018Date of Patent: December 3, 2019Assignee: Metaswitch Networks LtdInventors: David Hotham, Richard Underwood, Andrew Robinson Hodges
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Publication number: 20190268477Abstract: Measures are provided for use in establishing a telephony session between first and second telephony devices in a telephony network. Telephony network equipment in the telephony network receives, from the first telephony device over a signalling link, a telephony session establishment request. The telephony network equipment receives, from the first telephony device over a data link that is separate to the signalling link, a message comprising data useable by the telephony network equipment to identify the second telephony device. The telephony network equipment correlates the received telephony session establishment request and the received message. The telephony network equipment transmits, to the second telephony device, a telephony session establishment request on the basis of the correlating. The first telephony device is associated with a multi-persona user having a first persona associated with a first telephony identifier and a second persona associated with a second telephony identifier.Type: ApplicationFiled: May 14, 2019Publication date: August 29, 2019Inventors: David HOTHAM, Richard UNDERWOOD, Andrew ROBINSON HODGES
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Publication number: 20190068789Abstract: Measures are provided for use in establishing a telephony session between first and second telephony devices in a telephony network. Telephony network equipment in the telephony network receives, from the first telephony device over a signalling link, a telephony session establishment request. The telephony network equipment receives, from the first telephony device over a data link that is separate to the signalling link, a message comprising data useable by the telephony network equipment to identify the second telephony device. The telephony network equipment correlates the received telephony session establishment request and the received message. The telephony network equipment transmits, to the second telephony device, a telephony session establishment request on the basis of the correlating. The first telephony device is associated with a multi-persona user having a first persona associated with a first telephony identifier and a second persona associated with a second telephony identifier.Type: ApplicationFiled: July 13, 2018Publication date: February 28, 2019Inventors: David Hotham, Richard Underwood, Andrew Robinson Hodges
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Patent number: 9311073Abstract: Method, apparatus and computer program product for use in the upgrade of nodes in a group of nodes in a data communications network. One or more nodes in the group to which a given upgrade is yet to be applied are identified. A given node is selected from amongst the identified one or more nodes to which the given upgrade is yet to be applied as the leader node for the group. Data is transmitted indicating the selection of the given node as the leader node. The upgrade proceeds with the given node as the leader node.Type: GrantFiled: August 21, 2013Date of Patent: April 12, 2016Assignee: METASWITCH NETWORKS LTD.Inventors: David Hotham, Jon Rowland
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Publication number: 20140059532Abstract: Method, apparatus and computer program product for use in the upgrade of nodes in a group of nodes in a data communications network. One or more nodes in the group to which a given upgrade is yet to be applied are identified. A given node is selected from amongst the identified one or more nodes to which the given upgrade is yet to be applied as the leader node for the group. Data is transmitted indicating the selection of the given node as the leader node. The upgrade proceeds with the given node as the leader node.Type: ApplicationFiled: August 21, 2013Publication date: February 27, 2014Inventors: David HOTHAM, Jon ROWLAND
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Publication number: 20140059154Abstract: Method, apparatus and computer program product for appointing a leader node from a group of nodes in a data communications network. Attribute data comprising status information of one or more nodes in the group is received. At least one attribute associated with the one or more nodes in the group is identified based at least in part on the received attribute data. A given node in the group is appointed, on behalf of the group, to be the leader node when status information has been received for nodes in the group. The appointment is based at least in part on identifying at least one attribute associated with the given node that it is desirable for the leader node to possess. Appointment announcement data announcing that the given node has been appointed as the leader node on behalf of the group is transmitted.Type: ApplicationFiled: August 21, 2013Publication date: February 27, 2014Inventor: David HOTHAM
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Publication number: 20060251211Abstract: A system for inspecting an enclosure. A source generates a beam of penetrating radiation that is characterized, at each instant of time, by a power spectrum of intensity as a function of energy. A first module conveys the source along the length of the enclosure while a detector, coupled so as to move in coordination with the first module, detects the beam of penetrating radiation after the beam interacts with the object and generating a detector signal. A beam shaper modifies the instantaneous power spectrum of the beam of penetrating radiation. The first module and the detector may be coupled by a gantry straddling the enclosure. Other modules may be coupled to move with the first module.Type: ApplicationFiled: March 7, 2006Publication date: November 9, 2006Inventors: Lee Grodzins, Peter Rothschild, Louis Perich, David Montion, David Hotham
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Patent number: 5313846Abstract: A sample introduction valve for spectrometers for selectively directing sample flow from two or more sources in which a slideably mounted shuttle provides in one position a pass through for one source and a by-pass for the other source and in a second position the opposite result.Type: GrantFiled: June 10, 1991Date of Patent: May 24, 1994Assignee: Leeman Labs Inc.Inventors: David A. March, Peter G. Brown, David A. Hotham