Patents by Inventor Thomas Dietz
Thomas Dietz 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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Publication number: 20190319880Abstract: A method operates a software defined network that has a number of data plane elements having flow table entries that define forwarding functions of the data plane elements; and at least one control plane element for programming the forwarding functions of the data plane elements by instructing the data plane elements to install appropriate flow table entries. The method includes: obtaining, by the data plane elements, flow table entry installation time information and making this information available directly or indirectly to the at least one control plane element; and using, by the at least one control plane element, the flow table entry installation time information for deciding on which of the data plane elements to install a particular flow table entry and/or when to transmit an instruction to one or more of the data plane elements to install a particular flow table entry.Type: ApplicationFiled: December 22, 2016Publication date: October 17, 2019Inventors: Fabian Schneider, Alessio Silvestro, Thomas Dietz
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Patent number: 10389623Abstract: A packet data network includes a flow-based programmable network device. The flow-based programmable network device includes a data plane having a plurality of input and output ports, a control interface and forwarding rules that map packets received on one of the input ports to one of the output ports based on a packet matching a rule in the forwarding rules. A controller entity is configured to program the flow-based programmable network device via the control interface. The flow-based programmable network device has a connection via the data plane to at least one delegated entity which is a network device configured to process network traffic on behalf of the flow-based programmable network device in a transparent manner from a perspective of the controller entity.Type: GrantFiled: March 12, 2013Date of Patent: August 20, 2019Assignee: NEC CORPORATIONInventors: Roberto Bifulco, Thomas Dietz, Stavros Konstantaras
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Patent number: 10006169Abstract: Process for the delignification and bleaching of pulp, comprising a first bleaching stage with hydrogen peroxide in the presence of a molybdate or tungstate in an acidic aqueous mixture; subsequent to the first bleaching stage, a second bleaching stage with hydrogen peroxide in an alkaline aqueous mixture; and, subsequent to the second bleaching stage, a third bleaching stage with hydrogen peroxide in the presence of a molybdate or tungstate in an acidic aqueous mixture.Type: GrantFiled: October 15, 2014Date of Patent: June 26, 2018Assignee: Evonik Degussa GmbHInventors: Thomas Dietz, Bernd Hopf, Ralf Grimmer, Sigrid Wegmann, Verena Illhardt
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Patent number: 10009267Abstract: A method for controlling an underlying physical network by a software defined network includes providing a physical network that comprises routers for routing data traffic on a data communication plane, providing a software defined network that comprises at least one controller and at least one feature on a control plane for controlling the data forwarding elements of the physical network, communicating, by the data forwarding elements of the data communication plane, with the controller of the control plane on a dedicated control channel, communicating, by the controller, with the at least one feature on a dedicated feature channel in the control plane, and exchanging, via the data communication plane, at least a portion of the data traffic in the control plane.Type: GrantFiled: March 13, 2013Date of Patent: June 26, 2018Assignee: NEC CORPORATIONInventors: Nico D'Heureuse, Peer Hasselmeyer, Thomas Dietz, Fabian Schneider, Marcus Schoeller, Sibylle Schaller
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Patent number: 9479435Abstract: A method for supporting transport of data packets in a network, wherein the data packets are transmitted from a source node to a destination node by employing a tunnel from a first tunnel endpoint to a second tunnel endpoint, wherein a tunnel header is added to the data packets at the first tunnel endpoint, wherein the data packets are transmitted between the tunnel endpoints via a network domain that includes one or more intermediate nodes functioning as transport network, and wherein the intermediate nodes forward the data packets, is characterized in that the tunnel is provided in the form of a virtual tunnel by removing the tunnel header from the data packets where the data packets enter the network domain and adding back the tunnel header to the data packets where the data packets exit the network domain. A corresponding system for supporting transport of data packets is disclosed.Type: GrantFiled: November 8, 2012Date of Patent: October 25, 2016Assignee: NEC CORPORATIONInventors: Hans-Joerg Kolbe, Andreas Kunz, Thomas Dietz, Surendran Palanimuthu
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Publication number: 20160298294Abstract: Process for delignifying and bleaching pulp Process for the delignification and bleaching of pulp, comprising a first bleaching stage with hydrogen peroxide in the presence of a molybdate or tungstate in an acidic aqueous mixture; subsequent to the first bleaching stage, a second bleaching stage with hydrogen peroxide in an alkaline aqueous mixture; and, subsequent to the second bleaching stage, a third bleaching stage with hydrogen peroxide in the presence of a molybdate or tungstate in an acidic aqueous mixture.Type: ApplicationFiled: October 15, 2014Publication date: October 13, 2016Applicant: Evonik Degussa GmbHInventors: Thomas DIETZ, Bernd HOPF, Ralf GRIMMER, Sigrid WEGMANN, Verena ILLHARDT
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Publication number: 20160043941Abstract: A method for controlling an underlying physical network by a software defined network includes providing a physical network that comprises routers for routing data traffic on a data communication plane, providing a software defined network that comprises at least one controller and at least one feature on a control plane for controlling the data forwarding elements of the physical network, communicating, by the data forwarding elements of the data communication plane, with the controller of the control plane on a dedicated control channel, communicating, by the controller, with the at least one feature on a dedicated feature channel in the control plane, and exchanging, via the data communication plane, at least a portion of the data traffic in the control plane.Type: ApplicationFiled: March 13, 2013Publication date: February 11, 2016Inventors: Nico D'Heureuse, Peer Hasselmeyer, Thomas Dietz, Fabian Schneider, Marcus Schoeller, Sibylle Schaller
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Publication number: 20160020998Abstract: A packet data network includes a flow-based programmable network device. The flow-based programmable network device includes a data plane having a plurality of input and output ports, a control interface and forwarding rules that map packets received on one of the input ports to one of the output ports based on a packet matching a rule in the forwarding rules. A controller entity is configured to program the flow-based programmable network device via the control interface. The flow-based programmable network device has a connection via the data plane to at least one delegated entity which is a network device configured to process network traffic on behalf of the flow-based programmable network device in a transparent manner from a perspective of the controller entity.Type: ApplicationFiled: March 12, 2013Publication date: January 21, 2016Inventors: Roberto BIFULCO, Thomas Dietz, Stavros Konstantaras
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Publication number: 20150007951Abstract: In a delignification of pulp with hydrogen peroxide catalyzed by molybdate, molybdate can be recovered by contacting the molybdate-containing aqueous solution at a pH in the range from 2 to 7 with a carrier material comprising a sheet silicate been ion-exchanged with a quaternary ammonium salt and subsequent flotation without a surfactant having to be added for flotation.Type: ApplicationFiled: December 19, 2012Publication date: January 8, 2015Applicant: Evonik Industries AGInventors: Thomas Dietz, Bernd Hopf, Ralf Grimmer
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Patent number: 8920251Abstract: An amusement ride has a retaining structure and at least one platform that is connected in an articulated manner to retaining elements which hold the at least one platform on the retaining structure. The retaining elements are cables which are under tensile stress during operation of the amusement ride. The cables have an effective length and the effective length of the cables is variable. Cable winches disposed on the retaining structure are provided that wind the cables.Type: GrantFiled: September 20, 2012Date of Patent: December 30, 2014Inventors: Thomas Dietz, Andreas Pott, Gino De-Gol, Alexander Verf
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Publication number: 20140247830Abstract: A method for supporting transport of data packets in a network, wherein the data packets are transmitted from a source node to a destination node by employing a tunnel from a first tunnel endpoint to a second tunnel endpoint, wherein a tunnel header is added to the data packets at the first tunnel endpoint, wherein the data packets are transmitted between the tunnel endpoints via a network domain that includes one or more intermediate nodes functioning as transport network, and wherein the intermediate nodes forward the data packets, is characterized in that the tunnel is provided in the form of a virtual tunnel by removing the tunnel header from the data packets where the data packets enter the network domain and adding back the tunnel header to the data packets where the data packets exit the network domain. A corresponding system for supporting transport of data packets is disclosed.Type: ApplicationFiled: November 8, 2012Publication date: September 4, 2014Inventors: Hans-Joerg Kolbe, Andreas Kunz, Thomas Dietz, Surendran Palanimuthu
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Patent number: 8660054Abstract: A method for supporting distribution of warning messages, is characterized in that an NGN (Next Generation Network) infrastructure is employed for distribution, wherein the infrastructure includes a plurality of network elements including endpoints, wherein a hierarchical architecture is defined for the network elements, wherein groups of network elements including endpoints with specific characteristics are defined, wherein each of the network elements provides its group membership information to at least one higher-tier network element, and wherein at least one group warning controller is provided that, upon receiving a request from a source node, generates a warning message for one or more target groups and forwards the warning message to lower-tier network elements of the respective target group or groups towards endpoints.Type: GrantFiled: June 30, 2010Date of Patent: February 25, 2014Assignee: NEC Europe Ltd.Inventors: Hans-Joerg Kolbe, Thomas Dietz, Marcus Brunner
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Publication number: 20140047018Abstract: For allowing a reliable and high performance of a network, a method for operating a network is described, wherein the network includes a server and at least one client for communication with the server, an application computation or operation will be performed by the server and the result of the application computation or operation will be displayed at the client. The method is characterized in that a network element will be provided for use by the client, wherein the network element performs at least one application computation or operation on behalf of the server. Further, a corresponding network for carrying out the above mentioned method is also disclosed.Type: ApplicationFiled: May 13, 2011Publication date: February 13, 2014Applicant: NEC Europe, LTDInventors: Mischa Schmidt, Martin Stiemerling, Thomas Dietz
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Publication number: 20140016476Abstract: A method for operating a flow-based switching system in a network, including at least one network node designed to transport incoming network packets, in particular a switch (20) or a router, wherein the incoming network packets are matched to flows according to predefined policies, wherein a dynamic flow table (40)—primary flow table (50)—containing information about the flows' properties is computed inside the network node or externally and stored in a memory of the network node, is characterized in that another dynamic flow table (40)—backup flow table (60)—is computed and maintained in parallel, wherein the backup flow table (60) is more coarse grained than the primary flow table (50), and wherein the network node switches between employing the primary flow table (50) or the backup flow table (60) depending on the status of predefined observables. Furthermore, a corresponding flow-based switching system is disclosed.Type: ApplicationFiled: March 24, 2011Publication date: January 16, 2014Applicant: NEC EUROPE LTD.Inventors: Thomas Dietz, Nico D'Heureuse, Hans-Joerg Kolbe
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Patent number: 8568558Abstract: The delignification and bleaching of chemical pulp by a bleaching stage, in which the chemical pulp is reacted first with chlorine dioxide and, after reaction of the chlorine dioxide, is further reacted without intermediate washing with hydrogen peroxide in the presence of a molybdate or tungstate, permits the production of chemical pulp having a whiteness of at least 89.5%, having improved stability to yellowing and reduced oxidative damage.Type: GrantFiled: January 16, 2011Date of Patent: October 29, 2013Assignee: Evonik Degussa GmbHInventor: Thomas Dietz
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Patent number: 8545673Abstract: Process for recovering molybdate or tungstate from an aqueous solution, in which molybdate or tungstate is bound to a water-insoluble, cationized inorganic carrier material from the aqueous solution at a pH in the range from 2 to 6, the laden carrier material is separated off and the bound molybdate or tungstate is liberated once again into aqueous solution at a pH in the range from 6 to 14. The process is suitable for recovering molybdate or tungstate in the delignification of pulp with hydrogen peroxide in the presence of molybdate or tungstate as catalyst. The recovered molybdate or tungstate can be recycled to the delignification.Type: GrantFiled: August 14, 2012Date of Patent: October 1, 2013Assignee: Evonik Degussa GmbHInventors: Thomas Dietz, Hans Ulrich Süss
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Patent number: 8401807Abstract: A method for energy consumption monitoring in an ICT environment, wherein the ICT environment (1) includes a multitude of energy consuming components (2, 3), at least partly the components (2, 3) being instrumented with elements for energy consumption monitoring and/or having assigned specific energy consumption models that derive one or more energy metrics for the respective component (2, 3) from the component's (2, 3) current performance metrics, is characterized in the steps of ascertaining changes of and/or related to the ICT environment (1) via an energy consumption monitoring controller (7), performing an assessment of available energy consumption monitoring techniques both instrumentation-based and model-based, based on the result of the assessment selecting one or more energy consumption monitoring techniques that best satisfy the change of the ICT environment (1) according to predefined policies. Furthermore, a corresponding monitoring system is described.Type: GrantFiled: April 17, 2009Date of Patent: March 19, 2013Assignee: NEC Europe Ltd.Inventors: Jurgen Quittek, Thomas Dietz, Dominique Dudkowski, Jochen Schramm
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Publication number: 20120305208Abstract: Process for recovering molybdate or tungstate from an aqueous solution, in which molybdate or tungstate is bound to a water-insoluble, cationized inorganic carrier material from the aqueous solution at a pH in the range from 2 to 6, the laden carrier material is separated off and the bound molybdate or tungstate is liberated once again into aqueous solution at a pH in the range from 6 to 14. The process is suitable for recovering molybdate or tungstate in the delignification of pulp with hydrogen peroxide in the presence of molybdate or tungstate as catalyst. The recovered molybdate or tungstate can be recycled to the delignification.Type: ApplicationFiled: August 14, 2012Publication date: December 6, 2012Applicant: Evonik Degussa GmbHInventors: Thomas Dietz, Hans Ulrich Süss
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Patent number: 8277765Abstract: Process for recovering molybdate or tungstate from an aqueous solution, in which molybdate or tungstate is bound to a water-insoluble, cationized inorganic carrier material from the aqueous solution at a pH in the range from 2 to 6, the laden carrier material is separated off and the bound molybdate or tungstate is liberated once again into aqueous solution at a pH in the range from 6 to 14. The process is suitable for recovering molybdate or tungstate in the delignification of pulp with hydrogen peroxide in the presence of molybdate or tungstate as catalyst. The recovered molybdate or tungstate can be recycled to the delignification.Type: GrantFiled: April 28, 2009Date of Patent: October 2, 2012Assignee: Evonik Degussa GmbHInventors: Thomas Dietz, Hans Ulrich Süss
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Publication number: 20120163380Abstract: A method for supporting distribution of warning messages, is characterized in that an NGN (Next Generation Network) infrastructure is employed for distribution, wherein the infrastructure includes a plurality of network elements including endpoints, wherein a hierarchical architecture is defined for the network elements, wherein groups of network elements including endpoints with specific characteristics are defined, wherein each of the network elements provides its group membership information to at least one higher-tier network element, and wherein at least one group warning controller is provided that, upon receiving a request from a source node, generates a warning message for one or more target groups and forwards the warning message to lower-tier network elements of the respective target group or groups towards endpoints.Type: ApplicationFiled: June 30, 2010Publication date: June 28, 2012Applicant: NEC EUROPE LTD.Inventors: Hans-Joerg Kolbe, Thomas Dietz, Marcus Brunner