Ring Or Loop Forms Backbone For Interconnecting Other Networks Patents (Class 370/404)
  • Patent number: 10420155
    Abstract: Systems and methods for setting up an access point in a Wi-Fi system, subsequent to booting up, determining whether the access point is a gateway node with a connection to a modem/router or a Wi-Fi node without a connection to the modem/router; connecting to a cloud configuration service when the access point is a gateway node for obtaining configuration parameters of the Wi-Fi system; and connecting to a predefined Service Set Identifier (SSID) when the access point is a Wi-Fi node for obtaining the configuration parameters from the gateway node.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: September 17, 2019
    Assignee: Plume Design, Inc.
    Inventors: Kaixiang Hu, Sameer Vaidya, Kiran Edara, Paul White, Aman Singla, Evan Jeng, Balaji Rengarajan
  • Patent number: 10200724
    Abstract: Described are techniques for selecting an audio device from a group of devices to function as a master device that receives data from a remote source and distributes the data to other devices within the group. Each device is used for this purpose at least once to determine at least one data throughput value attainable by the device. Based the data throughput values for the devices, signal strength data for the devices, and characteristics of the devices themselves, a master device and a length of time that the audio device is to be used as the master device is determined. Other lengths of time that other devices are to be used temporarily as master devices may also be determined. As additional data throughput values are determined from each instance that a device is used, the determined master device and the lengths of time that each device is used may change.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: February 5, 2019
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: Michael Alan Pogue, Kyle Gordon Haight, Amit Dubey
  • Patent number: 9990324
    Abstract: Embodiments of the present invention are directed to a configuration interface of a network ASIC. The configuration interface allows for two modes of traversal of nodes. The nodes form one or more chains. Each chain is in a ring or a list topology. A master receives external access transactions. Once received by the master, an external access transaction traverses the chains to reach a target node. A target node either is an access to a memory space or is a module. A chain can include at least one decoder. A decoder includes logic that determines which of its leaves to send an external access transaction to. In contrast, if a module is not the target node, then the module passes an external access transaction to the next node coupled thereto; otherwise, if the module is the target node, the transmission of the external access transaction stops at the module.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: June 5, 2018
    Assignee: Cavium Inc.
    Inventors: Guy Townsend Hutchison, Harish Krishnamoorthy, Gerald Schmidt, Vishal Anand
  • Patent number: 9979998
    Abstract: Described are techniques for synchronizing multiple devices within a group to enable performance of a synchronized action through the exchange of time data. A first device provides a timestamp or other time data to multiple other devices via a multicast transmission. Each of the other devices determines a time at which the timestamp was received and exchanges this data with one another. Based on the determined times, the other devices may be synchronized relative to a selected synchronization master device. One of the other devices may then determine a from the first device, and determine the time at which the timestamp from the first device was received, enabling the first device to be synchronized with the synchronization master device. Devices that are unable to receive multicast transmissions from the first device may exchange timestamps with the first device via an access point.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: May 22, 2018
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: Michael Alan Pogue, Kyle Gordon Haight
  • Patent number: 9967137
    Abstract: The present invention relates to a system and method for protecting a virtual circuit in a dynamic multi-domain environment, the system comprising: a request agent (RA) for transmitting, if a network service is requested from a user terminal, a network resource allocation request signal for providing the requested network service to a global network service agent (NSA); the global network service agent (NSA) for managing at least one or more provider NSAs existing in one composition domain and managing data plane status information of primary/backup virtual circuits of each domain on the basis of information received from the at least one or more provider NSAs; and the at least one or more provider NSAs for configuring, according to reception of the network resource allocation request signal, a network device and the primary and backup virtual circuits, monitoring whether a failure occurs in the configured virtual circuits and network device, and transmitting link/node failure/recovery information and protect
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: May 8, 2018
    Assignee: KOREA INSTITUTE OF SCIENCE & TECHNOLOGY INFORMATION
    Inventor: Huhnkuk Lim
  • Patent number: 9934520
    Abstract: A server provides data to software applications executing at mobile devices. Billing information for each wireless device is shared with a provider of a software application. The server formats usage information into a transaction record for the content provider. A customer of a network carrier is charged differently based upon a type of content accessed through the server.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: April 3, 2018
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Douglas R. O'Neil, Jose F. Rivera
  • Patent number: 9888302
    Abstract: The disclosure provides a method for bandwidth assignment of an Optical Burst Ring (OBRing), which includes that: a master node acquires current bandwidth resources, and excludes bandwidth resources occupied by over-the-master-node connections from the current bandwidth resources to obtain bandwidth resources to be assigned; and the master node assigns the bandwidth resources to be assigned to each node according to bandwidth requests of each node in the OBRing. The disclosure also provides a device for bandwidth assignment of an OBRing. According to embodiments of the disclosure, the bandwidth resources occupied by the over-the-master-node connections are excluded before bandwidth assignment is started, so that the problem of receiving conflict caused by an over-the-master-node service data connection is solved.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: February 6, 2018
    Assignee: XI'AN ZONGXING NEW SOFTWARE CO. LTD.
    Inventors: Xue Chen, Xintian Hu, Hongxiang Guo, Shaoliang Luo, Gaofeng An
  • Patent number: 9853761
    Abstract: This disclosure relates to wavelength division multiplexed (WDM) passive optical networks (PON), and the transmission of point-to-point and broadcast or multicast channels from an optical line transmitter (OLT) to an optical network unit (ONU).
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: December 26, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Fabio Cavaliere, Luca Giorgi
  • Patent number: 9712318
    Abstract: A method for synchronizing data transmitted between at least one transmit terminal (TE) and a receive terminal (TR) via a transmission channel (CD) with unmanaged latency, comprising the steps: (a) in said or in each transmit terminal, generating at least one synchronization signal (SSYNC) having a known temporal relationship with the time of transmission of at least one data packet (SEEG) to be synchronized; (b) transmitting said or each data packet to be synchronized on said transmission channel with unmanaged latency, and said or each synchronization signal on an auxiliary transmission channel (CS) with managed latency; (c) in said receive terminal, receiving said or each data packet to be synchronized and said or each synchronization signal; and (d) synchronizing said or each data packet received by said receive terminal by means of said synchronization signal. Data acquisition device for carrying out such a method.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: July 18, 2017
    Assignee: Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventors: Michael Foerster, Guillaume Charvet, Jean Porcherot
  • Patent number: 9706487
    Abstract: A wireless network device and an automatic configuration method are provided. When no second wireless network device providing a wireless local area network (WLAN) is found or when a service identifier of the second wireless network device lacks a preset prefix, a first wireless network device operates in an access point (AP) mode with service identifier comprising the preset prefix to receive a first setting signal carrying a terminal service identifier of a network terminal device, switches its operation mode from the AP mode to a client mode to edit its service identifier setting by the terminal service identifier, and connects to the network terminal device. When the service identifier of the second wireless network device comprises the preset prefix, the first wireless network device connects to the second wireless network device to link the network terminal device.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: July 11, 2017
    Assignee: VIVOTEK INC.
    Inventor: Chin-Wei Cho
  • Patent number: 9596191
    Abstract: A network relay system includes a plurality of communication devices. Each of the communication devices includes a data plane that transfers an input packet according to routing information, and a control plane having a processing unit that learns the routing information, and a control system repeater. The data planes of the respective communication devices can realize a non-blocking communication therebetween. Also, the control system repeater of an operational system receives the routing information from the processing unit, sets the routing information for the data plane of the subject communication device, and transmits the routing information to the control system repeater of the other communication device. The control system repeater of a standby system receives the routing information, and sets the routing information for the data plane of the subject communication device.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: March 14, 2017
    Assignee: Alaxala Networks Corporation
    Inventors: Takashi Nagumo, Masashi Uchiya, Teruo Kaganoi, Mitsuo Yamamoto, Nobuhito Matsuyama
  • Patent number: 9503276
    Abstract: A method of operating a communication system, comprising the steps of: receiving a first OSI layer two packet from a first network interface; determining transmission type of the first OSI layer two packet; determining whether to send a second OSI layer two packet according to the transmission type, origin and destination of the first OSI layer two packet; determining destination address and transmission type of the second OSI layer two packet when determined to send the second OSI layer two packet; and sending the second OSI layer two packet through a second network interface when determined to send the second OSI layer two packet; wherein when the first OSI layer two packet is encapsulated in at least one layer three packet, the second OSI layer two packet is not encapsulated in any OSI layer three packet; and wherein when the first OSI layer two packet is not encapsulated in any Open Systems Interconnection (OSI) layer three packet, the second OSI layer two packet is encapsulated in at least one OSI layer
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: November 22, 2016
    Assignee: PISMO LABS TECHNOLOGY LIMITED
    Inventors: Kam Chiu Ng, Yu Yeung, Ka Kei Liu
  • Patent number: 9398253
    Abstract: The disclosure relates to video telephony and, more particularly, to techniques for detecting a video pause in a video telephony application. In one example of the disclosure, a method for video telephony comprises detecting, at a receiving device, that video data packets associated with a video telephony call have stopped arriving from a sending device, and determining that the sending device has paused a video portion of the video telephony call based on information contained in video control packets.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: July 19, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Tien-Hsin Lee, Min Wang, Radhika Agrawal, Vikram Singh, Nathan Allan Rickey
  • Patent number: 9350626
    Abstract: The communication management apparatus includes a network-presence-check processing unit that performs network presence check processing for generating network presence information, a token-circulation-order determining unit that determines token circulation order using the network presence information, a setup processing unit that notifies each of communication nodes in the network of token circulation destination information, a token-frame processing unit that, after transmission of a data frame by a data-frame-communication processing unit, transmits, based on the token circulation order, a token frame including information concerning a transmission right acquiring apparatus that acquires a transmission right next and determines whether the transmission right acquiring apparatus of the transmission right acquiring apparatus information of the received token frame is the own apparatus, and the data-frame-communication processing unit that performs transmission and reception processing for a data frame for a
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: May 24, 2016
    Assignee: MITSUBISHI ELECTRIC CORP.
    Inventors: Masato Nakamura, Tatsumi Yabusaki, Tomitsugu Sugimoto
  • Patent number: 9313121
    Abstract: Embodiments of the disclosure are directed to implementing a router Media Access Control (MAC) Ethernet switch in a network. An embodiment receives, from a first Multiprotocol Label Switching (MPLS) router, at least one data packet with a router MAC address identifying a second MPLS router; automatically learns the router MAC address identifying the second MPLS router; accesses information to determine the Internet Protocol (IP) address of the second MPLS router based on the learned router MAC address; and transmits the at least one data packet to the second MPLS router.
    Type: Grant
    Filed: February 13, 2014
    Date of Patent: April 12, 2016
    Assignee: Ciena Corporation
    Inventors: Gerard Leo Swinkels, Nigel Lawrence Bragg
  • Patent number: 9300563
    Abstract: In one embodiment, a plurality of links between a network node and another network node are configured as a link bundle. The network node establishes one or more standby bidirectional forwarding detection (BFD) sessions. Each standby BFD session is associated with one or more links of the link bundle. The network node establishes an active BFD session. The active BFD session is associated with one or more links of the link bundle. In response to non-receipt of returned BFD messages for the active BFD session, one or more new active BFD sessions are selected from the one or more standby BFD sessions. In response to non-receipt of returned BFD messages for the one or more new active BFD sessions, it is determined that the link bundle has failed.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: March 29, 2016
    Assignee: Cisco Technology, Inc.
    Inventors: Reshad A. Rahman, David P. Toscano, Sylvain Masse, David D. Ward, Neil R. Ketley
  • Patent number: 9245427
    Abstract: A system and method for synchronizing a plurality of networked fire alarm panels is disclosed. A plurality of fire panels (i.e., nodes) are arranged on a peer-to-peer network, such as a token ring network. One node is designated as a SyncHost, and the remaining nodes are periodically reset to the clock time associated with the SyncHost to ensure all nodes remain substantially synchronized to a single time. As such, when an alarm condition is signaled, the visual notification devices (i.e., strobe lights) of all the fire panels (nodes) will flash at substantially the same time, in accordance with government guidelines. To accomplish the synchronization, the SyncHost sends periodic attendance polls around the network, noting the transit times of the polls. The individual nodes on the network also note times associated with the polls.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: January 26, 2016
    Assignee: TYCO FIRE & SECURITY GMBH
    Inventors: Jaime Yu, Michael W. Greene, Erick Drummond
  • Patent number: 9100210
    Abstract: Multiple gateway devices communicating between a device level ring (DLR) network and a spanning tree (ST) network may be provided a gateway protocol that cooperatively ensures that only a single gateway is active at a given time. This cooperation may be effected by the transmission of advertise messages by gateways, the advertise messages holding precedence values so that only a single gateway having a highest precedence value is active at a given time. Loss of the advertise messages may trigger a gateway held in a backup state to assume an active gateway role.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: August 4, 2015
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Sivaram Balasubramanian, Anatoly Moldovansky
  • Patent number: 9049097
    Abstract: The communication management apparatus includes a network-presence-check processing unit that performs network presence check processing for generating network presence information, a token-circulation-order determining unit that determines token circulation order using the network presence information, a setup processing unit that notifies each of communication nodes in the network of token circulation destination information, a token-frame processing unit that, after transmission of a data frame by a data-frame-communication processing unit, transmits, based on the token circulation order, a token frame including information concerning a transmission right acquiring apparatus that acquires a transmission right next and determines whether the transmission right acquiring apparatus of the transmission right acquiring apparatus information of the received token frame is the own apparatus, and the data-frame-communication processing unit that performs transmission and reception processing for a data frame for a
    Type: Grant
    Filed: December 25, 2008
    Date of Patent: June 2, 2015
    Assignee: MITSUBISHI ELECTRIC CORP.
    Inventors: Masato Nakamura, Tatsumi Yabusaki, Tomitsugu Sugimoto
  • Patent number: 9002955
    Abstract: A computing network, including: a plurality of peer computing devices including code, which when executed by a peer computing device causes the executing peer computing device to cooperate with at least one other of the peer computing devices; at least one server including code, which when executed by the at least one server locates at least one of the peer computing devices; and at least one mediator including code, which when executed by the at least on mediator collects charging information from at least some of the peer computing devices; wherein, the peer computing devices, at least one sever and at least one mediator are communicatively coupled via an at least carrier-grade telecommunications network being suitable for enhancing cooperation among the cooperating ones of the peer computing devices relative to best-efforts communications among the cooperating ones of the peer computing devices.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: April 7, 2015
    Assignees: ZTE Corporation, ZTE USA Inc.
    Inventors: Larry Shaoyan Ma, Weiyong Zhu, Li Mo
  • Patent number: 8989220
    Abstract: In one embodiment, a system includes a station circuit. The station circuit includes a data layer and a transport layer. The station circuit is capable of a source mode and a destination mode. The data layer of the station circuit in source mode disassembles a source packet into one or more source parcels and sends the one or more source parcels to the transport layer. The station circuit in destination mode receives the one or more destination parcels over a ring at its transport layer, reassembles the one or more destination parcels into a destination packet, and delivers the destination packet from the transport layer to the data layer. The transport layer of the station circuit in source mode transmits the one or more source parcels over the ring. The transport layer of the station circuit in destination mode receives the one or more destination parcels over the ring.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: March 24, 2015
    Assignee: Cavium, Inc.
    Inventors: Paul G. Scrobohaci, Ahmed Shahid, Bryan W. Chin, Leo Chen
  • Patent number: 8983292
    Abstract: A packet switch 40 comprises wavelength tunable optical transmitters 12, an optical switch fabric 42, optical detectors 30 and a controller 32. The transmitters 12 are arranged to receive at least one electrical signal packet to be switched and convert it into a corresponding optical signal packet at an input wavelength. The optical switch fabric 42 comprises an ingress stage 44 comprising wavelength selective routers 46 and an egress stage 50 comprising wavelength selective routers 54 and tunable wavelength converters 26 arranged to receive an optical signal at the input wavelength and to output an optical signal at an output wavelength. The controller 32 is arranged to set the input wavelength of a transmitter 12 and the output wavelength of a wavelength converter to configure a path across the switch fabric 42 connecting the transmitter 12 to a detector 30. A communications network router 90 comprises an input module 92, a packet switch 40, an output module 96 and a scheduler 94.
    Type: Grant
    Filed: January 18, 2010
    Date of Patent: March 17, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Francesco Testa, Antonio D'Errico
  • Patent number: 8971325
    Abstract: Exemplary embodiments of a system and method enable application of policy using Layer 2 fields for a data frame, simplified data structures, or both. In accordance with one aspect of the present invention, a policy may be based upon a destination address (DA), a source address (SA), or a virtual local area network identification (VID) associated with a data frame.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: March 3, 2015
    Assignee: Marvell International Ltd.
    Inventor: Donald Pannell
  • Patent number: 8918845
    Abstract: A method and arrangement in a media server (300a) in a first local network (300), of providing remote access to media content stored in a second local network (302). The media server sends a subscription request (3:2) to a presence server (304) for information on media content in the second local network, substantially based on the existing presence service framework. In response thereto, a presence service notification is received (3:3) from the presence server with information referring to remote media content in the second local network that has been published at the presence server. The media server then retrieves (3:4) a content list with available remote media content according to the received presence service notification, and presents (3:5) information from said content list on what media content is available in the second local network, to a device (300c) in the first local network.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: December 23, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Jimmy Holmgren, Bo Kvarnstrom, Johan Lundgren
  • Patent number: 8902934
    Abstract: A method and an arrangement synchronizes data streams in networks, via a corresponding computer program and corresponding computer-readable storage medium which can be used, in particular, for synchronizing different audio playback devices (audio adapters) within a home network. Said home network can be a conventional computer network comprising both wireline and wireless components. According, in order to synchronize the data output in networks in which at least one data stream is transmitted by a network unit to at least two output units of the network, where said stream is outputted, first common time information is made available to at least the output units and the output of the data in the data stream is synchronized at least in terms of the phase and/or frequency on the basis of the first common time information.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: December 2, 2014
    Assignee: Raumfeld GmbH
    Inventor: Michael Hirsch
  • Patent number: 8902911
    Abstract: A system and method for interconnecting Ethernet and fiber channel is provided. The system includes a port containing an optical receiver, a port control module, a route determination module, and a connectivity module. The port control module is operably connected to the port and may perform 8B/10B encoding and decoding. The route determination module selects a route between the port control module and the Ethernet link. The connectivity module is operably connected to the port control module and to the route determination module. The connectivity apparatus may switch frames between the port control module and the Ethernet link under control of the route determination module in order to transfer Fiber Channel frames to the Ethernet link.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: December 2, 2014
    Assignee: Emulex Corporation
    Inventor: Stuart B. Berman
  • Patent number: 8891538
    Abstract: In one embodiment, a router maintains a communication session between a local terminal unit and a remote terminal unit, the local terminal unit interconnected to the router over a local serial data link, and the remote terminal unit interconnected to the router over an Internet Protocol (IP) session via a remote router and a corresponding remote serial data link. The router may then monitor a state of the local serial data link, and communicates this state with the remote router over the IP session, as well as a remote state of the remote serial data link. The router may then correspondingly control the state of the local serial data link to match the remote state of the remote serial data link.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: November 18, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Ravikumar S. Chandrasekaran, Jean-Philippe Vasseur, Shmuel Shaffer
  • Patent number: 8885656
    Abstract: Disclosed in the present invention is a method for updating blocked port information. The method includes: when a node to which a ring protection link belongs in an Ethernet ring network is in a pending state and after a wait to restore timer expires, updating by the node to which the ring protection link belongs in the Ethernet ring network refreshing record information of an adjacent port of the ring protection link as: information identifying a blocked port of the node to which the ring protection link belongs in the Ethernet ring network. Also disclosed in the present invention is a system for updating blocked port information.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: November 11, 2014
    Assignee: ZTE Corporation
    Inventor: Shaoyong Wu
  • Patent number: 8855124
    Abstract: Systems, mechanisms, apparatuses, and methods are disclosed for forwarding Inter-Switch Connection (ISC) frames in a Network-to-Network Interconnect (NNI) topology, for example, via a network switch which includes a first physical switch port to receive a physical switch link from a second network switch; logic to implement a first logical ISC and a second logical ISC? connection to the second network switch via the physical switch link; a second physical switch port to receive an interface connection from a third network switch; and switch forwarding logic to forward frames received at the first network switch to the second network switch via the logical ISC or logical ISC? based on whether or not the physical switch link is part of an active topology upon which the network switch operates or is not part of the active topology upon which the network switch operates. Other embodiments are disclosed.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: October 7, 2014
    Assignee: Extreme Networks, Inc.
    Inventor: Stephen R Haddock
  • Patent number: 8831022
    Abstract: A system and method for interconnecting multiple communication interfaces is provided. The system includes a port, a transmission layer module and a signaling layer module. The port communicates data over a first interface. The port is one of a plurality of ports operable to communicate data over the first interface. Each port in the plurality of ports is addressed by one a plurality of physical addresses. One or more of the plurality of ports may simultaneously communicate with a control port over the first interface. The transmission layer module is connected to the port and is operable to enable the port to communicate data with the control port. The signaling layer module is connected to the transmission layer module and is operable to enable data communication with a second interface. The second interface may be an Ethernet port. The first interface and the second interface may operate at different speeds.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: September 9, 2014
    Assignee: Emulex Corporation
    Inventor: Stuart B. Berman
  • Patent number: 8798074
    Abstract: In general, techniques are described for packet queuing within ring networks. In accordance with the techniques, a network device of a ring network comprises a memory having a different queue for each order-dependent pair of the network devices. Each pair represents a different order-dependent combination of the network devices that includes an ingress network device that provides an ingress to the ring network and an egress network device that provides an egress from the ring network. The network device further comprises an interface for receiving a packet from a neighboring one of the plurality of network devices and a control unit that, in response to receiving the packet, stores the packet to one of the queues based on which network devices is the ingress and which network device is the egress for the packet. The control unit forwards the stored packet via the ring network according to a scheduling algorithm.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: August 5, 2014
    Assignee: Juniper Networks, Inc.
    Inventors: Kireeti Kompella, Pradeep Sindhu, Jean-Marc Frailong, David J. Ofelt
  • Patent number: 8761165
    Abstract: A connecting node in a first sub-network system reserves a transmission channel in a connecting network, reads waveform data having a designated signal name from a TL frame in the first sub-network system, and writes the read waveform data into the reserved transmission channel in a TL frame in the connecting network, and a connecting node in a second sub-network system reserves a transmission channel in the second sub-network system, reads the waveform data having the designated signal name from the TL frame in the connecting network, and writes the read waveform data into the reserved transmission channel in a TL frame in the second sub-network system.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: June 24, 2014
    Assignee: Yamaha Corporation
    Inventors: Kei Nakayama, Ayumi Fukata
  • Patent number: 8761602
    Abstract: Methods and apparatuses for controlling the flow of video over Ethernet (VoE) traffic in a network are disclosed. The method can include originating the VoE traffic from an add node in the network. A first control signal can be received from a first drop node in the network containing a drop port configured to receive the VoE traffic. The add node can determined if the first drop node contains the drop port based on the first control signal.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: June 24, 2014
    Assignee: Ciena Corporation
    Inventors: Ross Caird, Michael Watford, David Diep
  • Patent number: 8750183
    Abstract: A mobile device-to-HTTP protocol gateway (MHG) which translates between Wireless Mobile Originated commands from an SMSC, and an application server on the Internet. A wireless Internet gateway establishes communications with one or more relevant SMSCs using standard format SMPP commands, and the MHG utilizes HTTP protocol POST messages to post short messages originated at the mobile device to a particular URL. Return results are received by the MHG via HTTP protocol messages, translated to SMPP messages, and forwarded back to the SMSC for delivery to the mobile device. The wireless Internet Gateway communicates with the MHG using RMI protocol commands. An MHG in the present invention enables a developer to create mobile applications using standard web development tools. The MHG allows standard format command messages to be used throughout the pathway between a mobile device and an application program on a web IP server at a particular URL.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: June 10, 2014
    Assignee: Patent Monetization Associates, L.P.
    Inventors: Richard A. Smith, Johanna Wilson
  • Patent number: 8724519
    Abstract: A dual homing technique for ensuring loop free transmission of traffic between telecommunication networks such as VPLS by utilizing a loop protocol in the dual homed connection. The technique also provides selective handling of VPLS data streams protected and non-protected by the dual homing loop protocol.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: May 13, 2014
    Assignee: ECI Telecom Ltd.
    Inventors: Andrew Sergeev, Alexander Kugel, Gideon Agmon, Rotem Cohen
  • Publication number: 20140126578
    Abstract: The present invention connects a ring topology Ethernet network to other networks of various shapes. To that end, a first ring topology network configured in a ring shape has three or more expandable nodes (each have three or more Ethernet ports), and is connected to other networks through Ethernet ports that are not used for the formation of the first ring topology network among Ethernet ports of the expandable node. Thus, it is possible to add equipment without changing a ring topology network previously built and it is possible to integrate and manage networks of various shapes into a single network.
    Type: Application
    Filed: August 28, 2013
    Publication date: May 8, 2014
    Applicant: LSIS CO., LTD.
    Inventors: Geon YOON, Joon Seok OH
  • Patent number: 8717879
    Abstract: A method and a device are provided to be run in a network (or in particular on a network component of such network). The network has several network elements that are connected via a ring. One network element is a ring master with a primary port and a secondary port. The novel process includes the steps of (i) a failure along one direction of the ring is detected by the ring master; and (ii) the ring master sends a first message via its port that indicates the direction of the failure.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: May 6, 2014
    Assignee: Nokia Siemens Networks Oy
    Inventor: Jose Santos
  • Patent number: 8670451
    Abstract: A virtual interface having a global address of a physical interface on an Internet side of a gateway is provided in a terminal. An application unit of the terminal transmits a packet to the Internet using the virtual interface. The packet is transferred to the gateway through a downlink transfer path. The gateway transmits the packet from the physical interface on the Internet side to the Internet.
    Type: Grant
    Filed: June 12, 2006
    Date of Patent: March 11, 2014
    Assignee: Fujitsu Limited
    Inventors: Takeshi Kodama, Tetsumei Tsuruoka, Naoki Oguchi
  • Patent number: 8649261
    Abstract: The present invention provides a method for blocking a protocol message at a Sub-ring control channel without a virtual channel, for avoiding the problem that the Sub-ring is in a continuous refresh state all the time caused by the existing solution of the Sub-ring control channel without the virtual channel, and the method includes: blocking forwarding of relevant messages when a forced switch is initiated or a failure is detected.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: February 11, 2014
    Assignee: ZTE Corporation
    Inventors: Bin Wang, Shaoyong Wu
  • Patent number: 8644134
    Abstract: Techniques are described which provide mechanisms for dual-homing an access ring for virtual private wire service (VPWS) Ethernet line (E-Line) services. The mechanism may provide resiliency against access ring failures and offer a restoration time of 50 msec upon failure. A method to provide such resiliency may generally include determining, at a first ring port of an access node, a ring failure in an Ethernet ring. Upon determining the first ring port of the access node is not situated on a same side of the Ethernet ring as a node designated as a ring protection link (RPL) owner, a message is transmitted on a second ring port of the access node towards a provider edge (PE) node. The message is used to activate pseudowires (PWs) at the PE node for virtual local area networks (VLANs) of the access node.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: February 4, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Ali Sajassi, Samer M. Salam
  • Patent number: 8588236
    Abstract: A virtual network management server includes ring node information that manages configuration nodes for each of the rings, and ring connection I/F for each of the ring configuration nodes, generates the VLAN configuration information so as to transfer a frame that is transmitted or received by a designated gateway connection port and a designated base station connection port by the designated VLAN, and also so as to transmit or receive a tagged frame of the designated VLAN by the ring connection I/F of all of the ring to which the gateway connection switch belongs and the ring to which the base station connection switch belongs, and updates the VLAN configuration of the switch.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: November 19, 2013
    Inventors: Hideki Okita, Masahiro Yoshizawa, Tsuyoshi Tanaka, Toshiaki Tarui
  • Patent number: 8539320
    Abstract: The Invention pertains to the field of broadcasting digital services to terminals for transmitting said services, and concerns the problem of the smooth transfer between two versions of a same stream upstream from a transmitter within transmission networks on a single modulation frequency. The invention relates to a device for the fine synchronization of different versions of a data stream received with a certain offset or various jitters. In order to do so, the device includes different paths for detecting errors (ETR) and synchronizing the stream (SNF).
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: September 17, 2013
    Assignee: Enensys Technologies
    Inventor: Ludovic Poulain
  • Patent number: 8532119
    Abstract: A Fiber Channel router used to join fabrics. EX_ports are used to connect to the fabrics. The EX_port joins the fabric but the router will not merge into the fabric. Ports in the Fiber Channel router can be in a fabric, but other ports can be connected to other fabrics. Fiber Channel routers can be interconnected using a backbone fabric. Global, interfabric and encapsulation headers are developed to allow routing by conventional Fiber Channel switch devices in the backbone fabric and simplify Fiber Channel router routing. Phantom domains and devices must be developed for each of the fabrics being interconnected. Front phantom domains are present at each port directly connected to a fabric. Each of these is then connected to at least one translate phantom domain. Zoning is accomplished by use of a special LSAN zoning naming convention. This allows each administrator to independently define devices are accessible.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: September 10, 2013
    Assignee: Brocade Communications Systems, Inc.
    Inventors: Robert Norman Snively, Steven L. Wilson, Edward D. McClanahan, Dennis Hideo Makishima, Daniel Ji Yong Park Chung
  • Patent number: 8509225
    Abstract: Providing enhanced emergency services (E-911) to an IP Telephony-based PBX or similar system, by utilizing aspects of the intelligence of end-user SIP client devices to address challenges and difficulties associated with E-911-like services in LAN-based telephony environments.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: August 13, 2013
    Assignee: Hewlett-Packard Development Company, LP
    Inventors: David Grabelsky, Michael Homeier, Anoop Tripathi, Boby Joseph
  • Patent number: 8509061
    Abstract: The present disclosure provides systems and methods for scaling performance of Ethernet Ring Protection Protocol. Specifically, the systems and methods may apply to G.8032 and may provide protection switching control plane performance scaling benefits. In an exemplary embodiment, the present invention summarizes the per “virtual” ring control plane protocol into a single logical ring control plane protocol. Advantageously, the present invention transforms the G.8032 protocol from a per-virtual ring protocol to a per-logical ring control protocol. The mechanism/methodology that is used is to include minimal per-virtual ring instance information in to the Ring Automated Protection Switching (R-APS) (control) frames. Additionally, the present invention cleanly decouples the placement of the R-APS (control) channel block location on the ring from that of the virtual channel data blocks. Current G.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: August 13, 2013
    Assignee: Ciena Corporation
    Inventors: Marc Holness, Jie Hu
  • Patent number: 8493989
    Abstract: A network device is connected to another network device over a network and performs multicast transmission and reception over the network. The network device stores in a storage unit in a corresponding manner a drop address that uniquely identifies data to be dropped from the network and control data that indicates whether dropped data is to be forwarded or deleted. The network device drops the data based on the drop address, and then either forwards or deletes the dropped data based on the control data.
    Type: Grant
    Filed: August 2, 2007
    Date of Patent: July 23, 2013
    Assignee: Fujitsu Limited
    Inventors: Tetsuya Tahara, Kazuyuki Inomoto
  • Patent number: 8451745
    Abstract: In one embodiment, a method for automatically probing endpoint in a network for performance and fault management is provided. The method may comprise receiving instructions to auto probe endpoints, the instructions comprising probe characteristics and endpoint indicators. The method may further comprise querying an information base to identify endpoints and to obtain information on the identified endpoints that conform to the endpoint indicators. Based on the instructions and the information obtained for the identified endpoints, one or more probe packets may be generating to be transmitted to the identified endpoints. The generated probe packets may further be scheduled for transmission to the identified endpoints. New endpoints may continue to get discovered based on a notification mechanism which exists. Likewise, endpoints leaving the discovery domain may be identified.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: May 28, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Wenwei Weng, Minghui Zhu, Vishnu Kant Varma
  • Patent number: 8437273
    Abstract: According to one embodiment, allocating demand includes receiving a demand graph that describes demands of a network. One or more weights are calculated for each demand. The demands are allocated according to the weights of the demands to optimize optical line card sharing.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: May 7, 2013
    Assignee: Fujitsu Limited
    Inventors: Xi Wang, Paparao Palacharla, Takao Naito
  • Patent number: 8401684
    Abstract: In the case where an audio network system that performs transport of audio signals between a plurality of processors is constructed such that the plurality of processors each including two sets of transmission I/Fs and reception I/Fs are connected in series, and a TL frame generated by a master node is circulated along a ring transmission route formed among the processors in each fixed period, the TL frame including a plurality of storage regions for audio signals, when one of the processors is required to be the master node, the one processor resets in sequence processors which are connected on both sides thereof and processors behind the processors connected on both sides to once remove each of those processors from a ring transmission route if it belong to any ring transmission route, then incorporates the processors into a ring transmission route in which the one processor belongs to.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: March 19, 2013
    Assignee: Yamaha Corporation
    Inventor: Kei Nakayama
  • Patent number: 8390429
    Abstract: A mobile RFID (Radio Frequency Identification) system and method are provided to monitor multiple control zones of the system simultaneously through a mobile outpost monitor. The control zones included in the system are connected with each other through a data exchange interface. Each of the control zones includes a link interface connecting with a gateway of at least one RFID tracking module. The gateway connects with at least one RFID reader and a signal transmitter to receive tag information of RFID tags within the control zone, and transmits the tag information through the signal transmitter. When the mobile outpost monitor moves from one control zone to another, the mobile outpost monitor may switch to link with the signal transmitter of the gateway in the current control zone. Through the data exchange interface, the mobile outpost monitor is able to obtain the monitoring information of another control zones.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: March 5, 2013
    Assignee: Getac Technology Corporation
    Inventors: Jun-Ting Shiau, Ta-Yung Lee, Jen-Hao Hsu, Chia-Chin Yu