Abstract: A communication apparatus connected to an adjacent communication apparatus through a first path and a second path to receive a frame with a path identifier through the first path or the second path, the apparatus including: a first network interface configured for communicating via the first path; a second network interface configured for communicating via the second path; and a processor configured for extracting a first monitoring frame and a second monitoring frame, which are failure monitoring frames, from frames received on the first network interface and the second network interface; detecting a failure, based on input monitoring frames; and converting the path identifier of the first monitoring frame or the path identifier of the second monitoring frame, which are extracted, to make the path identifiers equal to each other.

Abstract: A signaling apparatus is applied to a node constituting a network including internal network to network interface (INNI) domains having INNI interfaces between a plurality of networks in an area and external network to network interface (ENNI) domains having ENNI interfaces that connect the INNI domains. The apparatus includes a processing unit that processes a signaling message for setting a path when an end-to-end path that passes through the INNI domains and the ENNI domains that connect the INNI domains is set in response to the signaling message, a storing unit that holds information on types of links between an own node and adjacent nodes, and a judging unit that judges whether the own node is a connection end point of the INNI domains or the ENNI domains with reference to route information in the message and the information on the types of the links held in the storing unit.

Abstract: A relay node comprising a reception station for receiving a route trace control message including routing information on a path used for data transfer from a starting node to a terminal node from the preceding node on the path, an editing section for, if the home node is boundary node located at the boundary of a routing information shielding section on the path, editing so that a portion on the routing information shielding section of the routing information included in the route trace control message received by the reception section cannot be identified, and a transmission section for sending out a route trace control message after the edition to the node of the subsequent stage, which is located on the path.

Abstract: The communication device includes a transmission node connected to a transmission network, and a control node connected to a control network for controlling the transmission on the transmission network and setting the transmission of the transmission node, and the control node has a control link collecting unit collecting link information on the control network, a transmission link collecting unit collecting link information on the transmission network, a selection unit selecting, when determining a route from the transmission node to another transmission node as a terminating node outside the area, any one of the boundary control nodes as an egress node becoming an egress in a direction of the area, to which the terminating node belongs, based on the link information on the control network, and a determination unit determining a route to the egress node based on the link information on the transmission network.

Abstract: An information processing apparatus includes a depth-information detecting section, a comparison/detection section, and a control unit. The depth-information detecting section is provided for detecting a peak position of an object in a depth direction, at which the object is displayed at the front in an additional information display area. The comparison/detection section is provided for making a comparison between depth information of the additional information and the peak value of the stereoscopic video data to detect a positional relationship between the stereoscopic data and the display position of the additional information in the depth direction. The control unit is provided for controlling the stereoscopic video data and the display position of the additional information in response to the positional relationship between the stereoscopic video data and the display position of the additional information.

Abstract: A communication node selecting unit selects a communication node where a time for transferring a failure notification message from a plurality of failure detected communication nodes which detect a plurality of failures on an active communication path to be protected is within a predetermined time, and a backup communication path designing unit searches, based on the selected communication nodes, for a common backup communication path which bypasses the failures.

Abstract: A method for processing a control frame for controlling path protection switching between redundant paths including a working path and a protection path, which is executed at one of two node apparatuses coupled mutually via the redundant paths, the method comprising: at the time of switching of the redundant paths, stopping monitoring whether the control frame has been received via a previous working path which is the path used as the working path until the switching is completed; determining whether the other of the two node apparatuses has stopped transmitting the control frame via a new working path which is the path used as the working path after the switching is completed; and starting monitoring whether the control frame has been received via the new working path, when it is determined that the second apparatus has stopped transmitting the control frame via the new working path.

Abstract: A node for configuring a ring type network system in such a mode that a plurality of physical links belonging to difference rings exists between nodes opposite to each other, has a storage unit stored with link associated information representing an associated relationship between ports of physical links and a port of a virtual link virtually set up to at least one physical link, ring configuration information representing a paired relationship of the ports of the physical links configuring the different ring, port numbers of both ends of the physical link and port numbers of both ends of the virtual link, and a processing unit executing a process of transmitting, to other nodes, such information that one virtual link is associated with the plurality of physical links belonging to the different ring, and setting up, when receiving a signaling message for setting up a path, the path passing through the same ring on the basis of pass route information in the message and the storage information stored in the sto

Abstract: A control message having stored therein a link identifier for identifying a link such as a fiber or cable and a ring identifier for identifying a ring (or a control message having stored therein a ring identifier) is transmitted to a neighbor node. A ring identifier preliminarily assigned to a link identified by the link identifier received from the neighbor node (or a ring identifier preliminarily assigned to a link having received the control message) is compared with a ring identifier received from the neighbor node to select either one of the ring identifiers according to specified selection criteria. The ring identifier selected is assigned to the link identified.

Abstract: A node apparatus in a ring network in which a protection path is provided that cycles around the ring network and transports a signal in a direction opposite to a signal transporting direction of the working path and in the event of a failure of the working path, a node apparatus adjacent to the failure loops back the signal flowing on the working path onto the protection path, the node apparatus comprising: allowable bandwidth storing unit which stores a maximum total bandwidth value, which represents the largest value among per-link total values of bandwidths that a plurality of working paths use on respective links connecting between the node apparatuses, as an allowable bandwidth for a shared path; and bandwidth control unit which controls the bandwidth of traffic flowing on the protection path, in accordance with the allowable bandwidth.

Abstract: A communication apparatus stores therein link information indicating a network connection status of an entire hierarchical network, collects link information indicating a network connection status in its own area in predetermined cycles, and transmits the collected link information to another area assigned a level different from a level assigned to its own area. When receiving link information from another area assigned a different level, the communication apparatus determines whether the received link information is new link information newer than link information stored in a predetermined storage unit; when it is determined that the received link information is new link-information, the communication apparatus stores the new link information into the predetermined storage unit and advertises it in its own area; by contrast, when it is determined that the received link information is not new link-information, the communication apparatus discards the received link information without storing and advertising.

Abstract: A file splitting apparatus for splitting a data file recorded over a plurality of recording management regions arranged in the recording region of a recording medium, the apparatus including a management region detecting section for detecting a management region including a file splitting position, a management region recording part copying section for copying the management region recording part including the file splitting position; and a management information altering section for altering the management information of the data file to first management information for managing one of the split data files obtained by splitting the data file at the file splitting position and second management information for managing the other split data file.

Abstract: To provide a device and a method enabling a user to judge which route a path used at the present traces without being aware of whether the now-in-use path is a working path or a recovery path. A relay device positioned at a diverging node between the working path and the recovery path, when forwarding a message (e.g., a Path message and a Resv message each containing RRO) used for route trace, judges which type of path the path employed for forwarding the data at the present is coincident with and forwards the data to the relay device disposed on the in-use path, thereby actualizing the trace of the route used for forwarding the data at the present.

Abstract: A failure-recovery-information storing unit stores failure-recovery information in which a working path is associated with a backup path. A failure-occurrence-notification receiving unit receives a failure-occurrence notification indicating that a failure has occurred in the working path. A backup-path searching unit searches for a backup path corresponding to the working path on which the failure has occurred, based on the failure-recovery information. A path-switch processing unit carries out a path-switch process, in such a manner that the data to be transferred using the working path in which the failure has occurred is transferred using the backup path.

Abstract: A transmission device includes an ingress edge device that receives a frame, an egress edge device having a plurality of destination addresses, and a rewrite unit that rewrites a destination MAC address of the frame to another destination MAC address of the egress edge device when detecting a failure on a working path between the ingress edge device and the egress edge device.

Abstract: A recovery-path request message control block generates, sends, and receives a recovery-path request message containing failure location information and recovery-path setup information. A label assignment message control block generates, sends, and receives a label assignment message. A setup label information generation block generates setup label information. A recovery-path label table management block constructs and manages a recovery-path label table. A failure detection block detects the location of a failure. A failure notification message transfer block transfers a failure notification message containing failure location information. A recovery-path establishment block establishes a recovery-path by comparing failure location information contained in a failure notification message and failure location information contained in a recovery-path label table and by selecting setup label information corresponding to matching failure location information.

Abstract: A transmission device, which carries out a route control of a frame based on a label included in the frame in a ring network, includes: a generating unit that generates a message for collecting information on first/second labels allocatable to working/standby routes; a transmitting unit that transmits the message in the ring network; a receiving unit that receives the message after being circulated in the ring network; and a selecting unit that selects one of the first/second labels for the working/standby route based on the information included in the message.

Abstract: A video recording apparatus optimally records partial images made up of a partial area from an original image and containing a feature point such as person's face. An imaging unit acquires the original image by imaging at a resolution higher than the pixel count used for video recording. A feature point detector detects one or more feature points from the original image. A partial image clipper clips, from the original image, a partial image containing a feature point selected by the user. An encoder encodes the clipped partial image. A recording unit then records the encoded partial image to a recording medium. In so doing, the user is able to select a recording subject from a summary of detected feature points before or during video recording, and thus record a desired face.

Abstract: A signaling apparatus is applied to a node constituting a network including internal network to network interface (INNI) domains having INNI interfaces between a plurality of networks in an area and external network to network interface (ENNI) domains having ENNI interfaces that connect the INNI domains. The apparatus includes a processing unit that processes a signaling message for setting a path when an end-to-end path that passes through the INNI domains and the ENNI domains that connect the INNI domains is set in response to the signaling message, a storing unit that holds information on types of links between an own node and adjacent nodes, and a judging unit that judges whether the own node is a connection end point of the INNI domains or the ENNI domains with reference to route information in the message and the information on the types of the links held in the storing unit.

Abstract: A relay node comprising a reception station for receiving a route trace control message including routing information on a path used for data transfer from a starting node to a terminal node from the preceding node on the path, an editing section for, if the home node is boundary node located at the boundary of a routing information shielding section on the path, editing so that a portion on the routing information shielding section of the routing information included in the route trace control message received by the reception section cannot be identified, and a transmission section for sending out a route trace control message after the edition to the node of the subsequent stage, which is located on the path.