Abstract: A mobile communication terminal apparatus including: a mobile communication terminal main body; and an extension unit detachable from the mobile communication terminal main body and capable of performing short-range wireless communication with the mobile communication terminal main body when being detached in a separated state from the mobile communication terminal main body.

Abstract: A mobile communication terminal apparatus including: a mobile communication terminal main body; and an extension unit detachable from the mobile communication terminal main body and capable of performing short-range wireless communication with the mobile communication terminal main body when being detached in a separated state from the mobile communication terminal main body.

Abstract: A transmission system, having a plurality of delivery server side routers which communicate with a plurality of delivery servers for delivering a content; and a client side router which communicates with a client device for receiving the content, is configured to include: a database for storing server load states of the plurality of delivery servers, and respective individual link load states for a plurality of delivery paths between the plurality of delivery server side routers and the client side router; and a path control unit for determining a minimum load state delivery path having a minimum load state among the plurality of delivery paths, based on sums of the server load states and the respective individual link load states stored in the database.

Abstract: Included are a network information database for storing the statistical information collected from a router, a user request processing unit for accepting and processing a flow forwarding request from a user terminal connected to the network, a route control unit for searching for a route corresponding to the request from the user terminal by referring to the network information database, a load sharing control unit for executing such a load sharing process as to generate router setting information for sharing a transmission load of the network by referring to the network information database, and a router control unit for setting a router based on the route information determined by the route control unit and on the router setting information generated by the load sharing control unit.

Abstract: A policy control device for reflecting a policy rule defined by a condition and an action corresponding to the condition for operation setting of respective network devices present in a network to be managed, according to a transition of operation states of the network, including a storage unit for storing a plurality of multi-policy rules generated in units of combination of at least two single policy rules having different actions on the same condition, together with particular information of a network device to be applied, in such a manner that the plurality of multi-policy rules and the particular information can be updated; and a control unit for applying one of the plurality of multi-policy rules stored in the storage unit for the operation setting of the network device identified, based on the particular information.

Abstract: A peer node according to the present invention relates to a peer node for constructing a peer-to-peer (P2P) network allowing P2P type communication. The peer node includes a unit dividing a share target file for information sharing through the P2P network into a plurality of divided files in a form where contents of each divided file makes no sense by itself; a unit distributing and arranging the plurality of divided files to and in a plurality of peer nodes including the own peer node and at least one other peer node constituting the P2P network; and a unit moving each of the divided files of distribution and arrangement between the plurality of peer nodes at a certain period of time.

Abstract: A transmission system, having a plurality of delivery server side routers which communicate with a plurality of delivery servers for delivering a content; and a client side router which communicates with a client device for receiving the content, is configured to include: a database for storing server load states of the plurality of delivery servers, and respective individual link load states for a plurality of delivery paths between the plurality of delivery server side routers and the client side router; and a path control unit for determining a minimum load state delivery path having a minimum load state among the plurality of delivery paths, based on sums of the server load states and the respective individual link load states stored in the database.

Abstract: A policy rule scenario control apparatus comprises a scenario data storing unit storing one or more scenario data produced by combinations of a plurality of types of policy rules and applying conditions of these policy rules, a monitoring unit monitoring an operating state of a network device, a scenario selecting unit selecting the scenario data having the applying condition suitable to the monitor result, and a scenario implementing unit implementing policy control on the network device on the basis of, in the selected scenario data, the policy rule having the applying condition suitable to the monitor result, and implementing the policy control on the network device on the basis of a result of the implementation and another policy rule having the applying condition suitable to a subsequent monitor result. This enables automatically applying the policy rule validly according to the network state varying at all times.

Abstract: Included are a network information database for storing the statistical information collected from a router, a user request processing unit for accepting and processing a flow forwarding request from a user terminal connected to the network, a route control unit for searching for a route corresponding to the request from the user terminal by referring to the network information database, a load sharing control unit for executing such a load sharing process as to generate router setting information for sharing a transmission load of the network by referring to the network information database, and a router control unit for setting a router based on the route information determined by the route control unit and on the router setting information generated by the load sharing control unit.