Abstract: A gateway apparatus includes a translator connected to a first network for one or more controllers to control one or more devices, and one or more aggregators. The translator includes an acquisition unit which acquires load information concerning a load on each of the controllers, a control instruction reception unit which receives a control instruction for a device from a client via the second network, a determination unit which determines whether the instruction is an aggregation target, based on the information, a first transfer unit which transfers the instruction to the aggregator corresponding to the instruction, and a second transfer unit which receives an aggregate control instruction from the aggregator. The aggregator includes a third transfer unit which receives the instruction from the translator, an aggregation unit which aggregates the plurality of instructions into one aggregate control instruction, and a fourth transfer unit which transfers the aggregate control instruction.

Abstract: In a network system formed by one or a plurality of hosts having a function for accessing Internet, and a router for connecting each host and the Internet through an accessing communication path of a provider, two types of IP address including first type IP addresses and second type IP addresses are generated and selectively used by each host, according to two types of prefix including first type prefixes and second type prefixes that have shorter valid periods than the first type prefixes, which are advertised from the router periodically.

Abstract: A communication apparatus includes a storage device to store security associations to be exchanged between an opposite party's apparatus, an update device to update the security associations stored in the storage device, before starting a sleep mode for a power-saving operation, and a notification device to notify a message of updating of the security associations by the update device to the opposite party's communication apparatus.

Abstract: In a name resolution device for managing a name of each node connected to a network and an address for identifying each node, a node information containing a name of a node, a network identification information, a prefix indicating a position on the network, and an interface identification information of a node is stored for each node, and the node information of other nodes connected to the network is collected through the network. Then, the stored node information is updated according to the collected node information of the other nodes, by updating the stored prefix by using the interface identification information contained in the collected node information as a key.

Abstract: When a print processing apparatus is in a power saving mode, an information processing apparatus informs, for the print processing apparatus, the user that the print processing apparatus is in the power saving state. It can thus be made known to the user that the print processing apparatus is in the power saving state.

Abstract: In a network system formed by one or a plurality of hosts having a function for accessing Internet, and a router for connecting each host and the Internet through an accessing communication path of a provider, two types of IP address including first type IP addresses and second type IP addresses are generated and selectively used by each host, according to two types of prefix including first type prefixes and second type prefixes that have shorter valid periods than the first type prefixes, which are advertised from the router periodically.

Abstract: A relay device includes a reception unit which receives a startup packet including a first ID for starting up controllable equipment. The relay device also includes a transmission unit which transmits a first electric signal indicating the first ID to all link-downed Ethernet ports.

Abstract: In a source address selection system containing a router device connected to a plurality of Internet service providers, and a communication node connected to the router device, it becomes possible to utilize the multi-home environment effectively, by enabling the selection of the source address according to the egress router with respect to the Internet, by accounting for the state of connection with the Internet service provider.

Abstract: When handover is performed from a first network to a second network, a terminal transmits a reply request message to a home agent through the first network after new configuration of a tunnel for transmitting and receiving a packet through the second network. If the terminal receives a reply message corresponding to the reply request message through the first network, the terminal detects that the configuration of the tunnel for transmitting and receiving the packet through the first network can be deleted, and deletes the configuration of the tunnel.

Abstract: When handover is performed from a first network to a second network, a home agent transmits a reply request message to a terminal through the first network after new configuration of a tunnel for transmitting and receiving a packet through the second network. If the home agent receives a reply message corresponding to the reply request message through the first network, the home agent detects that the configuration of the tunnel for transmitting and receiving the packet through the first network can be deleted, and deletes the configuration of the tunnel.

Abstract: A gateway apparatus includes a translator connected to a first network for one or more controllers to control one or more devices, and one or more aggregators. The translator includes an acquisition unit which acquires load information concerning a load on each of the controllers, a control instruction reception unit which receives a control instruction for a device from a client via the second network, a determination unit which determines whether the instruction is an aggregation target, based on the information, a first transfer unit which transfers the instruction to the aggregator corresponding to the instruction, and a second transfer unit which receives an aggregate control instruction from the aggregator. The aggregator includes a third transfer unit which receives the instruction from the translator, an aggregation unit which aggregates the plurality of instructions into one aggregate control instruction, and a fourth transfer unit which transfers the aggregate control instruction.

Abstract: A control system includes a control device for controlling a plurality of actuators by executing a plurality of functions based sensor values from a plurality of external sensors and a function providing device for providing the control device with the functions to be executed by the control device. The function providing device accepts a program including a plurality of functions from a user device, finds a new function among the functions which has not been received yet and pass the same function to the control device. The control device executes functions passed from the function providing device based on values of the external sensors and controls the actuators by transmitting values of output arguments of the functions to the actuators.

Abstract: An apparatus communicating with a gateway apparatus on a control system network for facility equipment, via an information system network, includes a unit which stores not less than one piece of virtual point information defining a virtual point combined with not less than one piece of facility equipment, a user authentication unit which performs user authentication for a user associated with a client, a unit which receives a request for control on one virtual point from the client, a unit which creates a remote control command for the facility equipment associated with the request based on the virtual point information when the request has been received and the user authentication has succeeded, and a unit which transmit the remote control command to the gateway via the information system network when tenant authentication for a tenant associated with the agent apparatus which is performed by the gateway has succeeded.

Abstract: A mobile IP communication scheme for supporting a mobile computer moving over different address spaces is disclosed. A packet relay device for relaying packets having an address of the mobile computer device as a destination or source is provided at a border between a private address space and a global address space, where the packet relay device has a packet receiving unit for receiving a packet in a first format using a global address which is transmitted by the mobile computer for a location registration from a visited site managed by a global address system, and checking a content of the packet, and a packet transfer unit for transferring the packet in a second format using a private address, to a correspondent computer in a home network of the mobile computer managed by a private address system, according to the content of the packet.

Abstract: An equipment set generation support apparatus (a) acquires, from a plurality of equipments connected to a network, state change event information notifying a state change of each equipment and an occurrence time and date of the state change, (b) sets a detection condition including a start time and an end time of a detection period, (c) selects state change event information whose occurrence time and date of the state change falling within the detection period from the state change event information acquired, and (d) detects, from the plurality of equipments, a set of equipments whose states change in the detection period and a set of state values after the state change of each equipment based on the state change event information selected.

Abstract: A facility control system for controlling devices shared in spaces, a plurality of operation units being equipped in the spaces respectively, each operation unit configured to input a operation request for operating the devices, calculates a priority level of each space during the reservation time of each space based on at least one of the use purpose of each space and the attribute information of each user of each space, detects a type of the operation request input from each operation unit provided in each space, detects, whenever the type of the operation request is detected for each space, a collision between types of the latest operation requests detected for respective spaces based on the types, and operates the devices according to one of the types which is detected for one of the spaces whose priority level is highest when the collision is detected.

Abstract: There is provided with a wireless tag reader communicating with a plurality of wireless tags each of which retains tag information piece and a bloom filter, the wireless tag reader comprising: a transmitter configured to transmit a read request signal simultaneously to the wireless tags to request the wireless tags to read out the bloom filters; a receiver configured to receive bloom filter signals simultaneously from the wireless tags to acquire a colliding bloom filter signal; a decoder configured to decode the colliding bloom filter signal to acquire a composite bloom filter which is equivalent to logic operation OR on the bloom filters; a data storage configured to store tag information pieces; and a filter verifier configured to verify each of tag information pieces in the data storage with the composite bloom filter to detect tag information pieces for which a verification result is positive or negative.

Abstract: When a first mobile node is moved, it reports binding information including a compatible node identifier (virtual mobile guaranteed general network identifier and a node identifier) and a compatible position identifier (mobile guaranteed real network identifier identified on a network to which the first mobile node is moved, and a node identifier) to a first server which is assigned to the first mobile node. A second mobile node also reports the binding information to a second server. For communicating with the second mobile node to which a second server is assigned, if the destination address of a packet addressed to the second mobile node is designated with a compatible node identifier, the first mobile node acquires the binding information of the second mobile node from the second server.

Abstract: A communication control apparatus includes: a storage device, an input device, an output device, a communication control apparatus, a main storage device and a processor (CPU). The CPU includes an address segmentation unit, a weight detector and a connection controller. The address segmentation unit splits a received packet, the weight detector detects the weight of each segment of the packet, and the connection controller employs the weight to provide connection control for the packet.

Abstract: A communication control apparatus includes: a storage device, an input device, an output device, a communication control apparatus, a main storage device and a processor (CPU). The CPU includes an address segmentation unit, a weight detector and a connection controller. The address segmentation unit splits a received packet, the weight detector detects the weight of each segment of the packet, and the connection controller employs the weight to provide connection control for the packet.