Abstract: The invention provides a gold-supporting catalyst comprising gold nanoparticles and a carrier consisting of porous ceramic obtained by firing a mixture comprising an aluminum compound, a lime component, and a plastic clay containing 1% by mass or less of feldspars and quartz, wherein the gold nanoparticles are supported in an amount of 0.01 to 10 parts by mass on the carrier based on 100 parts by mass of the carrier.

Abstract: A battery device includes battery module, each including an assembled battery and a battery monitoring circuit. The assembled battery comprises battery cells. The battery monitoring circuit measures voltages of the battery cells, current and temperature levels of the assembled battery. A control circuit is connected to the battery monitoring circuits through a communication line and supplies power to the battery monitoring circuits. The control circuit communicates with the battery monitoring circuits through the communication line. Each battery monitoring circuit is configured to monitor signals transmitted on the communication line for a predetermined time period after its startup, and then to select a communication ID to one that does not conflict with any other ID used to communicate through the communication line during the predetermined time period. The selected ID is then transmitted on the communication line.

Abstract: A battery device includes battery module, each including an assembled battery and a battery monitoring circuit. The assembled battery comprises battery cells. The battery monitoring circuit measures voltages of the battery cells, current and temperature levels of the assembled battery. A control circuit is connected to the battery monitoring circuits through a communication line and supplies power to the battery monitoring circuits. The control circuit communicates with the battery monitoring circuits through the communication line. Each battery monitoring circuit is configured to monitor signals transmitted on the communication line for a predetermined time period after its startup, and then to select a communication ID to one that does not conflict with any other ID used to communicate through the communication line during the predetermined time period. The selected ID is then transmitted on the communication line.

Abstract: According to one embodiment, a telephone exchange system includes a plurality of telephone terminals and a telephone exchange apparatus. The plurality of telephone terminals connected to a communication network. The telephone exchange apparatus registers the telephone terminals through the communication network, and execute multicast packet transmission of media signal including at least one of picture, voice, and data to the telephone terminals connected to the communication network. A first telephone terminal of the telephone terminals comprises a packet transfer configured to convert a received multicast packet into a unicast packet receivable by a second telephone terminal, and sends the converted unicast packet to the second telephone terminal.

Abstract: According to one embodiment, a telephone exchange apparatus includes a generator configured to automatically generate the host name information in accordance with a predetermined condition, when a registration request about an arbitrary communication apparatus to the management table is issued, and a controller configured to register the host name information generated by the generator in the management table by associating the host name information with the corresponding-communication apparatus.

Abstract: According to one embodiment, there is provided a communication system includes endpoints and server units. The endpoints include a transmitter and an information assignment module. The transmitter transmits a message of the registration request to one of the server units. The information assignment module assigns information used to discriminate a cause of generation of the registration request to the message. The server units include a specification module, a determination module and a registration processor. The specification module specifies the cause based on the information assigned to the received message. The determination module determines whether or not permit registration of the endpoint as a source of the received message based on the specified cause and priority level. The registration processor registers the endpoint when the registration is permitted. The registration processor instructs the endpoint to redirect the message when the registration is not permitted.

Abstract: According to one embodiment, a telephone system comprises networks connected mutually, terminals and servers. The terminals belong to any one of the networks. The servers control each of networks and accommodate terminals. The server comprises database, manager and controller. The terminals and the server of their assignment destinations are associated with one another in the database. The manager updates to synchronize among the databases and the servers at movement destinations as the terminals under its own control move to control by other servers. The controller specifies a server for controlling a terminal at incoming call destination of outgoing call, destined to another network, from the databases transmit a call message to the specified server when the outgoing call toward another network is generated from the terminal under its own control to another network. The databases are sequentially synchronized among the servers as calls are generated among the terminals.

Abstract: According to one embodiment, there is provided a telephone system comprises an exchange apparatus to be connected to a best-effort type network and a telephone terminal to be connected to the exchange apparatus. The exchange apparatus includes a first interface unit which is connected to the best-effort type network, a second interface unit which forms a communication route differing from the first interface unit, a detection unit which detects deterioration in a quality of service of a call during establishment between the telephone terminal and its partner via the first interface unit and the best-effort type network, and a call moving unit which moves the call to a communication route passing through the second interface unit when the deterioration is detected.

Abstract: According to one embodiment, a telephone exchange apparatus includes a memory stores a management table in which a connecting destination ID specifying a communication partner on the packet communication network and a first waiting time from a time of signal transmission to the communication partner up to a time of an arrival of a response signal are associated with each other, a monitoring unit refers to the management table and monitors presence or absence of the response signal from the communication partner within the first waiting time corresponding to connection ID of the communication partner based on the reference result, and a controller stops transmission of a signal necessary for communication establishment to the connecting destination ID in the management table and updates first waiting time corresponding to the connecting destination ID in the management table into second waiting time shorter than the first waiting time.

Abstract: According to one embodiment, a main apparatus of a communication system includes a communicator which registers a first management table in which terminal IDs specifying the plurality of communication terminals are associated with connection IDs specifying the plurality of interface units to the registration server, to communicate between the communication terminals and the packet communication network through each session of the plurality interface units, and a controller which updates the first management table registered in the registration server to a second management table in which association among the terminal IDs and the connection IDs is changed based on prescribed conditions.

Abstract: According to one embodiment, a gateway apparatus includes a pool which retains the plurality of media gateway channel resources in each of a plurality of resource groups constituted by dividing the plurality of media gateway channel resources in accordance with necessity levels thereof, a memory which stores a group table indicating the correspondence/relation between the plurality of resource groups and the communication terminals belonging to these resource groups, and a controller which refers to the group table when an arbitrary communication terminal among the plurality of communication terminals requests to use the media gateway channel resource and which reads from the pool an idle media gateway channel resource in the corresponding resource group for the arbitrary communication terminal based on the result of the reference to allocate the idle media gateway channel resource to the arbitrary communication terminal.

Abstract: According to one embodiment, an exchange system includes a computer includes a memory which stores a table in which the first display control data is associated with second display control data more detailed in comparison to the first display control data for each of the maintenance function, and a first transmitter which refers to the table based on the first display control data, and transmits the second display control data corresponding to the first display control data to the telephone exchange apparatus based on the reference result, and the telephone exchange apparatus includes a second transmitter which transmits an acquiring request for the second display control data to the computer, and a controller which receives the second display control data from the computer in response to the transmission of the acquiring request to display the second display control data onto the display unit of the first telephone terminal.

Abstract: According to one embodiment, an exchange apparatus comprising a first storing unit which includes a plurality of voice storing areas, a read unit which reads, from the first storing unit, information indicating one of the voice storing areas corresponding to a request to record a message, upon receiving the request from an information terminal, if the information terminal has a web function, a second storing unit which provides the information, indicating the one voice storing area and read by the read unit, with link information used for accessing the one voice storing area, to generate a web page and store the generated web page, and a transmission unit which generates URL information used to access the web page stored in the second storing unit, and transmit the web page to the information terminal.

Abstract: A key telephone apparatus BT periodically transmits actual-use information including a part of a service function group and use amount of each service function to a customer center CC via a public network PNW. The customer center CC calculates a use charge of each service function based on the received actual-use information, and notifies a user's maintenance personal computer PC of the use charge via Internet INW. Subsequently, confirming payment of the use charge for each service function by a user, the customer center CC creates a license code for changing a flag indicating a regulation state of the service function of the key telephone apparatus BT to transmit the license code to the corresponding key telephone apparatus BT based on the payment.

Abstract: A personal computer having a speech recognition board and speech synthesis board are connected to a key service unit via a control information communication path and media information communication path. Upon executing an exchange service, it is checked if that exchange service uses media information. When the service uses media information, up and down channels are set on the media information communication path, and voice guidance and a voice dial signal for voice dialing are transferred via these channels, thus making the personal computer execute speech recognition required for voice dialing and a search process of a callee telephone number on the basis of the recognition result.