Abstract:
A transmission system for managing communication between a first terminal and a second terminal includes a reception unit configured to receive request information from the first terminal, the request information indicating a category of a request of a first user of the first terminal; and a transmission unit configured to transmit an output request to the second terminal. The second terminal outputs image data to be displayed on the first terminal according to the category of the request of the first user of the first terminal upon receiving the output request.
Abstract:
A transmission terminal is connected to a management device via a network. The transmission terminal includes an acquisition unit configured to acquire a communication state of another transmission terminal from the management device; a selection accepting unit configured to accept a selection of the another transmission terminal from a user to participate in an established session that has been already established for the another transmission terminal; a participation determination unit configured to determine that it is not possible to participate in the established session when the communication state of the another transmission terminal whose selection has been accepted indicates participation restriction; and a communication unit configured not to transmit a participation request to the management device when it is determined that the participation is not possible.
Abstract:
A multicast data communication system is provided that has high security, and prevents problems such as an attack by a malicious user creating a great number of meaningless tables at nodes in the network. Clients regularly transmit request packets toward a server; a node receives the request packet, and subsequently receives a delivery-table-creation packet or a delivery packet from the server; if the node has no delivery table corresponding to the server, the node creates the delivery table, registers the addresses of the clients, and their request packet arrival times, and regularly transmits the request packet toward the server; when the node has received a delivery packet from the server, the node duplicates and delivers the delivery packet only to those clients whose request packet arrival times, registered in the delivery table, are within a fixed period from the arrival of the delivery packet.
Abstract:
A speaker diaphragm 1 includes a first diaphragm portion 5, a second diaphragm portion 6 integrally molded with the first diaphragm portion 5, and a bobbin-receiving portion 7 protruding from a back side of a connecting portion between the first diaphragm portion 5 and the second diaphragm portion 6, with one end of a voice coil bobbin 2 being bonded to the bobbin-receiving portion 7. The bobbin-receiving portion 7 includes a first extension 8 extending backwards from the first diaphragm portion 5 and a second extension 9 extending backwards from the second diaphragm portion 6. A bobbin-receiving groove 10 is defined between the first extension 8 and the second extension 9. The voice coil bobbin 2 is inserted in and bonded to the bobbin-receiving groove 10.
Abstract:
An information processing terminal includes: circuitry to receive from a management system via a network, a candidate identifier of each one of one or more candidate counterpart information processing terminals that are previously registered for the information processing terminal; and to determine, in response to acceptance of an identifier that has been input, whether the accepted identifier matches any one of the candidate identifiers being received. Based on a determination indicating that the accepted identifier matches any one of the candidate identifiers, the circuitry transmits to the management system first request information requesting to start communication with the candidate counterpart information processing terminal identified with the accepted identifier. Based on a determination indicating that the accepted identifier does not match any one of the candidate identifiers, transmit to the management system second request information requesting to start communication with a counterpart information processing terminal identified with the accepted identifier, the circuitry transmits the second request information including destination information that differs from destination information included in the first request information.
Abstract:
An information processing terminal: stores a counterpart list of one or more counterpart identifiers each representing a communication counterpart candidate of the information processing terminal; accepts a request destination identifier representing a counterpart information processing terminal, and participation authentication information; determines whether the request destination identifier matches any one of the counterpart identifiers; generates one of first communication start request information and second start request information, each request including the request destination identifier, the participation authentication information, and a request for communicating with the counterpart information processing terminal; and transmits the communication start request information to the communication management apparatus. When the request destination identifier matches the counterpart identifier, the circuitry generates the first start request information addressed to the communication management apparatus. When the request destination identifier does not match the counterpart identifier, the circuitry generates the second start request information addressed to the counterpart information processing terminal.
Abstract:
An information processing apparatus includes: a transmitter to transmit content data to one or more counterpart information processing apparatuses through a network to have a communication with the one or more counterpart information processing apparatuses, the content data being at least one of image data and audio data; a receiver to receive, from a first information processing apparatus of the one or more counterpart information processing apparatuses, a recording start notification indicating that the first counterpart information processing apparatus starts recording or is recording the content data that is transmitted from the information processing apparatus, the recording start notification being transmitted with first identification information of the first counterpart information processing apparatus that is recording; and circuitry to output, based on the recording start notification, notification information indicating that recording of the communication is being performed, in association with information regarding the first counterpart information processing apparatus.
Abstract:
A communication terminal determines whether counterpart information of a candidate counterpart communication terminal obtained from a memory is described in a first format or a second format, and transmits a communication start request to one of a first server and a second server based on a determination. When the determination indicates that the obtained counterpart information is described in the first format, the communication start request is transmitted to the first server on the first network. When the determination indicates that the obtained counterpart information is described in the second format, the communication start request is transmitted to the second server on the second network.
Abstract:
A communication system including: a first acquiring unit configured to obtain start request information for specifying whether participation in the session of a terminal is limited or not, and participation authentication information for authenticating participation in the session for the terminal; a session manager configured to establish the session; a second acquiring unit configured to obtain participation request information for requesting participation of a third terminal in the session, and the participation authentication information input from the third terminal; and a participation determination unit configured to compere the participation authentication obtained by the first acquiring unit and by the second acquiring unit, and determine whether participation of the third terminal in the session is allowed or not, and the participation determination unit configured to record terminal information of the third terminal, and to reject a subsequent participation request of the third terminal in the session thereafter.
Abstract:
A multicast data communication system is provided that has high security, and prevents problems such as an attack by a malicious user creating a great number of meaningless tables at nodes in the network. Clients regularly transmit request packets toward a server; a node receives the request packet, and subsequently receives a delivery-table-creation packet or a delivery packet from the server; if the node has no delivery table corresponding to the server, the node creates the delivery table, registers the addresses of the clients, and their request packet arrival times, and regularly transmits the request packet toward the server; when the node has received a delivery packet from the server, the node duplicates and delivers the delivery packet only to those clients whose request packet arrival times, registered in the delivery table, are within a fixed period from the arrival of the delivery packet.