Abstract: An apparatus, system, method, and program stored in a non-transitory recording medium, each of which generates a message indicating that image data is not received or only sound data is received, when a relay device transmits only the sound data from a transmission terminal to a counterpart transmission terminal, and transmits the message to the counterpart transmission terminal for display to a user at the counterpart transmission terminal.

Abstract: A communication management system, a communication method, and a non-transitory recording medium storing a communication control program, each of which is capable of determining whether to start a communication session with a third communication terminal that requests to participate in a communication session being carried by at least a first communication terminal and a second communication terminal, based on session identification information and location information that are received from the third communication terminal.

Abstract: A communication management system manages communication terminals transmitting and receiving communication data.

Abstract: A transmission system includes a request source terminal including a first transmission unit configured to send a transmission request including communication identification information of a destination; and an information processing apparatus including a reception unit configured to receive the transmission request; a readout unit configured to read out from a storage device, identification information registration information in which communication identification information of a first terminal and communication identification information of a user who uses the first terminal are registered, which is associated with the communication identification information of the first terminal; and a determination unit configured to determine a terminal of the destination to be called in response to the transmission request according to whether the communication identification information of the destination included in the transmission request is registered in the identification information registration information as

Abstract: A communication management system, a communication method, and a non-transitory recording medium storing a communication control program, each of which is capable of determining whether to start a communication session with a third communication terminal that requests to participate in a communication session being carried by at least a first communication terminal and a second communication terminal, based on session identification information and location information that are received from the third communication terminal.

Abstract: There is provided a communication system capable of achieving a high usage efficiency of frequencies without the need for cooperation of multiplexed users. A communication system communicates over frequency channels set by dividing a frequency bandwidth assigned to the system allows interference between channels by overlapping the adjacent frequency channels with each other in the frequency domain, or a transmitting and receiving device, which transmits and receives a signal by allowing the interference between symbols at a waveform level for each channel to decrease the occupied bandwidth, is provided with ICI removal and ISI compensation filter 111 serving as either an ICI removal filter for removing the interference between channels or an ISI compensation filter for compensating the interference between symbols.

Abstract: A transmission system includes a transmission management system including: a first receiving unit that receives user identification information from transmission terminals; a user identification information management unit that stores user identification information in association with transmission terminal identification information of transmission terminals serving as transmission sources of the user identification information in the first storage unit; a first extracting unit that refers to, when the first receiving unit receives request for presentation from a certain transmission terminal, the first storage unit and extracts transmission terminal identification information of transmission terminals in transmission and user identification information associated with the transmission terminal identification information; and a second transmitting unit that transmits the extracted transmission terminal identification information and the extracted user identification information in association with each other

Abstract: A communication management system includes a storage unit, a receiving unit, and a first transmitting unit. The storage unit stores therein: an address of a first terminal that establishes a first session with a relaying apparatus; an address of a conversion system that establishes a second session with the relaying apparatus, the conversion system mutually converting a first communication scheme and a second communication scheme; information for identifying the second terminal that establishes a third session with the conversion system; and a host name of another communication management system managing an address of the second terminal. When the receiving unit receives, from the first terminal, a request to start communication between the first terminal and the second terminal, the first transmitting unit transmits, to the relaying apparatus, the address of the first terminal, the address of the conversion system, the terminal identifying information, and the host name.

Abstract: A computer program product includes a non-transitory computer-readable medium containing an information processing program. The program causes a computer to function as: a first communication control unit that calculates a first transfer rate by communicating with a communication quality check server via a network; a second communication control unit that calculates delay information about communication delay by communicating with the communication quality check server via the network; an estimation unit that estimates a second transfer rate based on the first transfer rate and the delay information, the second transfer rate being lower than the first transfer rate; and a display control unit that displays communication quality information about communication quality based on the first transfer rate and the second transfer rate on a display unit.

Abstract: A transmission terminal that communicates contents data including sound data with a counterpart transmission terminal, detects a delay time indicating a delay in receiving the contents data from the counterpart transmission terminal, and interrupts transmission of the contents data other than the sound data to the counterpart transmission terminal when the delay time exceeds a predetermined value.

Abstract: A control system includes a plurality of control apparatuses each capable of controlling a first communication terminal connected to the control apparatus. Each control apparatus transmits search information including terminal identification information for identifying a second communication terminal to other control apparatuses of the plurality of control apparatuses, searches for one of the other control apparatuses that is connected to the second communication terminal based on responses that are transmitted from the other control apparatuses in response to the search information, and transmits state information indicating a state of the first communication terminal connected to the control apparatus to the searched control apparatus connected to the second communication terminal.

Abstract: A nonaqueous secondary battery which can be made thinner without deterioration of battery performance, and a method for manufacturing the battery. The nonaqueous secondary battery includes a positive electrode and a negative electrode which are substantially arranged in the same plane so that respective end surfaces face each other at a distance; a substrate by which the positive electrode and the negative electrode are affixed and supported; a cover member having gas barrier properties, which defines an airtight chamber together with the substrate, in the chamber in which the positive electrode and the negative electrode are contained; and an electrolyte which is contained in the airtight chamber so as to be positioned at least between the facing end surfaces of the positive electrode and the negative electrode, and which relates to the battery reaction between the positive electrode and the negative electrode.

Abstract: A plurality of control apparatuses each stores, in a memory, relay device identification information for identifying one or more relay devices of a plurality of relay devices available for selection by the control apparatus, and selects, in response to connection of a first communication terminal to the control apparatus, one of the one or more relay devices having the relay device identification information stored in the memory as a first relay device to be connected to the first communication terminal to relay content data for the first communication terminal under control of the control apparatus.

Abstract: A control apparatus determines one of a plurality of relay devices as a representative relay device to manage a relay destination of content data in a session to be established. In response to receiving a request for starting relay of content data, from a communication terminal, the control apparatus transmits, with a request for starting relay of content data, relay device identification information for identifying the representative relay device to a relay device connected to the communication terminal, to cause the relay device to further transmit the request for starting relay of content data to the representative relay device identified with the relay device identification information of the representative relay device.

Abstract: A communication management system includes: a storage unit configured to store destination information of a first communication terminal that establishes a first session with a relay device that relays communication data, destination information of a conversion system that performs mutual conversion between communication schemes of communication data transmitted from the first communication terminal and a second communication terminal and establishes a second session with the relay device, and destination information of the second communication terminal that establishes a third session with the conversion system; a receiving unit configured to receive start request information to start communication between the communication terminals from the first communication terminal; an extracting unit configured to extract destination information of each communication terminal and the conversion system stored in the storage unit, based on the received start request information; and a transmitting unit configured to tra

Abstract: An information processing apparatus includes one or more processors configured to receive image data from another information processing apparatus. The processor includes a reception unit that receives call information from the other information processing apparatus when the processor is in a state of receiving at least the image data from the other information processing apparatus, and a calling sound output unit that outputs a calling sound upon reception of the call information by the reception unit.

Abstract: A transmission management system stores association information that associates, for each one of a plurality of starting terminals, starting terminal identification information for identifying the starting terminal capable of requesting to start communication with one or more candidate counterpart terminals, and candidate counterpart terminal identification information for identifying each one of the one or more candidate counterpart terminals.

Abstract: A transmission system having a first transmission terminal and a second transmission terminal includes a first communications connector to connect first data communications between the first transmission terminal specified by first identification information and the second transmission terminal specified by second identification information, an identification information creating part to create fourth identification information of the second transmission terminal when receiving a request for connecting second data communications between the first transmission terminal and the second transmission terminal, and a second communications connector to acquire third identification information in association with the first identification information by referring to registration information registering the third identification information in association with the first identification information of the first transmission terminal, and connect the second data communications between the first transmission terminal specif

Abstract: A communications system includes communications terminals connected to a management server.

Abstract: Disclosed is a transmission system including a first transmission terminal and a second transmission terminal in which the first transmission terminal transmits data to the second transmission terminal.