Ricoh Company, Ltd.

Naoki Umehara

Takahiro Asai

Hiroshi Hinohara

Atsushi Miyamoto

Takeshi Horiuchi

Takuya Soneda

Kaoru Maeda

Takuya Imai

Yuuta Hamada

Yoichi Kanai

Mototsugu Emori

Yukiko Sahashi

Tetsuya Miida

Yuya Akimoto

A conference system includes a management system connected via a network to a first communication terminal and a second communication terminal. The management system includes a processing circuitry configured to implement a generation unit configured to generate a topic in response to a conference topic issuance request made by a first user to hold a conference between the first communication terminal and the second communication terminal; and an authorization unit configured to authorize the first user to perform publication and subscription for the topic in response to the conference topic issuance request made by the first user, and to authorize a second user to perform publication and subscription for the topic in response to an invitation request made by the first user to invite the second user to the conference, the invitation request including a topic name indicating a message for the second user.

Conference system, information transmission method, and storage medium

A disclosed control system configured to control transmission of content data between communication terminals includes one or more processors, and a memory storing instructions that, when executed by the one or more processors, cause the control system to receive a transmission request including attribute information indicating an attribute of the content data for transmitting the content data from a first communication terminal, and perform control for transmitting the content data to a second communication terminal specified based on the destination information in response to the attribute information being in a predetermined format, the predetermined format including destination information indicating a destination of the content data and to perform control for transmitting the content data to a third communication terminal that has requested reception of the content data having the attribute indicated by the attribute information in response to the attribute information not being in the predetermined format.

Control system, communication control method, and program product

A management system includes a transmission/reception unit configured to receive transmission terminal identification information of a plurality of transmission terminals used for transmitting/receiving content data, a relay device extracting unit configured to specify relay device identification information of a relay device that can be used to be common to the plurality of transmission terminals among the relay device identification information managed by a relay device selection managing unit based on the received transmission terminal identification information, and a selection unit configured to select a relay device based on relay device identification information for which acceptability/unacceptability information managed by the relay device managing unit represents being acceptable among specified relay device identification information as a relay device relaying transmission/reception of the content data.

Management system, transmission system, management method, and computer-readable recording medium

A transmission system includes: a transmission management system and a fee management system. The transmission management system manages participation time information using a given transmission terminal. The fee management system manages participation fee information. The transmission management system includes a transmission unit that transmits the participation time information to the fee management system. The fee management system includes: a user management unit that manages user identification information and terminal identification information in a manner linked; a reception unit that receives the participation time information transmitted from the transmission management system; a participation time calculation unit that calculates a total participation time of conversation; a participation fee calculation unit that calculates a participation fee; and a participation fee summing unit that refers to the user management unit, sums up participation fees of each transmission terminal, and calculates a total participation fee for each user.

Transmission system, participation fee management method, computer program product, and maintenance system

A management system, a method of controlling communication, and a communication system. The management system and method includes receiving a request to distribute information related to a prescribed attribute from a first communication terminal that is authenticated by a first client, receiving a request to receive a message related to the prescribed attribute from a second communication terminal that is authenticated by a second client, and controlling distribution of the information related to the prescribed attribute to the second communication terminal based on whether a first service that is used by the first client and a second service that is used by the second client are each associated with the prescribed attribute. The communication system includes a first communication terminal executing a first application, a second communication terminal executing a second application, and a management system to communicate with the first communication terminal and the second communication terminal.

Management system, communication control method, and communication system

A management system includes a reception unit configured to receive identification information for identifying an account, allocated by an authentication apparatus, corresponding to a terminal, the terminal being authenticated by the authentication apparatus, and a management unit configured to determine whether a function provided by the management system can be used by the terminal based on the identification information received by the reception unit.

Management system, management method, and recording medium for managing use of function to terminal

A control apparatus includes at least one processor configured to receive a request from a first communications terminal from among a plurality of communications terminals to select one or more relay apparatuses that relay content data transmitted and received between the first communications terminal and a second communications terminal from among the communications terminals; select one or more relay apparatuses included in one or more networks usable by the first communications terminal and the second communications terminal in response to the received request; and transmit identification information of the selected one or more relay apparatuses to the first communications terminal.

Control apparatus, communications control system, and non-transitory recording medium that stores program

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.

Apparatus, system, and method of determining destination for state information, and recording medium

A communication terminal, a communication system and an output method. The communication terminal and the output method include storing, in a memory, a plurality of communication applications including a first communication application and a second communication application, outputting first status information indicating a first status of the first communication application according to a call control information transmitted by the first communication application, and outputting second status information indicating a second status of the second communication application according to a resource that is used by the first communication application in the first status. The communication system includes a publish-subscribe server and the communication terminal, and the communication terminal further includes sending a pub request to publish the call control information and a sub request to subscribe to the call control information to the publish-subscribe server.

Communication terminal, communication system, and output method

A control system includes a first controller and a second controller. The first controller accepts a request to start communication between communication terminals. The first controller imposes a restriction so that a first communication terminal connected to the first controller does not start communication other than the communication performed according to the request. The first controller transmits, to the second controller, terminal identification information for identifying a second communication terminal connected to the second controller. The second controller imposes, based on the terminal identification information, a restriction so that the second communication terminal does not start any communication other than the communication performed according to the request. The second controller transmits, to the first controller, restriction information indicating that the restriction on the second communication terminal is completed. The first controller performs processing related to the start of the communication performed according to the request after the restrictions are completed.

Control system, communication system, computer program, controlling method, and computer program product

A selecting system selects, among controllers controlling a session between communication terminals, a controller to be connected to a communication terminal. The selecting system includes a state management unit, a load management unit, an accepting unit, a calculating unit, and a selecting unit. The state management unit manages, for each controller, state information indicating a state of communication of a communication terminal connected to the controller. The load management unit manages, for each state of communication, load information indicating a degree of load. The accepting unit accepts a connection request to the controller from a communication terminal not connected to the controller. The calculating unit calculates, for each controller, the degree of load related to the control based on the state information and the load information. The selecting unit selects a controller to be connected to the communication terminal as a connection requester terminal based on the degree of load.

Selecting system, communication management system, communication system, computer program, and method of selection

A communication terminal and a method of transmitting data. The communication terminal and the method includes transmitting, at a prescribed timing, first information from the communication terminal to a management system that manages communication between the communication terminal and a counterpart communication terminal, and transmitting from the communication terminal to the management system second information to be sent from the management system to the counterpart communication terminal connected to the management system through a network, when the management system does not receive the first information transmitted from the communication terminal for a prescribed length of time. The second information includes status information of each of a plurality of communication applications that operate in the communication terminal.

Communication terminal, communication system, and data transmission method

A control system includes controllers controlling a session between communication terminals. Each controller includes a state management unit, first and second updating units, and a receiver. The state management unit manages state information of each terminal indicating a state of connection between the terminal and the controller. When the state of connection between a first terminal and the controller is changed, the first updating unit updates state information of the first terminal. When the state of connection between a second terminal and another controller is changed, the receiver receives, from the other controller, changed state information of the second terminal indicating a state of connection between the second terminal and the other controller after being changed. The second updating unit updates the state information of the second terminal based on the received changed state information. The controller controls the session between the terminals based on the state information.

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.

Apparatus, system, and method of selecting relay device, and recording medium

A management system for managing a session for transmitting content data between a first terminal and a second terminal via a first relay apparatus and a second relay apparatus is provided. The management system includes a determination unit configured to determine a transmission quality of the content data transmitted in the session based on a transmission quality of the content data available for the first terminal and a transmission quality available for the second terminal, a first selection unit configured to select a first relay apparatus to which the first terminal is to be connected based on the determined transmission quality, and a second selection unit configured to select a second relay apparatus to which the second terminal is to be connected.

Growing community of inventors

Kanagawa, Japan

Naoki Umehara