Abstract: A communication management apparatus includes a receiver to receive image type information indicating a type of an image from a first communication terminal; circuitry to generate image data identification information for identifying image data to be transmitted from the first communication terminal to a second communication terminal, based on reception of the image type information; and a transmitter to transmit the image data identification information that is generated to the first communication terminal, and transmit the image data identification information that is generated and the image type information that is received to the second communication terminal.

Abstract: An image processing apparatus communicable with an image capturing device that captures image data includes circuitry. The circuitry acquires the image data captured by the image capturing device. The circuitry acquires type data indicating a type of the image capturing device. The circuitry determines the type of the image capturing device based on the acquired type data. Based on the determined type of the image capturing device, the circuitry determine a type of image processing to be performed on the acquired image data, and performs the determined image processing on the acquired image data.

Abstract: A communication terminal includes a memory, a receiver, and circuitry. The memory stores image data identification information identifying image data in association with image type information indicating a type of an image represented by the image data. The receiver receives specific image data and specific image data identification information identifying the specific image data from another communication terminal. The circuitry controls a display to display a specific image represented by the specific image data received by the receiver in a size according to the image type information associated with the specific image identification information in the memory.

Abstract: A communication control device is configured to control data communication between terminals using a communication network. The communication control device include: a status-information acquiring unit configured to acquire respective pieces of status information which represent operating states of the terminals; a reception-information acquiring unit configured to acquire respective pieces of reception information which represent states of the communication network when the terminals have received data; a communication determining unit configured to determine a type of communication on the basis of a combination of pieces of status information of multiple terminals that participate in the same communication; and a quality control unit configured to control quality of data that each terminal transmits or receives on the basis of the determined type of communication and the acquired reception information.

Abstract: A communication management apparatus includes a receiver to receive image type information indicating a type of an image from a first communication terminal; circuitry to generate image data identification information for identifying image data to be transmitted from the first communication terminal to a second communication terminal, based on reception of the image type information; and a transmitter to transmit the image data identification information that is generated to the first communication terminal, and transmit the image data identification information that is generated and the image type information that is received to the second communication terminal.

Abstract: A management system is provided that includes a memory storing a program and a processor configured to execute the program to implement processes of receiving a communication start request from a first terminal for starting communication with a second terminal corresponding to a communication counterpart of the first terminal, determining whether communication can be established between the first terminal and the second terminal based on information on a codec supported by the first terminal and information on a codec supported by the second terminal, and transmitting a determination result of the determination to the first terminal.

Abstract: A communication management apparatus includes a receiver to receive image type information indicating a type of an image from a first communication terminal; circuitry to generate image data identification information for identifying image data to be transmitted from the first communication terminal to a second communication terminal, based on reception of the image type information; and a transmitter to transmit the image data identification information that is generated to the first communication terminal, and transmit the image data identification information that is generated and the image type information that is received to the second communication terminal.

Abstract: A data transmission system including a plurality of terminal devices that are connected to a communication network and that transmit or receive content data among the terminal devices. At least one of the terminal devices that receives the content data includes a code amount change requesting unit that, based on an output time interval of an output signal corresponding to predetermined content data, transmits a code amount reduction request to request reduction of a code amount of the predetermined content data while designating a transmission source of the content data as a destination; and a code amount changing unit that, in response to a code amount reduction request transmitted from another terminal device, reduces a code amount of corresponding content data.

Abstract: A control system is provided. The control system includes a state management unit configured to control state information indicating a state of a communication terminal and a control unit configured to, when a first communication terminal and a second communication terminal communicate, determine whether content data should be transmitted from the first communication terminal to the second communication terminal and whether content data should be transmitted from the second communication terminal to the first communication terminal based on a set of the state information indicating the state of the first communication terminal and the state information indicating the state of the second communication terminal controlled by the state management unit.

Abstract: An information processing apparatus includes a receiver configured to receive images from other information processing apparatuses via a network; a band information acquirer configured to acquire reception band information of the receiver; a first display number determiner configured to determine a first number of the images to be displayed on a display device according to the reception band information; a second display number determiner configured to determine the first number as a second number of the images to be displayed on the display device, when the reception band information is stable, and determine a present number of the images presently displayed on the display device, as the second number, when the reception band information is unstable; and a display processor configured to display the second number of the one or more images on the display device.

Abstract: There is provided a transmission system transmitting at least one of image data and audio data among a plurality of transmission terminals. A first transmission terminal includes a state detector that detects whether a user is present therearound, and a controller that controls to transmit correspondence data corresponding to a result detected by the state detector to a second transmission terminal when a state detected by the state detector changes. The second transmission terminal changes quality of at least one of the image data and the audio data that is transmitted to the first transmission terminal in accordance with the correspondence data and transmits at least one of the image data and the audio data when the second transmission terminal receives the correspondence data.

Abstract: A communication terminal includes: a receiver to receive a plurality of items of content data respectively from a plurality of counterpart communication terminals through a session established between the communication terminal and the counterpart communication terminals via a communication network; and circuitry to: determine an available band of the communication network; select, from among the plurality of items of content data, one or more items of content data receivable by the communication terminal in accordance with the available band of the communication network and bands being used to receive the plurality of items of content data; and control a display to display information indicating the available band of the communication network in association with the selected one or more items of content data receivable by the communication terminal.

Abstract: The communication terminal determines whether a delay in output of an output signal based on first content data is detected, the first content data being received from a first counterpart communication terminal through a network, generates a first request for changing a code quantity of the first content data being received based on a determination indicating that the delay is detected, the first request including a reduction coefficient for determining an amount of reduction in the code quantity of the first content data being received, and transmits the first request to the first counterpart communication terminal that transmits the first content data, through the network.

Abstract: An image processing apparatus communicable with an image capturing device that captures image data includes circuitry. The circuitry acquires the image data captured by the image capturing device. The circuitry acquires type data indicating a type of the image capturing device. The circuitry determines the type of the image capturing device based on the acquired type data. Based on the determined type of the image capturing device, the circuitry determine a type of image processing to be performed on the acquired image data, and performs the determined image processing on the acquired image data.

Abstract: An information processing apparatus to display video data on a display apparatus includes a receiver to receive the video data from one or more other information processing apparatuses via a network, a video data determiner to determine the video data to be received by the receiver according to a communications status, a static image data storage to acquire static image data from the one or more other information processing apparatuses to store the acquired static image data, and a display processor to generate a screen having one or more areas to display the video data determined by the video data determiner in the areas. The display processor displays the static image data stored in the static image data storage in the areas when a determined number of the video data is less than a number of the areas.

Abstract: A terminal includes: a receiving unit receiving document data from an external device; an acquiring unit acquiring the network bandwidth that is available to transmit data; an assigning unit assigning, in accordance with the network bandwidth that is available to transmit data, a transmission rate to each set of data that is to be transmitted to a different terminal device; a determining unit determining, according to the transmission rate that is assigned to the document data, the quality of the document data that is transmitted from the terminal device to a different terminal device; a converting unit converting the quality of the document data that is input from the external device such that equal to or less than the determined quality is obtained; and an encoding unit encoding multiple sets of data that include the converted document data by using the transmission rate that is assigned to each of them.

Abstract: A communication terminal is controlled such that the communication terminal does not transmit content data from the communication terminal to one or more communication terminals through a first session, but transmits content data from the communication terminal to a selected communication terminal of the one or more communication terminals through a second session after the second session is established with the selected communication terminal.

Abstract: A communication terminal includes a memory, a receiver, and circuitry. The memory stores image data identification information identifying image data in association with image type information indicating a type of an image represented by the image data. The receiver receives specific image data and specific image data identification information identifying the specific image data from another communication terminal. The circuitry controls a display to display a specific image represented by the specific image data received by the receiver in a size according to the image type information associated with the specific image identification information in the memory.

Abstract: A communication apparatus includes circuitry to: obtain, before transmission of video data to a counterpart communication apparatus via a network, communication environment information to be used for determining magnitude of variation of communication quality of the counterpart communication apparatus; determine, using the obtained communication environment information, a coding setting of the video data in accordance with the magnitude of variation of the communication quality of the counterpart communication apparatus; and code the video data in accordance with the determined coding setting; and a transmitter to transmit the coded video data to the counterpart communication apparatus via the network.

Abstract: An information processing system includes a first information processing terminal and an information processing apparatus coupled to the first information processing terminal. The information processing system includes a storage unit configured to store codec data indicating a codec that can be used for performing communication between the first information processing terminal and a second information processing terminal other than the first information processing terminal; and a determining unit configured to make a first determination of determining whether there is a codec that can be used by both the first information processing terminal and the second information processing terminal, based on the codec data.