Abstract: A server device 10 includes a frame buffer 13 that stores the image; an encoder 14e that compresses the image; a whole screen moving image conversion determination unit 14m that detects, from the image, a moving image area to be compressed by using the encoder 14e; a screen generator 14b that compresses the image such that image degradation is lower than that of the encoder 14e; a high frequency screen update area identifier 14n that detects, from an area compressed by the encoder 14e, a change area that has changed and calculates an accumulated change area by accumulating the change area; and a transmitter that transmits, to a client terminal 20, a moving image by compressing the moving image area detected by the moving image area and the detected change area and an image of the accumulated change area that is compressed by the screen generator 14b.

Abstract: A communicating system includes: a plurality of communicating system terminal including a communication unit that transmits and receives audio or video data and a reproducing unit that reproduces the data received by the communication unit; and a server including an administering unit that administers the plurality of communicating terminals as a communication group, an approving unit that approves the transmission of the data by one of the communicating terminals of the communication group, a receiving unit that receives the data transmitted by the one of the communicating terminals, and a transmitting unit that transmits the data received by the receiving unit to the other communicating terminals of the communication group.

Abstract: An image transmission method includes using a computer processor, acquiring operation information at a transmission device from another device that instructs to scroll an image; determining a scroll direction and a scroll speed based on the operation information; generating a moving image from a plurality of images that are sequentially displayed on a screen of the other device at a display time interval when an image displayed on the screen of the other device is scrolled to the scroll direction at the speed for a time; and transmitting the moving image to the other device.

Abstract: An information processing device includes a storage storing information indicating a first region subjected to moving-image compression and transmission; an identification unit identifying a second region where the update amount of an image is greater than or equal to a threshold value; a determination unit determining whether the image of the second region being associated with the moving image of the first region is to be transmitted, based on an overlapping relationship between the first region and the second region; and a transmission unit transmitting an image of a region including a portion of the second region, following the transmission of the image of the first region, with the image of the region being subjected to moving-image compression, and transmitting information indicating a display position of the image subjected to moving-image compression, when the second region is to be transmitted with being associated with the first region is determined.

Abstract: An information processing apparatus that generates images for displaying a computer execution result on a display unit of a terminal device connected through a network and that transmits the images to the terminal device. The apparatus includes an image memory that holds the images; a first transmitting unit that transmits the images, a detecting unit that detects an area obtained by updating accumulated changes between frames of the images or a frequency of changes between frames of the images, and a second transmitting unit that compresses the images by a compression method and that transmits the compressed images, when the area or the frequency detected by the detecting unit is larger than or equal to a predetermined threshold, the compression method being different from a compression method for the first transmitting unit.

Abstract: An information processing device includes a communication unit configured to connect to a network; a memory configured to hold an image indicating an execution result of a virtual machine; and a processor configured to execute processing, wherein the processor compresses, on the basis of first compression processing, an image in a region in which there is the change and transmits the compressed image to a terminal device connected through the network, discriminates a frequently changed region, halts the first compression processing and the transmission processing, with respect to the discriminated frequently changed region, performs second compression processing, in which the compression ratio of a temporally continuous image is higher than that of the first compression processing, on an image in the discriminated frequently changed region, and transmits the image compressed on the basis of the second compression processing to the terminal device.

Abstract: An information processing apparatus can be installed in a DMZ and is connectable to an intranet and to an external network. The apparatus includes first means for transmitting or receiving a signal over the intranet, and transmitting or receiving a signal over the external network, to cause a call to be established over both of the intranet and the external network; and second means for transmitting and receiving data over the established call.

Abstract: An information processing apparatus for generating a plurality of images to be displayed on a display unit of a terminal device connected via a network and transmitting the plurality of images to the terminal device. The apparatus includes an image memory for storing the plurality of images; a first transmission unit for transmitting the plurality of images to the terminal device, an area determination unit for determining an area in which change between frames of the plurality of images exceeds a threshold value, a second transmission unit for compressing the determined area at a frame rate higher than that of the first transmission unit and transmitting the area to the terminal device, and a management unit for managing synchronization between an image transmitted by the first transmission unit and an image transmitted by the second transmission unit, generating drawing timing of each image.

Abstract: A data output apparatus accumulates received sound data in an accumulating unit (jitter buffer), and reproduces sound based on the accumulated sound data. Then, for a predetermined period of time from the time point at which reception of data starts, the data output apparatus restricts or prohibits discarding of data based on an upper accumulation limit amount as a basis for discarding the accumulated data. Moreover, prior to starting reception of sound data after a transfer of a transmission right, dummy data such as soundless data is accumulated in the accumulating unit. Further, the set values of the upper accumulation limit amount, etc. optimized in the previous communication are stored, and the settings stored in association with a transmitting source apparatus are set as the upper accumulation limit amount, etc. after the transfer of the transmission right.

Abstract: PoC server has an audio data receiving section 305 that receives the audio data transmitted from a cellular phone, an audio data transmitting section that transfers the audio data to individual cellular phones other than the speaker's one, of two or more cellular phones, a receiving user storage section that stores therein receiving association data indicative of the association between the cellular phone having the speaker right and the cellular phones of the receiving users, and a receiving user grasp section that causes the audio data transmitting section to transfer the audio data with designation of the cellular phone of the receiver.

Abstract: A method transmitting and receiving data other than voice data and preventing deterioration in quality of communication voice data due to transmission and reception of the other than voice data, and utilizing a limited communication bandwidth when a plurality of users conduct the broadcast communication through common use of the conference room on the network. Upon a user terminal transmitting second data, verifying whether any of a plurality of identified user terminals has a right of transmission of first data. The method further includes that upon a user terminal having the a transmission right of first data, setting a value obtained by subtracting the communication bandwidth required for transmission of the first data from the communication bandwidth which each user terminal can use as the communication bandwidth for transmission of the second data.

Abstract: A server judges whether a withdrawn terminal is included in a first communication group, wherein the withdrawn terminal is a terminal which is provided with sending permission in a second communication group and not provided with sending permission in the first communication group. The server sends a notice of withdrawal of the withdrawn terminal from the second communication group, when judged that the withdrawn terminal is included in the first communication group.

Abstract: The input unit stores data input by the user in the data storage. The status determiner determines reception status of the screen data to be one of three statuses of “abnormal”, “normal”, and “recovery” from “abnormal” to “normal” on the basis of frame losses. In a case of the “abnormal” status, a transmission controller does not read the input data stored in the data storage. In a case of the “normal” status, the transmission controller reads the input data stored in the data storage, transmits the input data via the transmitter, and deletes the input data stored in the data storage. In a case of the “recovery” status, the transmission confirmer instructs the output unit to output the input data stored in the data storage to ask the user whether to transmit the input data to the server.

Abstract: A call control device, which controls call connections between a plurality of terminals, includes a device information storage unit that stores device information on call-connectable terminals; a call request accepting unit that accepts a call request from one terminal to another terminal; a determining unit that determines, when the call request accepting unit accepts a call request, whether the device information on the other terminal is stored in the device information storage unit; a holding unit that holds a call state of the one terminal when the determining unit determines that device information on the other terminal is not stored in the device information storage unit; a state acquiring unit that acquires state information indicating a state of the other terminal; and a holding tone setting unit that sets a holding tone to be transmitted to the one terminal associated with the state information acquired by the state acquiring unit.

Abstract: A data output apparatus checks data accumulated state in the accumulating unit at a preset check interval, and changes at least one setting among an initial accumulation amount to be used as a basis for starting to output the data accumulated in the accumulating unit, an upper accumulation limit amount to be used as a basis for discarding accumulated data, and a check interval, according to a discarded state of the data based on check results. Therefore, in the data output apparatus such as an IP telephony terminal apparatus, it is possible to prevent sound interruption and limit a lowering of communication quality.

Abstract: A communicating system includes: a plurality of communicating system terminal including a communication unit that transmits and receives audio or video data and a reproducing unit that reproduces the data received by the communication unit; and a server including an administering unit that administers the plurality of communicating terminals as a communication group, an approving unit that approves the transmission of the data by one of the communicating terminals of the communication group, a receiving unit that receives the data transmitted by the one of the communicating terminals, and a transmitting unit that transmits the data received by the receiving unit to the other communicating terminals of the communication group.

Abstract: A data output apparatus judges whether or not sound data that has not yet been outputted has been accumulated. When a judgment is made that there is no accumulation of sound data that has not yet been outputted, the data output apparatus reads already-outputted sound data that was outputted previously and saved, and reproduces (outputs) sound based on the read sound data. Since it is possible to reduce occurrence of abnormality such as sound interruption in the data output apparatus such as an IP telephony terminal apparatus, a lowering of communication quality such as voice quality can be prevented.

Abstract: A connection apparatus is employed which is connected to a repeating apparatus for providing the PoC for first communication apparatuses having a PoC function. Call connection is established between the connection apparatus and second communication apparatus not having the PoC function. In the connection apparatus, recorded is apparatus information for identifying each second communication apparatus. The connection apparatus has the function of acting as a proxy of the second communication apparatus identified by the apparatus information. This function consists of the function of performing half duplex communication with the repeating apparatus; the function of transmitting output data received from the second communication apparatus, to the repeating apparatus when the second communication apparatus has acquired transmission right; and the function of transmitting received output data to the second communication apparatus when the output data is received from the repeating apparatus.

Abstract: An information processing apparatus and method includes generating an image to be displayed by a display section, determining, based on a processing capacity of a terminal connected with the information processing apparatus via a communications network or the information processing apparatus itself, a size of an image to be transmitted to the terminal, dividing an image displayed on a screen into a plurality of segments based on the size determined, adding positional information indicating an on-screen position of a segment divided to segment image information based on an image of a segment; and transmitting the segment image information added with the positional information to the terminal via the communications network.

Abstract: A method transmitting and receiving data other than voice data and preventing deterioration in quality of communication voice data due to transmission and reception of the other than voice data, and utilizing a limited communication bandwidth when a plurality of users conduct the broadcast communication through common use of the conference room on the network. Upon a user terminal transmitting second data, verifying whether any of a plurality of identified user terminals has a right of transmission of first data. The method further includes that upon a user terminal having the a transmission right of first data, setting a value obtained by subtracting the communication bandwidth required for transmission of the first data from the communication bandwidth which each user terminal can use as the communication bandwidth for transmission of the second data.