Abstract: A communication apparatus includes: a display state detecting unit that detects a display state of an image to be displayed on the basis of a received moving image data; and a control information transmitting unit that transmits, to a transmission source of the moving image data, control information regarding transmission of the image data, in accordance with the display state.

Abstract: An image-sharing server of an image-sharing system acquires candidate storage data including an update image currently displayed on an image-providing terminal. When, for instance, a predetermined reception band of a second image-receiving terminal is narrower than an optimum transmission band of the image-providing terminal, the image-sharing server specifies the last update data in an order for the update data to be stored in a second transmission buffer as comparison data. Further, when determining that an update region of the comparison data is included in an update region of the candidate storage data, the image-sharing server deletes the comparison data and stores the candidate storage data in the second transmission buffer. Subsequently, the image-sharing server transmits the update data of the second transmission buffer to a second receiving terminal in the order for the update data to be stored to update the image currently displayed on the second image-receiving terminal to update data.

Abstract: A bandwidth used in communication processing to transmit and receive different types of information via a communication line is monitored. A priority definition file previously defining the processing priority of information corresponding to a combination of the different types of information transmitted and received is provided. When the monitor result of monitoring the bandwidth indicates that the amount of information being transmitted/received is a given value or more, the priority definition file is referenced, the appropriate bandwidth for the information being transmitted/received is set in accordance with the processing priority, and the bandwidth of the information being transmitted/received is controlled based on the setup appropriate bandwidth.

Abstract: In a network conference system, a promoter terminal 10 has: a speaker selecting section 12 which selects the promoter terminal 10 itself or one of participant terminals 20 and 30, as a speaker terminal which is used by a speaker who makes an announcement in a conference; and a usage function controlling section 13 which, in accordance with a result of the selection by the speaker selecting section 12, controls the speaker terminal and the terminal other than the speaker terminal so that a predetermined application is available only in the speaker terminal. Further, method for using the network conference system is provided.

Abstract: In an image display system, the control device (110) of a host computer (100) performs an image displacement process in accordance with a program stored in a USB memory (120). By the image displacement process, a pointer (300), which is an image, is displaced between the main display (140) of the host computer (100) and the sub display (220) of a display apparatus (200). Moreover, the sub display (220) is authenticated on the basis of authentication information (122) stored in the USB memory (120) in advance, and is clarified at the stage that the USB memory (120) is attached. Moreover, in the displacement of the pointer (300), if the pointer (300) is deviated from the screen with regard to the operation for displacing in any direction on the main display or sub display, the pointer (300) is displaced from one display to the other display, and the displacement direction is maintained.

Abstract: A communication apparatus includes: a display state detecting unit that detects a display state of an image to be displayed on the basis of a received moving image data; and a control information transmitting unit that transmits, to a transmission source of the moving image data, control information regarding transmission of the image data, in accordance with the display state.

Abstract: In a network conference system, a promoter terminal 10 has: a speaker selecting section 12 which selects the promoter terminal 10 itself or one of participant terminals 20 and 30, as a speaker terminal which is used by a speaker who makes an announcement in a conference; and a usage function controlling section 13 which, in accordance with a result of the selection by the speaker selecting section 12, controls the speaker terminal and the terminal other than the speaker terminal so that a predetermined application is available only in the speaker terminal. Further, method for using the network conference system is provided.

Abstract: A bandwidth used in communication processing means to transmit and receive different types of information via a communication line is monitored. A priority definition file 13 previously defining the processing priority of information corresponding to a combination of the different types of information transmitted and received is provided. When the monitor result of monitoring the bandwidth indicates that the amount of information being transmitted/received is a given value or more, the priority definition file is referenced, the appropriate bandwidth for the information being transmitted/received is set in accordance with the processing priority, and the bandwidth of the information being transmitted/received is controlled based on the setup appropriate bandwidth.

Abstract: In an automatic scanning tuner which stops at tuned stations in scanning up and down a range of frequencies, apparatus is provided for ignoring stations at which a user does not wish the tuner to stop as it moves up or down the dial. Information regarding the stations to be ignored may be stored in advance in a memory, such as a RAM.