Abstract: An apparatus that communicates with a screen display apparatus: a generation unit configured to generate image data to be displayed on a screen; an identification unit configured to identify an overlapping area that overlaps with the image data for each of a plurality of divided areas into which the screen is divided, respectively; a division unit configured to divide respective partial image data belonging to the respective overlapping areas in a vertical direction or a horizontal direction of the screen; a data compression processor configured to compress respective divided image data belonging to the respective divided areas by using dictionary data obtained based on a predetermined amount of divided image data compressed in the past belonging to the respective divided areas; and a data transmission unit configured to transmit respective compressed image data belonging to the respective divided areas in an order defined according to a rule given in advance.

Abstract: According to one embodiment, a server device that performs communication with a client device includes an obtaining unit, a storing unit, a comparing unit, and a sending unit. The obtaining unit is configured to obtain, from each of a plurality of pieces of image data generated in a sequential manner, a modification image representing an image portion which has got modified as compared to corresponding previous piece of image data. The storing unit is configured to store therein a specific image representing an image portion that is not to be displayed on the client device. The comparing unit is configured to compare the modification image with the specific image. The sending unit is configured to send, to the client device, the modification image not containing the specific image and not to send, to the client device, image portion in the modification image that match with the specific image.

Abstract: According to an aspect of the present invention, there is provided with a screen transmission device, including: a first receiver configured to receive usage state information indicating usage states of a plurality of screen display devices by a user from each the screen display device; a second receiver configured to receive a message of requesting start-up of a window from the screen display device out of the screen display devices; a determiner configured to determine a screen display device on which the window is to be started up out of the plurality of screen display devices based on the usage states of each the screen display device; a screen data generator configured to generate screen data of the window; and a transmitter configured to transmit the screen data of the window to the screen display device determined by the determiner.

Abstract: There is provided with a method performed in an image transmission apparatus capable of executing first communication and second communication whose communication speed is lower than that of the first communication with a display apparatus, including: generating an image to be displayed on the display apparatus; detecting whether the first communication is executable or not; transmitting the generated image to the display apparatus via the first communication when the first communication is executable; transmitting a compressed image obtained by compressing the generated image to the display apparatus via the second communication when the first communication is not executable; and transmitting compression utilization information required to display the compressed image on the display apparatus to the display apparatus via at least one of the first communication and the second communication when the first communication is executable.

Abstract: An apparatus that communicates with a screen display apparatus: a generation unit configured to generate image data to be displayed on a screen; an identification unit configured to identify an overlapping area that overlaps with the image data for each of a plurality of divided areas into which the screen is divided, respectively; a division unit configured to divide respective partial image data belonging to the respective overlapping areas in a vertical direction or a horizontal direction of the screen; a data compression processor configured to compress respective divided image data belonging to the respective divided areas by using dictionary data obtained based on a predetermined amount of divided image data compressed in the past belonging to the respective divided areas; and a data transmission unit configured to transmit respective compressed image data belonging to the respective divided areas in an order defined according to a rule given in advance.

Abstract: An information transfer apparatus includes a first image holding unit configured to hold image information of a first region updated in a display screen, a data compressing unit configured to perform compression processing of the image information of the first region outputted from an image acquiring unit, a second image holding unit configured to hold the image information of the first region compressed by the data compressing unit, a region determining unit configured to determine a second region to be a transfer object of a compression error caused by the data compressing unit among the first region, based on output of the image acquiring unit, a data expanding unit configured to extract and expand image information of the second region of the image information held by the second image holding unit, an error calculating unit configured to generate error image information including a compression error based on the image information of the second region in the image information held by the first data holding

Abstract: A video data transmitting apparatus includes a memory to store management information indicating corresponding relation between identification information elements for identifying a plurality of stackable display devices and orders of the display devices, an image data generator to generate a plurality of image data streams having a sequence according to the sequence, and a image data transmitter to transmit the image data streams to the display devices with order relation among the image data streams matching with order relation among the display devices based on the management information.

Abstract: There is provided with a method performed in an image transmission apparatus capable of executing first communication and second communication whose communication speed is lower than that of the first communication with a display apparatus, including: generating an image to be displayed on the display apparatus; detecting whether the first communication is executable or not; transmitting the generated image to the display apparatus via the first communication when the first communication is executable; transmitting a compressed image obtained by compressing the generated image to the display apparatus via the second communication when the first communication is not executable; and transmitting compression utilization information required to display the compressed image on the display apparatus to the display apparatus via at least one of the first communication and the second communication when the first communication is executable.

Abstract: There is provided with a computing device including: a coupler configured to couple to a display device having a chargeable first battery and be able to be separated from the display device, wherein charging to the first battery and wired communication with the display device can be performed via the coupler at a time of being coupled to the display device; a detector configured to detect whether the coupler is coupled to the display device; a wireless communicator configured to communicate wirelessly with the display device when separated from the display device; a connector configured to be supplied with power from an external power supply; a chargeable second battery; a further detector configured to detect whether power is supplied to the connector; and a controller configured to control charging and discharging of the first and second battery based on whether the power is supplied when coupled to the display device.

Abstract: According to an aspect of the present invention, there is provided with a screen transmission device, including: a first receiver configured to receive usage state information indicating usage states of a plurality of screen display devices by a user from each the screen display device; a second receiver configured to receive a message of requesting start-up of a window from the screen display device out of the screen display devices; a determiner configured to determine a screen display device on which the window is to be started up out of the plurality of screen display devices based on the usage states of each the screen display device; a screen data generator configured to generate screen data of the window; and a transmitter configured to transmit the screen data of the window to the screen display device determined by the determiner.