Abstract: An information processing apparatus includes an image memory and a processor. The image memory is configured to hold an image of a displayable area larger than an area of an image displayed in a display unit of a terminal device. The processor is configured to transmit the image of the displayable area to the terminal device and divide the displayable area into a plurality of divided areas. The processor is configured to determine a change frequency less frequently for a non-displayed divided area than for a displayed divided area. The processor is configured to compress an image of a displayable area other than a frequently changed area with a first compression ratio. The processor is configured to compress an image of the frequently changed area with a second compression ratio higher than the first compression ratio. The processor is configured to transmit the compressed image to the terminal device.

Abstract: Imaging lens comprises, in order from the object side, a first lens block having a convex and concave surfaces oriented toward the object and image side respectively, and having a positive power, and a second lens. An aperture stop can be located on the object side of the first lens block, a peripheral portion of the image side surface of the second lens has a positive power where: 0.62<fla/f<0.82 (1) ?4.00<flb/f<?1.11 (2) 0.70<D4/f<1.00 (3) with, fla: focal distance of object side lens portion of the first lens block; flb: focal distance of an image side lens portion of the first lens block; D4: distance on the optical axis from the object side surface of the first lens block to the image side surface of the second lens; f: focal distance of the imaging lens total system.

Abstract: An information processing apparatus includes an image generation unit that generates an image to be displayed at a terminal; a moved area detecting unit that detects a moved area in the image; a determining unit that determines whether the moved area includes a changed partial area that is different before and after the movement; an identifying unit that identifies the changed partial area as a frequently-changed area when the changed partial area is changed within a predetermined period of time for a number of times greater than or equal to a threshold; a first transmission unit that transmits image data of the changed partial area not identified as the frequently-changed area to the terminal; a second transmission unit that transmits video data of the frequently-changed area to the terminal; and a third transmission unit that transmits movement and size information of the moved area to the terminal.

Abstract: A server apparatus renders a process result of software on an image memory that stores a display image to be displayed on a client terminal, detects an update area in which an update occurs between frames of an image. The server apparatus selectively switches and performs a first generation process and a second generation process according to the number of detected update areas. The first generation process is a process that generates a color map for each update area based on colors used in the update area. The second generation process is a process that generates a color map commonly used between the update areas based on colors used in images of the update areas. The server apparatus reduces the number of colors in an update area using the generated color map and transmits a compressed image of the update area to the client terminal.

Abstract: Communication equipment, arranged between a terminal device and a server, includes: a detector configured to detect transmitted data that is transmitted to the terminal device and non-transmitted data that is not transmitted to the terminal device, from service data transmitted from the server to the terminal device through the communication equipment; a first calculator configured to calculate a first cost of transmitting the non-transmitted data to the terminal device; a second calculator configured to calculate a second cost of transmitting, to the terminal device, a difference image between an image corresponding to the service data and an image corresponding to the transmitted data; and a transmission scheme decision unit configured to transmit the non-transmitted data to the terminal device when the second cost is greater than the first cost and transmit the difference image to the terminal device when the second cost is smaller than the first cost.

Abstract: A session managing method executed by a session managing device, the session managing method includes: establishing a session with a communicating device in response to a first request from the communicating device; extending a duration limit of the session by a first time interval according to an actual result of communication between the communicating device and the session managing device; and extending the duration limit of the session by a second time interval longer than the first time interval when receiving, from the communicating device, a notification indicating that a telephone call with another communicating device is started.

Abstract: A drawing system includes an information processing apparatus which includes a generation unit for generating video data for a frequently changed region whose change frequency in an image exceeds a predetermined threshold, and generate still image data for the video data, and a first communication unit for transmitting the video and still image data to a terminal apparatus; and the terminal apparatus which includes a second communication unit for receiving the video and still image data from the information processing apparatus, a decoder unit for decoding the video and still image data, and a drawing unit for drawing a the decoded still image data when decoding of the video data is not completed by drawing timing, and to switch the drawing of the decoded still image data to drawing of a decoded video data when the decoding of the video data catches up with the drawing timing.

Abstract: An information processing method executed by a processor included in an information processing apparatus that includes a display device that displays an image and a speaker, the information processing method includes determining, when update of an image displayed on the display device is detected while the information processing apparatus is in a state of voice call, notification sound corresponding to a substance of the update; and outputting the notification sound from the speaker.

Abstract: A control method of an information processing apparatus includes receiving image information and a first index associated with the image information transmitted from another information processing apparatus, the first index regarding a time when the other information processing apparatus transmits the image information, calculating a communication index regarding bandwidth of a network between the information processing apparatus and the other information processing apparatus on a basis of the first index, a second index, and size of the image information, the second index regarding a time when the information processing apparatus receives the image information, and transmitting the communication index to the other information processing apparatus.

Abstract: A system includes: an information processing device and a terminal device including a first processor configured to: receive image data including a plurality of first image data that are to be displayed in accordance with a first operation input to the terminal device, store the image data into the first memory, generate, on the basis of a first operation locus corresponding to the first operation and a second operation locus corresponding to a second operation input to the terminal device after the first operation, moving image data that is to be played back in accordance with the second operation, the moving image data including at least a portion of the image data stored in the first memory and corresponding to respective points of the first operation locus, and display the moving image data in the display device.

Abstract: An information processing device includes a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute: transmitting a created image to a client terminal; acquiring at least one image created at timing different from image transmission timing by the transmitting; and calculating a change frequency, based on the transmitted image by the transmitting and the image acquired by the acquiring, for each of multiple divided areas constituting an image.

Abstract: The server device draws a processing result from software in an image memory, detects an update area containing an update between frames in the image, performs still image compression, and calculates the compression ratio of still image compressed data in the update area. The server device identifies a high-frequency change area, performs moving image compression, and calculates the compression ratio of moving image compressed data. The server device transmits the still image compressed data and the moving image compressed data. The server device stops the moving image compression based on the result of comparing the compression ratio of the moving image compressed data and a compression ratio of still image compressed data in a previous update area is the update area in a previous frame detected before the start of the moving image compression and has been detected at a position associated with the high-frequency change area.

Abstract: A processor is configured to extract a region that is updated as a moving image as a moving image update region from a screen stored in a memory that holds a screen on which an image of execution results of a computer is drawn. The processor is configured to determine a division state of the moving image update region from information including a network bandwidth, a threshold value of the transmission time set in advance, an average compression ratio of a frame encoded without using the inter-frame prediction, and an average compression ratio of a frame encoded by using the inter-frame prediction. The processor is configured to divide the update region that has been determined to be the moving image region in the determined division state. And the processor is configured to transmit the divided update region to the terminal device.

Abstract: A computer receives, from a target device via a communication apparatus that is capable of accessing the target device, an issuance request for issuing key information unique to the target device. The computer generates the key information upon reception of the issuance request. The computer stores an address allocated to the communication apparatus and the key information in association with each other. The computer transmits the key information to the target device via the communication apparatus. The computer receives, from the communication apparatus, the key information and a registration request for registering a relay apparatus for relaying communication between the computer and the target device. The computer registers the communication apparatus as the relay apparatus when the address allocated to the communication apparatus and the address stored in association with the received key information match each other.

Abstract: A system includes an information processing apparatus and a terminal apparatus connected via a network. The information processing apparatus includes a processor that calculates based on image data of an image to be displayed on a display screen of the terminal apparatus and a compression rate of the image data, a data transfer volume to be transmitted to the terminal apparatus, and determines based on the calculated data transfer volume and a data transfer rate with the terminal apparatus, a segmentation unit by which the image is segmented.

Abstract: A screen data transfer device that includes a processor that executes a procedure. The procedure includes: (a) receiving screen data having a changed portion compressed by first compression processing, and detecting a high region where a changed frequency in the screen is a threshold value or greater; (b) detecting a processing load of the device itself; and (c) when the detected load is a threshold value or greater, and in cases in which the changed portion overlaps with the high region, assigning a route of the screen data to a first route in which second compression processing with a higher compression ratio than the first compression processing is executed by a compression section, and in cases in which the changed portion does not overlap with the high region, assigning the route to a second route in which the screen data bypasses the compression section.

Abstract: An information processing apparatus includes rendering a software processing result to an image memory that stores a image to be displayed on a terminal apparatus connected through a network, and includes detecting an update field in which the image is updated, when the rendering with respect to the image memory is performed, and includes first compressing the image of the update field to obtain first compression data, and includes dividing the first compression data into a data size within a window size of a connection established with the terminal apparatus to obtain division data, and includes second compressing the image of the update field to the data size within the window size of the connection to obtain second compression data, and includes assigning each division data to any connection of multiple connections and assigning the second compression data to a dedicated connection different from the multiple connections.

Abstract: A terminal device includes: a memory; and a processor coupled to the memory. The processor executes a process including: receiving a screen image from a server device connected via a network; storing the screen image received; displaying the screen image stored in a storage; first computing a switching end time based on an amount of one screenful of screen image data that is determined from a screen size of a display and an available band for communications with the server device; second computing a switching start time based on a switching time of the screen image obtained from the screen size and a switching speed of the screen image, and the switching end time; and reading the screen image from the storage and displaying the screen image on the display at the switching speed after the switching start time has elapsed from reception of a user's switching operation.

Abstract: An information processing device includes a memory; and a processor coupled to the memory, wherein the processor executes a process comprising: drawing an image representing a processing result based on software into an image memory; identifying a high-frequency change area; animating an image of the high-frequency change area; adding time information to an image of a change area having a change or the image of the high-frequency change area animated, and transmits the image to a terminal device; receiving the time information from the terminal device; determining based on a difference between the received time information and a reception time of the time information whether image drawing delay occurs; and starting an animation of the change area when the image drawing delay occurs and the animation is not being executed or changes an image transmission interval when the image drawing delay occurs and the animation is being executed.

Abstract: An information processing apparatus includes: an image memory that stores therein an image that is to be displayed on a terminal device; a drawing unit that draws a processing result from software into the image memory; a detecting unit that detects an update area containing an update between frames in the image; a splitting unit that splits, the image in the update area; a creating unit that creates, wait insertion data by inserting a wait between each of the pieces of the split data; a changing unit that changes the wait; an acquiring unit that acquires, the available bandwidth and a display update speed that indicates display intervals of the wait insertion data for each wait; and a selecting unit that selects, when a wait in which the available bandwidth is increased and the display update speed is improved, the wait.