Abstract: A data management apparatus includes circuitry to transmit first data stored in a memory in association with first identification information via a network to an information processing apparatus that executes predetermined processing on data, receive, from the information processing apparatus, second identification information added to the first data by the information processing apparatus, store the first identification information and the second identification information in the memory in association with each other, in response to completion of the predetermined processing on the first data, receive second data obtained by the information processing apparatus executing the predetermined processing on the first data and the second identification information from the information processing apparatus, and store, in the memory, the second data received from the information processing apparatus in association with the first identification information stored in association with the second identification informat

Abstract: An information processing apparatus includes circuitry to receive electronic data from a terminal; request, via a network, another information processing apparatus to perform processing on the electronic data; and transmit, to the another information processing apparatus, a request of change to the requested processing based on an input received from the terminal. The circuitry executes processing related to the electronic data in accordance with a response from the another information processing apparatus to the request of change.

Abstract: An information processing system, an information processing method, and a non-transitory recording medium. An information processing system displays an image transmitted from one of the information processing terminals on displays of other information processing terminals, stores information input by users of the information processing terminals with respect to the image displayed on each information processing terminal, calculates degree of interest in a specific image identified by specific identification information for each user, by comparing an aggregated value of the input information related to the specific image for each user with the aggregated value for each user related to another image or a plurality of other images identified respectively by other identification information, and causes the information processing terminal that transmitted the specific image to display on a display, information indicating the degree of interest of each user.

Abstract: An information processing apparatus includes processing circuitry; and a memory storing computer-executable instructions that cause the processing circuitry to create data for displaying a web page in a web browser on a display device of at least one communication terminal among a plurality of communication terminals; and transmit the created data to the at least one communication terminal. The web page includes a first area for displaying a shared screen to be shared among the plurality of communication terminals; and a second area including at least an image of the shared screen displayed in response to an acquisition request, which is accepted at the at least one communication terminal, to acquire the image of the shared screen, and an editable area.

Abstract: An information processing apparatus includes processing circuitry; and a memory storing computer-executable instructions that cause the processing circuitry to create data for displaying a web page in a web browser on a display device of at least one communication terminal among a plurality of communication terminals; and transmit the created data to the at least one communication terminal. The web page includes a first area for displaying a shared screen to be shared among the plurality of communication terminals; and a second area including at least an image of the shared screen displayed in response to an acquisition request, which is accepted at the at least one communication terminal, to acquire the image of the shared screen, and an editable area.

Abstract: An information processing system includes one or more information processing apparatuses each being configured to control a plurality of communication terminals to perform screen sharing by using web browsers installed in the plurality of communication terminals. The one or more information processing apparatuses each includes circuitry configured to receive a selection of a file to be screen-shared from one of the plurality of communication terminal, and display a history of the file that is screen-shared on a shared web page, the shared web page being a web page editable from the web browsers of the plurality of communication terminals.

Abstract: A communication network of the present invention includes: a plurality of superordinate nodes 110 to 1m0 forming a cascade type topology; and a plurality of terminal nodes 111 to 11n, connected to at least one superordinate node from among said plurality of superordinate nodes and forming a star type topology with the superordinate node connected.

Abstract: A communication network of the present invention includes: a plurality of superordinate nodes 110 to 1m0 forming a cascade type topology; and a plurality of terminal nodes 111 to 11n, connected to at least one superordinate node from among said plurality of superordinate nodes and forming a star type topology with the superordinate node connected.

Abstract: It is possible to prevent degradation of power consumption efficiency or lowering of a communication rate in a radio communication. Each node 50 determines a transmission power for data communication so that the number of searched nodes reaches a target value and stores the node address of the searched node by the transmission power in an adjacent node address storage unit 25. Moreover, the transmission power for control communication is determined in the same way. When the node 50 transmits a data frame to another node, an ERTS frame including the node address stored in the adjacent node address storage unit 25 is transmitted by the transmission power for the control communication. After an ECTS frame is received, the data frame is transmitted by the transmission power for the data communication. A control information input/output unit 24 identifies the node in an NAV period from the received ERTS frame or the like and stores the node address of the node in an NAV setting node address storage unit 26.

Abstract: [Problems] When two communication nodes communicate with each other they more reliably confirm that the communication party is a correct one. [Means for Solving Problems] Computation is performed on the basis of a first communication identifier created by a second communication node and contained in a first authentication message replied to the first communication node in response to a connection request message transmitted from the first to the second communication node, authenticator data held in the first communication node, and a second communication identifier created by the first communication node so as to create a message different from the other messages each time, creatable easily from the authenticator data, identifiable as a message created in response to the first authentication message, and not easy to derive or deduce authenticator data from this message. The second authentication message is checked.

Abstract: An RSA signature method is provided in which the length of a signature does not depend on the number of signature devices when multiple signature devices are related to the creation of the signature. A signature device i_{m} includes first conversion means SS1B105 that performs no operation if a received signed text u_{i_{m?1}} exceeds a modulus n_{i_{m}} and, if not, adds an RSA-method-based signature; bijective conversion means S1B106 that multiplies the result by a function that maps the result to a value larger by the modulus n_{i_{m}}; second conversion means S1B107 that performs no operation if the operation result exceeds the modulus n_{i_{m}} and, if not, adds an RSA-method-based signature; and output means S1B109 that outputs the operation result as the signed text u_{i_{m}}.

Abstract: A server (1) generates delivery data obtained by adding distribution control information which designates the possibility/impossibility of data transfer, the necessity/unnecessity of encryption, the possibility/impossibility of server inquiry, and the like to contents data such as digital contents, an electronic ticket, or the like and delivers the delivery data to a mobile information terminal (2). The delivery data is stored in the mobile information terminal (2), and freely used by a service user. Although the delivery data can be backed up in another user information terminal, restoration and transfer of the delivery data are restricted according to the added distribution control information.

Abstract: A scenario editing device comprises a scenario supplementing unit supplements a scenario memorized in a scenario memory according to a scenario basic rule memorized in a scenario rule memory when it receives additional data set from a receiving unit. The scenario supplementing unit includes a material represented by the additional data set with multimedia contents to make the multimedia contents approach a complete state. To receive the additional data set at the receiving unit, the scenario editing device exhibits the multimedia contents with a incomplete state on a computer network.

Abstract: A scenario edit device creates node icons representative of the presentation screens described in the scenario, data icons associated with and disposed within their respective node icons, and link graphic indicating links between the presentation screens. The node icons, the data icons, and the link graphic are displayed as an edit image. The links between the presentation screens that are described in the scenario are visually edited using the edit image.

Abstract: A scenario editing apparatus for editing of multimedia including an input manager 104 for managing a user's input and selecting specific multimedia data to indicate the presentation position of the selected multimedia data, an electronic image input unit 109 for inputting an electronic image, a position coordinate analyzer 108 for analyzing the electronic image from the electronic image input unit 109 and extracting figure feature points of the electronic image to obtain position coordinates of the figure feature points, a presentation position memory 101 for storing the position coordinates of the figure feature points of the electronic image as the presentation position coordinates of the multimedia data selected by the input manager 104, and screen output unit 107 for displaying on a display screen the figure feature points of the electronic image and the multimedia data for which the presentation position is edited, thereby performing an interactive editing.

Abstract: A scenario editing apparatus by which presentation positions, presentation times and presentation effects of a plurality of multi-media data scenarios can be collectively designated and edited.