How to launch an application

Abstract

To provide a digital broadcast receiver and a portable information terminal capable of performing functions with higher added value. [Solution] A broadcast receiving device is used, comprising: a broadcast receiving unit that receives broadcast waves of a digital broadcasting service; a separation unit that separates and outputs at least broadcast program information, electronic program guide information, and application-related information from the received broadcast waves; an application acquisition unit that acquires a predetermined application based on location information included in the application-related information; a memory unit that caches the acquired predetermined application; and a control unit, wherein the control unit sets an expiration date for caching the application in the memory unit based on the electronic program guide information and application-related information.

Claims

[Claim 1] In an application startup method for launching an application to access broadcast resources in a broadcast receiving device, A broadcast reception step in which a broadcast signal is received, An application acquisition step which involves acquiring application control information from the broadcast signal received in the broadcast reception step, and acquiring an application by referring to the application acquisition destination information contained in the acquired application control information, A cache step in which the application acquired in the application acquisition step is cached in memory, The application execution step includes executing the application cached in the memory during the aforementioned caching step, A launcher screen display step, in which a launcher screen provided by an application launcher on the broadcast receiving device is displayed on the broadcast receiving device, Communication steps for communicating with an external mobile device, A data broadcast screen display step in which the broadcast receiving device is put into a data broadcast screen display state based on the BML information contained in the received broadcast signal, Includes, The application for accessing the aforementioned broadcast resources is either a broadcast-managed application activated by application control information contained in the broadcast signal, or an off-broadcast managed application activated by something other than application control information contained in the broadcast signal. The aforementioned application execution step is: A first application startup step in which the broadcast-managed application is started based on the application control code included in the acquired application control information, A second application launch step in which the non-broadcast managed application is launched based on user operation via the displayed launcher screen, A third application startup step in which the non-broadcast managed application is started based on a startup request received in the communication step via the external mobile terminal, The method is one of the following: a fourth application startup step which starts the broadcast-managed application based on user operation in the data broadcast screen display state, The application control information includes an application profile indicating the functions of the broadcast receiver requested by the broadcast managed application. The first application startup step, when the application control information includes information indicating the automatic startup of the broadcast-managed application, checks whether the broadcast-managed application is executable based on the application profile included in the application control information, and if it is executable, retrieves and starts the broadcast-managed application. In the data broadcasting screen display step, if the broadcast receiving device confirms that it is capable of executing the broadcast-managed application, it is controlled to display an entry button for launching the broadcast-managed application. The confirmation that the broadcast receiving device is capable of executing the broadcast managed application in the data broadcast screen display step is performed based on the application profile included in the application control information. In the fourth application startup step, the broadcast-managed application is launched based on user operation on the entry button displayed in the data broadcast screen display state. How to launch the application.

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