APPLICATION ENGINE, INFORMATION COMMUNICATION TERMINAL DEVICE IMPLEMENTING APPLICATION ENGINE, SUBTITLE DISPLAY CONTROL METHOD, AND COMPUTER PROGRAM FOR EXECUTING THE METHOD

To correctly display and control ARIB standard subtitle data under a WebVTT standard.SOLUTION: An application engine according to the present invention includes a subtitle data conversion unit that converts subtitle data according to a received first standard into subtitle data according to a second standard, and a renderer that performs rendering processing such that subtitles are displayed on a user interface on the basis of the converted subtitle data according to the second standard. After the subtitle data conversion unit has received first subtitle data according to the first standard, the subtitle data conversion unit determines whether the second subtitle data according to the first standard has been received within a predetermined time, and the subtitle data conversion unit sets the display end time of the first subtitle data according to the second standard at the display start time specified by the second subtitle data according to the first standard when it is determined whether the second subtitle data stream according to the first standard has been received within the predetermined time.SELECTED DRAWING: Figure 4 【課題】 ＡＲＩＢ規格の字幕データをＷｅｂＶＴＴ規格の下で正しく表示制御する。【解決手段】 本発明は、受信した第１の規格に従う字幕データを第２の規格に従う字幕データに変換する字幕データ変換部と、変換された前記第２の規格に従う字幕データに基づいて、前記ユーザインターフェース上に字幕が表示されるようにレンダリング処理を行うレンダラーとを含むアプリケーションエンジンである。前記字幕データ変換部は、前記第１の規格に従う第１の字幕データを受信した後、所定の時間内に前記第１の規格に従う第２の字幕データを受信したか否かを判断し、前記第１の規格に従う前記第２の字幕データストリームを前記所定の時間内に受信したと判断する場合に、前記第２の規格に従う前記第１の字幕データの表示終了時刻を、前記第１の規格に従う前記第２の字幕データが指定する表示開始時刻で設定する。【選択図】 図４