CONTENT PROTECTION SYSTEM, MOBILE TERMINAL, AND WIRELESS APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide an on-board content protection system in which a playback function can be validated only on board and the playback function can be immediately and automatically stopped when illegally taking out a mobile terminal by detecting radio waves sent out on board when playing back contents such as a movie provided on an aircraft by means of the mobile terminal dedicated to on-board use.

SOLUTION: The content protection system to be used in a mobile body is provided with at least one mobile terminal 120 having a radio receiving function for playing back contents and a wireless apparatus 110 for sending out a radio signal to the mobile terminal 120. In the system, the wireless apparatus 110 transmits a data packet including specific information to the mobile terminal 120 by broadcasting, and the mobile terminal 120 receives the data packet and can play back the contents only in a period when the specific information included in the data packet is continuously received.

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