| 摘要 |
PROBLEM TO BE SOLVED: To enable the display of a content not to be hindered even in a state that the connection of external equipment for displaying the content is not maintained.SOLUTION: A terminal device 10 acquires an equipment identifier MID and a use flag F from an accessory device 20 on detecting an earphone jack of the accessory device 20 connected to an earphone plug (S1, S2). Based on the use flag F, the terminal device 10 determines that the accessory device 20 is unused. When determining that the authentication of the device itself is successful, the terminal device 10 acquires from a CP server 30a the content data of a display content which is identified by the equipment identifier MID (S3-S7). The terminal device 10 then displays the display content on the basis of the acquired content data, to display the display content, even after the accessory device 20 is removed from the earphone jack (S8). |
