| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a terminal device for turning off its own power source according to a condition of a power source of a monitor connected thereto. <P>SOLUTION: In the terminal device 100 driven by an electric power supplied from a power source 19 and converting at least a sound Da of contents Wb, Db inputted into a broadcast sound signal Sa and then outputting the signal to a speaker, a microphone 15 converts a surround sound including a broadcast sound S(Sa) outputted from the speaker into a surround sound signal Sac, and an electric power control section 18 turns off the power supply 19 when it is determined that the surround sound signal Sac does not include the broadcast sound signal Sa. <P>COPYRIGHT: (C)2009,JPO&INPIT |
