| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a system in which both a wired headphone and a wireless headphone are available and a transmission circuit particularly dedicated to the wireless headphone is not required in an audio apparatus including a surround function. <P>SOLUTION: When a headphone is not used, audio is reproduced by a pair of left and right front speakers 13, 14 and a pair of left and right rear surround speakers 15, 16. When a jack 43 of the wired headphone is inserted, signals to be supplied to the left and right front speakers 13, 14 are supplied to the headphone and driving of the four speakers 13-16 is stopped. When using the wireless headphone, audio signals to be supplied to the front side speakers are supplied to a wireless headphone 26 by a transmission circuit 57 and further, driving of the four speakers 13-16 is stopped. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
