| 摘要 |
<p>PURPOSE:To automatically make a corresponding source to be in a play state in the case where the power supply of the source being in a playing is instantaneously interrupted and restored and further to automatically stop the source being in the playing and also to make the holding content of a management unit coincide with the content of a system in the case where the power supply of the management unit is instantaneously interrupted and restored. CONSTITUTION:In the case where the power supply of a prescribed source 31 is restored after an instantaneous interruption, a start-up information is transmitted from the corresponding source to a management unit 21 and then the management unit judges whether a source transmitting the start-up information is the source being in the playing or not, and makes the corresponding source to be in the play state when the source is the source being in the playing. Further, in the case where the power supply of the management unit 21 is restored after an instantaneous interruption, the unit transmits the start-up information toward all sources and each source receiving the start-up information from the management unit initializes its state.</p> |
