| 摘要 |
PURPOSE:To set a terminal in an emergency state by an emergency signal from a receiver receiving the emergency signal, to stop the opertion of the terminal, to automatically restore the terminal when the emergency state is released afterwards, to dispense with a complicated restoration operation for a system, and to prevent reservation information stored in the terminal, etc., from being erased. CONSTITUTION:A reception terminal 13 receives the emergency signal from a sensor, and outputs emergency information corresponding to the signal, and outputs release information when the emergency state is released. When the emergency information from the reception terminal 13 is received while a KARAOKE(orchestration without lyrics) terminal 15 performs a prescribed operation based on every kind of inputted information, the operation is stopped transiently, and also, the emergency information is outputted, and after that, the terminal is automatically restored when receiving the release information of emergency state. |
