| 摘要 |
PURPOSE:To avoid excessive interruption to surroundings, by outputting the call out tone with quiet melody or chime tone. CONSTITUTION:When the clock 106 is set from 18:00 to 8:00 next morning, since the switch 105 passes the call out signal to the trigger within the time, the output of the trigger 101 is inputted to the electronic tone producing section 102, producing melody or chime tone. This is converted into audio with the speaker 103, generating the call out tone. On the other hand, from 8:00 in the morning to 18:00, since the call out signal is connected to the bell 104 with the switch 105, the call out tone by bell is produced. |
