| 摘要 |
<p>PURPOSE:To eliminate a need for changing wires as a lighting pattern is changed, and also enable either a complex lighting pattern or a wide lighting pattern to be selected by letting self-recognition be conducted in a plurality of decorative bulb devices connected by two wires, and thereby individually controlling electric power supply to a plurality of the decorative bulb devices. CONSTITUTION:A plurality of decorative bulb devices are connected to two covered wires 22. Each bulb device receives common signals fed through the wires 22 by a receiving circuit 42, and selects signals related to the bulb device itself out of the common signals. Let self-recognition be conducted, and the lighting of a plurality of bulbs 10 is then selected by an electric power feed circuit 60 via an extracting circuit 50 in response to the setting of a setting circuit 10. By this constitution, a need for changing wires as a lighting pattern is changed, is eliminated, and either a complex lighting pattern or a wide lighting pattern can thereby be selected.</p> |
