| 摘要 |
PURPOSE: A digital speaker control system using a power line is provided to control each speaker through a single transmission line using the power line. CONSTITUTION: A number of terminal units (120) are connected through a power line. If a signal transmitted from a broadcast server is a signal corresponding to its own unique identification information, the terminal units receive the signal. The terminal units output the received signal through a speaker. A sound source providing unit provides sound source to the broadcast server by being connected to the broadcast server. A user computer (200) controls the broadcast server by being connected to the broadcast server through network. [Reference numerals] (110) Broadcast server; (120) Terminal unit; (141,210) Microphone; (143) Audio player; (145) Broadcast receiver; (147) Fire receiver; (170) Network; (200) User computer |
