MULTIPLE SIGNAL PROCESSING UNIT FOR UTILITY WIRING BY RECEIVER/LAN AND UTILITY WIRING SYSTEM BY RECEIVER/LAN

摘要

PURPOSE: A unit for processing multiple signal transmitted by receiver/LAN is provided for transmitting the signal through a single cable without interferrence between LAN signal and receiver signal. CONSTITUTION: A unit which processes multiple signals transmitted through utility wiring by receiver/LAN has a utility wiring connecting terminal (10) connected to the utility wiring by receiver/LAN, at least one input-output terminal for connecting computer (11) connected to the terminal (10), and at least one input-output terminal for connecting receiver (12) connected to the terminal (10). First signal interference preventing circuits (13 and 19) are respectively connected between the terminal (10) and the input-output terminal (12) so as to check the reverse flow of LAN signals. Therefore, signals for a television receiver, etc., and LAN signals can be transmitted through a coaxial cable for television, etc., wired in an already existing building without causing interference between the signals.