Patent ID: 6618447
Filing Date: 2003-09-09
Classification: H03H,H04N

Abstract:
A utility wiring system by receiver/LAN comprising:a utility wiring by receiver/LAN; at least one booster (40) located in said utility wiring, for amplifying a signal received by the receiver; a bypass circuit (41) connected in parallel to said booster (40); a LAN signal pass circuit disposed in said bypass circuit (41), for passing LAN signal therethrough but cutting off the signal which is within a frequency range outside the frequency range of the LAN signal; and a plurality of units (30) connected to said utility wiring, for processing multiple signals transmitted through said utility wiring, wherein each of said plurality of units (30) further comprises: a pair of utility wiring connecting terminals (10) connected with each other for connecting to said utility wiring; at least one input-output terminal (11) for connecting a computer, said input-output terminal (11) being connected to said utility wiring connected to said utility wiring connecting terminals (10); at least one input-output terminal (12) for connecting the receiver, said input-output terminal (12) being connected to said utility wiring connecting terminals (10); and a first signal interference preventing circuit for preventing a reverse flow of the LAN signal, said circuit being connected between said utility wiring connecting terminals (10) and said each input-output terminal 12 for connecting the receiver.