Subscriber interfacing device in communication-broadcasting...

Details Subscriber interfacing device in communication-broadcasting... Subscriber interfacing device in communication-broadcasting...

2007-07-03

2007-07-03

Li, Shi K. (Department: 2613)

Optical communications

Multiplex

Broadcast and distribution system

C398S067000

Reexamination Certificate

active

10776726

ABSTRACT:
A subscriber interface device and method for transmitting a communication signal and a broadcasting signal to each subscriber in a communication-broadcasting convergence FTTH system. A subscriber interface, positioned in the ONU, modulates a first predetermined number of broadcasting signals selected by a subscriber among broadcasting signals received from an OLT, combines a baseband communication signal received from the OLT with the modulated broadcasting signals, and optically transmits the combined communication-broadcasting signal. A subscriber interface receiver positioned in an ONT, splits the combined communication-broadcasting signal, filters the split signals to respective frequency bands, modulates the filtered broadcasting signals, transmits the modulated broadcasting signals to a monitor of the subscriber, and transmits the filtered communication signal as a baseband signal to a communication terminal of the subscriber instead of a passband signal.

REFERENCES:
patent: 5822102 (1998-10-01), Bodeep et al.
patent: 2003/0063847 (2003-04-01), BuAbbud
patent: 62-020179 (1987-01-01), None
patent: 2000-244393 (2000-09-01), None
patent: 2001-217783 (2001-08-01), None

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