초록 ▼

An information distribution system is disclosed. The system is composed of hub distribution centers which are connected to a plurality of individual subscribers by fiber optic cable or bidirectional coaxial cable. The system is particularly suitable for CATV distribution but may also be adapted to p

An information distribution system is disclosed. The system is composed of hub distribution centers which are connected to a plurality of individual subscribers by fiber optic cable or bidirectional coaxial cable. The system is particularly suitable for CATV distribution but may also be adapted to provide telephone, mail, radio and other services to the subscribers through the same cable connection with the hub distribution center.

대표청구항 ▼

An information distribution system comprising: (i) a hub distribution center, (ii) a plurality of individual subscriber units each connected to said hub distribution center by a fiber optic cable, (iii) means at said hub distribution center for receiving optical signals transmitted from each of said

An information distribution system comprising: (i) a hub distribution center, (ii) a plurality of individual subscriber units each connected to said hub distribution center by a fiber optic cable, (iii) means at said hub distribution center for receiving optical signals transmitted from each of said individual subscriber units to said hub distribution center through the fiber optic cables, (iv) means at said hub distribution center for receiving a plurality of information signals having different characteristic frequencies in frequency division multiplexed form, for selecting a single information signal from said plurality of information signals having different characteristic frequencies, for converting it to a transmission frequency which can be received directly by a television set and for transmitting it as an optical signal to an individual subscriber unit through the fiber optic cable in response to an optical signal transmitted from said individual subscriber unit to said hub distribution center through the same fiber optic cable, (v) means at each of said individual subscriber units for generating and transmitting an optical signal to said hub distribution center through the fiber optic cable, and (vi) means at each of said individual subscriber units for receiving the optical signal transmitted from said hub distribution center and for converting it to an electrical signal at said transmission frequency which can be received directly by a television set.