US 5555478 Fiber optic information transmission system
ABSTRACT – A unique fiber optic network with shunting routing devices strategically placed on the fiber optic matrix. These shunting devices divert the packeted information through the network to the intended subscriber. Emergency back-up and alternative routes are provided for in the system.
TECHNICAL FIELD OF THE INVENTION
A fiber optic information transmission system.
BACKGROUND OF THE INVENTION
Information transmission currently includes the transmission of voice and video signals, as well as other digital information to and from home/offices. Home/offices are usually described as subscribers to the transmission system. Traditional methods of information transmission include the use of central office switching, local loops, cable and cable farms, and dedicated wire pair transmission. Digital transmission of information and the use of fiber optic networks are also known in the art. The use of these new technologies in handling transmission of information, however, has yet to be optimized into an effective and efficient system.
SUMMARY OF THE INVENTION
The present invention combines the benefits of fiber optic cable transmission (such as a very large bandwidth) into a new distribution network. This invention eliminates the need for traditional information transmission concepts, such as local loops, cable and cable farms, central office switching, and main distribution frames. The result of this invention is an effective and efficient system.
This invention places an enhanced line card with the station set at the subscriber location and utilizes a new distribution matrix of fiber optic cables. Routing devices strategically placed on this matrix of fiber optic cables shunt packeted information to the intended destination throughout the fiber optic cable matrix. These shunting devices are known as shared intelligent communication platforms (ICP), intelligent line modules (ILM), and intelligent routing cards (IRC). Simultaneous transmissions are capable of being supported by the fiber optic cables. This sharing of the fiber optic cable is accomplished using transmission packets of information such as voice, data, fax or video transmitted at different frequencies. This sharing of the fiber optic cables in the network eliminates the inefficiencies of dedicated wire pairs to an individual subscriber.
Computers are used to interface with the fiber optic network in order to support communication with other fiber optic networks, international communication networks, or networks not using the same transmission system as described in this invention. These computers also keep track of billing information and toll calculations for subscribers on the network. A back-up system and emergency backup routes are used in this information transmission network to minimize the possibility of transmission failures and maximize the throughput of the network.
Through the novel configuration of the shunting devices on the unique fiber optic matrix, the invention establishes a digital information network having a very high capacity and numerous alternative routes in case of emergencies or device failures.