Communications apparatus for encoding and decoding multiplexed o

Details Communications apparatus for encoding and decoding multiplexed o Communications apparatus for encoding and decoding multiplexed o

1987-12-29

1990-04-10

Griffin, Robert L.

Multiplex communications

Wide area network

Packet switching

455607, 455608, 455612, 455617, H04B 900

Patent

active

049166891

ABSTRACT:
A fiber optic multiplexing controller for transmitting a separate original electrical signal to each of a plurality of signal receiving devices. Each separate original electrical signal originates from one or a plurality of signal sending units. A transmit section of the controller includes an encoder for encoding the separate original electrical signals into a single multiplexed electrical signal. The transmit section further includes a fiber optic transmitter for converting the multiplexed electrical signal to an optical signal. Thereafter, the optical signal is transmitted via fiber optics to a receive section of another identical controller. This receive section includes an optical receiver, provided for the purpose of receiving the transmitted optical signal and converting it to a multiplexed electrical signal. The multiplexed signal, whether electrical or optical, is made up of discrete portions. Each portion of the signal is devoted to a predetermined one of the separate original electrical signals. The receive section further includes a decoder for decoding or de-multiplexing the received multiplexed electrical signal into a corresponding number of received electrical signals, one for each of the receiving devices, and for forwarding the signals via drive circuits provided to communicate with the devices.

REFERENCES:
patent: 3838412 (1974-09-01), Jones et al.
patent: 4267590 (1981-05-01), Bosotti
patent: 4348758 (1982-09-01), Sutherland
patent: 4375691 (1983-03-01), Hackett
patent: 4439857 (1984-03-01), Rauth et al.
patent: 4468765 (1984-08-01), Hensel et al.

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