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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 encod

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.

대표청구항 ▼

A fiber optic multiplexing communications apparatus for receiving separate original electrical digital signals originating from a plurality of signal sending units, and for transmitting information based on said separate original electrical digital signals to a plurality of receiving devices to oper

A fiber optic multiplexing communications apparatus for receiving separate original electrical digital signals originating from a plurality of signal sending units, and for transmitting information based on said separate original electrical digital signals to a plurality of receiving devices to operate the latter, said apparatus comprising: encoding means for encoding said separate original electrical digital signals into a single multiplexed optical signal comprising discrete portions, including a synchronization signal portion and other portions, each of said other portions being devoted to one of said separate original electrical signals and capable of exhibiting a signal of predetermined frequency when its corresponding original electrical digital signal is in an “on”state and capable of exhibiting no signal when its corresponding original electrical digital signal is in an “off”state; fiber optic transmission means for transmitting said multiplexed optical signal; decoding means for receiving the transmitted optical signal from said fiber optic transmission means and for decoding said optical signal into a plurality of received electrical signals, one for each of said plurality of receiving devices, each of said received electrical signals corresponding to one of said separate original electrical digital signals; a plurality of output drive circuits, one for each of said receiving devices, for distributing said received electrical signals to the proper ones of said receiving devices; and means for periodically sensing the status of said plurality of separate original electrical digital signals and for providing reset signals to said encoding means to cause the latter to provide a sequence of single multiplexed optical signals.