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An optical communication system includes a stationary master unit which is adapted to receive through a wired communication bus a plurality of separate communication input signals and communicate a corresponding plurality of separate communication output signals. The master unit converts the input s

An optical communication system includes a stationary master unit which is adapted to receive through a wired communication bus a plurality of separate communication input signals and communicate a corresponding plurality of separate communication output signals. The master unit converts the input signals to pulsed signals and optically transmits the pulsed signals corresponding to each of the separate signals during designated time slots to one of a plurality of separate communication units which preferably are portable units. The portable units reconvert the received pulsed signals to signals corresponding to the original communication signals. Each of the portable units also receives individually separate communication signals, converts the received communication signals to pulsed signals and optically transmits the pulsed signals to the master unit in the same manner. The master unit converts the received pulsed signals to communication output signals and communicates them over the bus to a designated output terminal. Range extending units may be coupled to the master unit. The disclosed optical system is particularly adaptable to improve existing communication systems at drive-up windows of banks or similar installations.

대표청구항 ▼

A pulsed communication system comprising: means for generating consecutive cycles, each cycle defining a plurality of sequential time slots including a plurality of first data time slots and a plurality of second data time slots; a plurality of first communication units each first unit including a c

A pulsed communication system comprising: means for generating consecutive cycles, each cycle defining a plurality of sequential time slots including a plurality of first data time slots and a plurality of second data time slots; a plurality of first communication units each first unit including a communication port having an input and an output terminal and means for receiving from the input terminal a communication in the form of first type signals and for transferring to the output terminal a communication in the form of first type signals, means for converting the received first type signals to a sequence of pulses and for transmitting the converted first type signals as pulsed signals, one pulse during each cycle and during a predetermined one of the second data time slots thereof, means for receiving pulsed signals, one pulse during each cycle and during a predetermined one of the first data time slots thereof, and means for converting the received pulsed signals to first type signals and for transferring the received pulsed signals as first type signals to the output terminal of each first communication unit; and a master unit including an interface having a plurality of separate input and output ports, means for receiving from each input port a separate communication in the form of said first type signals and for transferring to each output port a separate communication in the form of said first type signals, means for converting the received first type signals to a sequence of pulses and for transmitting the converted first type signals as pulsed signals, one pulse of each separate communication during a predetermined first data time slot of each cycle to correspond to a predetermined first data time slot for receipt of said pulse by a designated one of said first units, and means for receiving a plurality of separate communications independently of each other from the first communication units in the form of said pulsed signals, one pulse of each separate communication during a predetermined second data time slot indicative of transmission from a predetermined one of the first units, means for converting said pulsed signals to separate communications of first type signals and for transferring the separate communications to a predetermined one of the output ports.