Interface for establishing communications between a data-process

Details Interface for establishing communications between a data-process Interface for establishing communications between a data-process

1975-10-15

1977-07-05

Zache, Raulfe B.

Boots, shoes, and leggings

G06F 300

Patent

active

040343464

ABSTRACT:
An interface connects a data-processing unit to a group of m working stations, each including items of data emitting and receiving apparatus. The unit and each of the items of apparatus transmit and receive binary data in parallel characters in response to control signals generated by the unit. The characters are coupled between the interface and stations as serial bits via a separate channel that extends to each station. Each channel includes separate lines for sending the characters in opposite directions. At the interface, there are provided m transmitter/receiver circuits, one of which is associated with each of the m stations. There is a transmitter/receiver circuit associated with each item of apparatus at each of the stations. Each transmitter/receiver circuit includes a parallel to serial converter for each parallel input character supplied to it and a serial to parallel converter for each series character applied to it. Parallel output characters from the unit are selectively applied as parallel input characters to each of the station transmitter/receiver circuits. Parallel output characters of each apparatus transmitter/receiver circuit associated with a particular item of apparatus are applied as parallel input characters to the item of apparatus associated with the apparatus transmitter/receiver circuit.

REFERENCES:
patent: 3454936 (1969-07-01), Bridge et al.
patent: 3543240 (1970-11-01), Miller et al.
patent: 3863226 (1975-01-01), Ryburn

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