Teleprinter terminal

Details Teleprinter terminal Teleprinter terminal

1980-05-12

1983-12-06

Shaw, Gareth D.

Boots, shoes, and leggings

G06F 300, G06F 312

Patent

active

044197365

ABSTRACT:
A teleprinter terminal includes a keyboard and a printer, each of which is operated by means of a self-contained microprocessor, and a third microprocessor is programmed to handle the communications. The three microprocessors are interconnected to operate in a four-bit bus manner wherein communications between the processors is done in bytes but the four-bit bus forces the byte to be transferred in two, four-bit exchanges. One four-bit bus is used to connect the communications processor with the keyboard processor and with the printer processor and a second four-bit bus is used to connect the keyboard processor and the communications processor.

REFERENCES:
patent: 4004280 (1977-01-01), Vandierendonck
patent: 4084680 (1978-04-01), Deetz
patent: 4114026 (1978-09-01), Florenza
patent: 4145756 (1979-03-01), Cochran et al.
patent: 4146922 (1979-03-01), Brown et al.
patent: 4156931 (1979-05-01), Adelman et al.
patent: 4159882 (1979-07-01), Sanders et al.
patent: 4264208 (1980-05-01), McCarthy

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