Bidirectional multi-mode data transfer bus system

Details Bidirectional multi-mode data transfer bus system Bidirectional multi-mode data transfer bus system

1982-06-24

1985-01-22

Thomas, James D.

Boots, shoes, and leggings

179 18ES, 179 99R, G06F 304, G06F 504

Patent

active

044955740

ABSTRACT:
A data exchange system permits data transfers where both the length of the data words, and the speed of change of the information represented by the data, can both vary considerably. A central station is connected to an interface circuit, which in turn is radially connected by four-wire conductors or lines to a number of sub-units. Each sub-unit is in turn connected by a bus to a number of modules or sub-assemblies. The interface circuit contains a microcomputer and a coupler circuit. Each sub-unit contains a switching stage, a control logic circuit, and a number of shift registers.

REFERENCES:
patent: 3633169 (1972-01-01), Bickford
patent: 4047159 (1977-09-01), Boundry
patent: 4075691 (1978-02-01), Davis et al.
patent: 4230913 (1980-10-01), Brothers et al.
patent: 4292465 (1981-09-01), Wilson et al.
patent: 4319338 (1982-03-01), Grudowski et al.
patent: 4442504 (1984-04-01), Dummermuth et al.
patent: 4456793 (1984-06-01), Baker et al.

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