Multi-channel redundant processing systems

Details Multi-channel redundant processing systems Multi-channel redundant processing systems

1985-01-28

1987-05-12

Fleming, Michael R.

Excavating

371 68, G06F 1118

Patent

active

046655220

ABSTRACT:
A multi-channel redundant processing system having tightly synchronized redundant processor channels wherein one or more additional processors are connected to each of the redundant channels, the redundant outputs being supplied to such additional processors to permit different processing operations to be performed on such redundant outputs. A selected number of added processors can perform the same processing operations and the processed outputs can be supplied to the redundant processor channels to establish a selected degree of reliability while one or more other added processors can be used to perform other processing operations on the redundant outputs in a non-redundant manner. Further, such added processors can be used to detect software programs fault situations in which multiple versions of software programs are used.

REFERENCES:
patent: 4225961 (1980-09-01), Raggenbass
patent: 4270715 (1981-06-01), Norton
patent: 4375683 (1983-03-01), Wensley
patent: 4400792 (1983-08-01), Strelow
patent: 4484330 (1984-11-01), Moy
patent: 4497059 (1985-01-01), Smith

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