Multiple parallel pipeline processor having self-repairing...

Details Multiple parallel pipeline processor having self-repairing... Multiple parallel pipeline processor having self-repairing...

2006-09-13

2008-11-18

McCarthy, Christopher S (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C712S206000

Reexamination Certificate

active

07454654

ABSTRACT:
A multiple parallel pipeline digital processing apparatus has the capability to substitute a second pipeline for a first in the event that a failure is detected in the first pipeline. Preferably, a redundant pipeline is shared by multiple primary pipelines. Preferably, the pipelines are located physically adjacent one another in an array. A pipeline failure causes data to be shifted one position within the array of pipelines, to by-pass the failing pipeline, so that each pipeline has only two sources of data, a primary and an alternate. Preferably, selection logic controlling the selection between a primary and alternate source of pipeline data is integrated with other pipeline operand selection logic.

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