Boots – shoes – and leggings
Patent
1980-07-11
1983-10-25
Heckler, Thomas M.
Boots, shoes, and leggings
371 9, 371 10, G06F 1120
Patent
active
044122810
ABSTRACT:
A distributed, fault-tolerant, self-repairable, reconfigurable signal processing system with redundant elements comprising signal processors, mass memories and input-output controllers interconnected by redundant busses forming a high reliability system. The input-output controller element has redundant busses for interconnecting multiple fault-tolerant distributed signal processing systems into a network configuration. One signal processor element in a system is initially designated as the executive and assigns processing tasks from a mass memory to the other elements or other systems. When a failure is detected, the executive verifies the failure, isolates the faulty element and reassigns the task to another spare element. If another element is not available, the executive reconfigures the system to permit degraded operation using the available elements. The executive element, itself, is fault monitored by one of the other elements which is capable of assuming the role of executive as required. The fault-tolerant and reconfiguration capabilities of the system result from a virtual addressing technique for each element, a distributed bus arbitration method and a two-level distributed operating system.
REFERENCES:
patent: 3905023 (1975-09-01), Perpiglia
patent: 4130865 (1978-12-01), Heart et al.
patent: 4228496 (1980-10-01), Katzman et al.
Dawson Walter F.
Heckler Thomas M.
Pannone Joseph D.
Raytheon Company
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