Fault tolerant shift register type memory device

Details Fault tolerant shift register type memory device Fault tolerant shift register type memory device

1976-04-09

1978-11-14

Moffitt, James W.

Static information storage and retrieval

Magnetic bubbles

365 15, 365 12, G11C 1908

Patent

active

041258754

ABSTRACT:
A shift register type memory device according to this invention includes on the same chip as that of an information storing medium, a functional part which identifies defect loops and controls the writing and reading of information so as to exclude them. The functional part includes a defect loop address memory which stores locations of the defect loops in the binary expression, and a common detector which reads out information from the defect loop address memory and information from storage loops.

REFERENCES:
patent: 3909810 (1975-09-01), Naden et al.
patent: 4001673 (1977-01-01), Barrett

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