Apparatus for locating faults in a working storage

Details Apparatus for locating faults in a working storage Apparatus for locating faults in a working storage

1974-08-30

1976-02-24

Atkinson, Charles E.

Registers

Transfer mechanism

Traveling pawl

G06F 1100, G11C 2900

Patent

active

039406016

ABSTRACT:
The disclosure describes a device for locating faults in a working storage arranged in rows and columns.
The device includes an auxiliary storage which holds a sequence of test words and means for cyclically writing the test words into the working storage and reading the test words out of the working storage. A bit for bit word comparator compares the words read out of the working storage with the words read into the working storage and detects bits of the words which do not match in order to identify defective components. First and second registers record the row and the column to which the defective component belongs.

REFERENCES:
patent: 3581074 (1971-05-01), Waltz
patent: 3633016 (1972-01-01), Walker et al.
patent: 3714403 (1973-01-01), Ammann et al.
patent: 3719929 (1973-03-01), Fay et al.
patent: 3751649 (1973-08-01), Hart, Jr.
patent: 3790885 (1974-02-01), James
patent: 3810577 (1974-05-01), Drescher et al.
patent: 3832535 (1974-08-01), De Vito

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