Apparatus for correcting cyclic code data stored in memory and m

Details Apparatus for correcting cyclic code data stored in memory and m Apparatus for correcting cyclic code data stored in memory and m

1985-09-26

1987-10-20

Fleming, Michael R.

Excavating

371 38, G06F 1100

Patent

active

047019140

ABSTRACT:
According to one aspect of the present invention, an apparatus for error correction is comprised of a data storing section for storing data to be corrected, the data including a data field and an error correction field comprised of a predetermined number of bits. The apparatus also comprises a data readout section for reading out, at a first timing, the data to be corrected from the data storing section into a first line, and for reading out, at a second timing, into a second line, the error detection section for fetching the data to be corrected as read out into the first line. The apparatus further comprises means for applying a predetermined operation to the data to be corrected, thereby generating, in synchronism with the second timing, correction data corresponding to the error data. A correction section is also used for periodically fetching both the data to be corrected as read out into the second line and the correction data generated by the error detection section. The data is also subjected to a predetermined correction processing to thereby produce corrected data. Finally, a data write section is used for storing into the data storing section the corrected data as output from the correction section.

REFERENCES:
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patent: 4119945 (1978-10-01), Lewis
patent: 4317202 (1982-02-01), Markwitz
patent: 4335459 (1982-06-01), Miller
patent: 4397022 (1983-08-01), Weng
patent: 4404674 (1983-09-01), Rhodes
patent: 4414666 (1983-11-01), Nelson
patent: 4476458 (1984-10-01), Dollard
patent: 4519080 (1985-05-01), Snyder

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