Apparatus for correcting errors

Details Apparatus for correcting errors Apparatus for correcting errors

1988-11-14

1990-09-11

Lastova, John R.

Excavating

371 403, G06F 1110

Patent

active

RE0333328

ABSTRACT:
There is provided an apparatus for correcting errors in data which has, as a unit, (n+k+m+l) symbols subjected to the processing for the error correction coding when data consisting of different kinds of n symbols and m symbols is transmitted as a unit. This error correcting apparatus comprises: a first decoder to which (n+k) symbols are supplied and which generates a first flag signal indicative of the error state by at least performing the error detection; and a second decoder to which the (n+k) symbols corrected by the first decoder and the (m+l) symbols received are supplied and which generates a second flag signal representing the error state by performing the error detection and performs the error correction using the first and second flag signals.

REFERENCES:
patent: 3988677 (1976-10-01), Fletcher
patent: 4276646 (1981-06-01), Haggard
patent: 4317201 (1982-02-01), Sedalis
patent: 4497058 (1985-01-01), Sako

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