Method and apparatus for detecting and concealing data errors in

Details Method and apparatus for detecting and concealing data errors in Method and apparatus for detecting and concealing data errors in

1996-06-05

1998-07-14

Elmore, Reba I.

Excavating

371 491, 371 3701, G06F 1100, H03M 1300

Patent

active

057815640

ABSTRACT:
A method and apparatus is disclosed for detecting and concealing errors in stored digital samples. A multibit digital input sample is received and an error detecting code, corresponding to that input sample is calculated. Then a multibit digital storage sample is generated by substituting the error detecting code for the same number of least significant bits of the input sample. The storage sample is then stored in a memory device. A previously stored sample is retrieved from the memory device and is analyzed to detect whether an error has occurred. If an error is analyzed to detected, a substitute sample produced for the retrieved sample, otherwise the retrieved sample is produced.

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