Method and apparatus for correction of errors in digital audio d

Details Method and apparatus for correction of errors in digital audio d Method and apparatus for correction of errors in digital audio d

1988-06-02

1990-04-17

Atkinson, Charles E.

Excavating

371 681, G06F 1110

Patent

active

049186949

ABSTRACT:
In a system for correction of digital audio data, read out from a magnetic tape in code blocks each containing a number of data words together with first check words and a number of code blocks together form a data field for the columns of which second check words are formed and recorded and wherein audio data are recorded in first and second recordings of each code block, the data read out from the tape are first provided with corrections and error flags for the presence of uncorrectable words by means of the first check words and thereafter the data words are subject to selection of the largest number of error free code blocks from the first and second recordings for submission to error correction with reference to the data field second check words.

REFERENCES:
patent: 3703706 (1972-11-01), Ogura et al.
patent: 4200838 (1980-04-01), Poitevin
patent: 4653051 (1987-03-01), Sugimura et al.
patent: 4742519 (1988-05-01), Abe et al.
patent: 4799113 (1989-01-01), Murakami

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