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Graphics Interchange Format  |  1997-01-13  |  29KB  |  549x171  |  4-bit (16 colors)
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OCR: BCH: g(D) = LCM[Q ,, (D) , (D) .. . (D)] RS:g(D) = (D-a)(D-a2) ... (D-a2*) LCM = "Least common multiple" operator ¢.(D) = Minimal polynomial of locator - field element o' t =# Recoverable symbol errors Figure 2: Generator polynomials for BCH and RS codes.