A Reed-Solomon error correction code adds redundant correction codes and allows reliable reception during moderate data loss.
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By using this code in combination with a smaller mark size and a more efficient error-correction code, the capacity of CD media was tripled.
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This information is protected with a strong Reed-Solomon error correction code, allowing it to be read even if a portion of the symbol is damaged.
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However, GCR has come to refer to the recording format of 6250 cpi tape as a whole, and later to formats which use similar RLL codes without the error correction code.
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Where the earth's atmosphere interfered, causing pixel errors, NASA employed the same error-correction code algorithm used with CDs and DVDs to smooth things over.
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The CCSDS currently recommends usage of error correction codes with performance similar to the Voyager 2 RSV code as a minimum.
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Example of a QR code with artistic embellishment that will still scan correctly thanks to error correction.
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This code is a combination of a parity track and polynomial code similar to a CRC, but structured for error correction rather than error detection.
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Where a 1D code might carry 10 to 20 digits, a 2D code could squeeze in 50 to 100 characters, with substantial error correction to offset camera defects.