Data Matrix ECC 200
ECC 200 is the newest version of Data Matrix and uses Reed-Solomon codes for error and erasure recovery. ECC 200 allows the routine reconstruction of the entire encoded data string when the symbol has sustained 30% damage, assuming the matrix can still be accurately located. Data Matrix has an error rate of less than 1 in 10 million characters scanned.
Symbols have an even number of rows and an even number of columns. Most of the symbols are square with sizes from 10×10 to 144×144. Some symbols however are rectangular with sizes from 8×18 to 16×48 (even values only). All symbols utilizing the ECC 200 error correction can be recognized by the upper right corner module being the same as the background color. (binary 0).
Additional capabilities that differentiate ECC 200 symbols from the earlier standards include:
- Inverse reading symbols (light images on a dark background)
- Specification of the character set (via Extended Channel Interpretations)
- Rectangular symbols
- Structured append (linking of up to 16 symbols to encode larger amounts of data)
Read more about this topic: Data Matrix (computer), Technical Specifications
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