| 摘要 |
The reading and decoding of two- dimensional bar codes in a bar code reader are simplified and field loading of different data character sets is en- abled. Decoding of bar/space patterns of a bar code is simplified by deriving T-sequence data representative of the bar/space pattern and then processing a majority of the T-sequences directly into decoded values representative of the bar/space pattern. Dynamic load- ing of new data character sets fully or partially superseding a factory installed default character set correlation listing is enabled by use of loadable correla- tion listings keyed to foreign language characters, symbols, words or phrases relevant to particular applications. The loadable correlation listings can be en- coded into a two-dimensional bar code and laoded via a reading of the bar co de by the bar code reader.
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