![]() #FLORIDA DRIVERS LICENSE BARCODE FORMAT CODE#Also, each code word must indicate which row it belongs to so crossovers, when they occur, can be detected. In order to minimize the effect of these crossings, the PDF417 modules are tall and narrow - the height is typically three times the width. Furthermore, the reader's line scan won't scan just a row it will typically start scanning one row, but then cross over to a neighbor and possibly continuing on to cross successive rows. Additionally, the scan needs to know what row it is scanning, so each row of the symbol must also encode its row number. Those linear scans need the left and right columns with the start and stop code words. PDF417 is a stacked barcode that can be read with a simple linear scan being swept over the symbol. ![]() Mixed: 0–9, &, CR, HT, comma, :, #, -, period, $, /, +, %, *, =, ^, Change to punctuation, SP, Change to lowercase, Change to uppercase, Interpret next digit as punctuation.Lowercase: a–z, SP, Interpret next digit as uppercase, Change to mixed, Interpret next digit as punctuation.Uppercase: A–Z, SP, Change to lowercase, Change to mixed, Interpret next digit as punctuation.Text: Each code word represents two base-30 digits, which are used by a system of four submodes to represent the printable ASCII characters (plus CR, LF and HT):. ![]() Numeric: n digits are encoded in ⌊ n/3⌋+1 code words, up to a maximum of 44 digits in 15 code words. ![]() (Because 900 5 > 256 6.) Additional bytes are encoded one per code word. Byte: each group of 5 code words represents 6 bytes.The three major modes encode different types of data in different ways, and can be mixed as necessary within a single bar code: Of the 929 available code words, 900 are used for data, and 29 for special functions, such as shifting between major modes. ![]()
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