Barcode encyclopedia : Symbology aztec

AZTEC BARCODE

High density 2D matrix bar code, created in Welch Allyn Inc., Andy Longacre in year 1995, public domain. Aztec code is a 2D matrix barcode symbology designed to combine the best characteristics of several 1^st generation symbologies, with special attention paid to ease of printing, ease of finding in any orientation, allowance for field distortion, high data security with user-selected redundancy, and efficient storage over the range from small to large data messages. Aztec symbols are always a square array of square cells with a square "bullseye" at the center.
Reed-Solomon error control encoding provides a user-selected level of data security and robustness. Reed-Solomon error control encoding provides a user-selected level of data security and robustness.

Main features:

Easy printing
Easy decoding - bulls eye in center
minimum size is 13 chars - equal to EAN13 to size
No need quiet zone
32 code sizes
Reed Solomon error detection/correction, user selectable level

can encode 3750 character from all 256 ASCII chars
center of barcode is "bulls eye"
smallest element is named "element, square dot
error correction symbols size are selectable
FNC1 (GS1) and ECI support
structrured append

The overall size of an Aztec symbol is depended on module size, the total amount of encoded data and error capacity is choosen by the user.
The smallest Aztec symbol is 15 module square and ancode 14 digits with 40 % error correction.
The largest symbol is 151 modules square and can encode 3000 chracters or 3750 digits with 25% error correction.

Encodable character set:
- All 8-bit values
Representations of data : dark module is binary one and light module is binary zero....
Symbol size: smallest 15x15 modules, largest 151x151 modules
Data capacity:
- Smallest Aztec code encodes 13 numeric or 12 alphanumeric or bytes of data
- Largest encodes 3832 numerics, 3067 alphabetic or 1914 bytes.
Error correction:
- User-selectable, from 5 % to 95% of data
- Recomended level is 23% of symbol capacity plus codewords
Codetype : Matrix
Orientation independent : Yes

The size and data bits capacity of Aztec code symbols

Layers	Size	Bit capacity	Capacity
Layers	Size	Bit capacity	Digits	Text	Bytes
1	19x19	126	18	15	8
2	23x23	288	49	40	24
3	27x27	480	84	68	40
4	31x31	704	128	104	62
5	37x37	960	178	144	87
6	41x41	1248	232	187	114
7	45x45	1568	294	236	145
8	49x49	1920	362	291	179
9	53x53	2300	433	348	214
10	57x57	2720	516	414	256
11	61x61	3160	601	482	298
12	67x67	3640	691	554	343
13	71x71	4160	793	636	394
14	75x75	4700	896	718	446
15	79x79	5280	1008	808	502
16	83x83	5880	1123	900	559
17	87x87	6520	1246	998	621
18	91x91	7200	1378	1104	687
19	95x95	7900	1511	1210	753
20	101x101	8640	1653	1324	824
21	105x105	9400	1801	1442	898
22	109x109	10200	1956	1566	976
23	113x113	11040	2116	1694	1056
24	117x117	11904	2281	1826	1138
25	121x121	12792	2452	1963	1224
26	125x125	13728	2632	2107	1314
27	131x131	14688	2818	2256	1407
28	135x135	15672	3007	2407	1501
29	139x139	16704	3205	2565	1600
30	143x143	17760	3409	2728	1702
31	147x147	18840	3616	2894	1806
32	151x151	19968	3832	3067	1914

Data codeword sizes and prime modulus polynomials.
Layers	Codeword	Galois field	Prime Modulus Polynomial	decimal equib.
1-2	6 bits	64	X⁶+X+1	67
3-8	8 bits	256	X⁸+X⁵+X³+X²+1	301
9-22	10 bits	1024	X¹⁰+X³+1	1033
23-32	12 bits	4096	X¹²+X⁶+X⁵+X³+1	4021

Aztec code high-level encoding
	Upper		Lower		Mixed		Punct		Digit
Value	Char	ascii	Char	ascii	Char	ascii	Char	ascii	Char	ascii
0	PS		PS		PS		FLG	***	PS
1	SP	32	SP	32	SP	32	CR	13	SP	32
2	A	65	a	97	SOH	1	CR LF	13,10	0	48
3	B	66	b	98	STX	2	. SP	46,32	1	49
4	C	67	c	99	ETX	3	, SP	44,32	2	50
5	D	68	d	100	EOT	4	: SP	58,32	3	51
6	E	69	e	101	ENQ	5	!	33	4	52
7	F	70	f	102	ACK	6	"	34	5	53
8	G	71	g	103	BEL	7	#	35	6	54
9	H	72	h	104	BS	8	$	36	7	55
10	I	73	i	105	HT	9	%	37	8	56
11	J	74	j	106	LF	10	&	38	9	57
12	K	75	k	107	VT	11	'	39	,	44
13	L	76	l	108	FF	12	(	40	.	46
14	M	77	m	109	CR	13	)	41	UL
15	N	78	n	110	ESC	27	*	42	US
16	O	79	o	111	FS	28	+	43
17	P	80	p	112	GS	29	,	44
18	Q	81	q	113	RS	30	-	45
19	R	82	r	114	US	31	.	46
20	S	83	s	115	@	64	/	47
21	T	84	t	116	\	92	:	58
22	U	85	u	117	^	94	;	99
23	V	86	v	118		95	<	60
24	W	87	w	119	`	96	=	61
25	X	88	x	120	\|	124	>	62
26	Y	89	y	121	~	126	?	63
27	Z	90	z	122	DEL	127	[	91
28	LL		US		LL		]	93
29	ML		ML		UL		{	123
30	DL		DL		PL		}	125
31	BS		BS		BS		UL

SMALL(COMPACT) AZTEC CODE

Small Aztec code is smaller version of Aztec code for coding smaller messages to 95 chars.Decoding rights is some as in Aztec Code

Only 4 sizes of barcode
Easy printing
Easy decoding
reduced size and data capacity

Layers	Size	Bit capacity	Capacity
Layers	Size	Bit capacity	Digits	Text	Bytes
1	15x15	102	13	12	6
2	19x19	240	40	33	19
3	23x23	408	70	57	33
4	27x27	608	110	89	53

Barcode encyclopedia : Symbology aztec

AZTEC BARCODE

Main features:

The size and data bits capacity of Aztec code symbols

SMALL(COMPACT) AZTEC CODE

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