Barcode encyclopedia : Symbology qrcode
Known as : QR Code 2005
QR barcode - Quick Readable barcode.
- High capacity data
- Numeric - Max. 7089 characters
- Alphabetic - Max.4296 characters
- Binary - 2953 bytes
- Kanji,full-width Kana - Max. 1817 characters
Small printout size - information both horizontally and verticaly, QR Code is capable of encodingthe same amout of data in aproximately one-tenth the space of traditional bar code. Micro QR barcode is available.
Kanji and Kana Capability - Symbology developed in Japan,encoding JIS Level 1 and Level 2kanji character set.
One full Kanji and Kana character is efficiently encoded in 13 bits, allowing QR Code to bold more than 20% data than other 2D symbologies.
Dirt and damage Resistant - maximum 30 % of codewords can be restored
Readable from any direction in 360 degreesStructured append feature - barcode is divide into multiple data areas, information stored in multiple QR Code symbols, can be reconstructed.
Structured Append Feature - can be divided into multiple data areas, stored into multiple QR symbols, can be reconstructed as simple data symbol.One data symbol can be divided into 16 symbols, allowing printing in a narrow area.
| QR Code Outline Specification | Symbol size : 20x20 to 177x177 modules (4 modules per size) |
|---|
| Numeric : | max 7089 characters |
| Alphanumeric : | max. 4296 characters |
| 8 bytes: | max. 2953 characters |
| Other: | Japanese charset, Kanji nad Kana |
| | Very good for large data |
| | check digit and error correction included |
For error correction is used
Reed-Solomon algorithm.
| Error correction | Restore |
| L | Approx. 7% restore can be |
| M | Approx.15% restore can be |
| Q | Approx.25% restore can be |
| H | Approx.30% restore can be |
QR code symbol size:
| Index | Symbol size | Index | Symbol size |
|---|
| 0 | Automatic | 21 | 101x101 |
| 1 | 21x21 | 22 | 105x105 |
| 2 | 25x25 | 23 | 109x109 |
| 3 | 29x29 | 24 | 113x113 |
| 4 | 33x33 | 25 | 117x117 |
| 5 | 37x37 | 26 | 121x121 |
| 6 | 41x41 | 27 | 125x125 |
| 7 | 45x45 | 28 | 129x129 |
| 8 | 49x49 | 29 | 133x133 |
| 9 | 53x53 | 30 | 137x137 |
| 10 | 57x57 | 31 | 141x141 |
| 11 | 61x61 | 32 | 145x145 |
| 12 | 65x65 | 33 | 149x149 |
| 13 | 69x69 | 34 | 153x153 |
| 14 | 73x73 | 35 | 157x157 |
| 15 | 77x77 | 36 | 161x161 |
| 16 | 81x81 | 37 | 165x165 |
| 17 | 85x85 | 38 | 169x169 |
| 18 | 89x89 | 39 | 173x173 |
| 19 | 93x93 | 40 | 177x177 |
| 20 | 97x97 | | |
