Rectangular Micro QR Code

A Rectangular Micro QR Code (rMQR Code) for the URL of the English Wikipedia Mobile main page

Rectangular Micro QR Code (also known as rMQR Code) is two-dimensional (2D) matrix barcode invented and standardized in 2022 by Denso Wave as ISO/IEC 23941. rMQR Code is designed as a rectangular variation of QR code and has the same parameters and applications as original QR code. But rMQR Code is more suitable for the rectangular areas and has difference between width and height up to 19 in R7x139 version. In this way it can be used in places where 1D barcodes are used. rMQR Code can replace Code 128 and Code 39 barcodes with more effective data encoding.

rMQR Code consists of black squares and white square spaces arranged in a square grid on a white background. It has one finder pattern in left-top corner the same as in QR Code and small finder sub-pattern in right-bottom corner. Also, it has alignment and timing patterns to help with recognition. rMQR Code has Reed–Solomon error correction with ability to restore data from corrupted barcodes. As other 2D matrix barcodes it can be read with camera-based readers.

As original QR code, rMQR Code can encode Unicode characters with Extended Channel Interpretation feature, bytes array and can natively encode Japanese characters in kanji encoding. In maximal R17x139 version rMQR Code can encode up to 361 numeric, 219 alphanumeric, 150 bytes and 92 kanji characters.

X0X3X6X9X12X15𝔽256 or GF(2), the elements of which are encoded as bytes of 8 bits; the byte ∑i=07biαi where x8+x4+x3+x2+1, corresponding to the polynomial number 285, with initial root = 0.

Data placement of Rectangular Micro QR Code

Rectangular Micro QR Code places data in the same way as QR code in two-module wide columns commencing at the lower right corner of the symbol and running alternately upwards and downwards from the right to the left.

Before the placement the data is masked with single type of mask (instead of 8 types in QR Code):

↑ "New Mobile Computer BHT-M70 and rMQR Code Launched on the Market". Rfid & Wireless Iot. 2022.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 "DENSO WAVE Develops "rMQR Code", a new rectangular QR Code that can even be printed in long, narrow spaces". www.denso-wave.com.

↑ "細長いQRコード「rMQRコード」登場。狭いスペースに印字可能(Introducing the elongated QR code "rMQR code". Can print in narrow spaces)". ascii.jp (in Japanese).

↑ "QR Code: rMQR Code". www.qrcode.com.

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