Patent ID: 8550352

Claim:
A QR (Quick Response) barcode decoding chip, comprising: (a) a characteristic searching unit configured for searching for a characteristic pattern in the barcode image to determine pixel coordinates of the characteristic pattern; (b) a barcode parameter acquiring unit configured for acquiring a barcode parameter according to the pixel coordinates of the characteristic pattern; (c) a version and format parameter acquiring unit configured for acquiring a version and format parameter; (d) a correction characteristic acquiring unit configured for searching for a characteristic position in the barcode image and acquiring a correction characteristic according to the characteristic position; (e) a module information processing unit configured for calculating a grayscale value corresponding to a module according to the version and format parameter, the barcode parameter and the correction characteristic; (f) a binarizing unit configured for binarizing the module grayscale value; (g) a codeword extracting unit configured for extracting a codeword according to the binarized module; and (h) an error correction and decoding unit configured for decoding the codeword.