Patent ID: 8757492

Claim:
A scanner device comprising: a scanner unit that scans a symbol and obtains image data; a judgment unit that judges whether a capture distance from the scanner unit to the symbol is a short distance or a long distance; and a decoding unit that: (i) in a case where the capture distance is judged to be the short distance, makes a setting so as to perform: (a) an increase of error permissivity for the image data with respect to threshold values for judging a size of the symbol, or (b) a reduction of a number of collation times for decoding results of the image data, and (ii) in a case where the capture distance is judged to be the long distance, makes a setting so as to perform: (a) a lowering of the error permissivity for the image data with respect to the threshold values, or (b) an increase of the number of collation times; wherein the decoding unit then decodes the image data in response to the setting.