Decrypt the bar-code symbol making use of the comparative analysis of module size manner and the device

摘要

(57) Abstract Making use of the bar of bar-code and the analysis of ratio of module size of the space, the bar-code sign is deciphered method and the device which are improved. This invention be able to apply nominal width of the bar and the space to also all bar-code which one or more it possesses, in addition the bar-code signal, has small signal-noise ratio in the bar-code which possesses plural widths in the specification for bar-code, namely, the damage, unclearness, or when it deteriorates because there is the soiling, or bar-code when it is grasped with the angle which is smaller than optimum angle, this invention especially is useful in bar-code. This invention identified the letter which you decipher fails, in the past it was decipherment impossible with standard method making use of adaptation technology, or the letter which you decipher fails is deciphered, decipherment ratio improves with that, until recently by comparison with technology. This decipherment ratio improves without necessary re-to scan bar-code vis-a-vis the new signal, this invention, especially becomes useful in high-speed operation or 1 pass decipherment operations with that.