050 ~ 059 coupons, 300 ~ 379 France, 380 Bulgaria, 383 Slovenia, 385 Croatia, 387 Bosnia and Herzegovina, 400 ~ 440 Germany, 450 ~ 459; 490 ~ 499 Japan, 460 ~ 469 Russia, 470 Kyrgyzstan, 47 1 China Taiwan Province Province, 474 Estonia, 475 Latvia, 476 Azerbaijan, 477 Lithuania, 478 Uzbekistan, 479 Sri Lanka, 480 Philippines.
48 1 Belarus, 482 Ukraine, 484 Moldova, 485 Armenia, 486 Georgia, 487 Kazakhstan, 489 China Special Zone, 500-509 Britain, 520 Greece, 528 Lebanon, 529 Cyprus, 530 Albania, 53 1 Macedonia, 535 Malta, 535 Malta.
590 Poland 594 Romania 599 Hungary 600 60 1 South Africa 603 Ghana 608 Bahrain 609 Mauritius 61Kloc-0/Morocco 6 13 Algeria 6 16 Kenya 6 16 Kenya. Libya, Jordan, Iran, Kuwait, Saudi Arabia, United Arab Emirates, Finland and People's Republic of China (PRC).
700 ~ 709 Norway, 729 Israel, 730 ~ 739 Sweden, 740 Guatemala, 74 1 El Salvador, 742 Honduras, 743 Nicaragua, 744 Costa Rica, 745 Panama, 746 Dominica, 750 Mexico, 754 ~ 755 Canada, 759 Venezuela, 760 ~.
786 Ecuador 789 ~ 790 Brazil 800 ~ 839 Italy 840 ~ 849 Spain 850 Cuba 858 Slovakia 859 Czech 860 Yugoslavia 865 Mongolia 867 Korea 869 Turkey 870 ~ 879 Netherlands 880 Korea 884 Cambodia 885 Thailand.
893 Viet Nam, 899 Indonesia, 900 ~ 9 19 Austria, 930 ~ 939 Australia, 940 ~ 949 New Zealand, 955 Malaysia, 958 China Special Administrative Region.
Extended data:
Recognition principle of bar code:
Bar code symbol is an information symbol composed of "bars" and "spaces" with different reflectivity according to certain coding rules. Because the "bar" and "space" in the bar code symbol have different reflectivity to light, the bar code scanner receives reflected light signals with different intensities and generates electric pulses with different potentials accordingly.
The width of "bar" and "empty" in bar code symbols determines the length of electric pulse signals with different potentials. The optical signal received by the scanner needs to be photoelectrically converted into an electrical signal and amplified by an amplifier circuit. Because the scanning spot has a certain size, the edge in bar code printing is blurred and other reasons, the bar code electrical signal amplified by the circuit is a smooth fluctuation signal, which is called "analog electrical signal".
"Analog electrical signals" need to be shaped into ordinary "digital signals". According to the coding rules corresponding to the coding system, the decoder can read the "digital signal" as digital and character information.