Quality first; service first!
language
Ordinary warranty card
Classification:
Key words:
warranty card
Bar code card is a symbol that combines lines and blanks according to certain coding rules to represent certain letters, numbers and other information. During identification, a bar code reader is used to scan and obtain a group of reflected light signals. After photoelectric conversion, the signals are converted into a group of electronic signals corresponding to lines and blanks. After decoding, the signals are restored to corresponding text numbers and then transferred to the computer.
Product Details
Bar code card is a symbol that combines lines and blanks according to certain coding rules to represent certain letters, numbers and other information. During identification, a bar code reader is used to scan and obtain a group of reflected light signals. After photoelectric conversion, the signals are converted into a group of electronic signals corresponding to lines and blanks. After decoding, the signals are restored to corresponding text numbers and then transferred to the computer.
Bar code types can be divided into: one-dimensional bar code (One Dimensional Barcode, 1D) such as: Code39 code, Code128 code, EAN13 code, UPC code and two-dimensional code (Two Dimensional Code, 2D) two categories. So far, the application of one-dimensional bar code is still mainly used in commodities, so one-dimensional bar code is also called commodity bar code, and two-dimensional code is another kind of bar code that is gradually valued. Its function is stronger than one-dimensional bar code and its application scope is more extensive. In addition, books and periodicals also have international uniform codes, especially ISBN (International Standard Book Number) and ISSN (International Standard Series Number).
Bar code cards are widely used, such as shopping malls, supermarkets, convenience stores, medical cards, library cards, etc., can be applied to bar code cards. Only one bar code reader can read the information in the bar code card, which is very convenient.
Related Products
