Barcode Glossary B


Barcode-Glossary B

  • Background

  • The light areas between the bars and the area surrounding a printed barcode symbol. The background can be the material on which the symbol is printed but can also be a suitable light color print.

  • Bar Code

  • An assembly of parallel, rectangular bars and spaces which corresponds to the rules of a certain symbology specification and represents data in a machine-readable form.

  • Barcode Character

  • See "Symbol Character".

  • Barcode Character Set

  • See "Character Set".

  • Barcode Density (Symbol Density)

  • The number of characters that can be displayed in one barcode symbol within a linear measuring unit, usually specified in "CPI (characters per inch)" or character per centimeter for linear barcodes, characters per square inch or characters per square centimeter for multi-row symbologies. Here, the width of the narrowest bar or the narrowest space, the ratio between the wide and the narrow elements and the width of the intercharacter gap (if existing) are the prevailing factors.

  • Barcode Element

  • See "Element".

  • Barcode Field

  • The barcode field consists of a barcode symbol (incl. quiet zones, start and stop characters, data characters and check characters) and, in most cases, an additional human readable text (mostly below the barcode symbol).

  • Barcode Reader

  • A device for the acquisition of the data of a barcode symbol. It consists of two components: the scanner which sends signals proportional to the reflectance of each element of the symbol to the decoder, and of the decoder itself. The decoder checks he signals coming from the scanner and translates them into readable and computer-compatible data. The decoder itself is sometimes also called reader or reading device.

  • Barcode Symbol

  • The combination of symbol characters and characteristics, that are necessary for a special symbology – incl. quiet zones, start and stop characters, data characters and check characters – and together form a complete unit readable for the scanner.

  • Barcode Type

  • See "Symbology".

  • Barcode Verifier / Verification Instrument

  • A device for measuring and analyzing the print quality features of a barcode symbol, as for example bar width and quite zone width, reflectance values as well as other attributes, to which the barcode symbol should correspond – with reference to a standard or norm.

  • Bar Height

  • The length (height) of the individual bars within a linear or a multi-row barcode symbol, measured vertical to the scanning direction.
    See also "Y-Module".

  • Bar Pitch

  • See "Bar Spacing".

  • Bar Spacing

  • Number of bars per inch in case of the POSTNET ZIP barcodes.

  • Bar Width

  • The width or thickness of an individual bar within a barcode symbol, measured parallel to the reading direction. The number of possible different widths within a defined printed symbol is depending on the symbology used.

  • Bar Width Properties

  • See "Width Specification".

  • Bi-directional

  • In two directions, i.e. forwards and backwards. The term for a barcode symbol that can be successfully read forwards as well as backwards. The term for a scanner able to successfully operate forwards and backwards.

  • Binary

  • Term for a numeral system operating on a two-number basis, in which the single digits can be displayed by the combination of zeros an ones. Machines can produce this electrically through the positions “on” and “off”. In case of barcodes, this can be displayed by means of narrow and wide bars and spaces, or also by the presence or lack of a bar.

  • Binary Coded Decimal (BCD):

  • A method for the display of decimal digits in a binary code, written in groups of four bits each with the quantifiers 8, 4, 2, 1, read from left to right. Each group represents a digit of the number. For example, 0010 0011 represents the decimal number 23.

  • Binary Symbology

  • See "Two-Width Symbology".

  • BIT

  • Abbreviation for "binary digit".
    1. One single element (0 or 1) in one binary digit.
    2. Unit of the information capacity of a binary memory.

  • Bitmap

  • A raster field saved in the memory, containing the digital information of an image, a graphic, etc. Among others, the Visual Bar Code Designer also generates a Bitmap displaying the barcode as a raster image.