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Barcode Knowlegde

Glossary

Article Numbering Association (A.N.A.) The co-ordinating body in the U.K. for article numbering using the EAN, ITF-14 and EAN-128 standards. Now renamed GS1.

AIM Automatic Identification Manufacturers Association. This organisation has branches in most countries or regions. It is supported by manufacturers and suppliers of automatic ID equipment and services.

Alphanumeric A character set including numbers and letters.

ASCII The American Standard Code for Information Interchange. This character set is used for standard communication between electronic devices such as computers and scanners.

Bar Width Reduction The thinning of bars within a bar code which compensates for print gain.

Bearer Bars The protective printed lines or box around a bar code which help to support the printing plate and reduce the squashing effect on the bar code image.

Code 128 A full alphanumeric bar code type which can encode the entire ASCII character set.

Code 39 An alphanumeric bar code type which can encode capital letters, numbers and 7 special characters.

Codabar A bar code type which may encode 0-9 and six special characters. Four different start and stop patterns are used to signify different uses.

CPI Characters per inch.

EAN European Article Number. The international standard for coding retail goods.

Film Master A primitive source of bar code images, now redundant.

Font The design or typestyle of a complete character set of printers type.

Guard Bars The bar space patterns at the start, centre and end of EAN and UPC codes. Used as a reference point for the scanning device.

GS1 The co-ordinating body in the U.K. for article numbering using the EAN, ITF-14 and EAN-128 standards.

HIBC The Health Industry Bar Code. The format for coding goods within the U.S. health industry using conventional symbologies.

Interleaved 2 of 5 A numeric-only bar code symbology. Characters are encoded in pairs with the bars representing the first character and the spaces representing the second.

ISBN International Standard Book Number. Represented by the ISBN/EAN bar code on books.

ISSN International Standard Serial Number. Represented on magazines and periodical publications by the ISSN/EAN bar code.

Magnification The method of describing bar code width and height in some symbologies. 100% magnification is also called “nominal size”.

Micron One thousandth of a millimetre (1µ)

Narrow Bar The width of a single module or narrowest bar in some symbologies.

Nominal Size The standard size for a bar code of a given symbology.

Numeric Representation using only the digits 1,2,3,4,5,6,7,8,9 and 0.

OCR-A and OCR-B Character sets or fonts both of which may be machine or human read. Used for the human readable information in barcoding.

Parity A way of encoding bar/space patterns using an odd or even number of modules bars or spaces. The parity may be calculated by the scanner to provide an error check.

PostScript The high-quality image description language developed by Adobe Systems Inc. which uses vectors to describe graphical elements.

Printer Compensation A method of adjusting bar width to compensate for a bias on a print device.

Quiet Zone The light space at either side of a bar code which is needed by the scanner to detect the start and end of the code.

Raster A series of dots or cells arranged in a regular grid.

Reflectance The ability of a surface or printed area to reflect light.

Start Character The specific bar/space pattern which indicates the start of a bar code.

Stop Character The specific bar/space pattern which indicates the end of a bar code.

Truncation The reduction in bar height below nominal height or that normally specified.

Transposition The switching of the order of a pair of digits. The most common error in keyed data entry.

Uniform Code Council (U.C.C.) The U.S. organisation which administers the UPC and other retail specifications.

Universal Product Code (U.P.C.) The standard bar code type for retail products in the U.S.

Verifier A device used to measure the bars and spaces of a bar code and report on their accuracy in relation to the specified tolerances.

Wide/Narrow Ratio The ratio between the narrow bar and the wide bar widths in certain bar code symbologies.

X dimension The nominal width of a narrow bar.

Zero Suppression The method of shortening a bar code number by eliminating 0’s.

Bar Code FAQ for Libraries

Bar Code FAQ for Libraries What are bar codes?A bar code is simply a way of representing data through a series of machine-readable bars and spaces.  When this pattern of bars and spaces is scanned, the elements that make up the symbol give a reflective (a space) or non-reflective (a bar) response that the bar …

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Bar Code Structure

All barcodes are constructed from a series of bars and intervening spaces. The relative size of these bars and spaces and the number of them is decided by the specification for the symbology (or bar code type) which is being used. There are a number of symbologies in common use. Each symbology differs in the …

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Barcode Event Recap

MoMo NYC July 25th Barcode Event Recap Posted by New York on August 3, 2011 under New York Photo taken by Dean Collins. Barcode Event Recap Angie Schottmuller our moderator provided the following personal recap of the our recent barcode event: Panel Insights There’s a growing demand and hunger for knowledge on the topic. The …

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Barcode Glossary

Article Numbering Association (A.N.A.) The co-ordinating body in the U.K. for article numbering using the EAN, ITF-14 and EAN-128 standards. Now renamed GS1. AIM Automatic Identification Manufacturers Association. This organisation has branches in most countries or regions. It is supported by manufacturers and suppliers of automatic ID equipment and services. Alphanumeric A character set including …

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Barcode ISO Verification

During the 1980s, two factors led to attempts to improve the traditional verification technique. One was the disparity between traditional verification results and the real life performance of symbols, and the other was the increasing number of product rejections by customers based on differing verification results between the supplier’s instrument and his customer’s. A wide-ranging …

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Axial distortion

Direct Part Marking Applications (DPM)

  For Data Matrix and QR code the Decoding Method parameter selects the decoding algorithm according to the printing/marking technique used to create the symbol and on the overall printing/marking quality. The Direct Marking selection improves the decode rate for low quality Direct Part Mark codes and in general for Direct Part Mark codes with …

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FAQ of Online Barcode Verify

Question: Why do I need Online Barcode Verify (OBV)? Answer: In real-life label production runs with thermal type printers, bar code image quality can be degraded by conditions that are external to the printer mechanism. Among these:   – A wrinkled ribbon   – Label media defects   – Burned printhead pixels   – Misaligned …

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PostScript Imaging of Bar Codes

PostScript is a vector based image description language. PostScript images are described by mathematical co-ordinates. When you save an EPS file, it uses the PostScript language. The PostScript description of a bar code defines bars and spaces in very precise terms. No imaging device available today can approach the accuracy of this PostScript description. BoundingBox: …

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QR Code Overview

Structure of a QR code, highlighting functional elements Although initially used to track parts in vehicle manufacturing, QR codes are now (as of 2011[update]) used over a much wider range of applications, including commercial tracking, entertainment and transport ticketing, product marketing and in-store product labeling. Many of these applications target mobile-phone users (via mobile tagging). …

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Symbologies(Barcode Types)

The mapping between messages and barcodes is called a symbology. The specification of a symbology includes the encoding of the single digits/characters of the message as well as the start and stop markers into bars and space, the size of the quiet zone required to be before and after the barcode as well as the …

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What’s Bar Code Verification?

Back when bar codes were first introduced printers printed bar codes and manufactures built scanners to read those bar codes. Problems quickly arose when some of the bar codes were not scannable. The question was, is it the scanner or is it the bar code? This led to the first standardize method to grade a …

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