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Barcode Warehouse - Barcode glossary
Category: Electronics and Engineering > Barcode
Date & country: 24/11/2007, UK
Words: 237


Accuracy
The determination of whether any element width or inter-character gap width (if applicable) differs from its nominal width by more than the printing tolerance

ADC
Automated Data Collection or Automated Data Capture - refers to all technologies that automate the process of data collection without the use of a keyboard, including bar code, magnetic stripe, (OCR) optical card reader, voice recognition, smart card or (RFID) radio frequency identification. ADC provides a quick accurate and costeffective way to co…

Adhesive
1) A substance (cement, glue, gum) capable of holding materials together by surface contact. 2) The portion of a pressure sensitive abel which allows the label to cling to its intended surface

AIAG
Automotive Industry Action Group. A trade association responsible for creating automotive industry standards pertaining to bar code symbology and common label formats

AIM
Automatic Identification Manufacturers, Inc. A U.S. trade association headquartered in Pittsburgh, PA who represent the manufacturers of automatic identification systems

Alignment
In an automatic identification system (Auto ID), the relative position and orientation of a scanner to the symbol

Alphanumeric
A character set consisting of letters, numbers and usually other character such as special symbols

ANSI
American National Standards Institute – a non-governmental organization responsible for the development of voluntary bar code, quality standards. Bar code printing standards and the readability of bar code symbols are determined and classified into grades from A to F, in order to provide an overall symbol quality test

Aperture
The opening on an optical system (scanner) that establishes the field of view

Application
The particular use of the label, tag or ticket will serve once the barcode, text, or graphic image is applied

Application Temperature
The temperature at the time the label is applied

Backcoating
Used on a thermal transfer ribbon to prevent the ribbon from sticking to the printhead and to the substrate (media/label material). It also protects the printhead from excessive heat, static, and abrasion

Background
The spaces, quiet zones, and areas surrounding a printed symbol

Bar Code
A bar code is a piece of Automatic Identification Technology (Auto ID) that stores real time data. It is a series of vertical bars or a graphical bar pattern which can, (depending on the width and pattern) encode numbers and letters in a format which can easily be retrieved and interpreted by a bar code reader

Bar code Character
A single group of bars and stripes that represents a specific quantity (often one) of numbers, letters, punctuation marks, or other symbols. This is the smallest subset of a bar code symbol that contains data

Bar Code Density
The number of characters that can be represented in a linear unit of measure. This number is often expressed in characters per inch or cpi

Bar Height - Length
The bar dimension perpendicular to the bar width. Also called bar height. Scanning is performed in an axis perpendicular to the bar length

Bar Width
The thickness of a bar measured from the edge closest to the symbol start character to the trailing edge of the same bar

Barcode
A bar code is a piece of Automatic Identification Technology (Auto ID) that stores real time data. It is a series of vertical bars or a graphical bar pattern which can, (depending on the width and pattern) encode numbers and letters in a format which can easily be retrieved and interpreted by a bar code reader

Bi-Directional
Bar code symbology capable of being read successfully independent of scanning direction

Binary
A numbering system that uses only 1’s and 0’s

Bitmapped Font
Refers to the inherent character and font sets found within a thermal printer and their respective ability to be adjusted and 'shunk to fit'. Bitmapped fonts are commonly available in limited point sizes - ex - 6, 8, 10, 12, 14 and 18 point - whose edges can become distorted or rough with manipulation outside the prescribed point size ranges

c.c.d
Charge Coupled Device. Type of bar code scanner that uses LEDs (not lasers) to flood the bar code with light

Character
(1) A single group of bars and spaces that represents a specific number (usually one) of numbers, letters, punctuation marks, or other symbols. (2) A graphic shape representing a letter, numeral, or symbol. (3) A letter, digit, or other symbol that is used as part of the organization, control, or representation of data

Character Alignment
The vertical or horizontal position of characters with respect to a given set of reference lines

Character Density
Within a linear bar code symbol, the number of data characters per unit length (typically per inch). For a discrete symbology, the character width must include the intercharacter gap

Character Font
Refers to the range and variety of data characters available within a given thermal printer model – Ex – 7 Bitmapped fonts type A,B,C,D,E,F and 1 Scaleable font

Character Set
A range of data characters (alpha, numeric, and/or punctuation) that can be encoded into any given symbology. (2) Refers to the international characters and graphic symbols available within a given thermal printer model – Ex – IBM® Code Page 850

Check Character
A mechanically calculated number included within a string of data whose value is used for the purpose of performing a mathematical check to insure that the bar code message is scanned and read correctly

Check Character - Digit
A mechanically calculated number included within a string of data whose value is used for the purpose of performing a mathematical check to insure that the bar code message is scanned and read correctly

Check Digit
A mechanically calculated number included within a string of data whose value is used for the purpose of performing a mathematical check to insure that the bar code message is scanned and read correctly

Codabar
a barcode symbology that uses four bars and three spaces to represent the numbers 0 through 9 and a set of special characters

Code 11
is a barcode symbology developed by Intermec. It uses 11 characters: 0 through 9 and -

Code 128
Code 128 is an alphanumeric bar code specifically designed to reduce the amount of space the bar code occupies. Each printed character can have one of three different meanings, depending on which of three different character sets are employed. Code 128 can be recognized as the labeling standard for UCC/EAN 128, used as product identification for co…

Code 16k
This symbol is a stack of from 2 to 16 rows

Code 39
is the most commonly used bar code. It can encode both numbers and letters which is ideal for most industrial and non-retail applications. The Automotive industry uses Code 39 as its standard for shipping container labels. If you are just starting out a bar code application of your own, we recommend using Code 39

Code 49
was introduced in 1987 by the Intermec Corporation as a multi-row, continuous, variable length symbology and was the first stacked (two dimensional) barcode to receive widespread interest

Code 93
Code 93 is the complimentary version of Code 39 and allows labels to be approximately 30 percent shorter than Code 39

Concatenation
The ability of a reading system to join together that data from multiple symbologies and interpret the information in a single message

Continuous Bar Code
The end of each character in the bar code message marks the beginning of the next character; there are no intercharacter gaps to separate the characters in the bar code message. Ex – Interleaved 2 of 5 code

Continuous Media
Label, ticket or tag stock media that does not contain any notches, gaps or holes between each label. The label length must be specified in the label program

Contrast
The difference in reflectance between the black and white (or bar and space) areas of a symbol

d.p.i
Dots Per Inch. Used in comparing relative printing resolution of thermal printheads and laser print engines

Data Communications Equipment
(DCE) Devices designed to manipulate transmitted data, such as modem

Data Terminal Equipment
(DTE) A digital device such as a display terminal, data entry terminal, or printer which may be used to view or enter data. This device has a different communication connector pinout than DCE (see DCE)

Decoder
A software or hardware means of translating bar codes into alphanumeric data. A bar code reader is required to scan the information into the decoder

Decoder
In a bar code reading system, the electronic package that receives signals from the scanner, performs the algorithm to interpret the signals into meaningful data, and provides the interface to other devices

Density
The term used to designate the compactness of a bar code which measures the narrowest element (usually in mils) of that bar code

Density
Within a linear bar code symbol, the number of data characters per unit length (typically per inch). For a discrete symbology, the character width must include the intercharacter gap

Depth of field
The distance between the maximum and minimum plane in which a bar code reader is capable of reading symbols

Depth of Field
The distance between the maximum and minimum plane in which a code reader is capable of reading symbols of a specified “X� dimension

Diffuse Reflection
The component of reflected light that emanates in all directions from the reflecting surface

DIN connector
DIN is short for Deutsches Insitut für Normung eV, the standards -setting organization for Germany. A DIN connector is a connector that conforms to one of the many standards defined by DIN. DIN connectors are used widely in personal computers. For example, the keyboard connector for PCs is a DIN connector

Direct Thermal
(DT) Direct thermal printing is an old technology originally designed for low cost copiers and fax machines. It has since been transformed into a highly successful technology for bar coding. The thermal printhead is typically a long linear array of tiny resistive heating elements (100-300/inch) arranged perpendicular to the paper flow. Each thermal…

Discrete Bar Code
Each character of the bar code message stands alone, separated by intercharacter gaps, and can be read independently from the others

Dot Matrix Printing
A print technology that employs several needles which are evenly spaced across a moveable horizontal shuttle which oscillates back and forth as the paper advances. Dot matrix printers print a bar code by creating overlapping adjacent dots to produce approximations of a straight edge line. Prints low to medium density bar codes that may not meet cer…

DPI
Dots Per Inch. Used in comparing relative printing resolution of thermal printheads and laser print engines

DRAM
Dynamic Random Access Memory – is one type of chip used in Random Access Memory. It stores information as an electrical charge. Because this charge dissipates over time, the computing device must periodically run a “refresh cycleâ€? on the chips to recharge them – hence “dynamicâ€?. As it is a type of RAM, it will lose its information when …

E.A.N
or the European Article Number is the European version of the UPC (Uniform Product Code) bar code of retail food packaging that enables this linear bar code to be used internationally. Like the U.S. equivalent UPC code, there are two different types of EAN codes, EAN 8 and EAN 13

E.D.I
Electronic Data Interchange - A method by which data is/are electronically transmitted from one point to another

E3
Element Energy Equalizer – Zebra’s sophisticated method of ensuring that the correct amount of heat is delivered to each part of a printhead at all print speeds in order to optimize the quality of the barcodes that are produced

EAN-13
has 13 characters or symbols. It is very much like the UPC code and has the 13th character as a means of identifying in what country the product will be used

EAN-8
has a left-hand guard pattern, four odd parity digits, a center guard pattern, four even parity digits, and a right hand guard pattern with a total of eight symbols

EBCDIC
Extended Binary Coded Decimal Interchange Code which was developed by IBM and is used extensively in systems featuring IBM processors. Each character is represented by a six bit structure with the capability of generating 64 combinations

Edge Roughness
Irregularities in the printing of bar code elements, resulting in a non-uniform edge and edge errors

EDP
Electronic Data Processing - the act of processing information electronically

EIA
Electronic Industries Association – a trade association

Electrostatic
A method of printing that utilizes a special electrostatic paper or charged drum, both of which attract toner to the charged area

Element
A single bar or space in a bar code symbol

EPROM
The abbreviation for erasable programmable Read Only Memory – (See ROM)

F.A.C.T
Federation of Automated Coding Technology - A bureau of AIM consisting of organizations that use and promote automatic identification among their members

Face Material
The part of the substrate (media) where printing occurs

Facestock
The part of the substrate (media) where printing occurs

First Read Rate (FRR)
The ratio of the number of successful reads on the first scanning attempt to the number of attempts. Commonly expressed as a percentage and abbreviated as FRR

Fixed Ratio
The ratio between the width of the bars in the code is a fixed standard and cannot be changed

Flash Memory
Read/Writeable RAM (a.k.a. Non-Volatile RAM) This is a type of Random Access Memory chip that does not lose its contents when its power is turned off; however, it can be intentionally written to, read from, and intentionally erased. It is a type of RAM and, hence, interacts with the computer or processor as described under “RAMâ€? except that it …

Flexographic Printing
The process whereby a pre-printed label, tag or ticket is printed by using a raised image plate surface to transfer wet ink to a printing substrate

Flood Coat
A thin coating of ink applied to the top of printing screen by the flood bard or, in manual operations, by the squeegee prior to printing the stroke

Foil
A cloth or plastic tape coated with several layers of material, on of which is inklike, that produces the visible marks on a substrate. Used on formed font impact, dot matrix, thermal transfer and hot stamp printers. Also called a ribbon

Guard Bars
Bars that are at both ends and center of a UPC and EAN symbol which provide reference points for scanning. Guard bars are similar in function to start and stop characters

Hand-Held Scanner
A hand-held scanning device used as a contact bar code reader or OCR (optical code) reader

Heat Resistance
The property of a material which inhibits the occurrence of physical or chemical changes caused by exposure to high temperatures

HIBCC
Abbreviation for the Health Industry Business Communications Council – a trade association responsible for the symbology and label format used by the health care industry

High Density
This bar code type has narrow spaces and bars with an “X� dimension that is less than 7.5 mils

Holding Power
The ability to withstand stress, as in holding rigid label materials on smaller diameter cylindrical objects or in holding weight

Horizontal Bar Code
A bar code or symbol presented in such a manner that its overall length dimension is parallel to the horizon. The bars are presented in an array that looks like a picket fence

Human Readable
The interpretation of bar code data, often printed immediately below the bar code in a readable format to humans

Human-Readable
The interpretation of bar code data, often printed immediately below the bar code in a readable format to humans

I.P.S
Inches Per Second (refer to Print Speed)

IEEE
Institute of Electrical & Electronic Engineers – a trade association

Impact Printing
or dot matrix - Any printing system where a micro-processorcontrolled hammer impacts against a ribbon and a substrate (label media)

Industry Standards
were created to encourage consistency across specific industries. Some of the more common standards are from the Automotive Industry Action Group (AIAG), Electronic Industry Association (EIA), the Health Care Industry Bar Code (HCIB) and the UCC Retail Pallet Format

Ink Jet Printing
Common direct marking process and a favorite on high speed production lines. Ink droplets are selectively deflected between a moving product and an ink return channel . Ink jet printing is frequently used for coding products and cartons with human readable data and lot codes at very high speed and for case coding of cartons with bar codes. Bar code…

Ink Layer
The bottom layer of a thermal transfer ribbon of a thermal ribbon which is composed of waxes, resins or a combination of both

Interlabel Gap
The space, notch or hole between labels used by the media sensor on the printer to determine the label length and top of form

Interleaved 2 of 5
Interleaved 2 of 5 is a linear symbology that is most often used for encoding large amounts of information in a small area. Characters are paired together using bars to represent the first character and spaces to represent the second. Interleaved 2 of 5 bar code applications are mainly seen in the electronics and manufacturing areas

Inventory Control
Applications where bar coding and other forms of AIDC are used to add or delete items from inventory with 100% accuracy

IrDa
Infrared Data Association – a trade association; (2) A scanning technology that utilizes electromagnetic radiation wavelengths longer than those of visible light and shorter than those of microwaves

K-W
A hardware device or software program (Software Wedge) which uses a scanner for input and sends data directly into an application by emulating a keyboard stroke. A wedge (hardware wedge) is an external device and plugs between the keyboard and terminal

KBW
A hardware device or software program (Software Wedge) which uses a scanner for input and sends data directly into an application by emulating a keyboard stroke. A wedge (hardware wedge) is an external device and plugs between the keyboard and terminal