1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1556:1998 The Europ
2、ean Standard EN 1556:1998 has the status of a British Standard ICS 01.090.35; 35.040 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Bar coding TerminologyThis British Standard, having been prepared under the direction of the DISC Board, was published under the authority of th
3、e Standards Committee and comes into effect on 15 December 1998 BSI 1998 ISBN 0 580 29913 9 BS EN 1556:1998 Amendments issued since publication Amd. No. Date Text affected National foreword This British Standard is the English language version of EN 1556:1998. The UK participation in its preparation
4、 was entrusted to Technical Committee IST/34, Bar coding, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related internation
5、al and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in th
6、e BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are re
7、sponsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 23 and a back cover.CEN European Committee for Standardi
8、zation Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1556:1998 E EUROPEAN STANDARD EN 1556 NORME E
9、UROPE ENNE EUROPA ISCHE NORM March 1998 ICS 01.090.35; 35.040 Descriptors: data processing, character recognition, optical recognition, bar codes, vocabulary English version Bar coding Terminology Codes a barres Terminologie Strichcodierung Terminologie This European Standard was approved by CEN on
10、28 February 1998. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards ma
11、y be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Cen
12、tral Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingd
13、om.Page 2 EN 1556:1998 BSI 1998 Foreword This European Standard has been prepared by Technical Committee CEN/TC 225, Bar coding, the Secretariat of which is held by NNI. Organizations contributing to the development of the standard include: AIM Europe International Article Numbering Association EAN
14、This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 1998, and conflicting national standards shall be withdrawn at the latest by September 1998. According to the CEN/CENELEC Internal Regulat
15、ions, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the Uni
16、ted Kingdom. Contents Page Foreword 2 Introduction 3 1 Scope 3 2 Normative references 3 3 Definitions of terms 3 Annex A (informative) Maintenance 18 Annex B (informative) Tri-lingual cross-reference 18Page 3 EN 1556:1998 BSI 1998 Introduction CEN Technical Committee 225 is responsible for a series
17、of European Standards and Pre-standards covering both technical and applications aspects of bar code technology. Many of these standards use specialist technical and other terms and this standard defines a number of terms which may be encountered in more than one standard or in bar coding standards
18、produced by other organizations, with the aim of encouraging consistency of usage and reducing the risk of ambiguity or misunderstanding. 1 Scope This European Standard defines a number of technical and other terms applicable to bar code technology, which are used in the standards produced by CEN TC
19、225 and may be encountered elsewhere in bar coding standards produced by other organizations. Definitions given are in the context of bar coding and the terms so defined may customarily have a wider meaning than that shown in this standard. Translations of the terms defined into the two other offici
20、al languages of CEN are also shown to facilitate cross-reference. 2 Normative references This European Standard incorporates by dated or undated references provisions from other publications. These normative references are cited at appropriate places in the text and the publications are listed herea
21、fter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. ISO 646, Information technology ISO
22、7-bit coded character set for information interchange. ISO 8859, Information processing 8-bit single-byte coded graphic character sets. 3 Definitions of terms 3.1 algorithm a set of steps to be taken to effect a desired calculation. French = algorithme German = Algorithmus 3.2 alphanumeric alphabeti
23、c and numeric including punctuation marks. French = alphanume rique German = alphanumerisch 3.3 aperture the opening in an optical device, such as a scanner, photometer, or camera, which determines its field of view. Most apertures are circular, but they may be rectangular or elliptical. French = ou
24、verture German = Blende 3.4 application standard specification defining the method by which and conditions under which bar code technology may be applied to a particular purpose, prescribing, for example, data formats, optical requirements and symbology-related parameters as subsets of the range def
25、ined by relevant technical standards. French = norme dapplication German = Anwendungsstandard 3.5 ASCII American Standard Code for Information Interchange: a computer code, as described in ISO 646, consisting of 128 alphanumeric and control characters, each encoded with 7 bits (8 including parity ch
26、eck), used for the exchange of information between computerized systems. French = ASCII German = ASCII 3.6 autodiscrimination the ability of a bar code reader to distinguish automatically between two or more symbologies. French = autodiscrimination German = Autodiskrimination 3.7 auxiliary character
27、 a non-data character e.g. start character, stop character, centre pattern, delineator pattern, latch character, mode indicator, shift character, code subset change characters, and function characters. See overhead. French = caracte re auxiliaire German = Hilfszeichen 3.8 background the light area b
28、etween and surrounding the dark elements of a printed symbol. The background can be the substrate on which the symbol is printed or an over-printing of a suitable light colour. French = arrie re-plan German = HintergrundPage 4 EN 1556:1998 BSI 1998 3.9 bar any of the dark lines in a printed bar code
29、 symbol. French = barre German = Strich 3.10 bar code an array of parallel rectangular bars and spaces arranged according to the encodation rules of a particular symbol specification in order to represent data in machine readable form. French = code a barres German = Strichcode 3.11 bar code charact
30、er see symbol character. French = caracte re de code a barres German = Strichcodezeichen 3.12 bar code density (symbol density) the number of characters that can be represented in a bar code symbol per unit of measure, usually expressed as characters per inch (cpi) or per centimetre for linear bar c
31、odes and per square inch or per square centimetre for multi-row symbologies. The width of the narrowest bar or space, the wide to narrow ratio, the number of bars and spaces per character and the width of the intercharacter gap, if any, are the controlling factors. French = densite du code a barres
32、German = Strichcodedichte 3.13 bar code master the original film or other image of a bar code symbol, produced to close tolerances and intended for reproduction by conventional printing processes (e.g. for incorporation in a printed packaging design). French = code a barres de base German = Strichco
33、de-Master 3.14 bar code reader a device used to capture the data encoded in a bar code symbol. It consists of two parts: a) the scanner, an input device which sends signals proportional to the reflectivity of each successive element of the symbol to the decoder, and b) the decoder, which examines th
34、e signals from the scanner and translates them into recognizable or computer-compatible data. The decoder itself is sometimes erroneously called a reader. French = lecteur de code a barres German = Strichcode-Lesegera t 3.15 bar code symbol the combination of symbol characters and features required
35、by a particular symbology, including quiet zones, start and stop characters, data characters, check characters and other auxiliary patterns, which together form a complete scannable entity. French = symbole de code a barres German = Strichcodesymbol 3.16 bar height the dimension of the individual ba
36、rs in a linear bar code symbol or in a row of a multi-row bar code symbol, measured perpendicular to the scanning direction. See also Y dimension. French = hauteur de barre German = Strichho he 3.17 bar width the transverse dimension of an individual bar in a bar code symbol, measured parallel to th
37、e scanning direction. The number of possible width variations within a particular printed symbol depends on the symbology used. French = largeur de barre German = Strichbreite 3.18 bar width gain/loss see print gain/loss. French = gain/perte de la largeur de barre German = Strichbreitenzuwachs/-verl
38、ust 3.19 bar width reduction/increase the extent by which the width of the bars on the bar code master is reduced/increased in order to correct for expected print gain/loss. French = re duction/augmentation de la largeur de barre German = Strichbreitenverringerung/-vergro erung 3.20 bearer bar a bar
39、 abutting the tops and bottoms of the bars in a bar code symbol, or a frame surrounding the entire symbol, intended to equalize the pressure exerted by the printing plate over the entire surface of the symbol, and/or to prevent a short scan by the bar code reader. French = barre porteuse German = Tr
40、a gerbalken/Tra gerstrichPage 5 EN 1556:1998 BSI 1998 3.21 bi-directional in two directions viz. backwards and forwards. Denoting that a bar code symbol can be read successfully either backwards or forwards. Denoting a scanner that can operate successfully either backward or forwards. French = bi-di
41、rectionnel German = bi-direktional 3.22 binary denoting a numbering system to base 2 in which numbers are expressed as combinations of the digits 0 and 1, with positional weighting based on powers of 2. In computing these can be represented electrically by “off” and “on” respectively, or in bar code
42、s by narrow and wide elements or by the absence or presence of a bar module. French = binaire German = bina r 3.23 binary coded decimal (BCD) a method of representing decimal numbers in binary code as groups of four bits, with weighting values 8, 4, 2, 1 reading from left to right, each group repres
43、enting one decimal digit, for example 0010 0011 for 23. French = de cimal code binaire (BCD) German = bina r verschlu sselte Dezimalziffern (BCD) 3.24 binary symbology see two-width symbology. French = syste me de symbolisation binaire German = bina re Symbologie 3.25 BIT abbreviation for binary dig
44、it. 1) A single element (0 or 1) in a binary number. 2) A unit of information capacity in a binary storage device. French = BIT German = BIT, Bina rzeichen 3.26 CCD (charge-coupled device) an electronic light-sensitive component used in a linear or two-dimensional array as the light-collecting eleme
45、nt in certain types of bar code reader. French = CCD dispositif a couplage de charge German = CCD Charge-Coupled Device 3.27 character see character set, data character, symbol character, human readable character. French = caracte re German = Zeichen 3.28 character set the total range of letters, nu
46、mbers, and symbols that can be encoded in a particular symbology. See code page, code set. French = jeu de caracte res German = Zeichensatz 3.29 check digit/character a digit or character calculated from other characters in a code by means of a defined algorithm and used to check that the code is co
47、rrectly composed. See symbol check character, data check character/digit. French = caracte re de contro le/cle de contro le German = Pru fziffer/Pru fzeichen 3.30 clear area see quiet zone. French = zone de repos German = Hellzone 3.31 closed application environment (system) an application which is
48、intended for use by a closed group of users, typically within a single organization or subject to a specific agreement. Compare open application environment. French = syste me ferme German = geschlossene Anwendungsumgebung 3.32 closed system see closed application environment. French = syste me ferm
49、e German = geschlossenes System 3.33 code page a table showing the character allocated to each byte value in a coded character set. French = page de code German = CodiertabellePage 6 EN 1556:1998 BSI 1998 3.34 code set a subset of the character set of a particular symbology. See character set. French = jeu de code German = spezifischer Zeichensatz 3.35 coded character set a set of unambiguous rules establishing a character set and the relationship between the characters of the s
