1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-22568-1 SANS 19762-2:2009Edition 1 ISO/IEC 19762-2:2008Edition 2 SOUTH AFRICAN NATIONAL STANDARD Information technology Automatic identifi
4、cation and data capture (AIDC) techniques Harmonized vocabulary Part 2: Optically readable media (ORM) This national standard is the identical implementation of ISO/IEC 19762-2:2008, and is adopted with the permission of the International Organizational for Standardization and International Electrot
5、echnical Commission. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 19762-2:2009 Edition 1 ISO/IEC 19762-2:2008 Edition 2 Table of changes Change No. Date Scope National foreword This
6、South African standard was approved by National Committee SABS SC 71K, Information technology Automatic identification and data capture techniques, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in J
7、une 2009. Reference numberISO/IEC 19762-2:2008(E)ISO/IEC 2008INTERNATIONAL STANDARD ISO/IEC19762-2Second edition2008-06-15Information technology Automatic identification and data capture (AIDC) techniques Harmonized vocabulary Part 2: Optically readable media (ORM) Technologies de linformation Techn
8、iques automatiques didentification et de saisie de donnes (AIDC) Vocabulaire harmonis Partie 2: Mdias lisibles optiquement (ORM) SANS 19762-2:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO/IEC 19762-2:2008(E) PDF disclaimer This PDF
9、file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein t
10、he responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF
11、-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT I
12、SO/IEC 2008 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body i
13、n the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO/IEC 2008 All rights reservedSANS 19762-2:2009This s tandard may only be used and printed by appr
14、oved subscription and freemailing clients of the SABS .ISO/IEC 19762-2:2008(E) ISO/IEC 2008 All rights reserved iiiContents Page Foreword iv Introduction v 1 Scope . 1 2 Classification of entries . 1 3 Terms and definitions. 1 4 Abbreviations 17 Bibliography . 18 Index 19 SANS 19762-2:2009This s tan
15、dard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO/IEC 19762-2:2008(E) iv ISO/IEC 2008 All rights reservedForeword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized sy
16、stem for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees
17、collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. International Stan
18、dards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of the joint technical committee is to prepare International Standards. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publicati
19、on as an International Standard requires approval by at least 75 % of the national bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such pa
20、tent rights. ISO/IEC 19762-2 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 31, Automatic identification and data capture techniques. This second edition cancels and replaces the first edition (ISO/IEC 19762-2:2005), which has been technically revise
21、d. ISO/IEC 19762 consists of the following parts, under the general title Information technology Automatic identification and data capture (AIDC) techniques Harmonized vocabulary: Part 1: General terms relating to AIDC Part 2: Optically readable media (ORM) Part 3: Radio frequency identification (RF
22、ID) Part 4: General terms relating to radio communications Part 5: Locating systems SANS 19762-2:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO/IEC 19762-2:2008(E) ISO/IEC 2008 All rights reserved vIntroduction ISO/IEC 19762 is inten
23、ded to facilitate international communication in information technology, specifically in the area of automatic identification and data capture (AIDC) techniques. It provides a listing of terms and definitions used across multiple AIDC techniques. Abbreviations used within each part of ISO/IEC 19762
24、and an index of all definitions used within each part of ISO/IEC 19762 are found at the end of the relevant part. SANS 19762-2:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .SANS 19762-2:2009This s tandard may only be used and printed by
25、 approved subscription and freemailing clients of the SABS .INTERNATIONAL STANDARD ISO/IEC 19762-2:2008(E) ISO/IEC 2008 All rights reserved 1Information technology Automatic identification and data capture (AIDC) techniques Harmonized vocabulary Part 2: Optically readable media (ORM) 1 Scope This pa
26、rt of ISO/IEC 19762 provides terms and definitions unique to optically readable media (ORM) in the area of automatic identification and data capture techniques. This glossary of terms enables the communication between non-specialist users and specialists in ORM through a common understanding of basi
27、c and advanced concepts. 2 Classification of entries The numbering system employed within ISO/IEC 19762 is in the format nn.nn.nnn, in which the first two numbers (nn.nn.nnn) represent the “Top Level” reflecting whether the term is related to 01 = common to all AIDC techniques, 02 = common to all op
28、tically readable media, 03 = linear bar code symbols, 04 = two-dimensional symbols, 05 = radio frequency identification, 06 = general terms relating to radio, 07 = real time locating systems, and 08 = MIIM. The second two numbers (nn.nn.nnn) represent the “Mid Level” reflecting whether the term is r
29、elated to 01 = basic concepts/data, 02 = technical features, 03 = symbology, 04 = hardware, and 05 = applications. The third two or three numbers (nn.nn.nnn) represent the “Fine” reflecting a sequence of terms. The numbering in this part of ISO/IEC 19762 employs “Top Level” numbers (nn.nn.nnn) of 02
30、, 03, and 04. 3 Terms and definitions 02.01.01 optically readable medium ORM member of the set of automatic identification techniques such as a linear bar code, two-dimensional, mark sense, or optical character recognition (OCR) symbols, that are illuminated by a light source and examined by an opti
31、cal detector that converts the received reflectance into electrical signals that are grouped in a predetermined method, recognized by the reader and converted into the corresponding computer code 02.01.02 symbology standard means of representing data in optically machine readable form NOTE Each symb
32、ology specification sets out its particular rules of composition or symbol architecture. 02.01.03 bar code symbol combination of symbol characters and features required by a particular symbology which together form a complete scannable entity SANS 19762-2:2009This s tandard may only be used and prin
33、ted by approved subscription and freemailing clients of the SABS .ISO/IEC 19762-2:2008(E) 2 ISO/IEC 2008 All rights reserved02.01.04 symbol architecture structure of a bar code symbol NOTE See symbology. 02.01.05 bar dark element corresponding to a region of a scan reflectance profile below the glob
34、al threshold 02.01.06 quiet zone area free from interfering markings which must surround a bar code symbol and, in particular, precede the start character and follow the stop character 02.01.07 symbol character physical representation of the codeword as a pattern of dark and light elements NOTE Ther
35、e may be no direct one-to-one mapping between symbol character and data character or auxiliary character. Decoding through the compaction rules is necessary to identify the data. 02.01.08 coded character set set of single characters that are mapped onto their byte values according to a linear bar co
36、de or two dimensional symbology 02.01.09 bar code character See symbol character. 02.01.10 X dimension specified width of the narrow elements in a bar code symbol or the specified width of a single element in a two-dimensional symbol cf. Z dimension 02.01.11 Y dimension specified height of the eleme
37、nts in a linear bar code symbol or a row in a multi-row symbology cf. bar height 02.01.12 Z dimension average achieved width of the narrow elements in a bar code symbol, equal to half the sum of the average narrow bar width and the average narrow space width in two-width symbologies, or to the quoti
38、ent of the average overall character width divided by the number of modules per character in modular symbologies 02.01.13 module(1) linear or multi-row bar code symbology nominal unit of measure in a symbol character NOTE In certain symbologies, element widths may be specified as multiples of one mo
39、dule. Equivalent to X dimension. SANS 19762-2:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO/IEC 19762-2:2008(E) ISO/IEC 2008 All rights reserved 302.01.14 element symbol character or symbol single bar or space in a bar code symbol o
40、r a polygonal or circular single cell in a matrix symbol, which according to symbolgy rules form a symbol character NOTE The width of individual elements may be expressed in modules, or in multiples of the X dimension. 02.01.15 resolution width of the narrowest element capable of being read by the s
41、canner equipment under test conditions 02.01.16 bar height dimension of an individual bar in a linear bar code symbol or in a row of a multi-row bar code symbol measured perpendicular to the scanning direction cf. Y dimension 02.01.17 bar width transverse dimension of an individual bar in a linear b
42、ar code symbol or two-dimensional symbol measured parallel to the scanning direction NOTE The number of possible width variations within a particular printed symbol depends on the symbology used. 02.01.18 symbol width total width of a bar code symbol including the quiet zones NOTE Also referred to a
43、s symbol length. 02.01.19 symbol aspect ratio ratio of the symbol height to the symbol width 02.01.20 bar-space sequence sequence which represents the module widths of the elements of a symbol character 02.01.21 self-checking property of a symbology whereby a checking algorithm is applied to each ch
44、aracter in the code NOTE Substitution errors can then only occur if two or more separate printing defects occur within one character. Codes, which are not self-checking usually, have a check character added to the encoded data. Check characters can be added to self-checking symbols to further enhanc
45、e data integrity. 02.01.22 orientation pattern unique spatial arrangement of dark and light modules in a symbology used to detect the spatial orientation of the symbol 02.01.23 shift character symbology character which is used to switch from one code set to another for a single character, or in the
46、case of “double shift“ or “triple shift“ characters, for two or three characters, respectively, following which data encodation reverts automatically to the code set from which the shift was invoked SANS 19762-2:2009This s tandard may only be used and printed by approved subscription and freemailing
47、 clients of the SABS .ISO/IEC 19762-2:2008(E) 4 ISO/IEC 2008 All rights reserved02.01.24 latch character symbology character which is used to switch from one code set to another NOTE The code set stays in effect until another latch or shift character is explicitly brought into use or until the end o
48、f the symbol is reached. 02.02.01 decode algorithm set of rules used, in a bar code or matrix symbology, to convert the element pattern of a symbol to data characters 02.02.02 print quality degree to which a printed optical symbol complies with the requirements which are specified for it, such as di
49、mensions, reflectance, edge roughness, spots, voids, etc., which will affect the performance of the scanner 02.02.03 verification verification by which a symbol is measured to determine its conformance with the specification for that symbol 02.02.04 verifier device used for verification of a symbol NOTE A verifier is used to measure and analyse quality attributes of a symbol such as symbol element width and quiet zone dimensions, reflectance, and other aspects against a standard to which the linear bar cod
