1、INCITS/ISO/IEC 7811-7-2004 (ISO/IEC 7811-7:2004, IDT) Identification cards Recordingtechnique Part 7: Magnetic stripe High coercivity, high densityINCITS/ISO/IEC 7811-7-2004(ISO/IEC 7811-7:2004, IDT)Copyright American National Standards Institute Provided by IHS under license with ANSI Not for Resal
2、eNo reproduction or networking permitted without license from IHS-,-,-INCITS/ISO/IEC 7811-7-2004 ii ITIC 2005 All rights reserved PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless
3、 the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark o
4、f 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-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 t
5、he unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. Adopted by INCITS (InterNational Committee for Information Technology Standards) as an American National Standard. Date of ANSI Approval: 11/16/2005Published by American Nation
6、al Standards Institute, 25 West 43rd Street, New York, New York 10036 Copyright 2005 by Information Technology Industry Council (ITI). All rights reserved. These materials are subject to copyright claims of International Standardization Organization (ISO), International Electrotechnical Commission (
7、IEC), American National Standards Institute (ANSI), and Information Technology Industry Council (ITI). Not for resale. No part of this publication may be reproduced in any form, including an electronic retrieval system, without the prior written permission of ITI. All requests pertaining to this sta
8、ndard should be submitted to ITI, 1250 Eye Street NW, Washington, DC 20005. Printed in the United States of America Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-INCITS/ISO/IE
9、C 7811-7-2004 ITIC 2005 All rights reserved iii Contents Page Foreword .v Introduction .vi 1 Scope 1 2 Conformance 1 3 Normative references .2 4 Terms and definitions 2 5 Physical characteristics of the identification card .4 5.1 Magnetic stripe area warpage5 5.2 Surface distortions.5 6 Physical cha
10、racteristics of the magnetic stripe .6 6.1 Height and surface profile of the magnetic stripe area 6 6.2 Surface roughness .8 6.3 Adhesion of stripe to card .8 6.4 Wear of magnetic stripe from read/write head .8 6.5 Resistance to chemicals 8 7 Performance characteristics for the magnetic material .8
11、7.1 General .8 7.2 Testing and operating environment 8 7.3 Signal amplitude requirements for magnetic media 9 8 Encoding technique . 11 9 Encoding specification 12 9.1 Angle of recording . 12 9.2 Nominal bit density 12 9.3 Flux transition spacing variation 12 9.4 Signal amplitude requirements . 13 9
12、.5 Bit configuration 13 9.6 Direction of recording 13 9.7 Leading and trailing clock bits 13 10 Data structure . 13 10.1 Track format . 14 10.2 Coding for error detection and correction 16 11 Decoding 18 12 Location of encoded tracks . 19 Annex A (informative) Read compatibility of magnetic stripes
13、(ISO/IEC 7811-6 and ISO/IEC 7811-7) . 21 Annex B (normative) Signal amplitude measurements . 22 Annex C (informative) Magnetic stripe abrasivity 23 Annex D (informative) Static magnetic characteristics . 24 Annex E (informative) Reed-Solomon code references 27 Copyright American National Standards I
14、nstitute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-INCITS/ISO/IEC 7811-7-2004 iv ITIC 2005 All rights reserved Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo rep
15、roduction or networking permitted without license from IHS-,-,-INCITS/ISO/IEC 7811-7-2004 ITIC 2005 All rights reserved v Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardizatio
16、n. 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 collaborate in fields of mutual i
17、nterest. 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 Standards are drafted in accordance w
18、ith 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. Publication as an International Standard r
19、equires 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 patent rights. ISO/IEC 7811-7 was p
20、repared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 17, Cards and personal identification. ISO/IEC 7811 consists of the following parts, under the general title Identification cards Recording technique: Part 1: Embossing Part 2: Magnetic stripe Low coercivity
21、Part 6: Magnetic stripe High coercivity Part 7: Magnetic stripe High coercivity, high density Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-INCITS/ISO/IEC 7811-7-2004 vi ITIC
22、2005 All rights reserved Introduction This edition is new and was prepared by JTC 1/SC 17/WG1 Physical characteristics and test methods for ID cards. Portions of this International Standard are identical to ISO/IEC 7811-2 and ISO/IEC 7811-6, however the user is encouraged to review the entire Intern
23、ational Standard. The major differences between this International Standard and ISO/IEC 7811-2 and ISO/IEC 7811-6 are listed below. 1. The bit density has increased from 8,27 bits/mm (track 1,3) and 2,95 bits/mm (track 2) to 40 bits/mm for all tracks which results in 234 bytes of user data per track
24、 for an ID-1 size card. 2. The encoding technique referred to as MFM is used in place of F2F. This change doubles the data storage density for the same minimum transition spacing with only a small reduction in the self-clocking ability. 3. The 3 tracks have been replaced by 6 tracks that are approxi
25、mately half the width so that they occupy the same space on the card. These are located so that readers designed to read the high density tracks will also be able to read cards conforming to ISO/IEC 7811-2 and ISO/IEC 7811-6. 4. Data is distributed in frames with synchronisation characters to aid in
26、 error recovery, and there is a CRC for each frame and a track CRC. Data recorded on each track is independent from other tracks (error detection and correction for each track is on the same track), even though it may be only part of the message on the card. 5. Error detection and correction is incl
27、uded using a shortened Reed-Solomon code. The amount of error correction is fixed for all card sizes. 6. The magnetic stripe area extends completely to the left and right edge of the card. 7. In Table 1, test density values have changed, the resolution requirement has changed from 0,7 to 0,8, the te
28、st for Waveform has been deleted, and Overwrite has been added to the requirements. 8. The maximum coercivity in Table D.1 of informative Annex D has been changed from 335 kA/m (4200 Oe) to 250 kA/m (3125 Oe). Notes in this International Standard are only used for giving additional information inten
29、ded to assist in the understanding or use of the standard and do not contain provisions or requirements to which it is necessary to conform in order to be able to claim compliance with this standard. Copyright American National Standards Institute Provided by IHS under license with ANSI Not for Resa
30、leNo reproduction or networking permitted without license from IHS-,-,-AMERICAN NATIONAL STANDARD INCITS/ISO/IEC 7811-7-2004 ITIC 2005 All rights reserved 1 Identification cards Recording technique Part 7: Magnetic stripe High coercivity, high density 1 Scope This part of ISO/IEC 7811 is one of a se
31、ries of standards describing the characteristics for identification cards as defined in the definitions clause and the use of such cards for international interchange. This part of ISO/IEC 7811 specifies requirements for a high coercivity magnetic stripe (including any protective overlay) on an iden
32、tification card, the encoding technique and coded character sets. It takes into consideration both human and machine aspects and states minimum requirements. Coercivity influences many of the quantities specified in this part of ISO/IEC 7811 but is not itself specified. The main characteristic of th
33、e high coercivity magnetic stripe is its improved resistance to erasure. This is achieved with minimal probability of damage to other magnetic stripes by contact while retaining read compatibility with magnetic stripes as defined in ISO/IEC 7811-2. This standard provides for a card capacity of appro
34、ximately 10 times that of a card conforming to ISO/IEC 7811-6. The number of tracks has been increased to 6, each track being approximately half the width of tracks conforming to ISO/IEC 7811-6, located so that readers designed to read these high density tracks will also be able to read cards confor
35、ming to ISO/IEC 7811-2 and ISO/IEC 7811-6. Data is encoded in 8 bit bytes using the MFM encoding technique. Data framing is used to limit error propagation and error correction techniques further improve reliability of reading. It is the purpose of this series of standards to provide criteria to whi
36、ch cards shall perform. No consideration is given within these standards to the amount of use, if any, experienced by the card prior to test. Failure to conform to specified criteria should be negotiated between the involved parties. ISO/IEC 10373-2 specifies the test procedures used to check cards
37、against the parameters specified in this part of ISO/IEC 7811. NOTE Numeric values in the SI and/or Imperial measurement system in this part of ISO/IEC 7811 may have been rounded off and therefore are consistent with, but not exactly equal to, each other. Either system may be used, but the two shoul
38、d not be intermixed or reconverted. The original design was made using the Imperial measurement system. 2 Conformance A prerequisite for conformance with this part of ISO/IEC 7811 is conformance with ISO/IEC 7810. An identification card is in conformance with this part of ISO/IEC 7811 if it meets al
39、l mandatory requirements specified herein. Default values apply if no others are specified. Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-INCITS/ISO/IEC 7811-7-2004 2 ITIC 200
40、5 All rights reserved 3 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO/
41、IEC 4287-1, Surface roughness Terminology Part 1: Surface and its parameters ISO/IEC 7810, Identification cards Physical characteristics ISO/IEC 10373-1, Identification cards Test methods Part 1: General characteristics tests ISO/IEC 10373-2, Identification cards Test methods Part 2: Cards with magn
42、etic stripes 4 Terms and definitions For the purposes of this part of ISO/IEC 7811, the terms and definitions given in ISO/IEC 7810 and the following apply. 4.1 primary standard set of reference cards established and maintained by Physikalisch-Technische Bundesanstalt (PTB) that represent the values
43、 of UR and IR designated RM7811-7 4.2 secondary standard reference card designated RM7811-7 that is related to the primary standard as stated in the calibration certificate supplied with each card NOTE Secondary standards can be ordered from Physikalisch-Technische Bundesanstalt (PTB), AG. 2.52 - Bu
44、ndesallee 100, D-38116 Braunschweig, Germany. The source of secondary standards will be maintained at least until 2005. 4.3 unused un-encoded card card possessing all the components required for its intended purpose, which has not been subjected to any personalization or testing operation, and which
45、 has been stored in a clean environment with no more than 48 hour exposure to day-light at temperatures between 5 C to 30 C and humidity between 10 % to 90 % without experiencing thermal shock 4.4 unused encoded card card according to 4.3 that has only been encoded with all the data required for its
46、 intended purpose (e.g. magnetic encoding, embossing, electronic encoding) 4.5 returned card card according to 4.4 after it has been issued to the card holder and returned for the purpose of testing 4.6 flux transition location of the greatest rate of change with distance of the magnetization Copyri
47、ght American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-INCITS/ISO/IEC 7811-7-2004 ITIC 2005 All rights reserved 3 4.7 reference current IR minimum recorded current amplitude under the given
48、test conditions that causes, on the reference card, a readback signal amplitude equal to 80 % of the reference signal amplitude UR, at a density of 20 flux transitions per millimetre (508 flux transitions per inch) as shown in Figure 6 4.8 reference flux level FR flux level in the test head that corresponds to the reference current I R 4.9 test recording currents two recording currents defined by: I min = Recording current corresponding to 2,2 FR I max = Recording current corresponding to 2,5 FR 4.10 individual signal amplitude Ui base-to-peak amplitude of a single readback voltage
