【英文标准名称】:Identificationcards-Recordingtechnique-Part7:Magneticstripe-Highcoercivity,highdensity
【原文标准名称】:识别卡.记录技术.第7部分:磁条.高矫顽力、高密度
【标准号】:ISO/IEC7811-7-2004
【标准状态】:现行
【国别】:国际
【发布日期】:2004-07
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/IECJTC1/SC17
【标准类型】:()
【标准水平】:()
【中文主题词】:数据记录;记录系统;物理性能;识别卡;磁带;磁记录;磁条;数据处理;定义;银行业务;规范;信息交换
【英文主题词】:Bankoperations;Dataprocessing;Datarecording;Definition;Definitions;Identitycards;Informationinterchange;Magneticrecording;Magneticstripes;Magnetictapes;Physicalproperties;Recordingsystems;Specification
【摘要】:ThispartofISO/IEC7811isoneofaseriesofstandardsdescribingthecharacteristicsforidentificationcardsasdefinedinthedefinitionsclauseandtheuseofsuchcardsforinternationalinterchange.ThispartofISO/IEC7811specifiesrequirementsforahighcoercivitymagneticstripe(includinganyprotectiveoverlay)onanidentificationcard,theencodingtechniqueandcodedcharactersets.Ittakesintoconsiderationbothhumanandmachineaspectsandstatesminimumrequirements.CoercivityinfluencesmanyofthequantitiesspecifiedinthispartofISO/IEC7811butisnotitselfspecified.Themaincharacteristicofthehighcoercivitymagneticstripeisitsimprovedresistancetoerasure.ThisisachievedwithminimalprobabilityofdamagetoothermagneticstripesbycontactwhileretainingreadcompatibilitywithmagneticstripesasdefinedinISO/IEC7811-2.Thisstandardprovidesforacardcapacityofapproximately10timesthatofacardconformingtoISO/IEC7811-6.Thenumberoftrackshasbeenincreasedto6,eachtrackbeingapproximatelyhalfthewidthoftracksconformingtoISO/IEC7811-6,locatedsothatreadersdesignedtoreadthesehighdensitytrackswillalsobeabletoreadcardsconformingtoISO/IEC7811-2andISO/IEC7811-6.Dataisencodedin8bitbytesusingtheMFMencodingtechnique.Dataframingisusedtolimiterrorpropagationanderrorcorrectiontechniquesfurtherimprovereliabilityofreading.Itisthepurposeofthisseriesofstandardstoprovidecriteriatowhichcardsshallperform.Noconsiderationisgivenwithinthesestandardstotheamountofuse,ifany,experiencedbythecardpriortotest.Failuretoconformtospecifiedcriteriashouldbenegotiatedbetweentheinvolvedparties.ISO/IEC10373-2specifiesthetestproceduresusedtocheckcardsagainsttheparametersspecifiedinthispartofISO/IEC7811.NOTENumericvaluesintheSIand/orImperialmeasurementsysteminthispartofISO/IEC7811mayhavebeenroundedoffandthereforeareconsistentwith,butnotexactlyequalto,eachother.Eithersystemmaybeused,butthetwoshouldnotbeintermixedorreconverted.TheoriginaldesignwasmadeusingtheImperialmeasurementsystem.
【中国标准分类号】:L64
【国际标准分类号】:35_240_15
【页数】:25P;A4
【正文语种】:英语