ISO_IEC 7811-7-2004 识别卡.记录技术.第7部分_磁条.高矫顽力、高密度.pdf

标准号：ISO/IEC 7811-7-2004
实施状态：作废
中文名称：识别卡.记录技术.第7部分:磁条.高矫顽力、高密度
英文名称：Identification cards - Recording technique - Part 7: Magnetic stripe - High coercivity, high density
发布日期：2004-07
被替代标准：ISO/IEC 7811-7-2014
代替标准：ISO/IEC FDIS 7811-7-2004
采用标准：ANSI/INCITS/ISO/IEC 7811-7-2004,IDT;CAN/CSA-ISO/IEC 7811-7-05-2005,IDT
起草单位：ISO/IEC JTC 1/SC 17
标准简介：This part of ISO/IEC 7811 is one of a series 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 identification 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 the 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 approximately 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 conforming 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 which 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 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 should not be intermixed or reconverted. The original design was made using the Imperial measurement system.
文件格式：PDF
文件大小：394.10KB
文件页数：32
（以上信息更新时间为：2019-11-22）



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