标准摘要
[中文适用范围]： 本技术报告整理了 PCD 领域存在多个 PICC 所产生的技术问题的行业经验。 它描述了谐振频率如何变化、各个 PICC 如何看到场强降低、多个 PICC 如何加载 PCD、它们如何改变本地调制信号以及 PICC 应如何管理其身份以帮助支持同时使用。 探索了具有多种签证的电子护照和包含多行业卡的钱包的场景。 [外文原描述]： ISO/IEC TR 18268:2013 presents a collation of industry experience of technical issues resulting from the presence of multiple PICCs (proximity card or object) in the field of a PCD (proximity coupling device). It describes how resonance frequencies may shift, how individual PICCs may see a reduced field strength, how multiple PICCs load the PCD, how they may change the local modulation signal and how PICCs should manage their identities to aid support of simultaneous usage. Scenarios for electronic passports with multiple visas and wallets containing multi-industry cards are explored.
英文名称Identification cards - Contactless integrated circuit cards - Proximity cards - Multiple PICCs in a single PCD field