发明名称 Article management method and article management system
摘要 The object of the present invention is to provide an article management method by which detecting the location of an object is performed easily and introduction costs for detecting the location of an object are suppressed. The article management method includes a first RF chip attached to an article, a first reader/writer into which a shared memory portion and a second RF chip are incorporated, and a second reader/writer. The first reader/writer obtains information stored in the first RF chip, the shared memory portion retains the obtained information about the first RF chip, the second RF chip reads out that information about the first RF chip stored in the shared memory portion, the second reader/writer, by the second RF chip, obtains the information about the first RF chip and information stored in the second RF chip and information about the location of the second RF chip.
申请公布号 US2008074237(A1) 申请公布日期 2008.03.27
申请号 US20070902717 申请日期 2007.09.25
申请人 SEMICONDUCTOR ENERGY LABORATORY CO., LTD. 发明人 KUROKAWA YOSHIYUKI
分类号 H04B7/00 主分类号 H04B7/00
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