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INFORMATION RECORDING MEDIUM, DATA RECORDING METHOD, TRUTH OR FALSEHOOD DECIDING METHOD AND CERTIFIED CODE GENERATING METHOD
INFORMATION RECORDING MEDIUM, DATA RECORDING METHOD, TRUTH OR FALSEHOOD DECIDING METHOD AND CERTIFIED CODE GENERATING METHOD
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机译:信息记录介质,数据记录方法,真假判定方法和认证代码生成方法
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摘要
PURPOSE:To optically read data and to provide suitable data against falsification of data by arranging an optically writable/readable rewritable recording part and an electrically writable/readable semiconductor recording part on an upper surface of a base. CONSTITUTION:An information recording medium 1 is formed by arranging an optically writable/readable rewritable recording part 12 and an electrically writable/readable semiconductor recording part 13 on an upper surface of a base 2. The part 12 is formed by sequentially laminating an anchor layer 6, a reversible heat-sensitive recording layer 5 and a protective layer 7 on the upper surface of the base 2. On the other hand, the part 13 is formed by electrically connecting a microprocessor and a memory to a recess formed partly on the base 2 and engaging with an IC module having an external connection terminal 9. Rewritable data such as an amount, etc., and a certified code X are recorded on the part 12. Further, an intrinsic ID code 3 is recorded on the part 13.
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