| 摘要 |
PROBLEM TO BE SOLVED: To easily and securely grasping the sales condition of a product (a disk-shaped storage medium) and the product management such as antitheft without troubling a person, and, furthermore, to transfer various information for guaranteeing not only the information on the product management but also the prevention of illegal copy and reading or the like. SOLUTION: In a disk-shaped storage medium 1, a non-contact-type data carrier (RF-ID) 2 for transferring electromagnetic wave information in a non- contact state is buried into a transparent substrate 11. The non-contact-type data carrier 2 is provided with an antenna circuit 21 and an LSI silicon chip 22 where various kinds of circuits are mounted. Also, the RF-ID 2 may be provided on the non-storage surface of the transparent substrate 11. |
