| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable a user to know the contents of records which are recorded to a removable recording medium without taking out the removable recording medium from a case and setting it to a reproduction device. <P>SOLUTION: RF tags 12 and 13 for storing an index number of a removable recording medium 11 are pasted on the recording medium, and content is recorded to the recording medium by a recording device 31, and the recorded contents are accumulated for each index number of the recording medium. Then, an index number corresponding to the recorded contents that a user designates is transmitted to a recording medium searching device 21a, and an index number stored in the RF tags is read by the recording medium searching device, and then the index number thus read is compared with an index number transmitted from the recording device. Then, when there is agreement between these index numbers in the comparison, LEDs 25 and 26 for a close-contact type RFID radiate light to report the result of the comparison to the user. <P>COPYRIGHT: (C)2007,JPO&INPIT |
