POSITION DETECTION DEVICE, POSITION DETECTION METHOD, POSITION DETECTION CONTROL DEVICE, POSITION DETECTION CONTROL METHOD, POSITION DETECTION CONTROL PROGRAM, ACCESS AUTHENTICATION DEVICE, ACCESS AUTHENTICATION METHOD, ACCESS AUTHENTICATION CONTROL DEVICE, ACCESS AUTHENTICATION CONTROL METHOD, ACCESS AUTHENTICATION CONTROL

摘要

There are provided a position detection device, a position detection method, a position detection control device, a position detection control method, a position detection control program, an access authentication device, an access authentication method, an access authentication control device, an access authentication control method, an access authentication control program, an information storage device, and an optical disc capable of preventing unauthorized copying of information recorded on an information medium. An information recording/reproduction device detects the position of an RFID tag, which is arranged on an optical disc, on the optical disc and writes the detected position of the RFID tag on the optical disc as position information in the RFID tag.