Indicating [n: Or Preventing] Prior Or Unauthorized Use, [n: E.g. Cassettes With Sealing Or Locking Means, Write-protect Devices For Discs (write-protect Devices For Tapes G9b/23.051, G9b/23.064; Dummy Cassettes For Locking In The Drive G9b/33.001)] {g11b 23/28} Patents (Class G9B/23.087)

Disklike recording media, a method for detecting forged disks, an anti-forgery system for performing a true-false judgement based on information collected from the recording media, and a manufacturing apparatus for recording information in the disks

Publication number: 20100034063

Abstract: A recording medium includes first information selected from a plurality of information patterns and second information selected from another plurality of information patterns for the true-false judgement. A true-false judging device performs a statistic analysis when any coincidence is found between the readout combination of the first and second information and registered combination patterns, to identify an inspected recording medium as a forged product based on the result of the statistic analysis.

Type: Application

Filed: October 16, 2009

Publication date: February 11, 2010

Applicant: Victor Company of Japan, Ltd.

Inventor: Tetsuya Kondo

Disklike recording media, a method for detecting forged disks, an anti-forgery system for performing a true-false judgement based on information collected from the recording media, and a manufacturing apparatus for recording information in the disks