COPYRIGHT PROTECTING DEVICE AND COMPUTER-READABLE STORAGE MEDIUM

摘要

PROBLEM TO BE SOLVED: To protect the copyright of digital contents by detecting that the digital contents illegally are altered in such a case. SOLUTION: An illegality detecting device 1002 detects whether or not the digital contents are illegally processed and inputs the digital contents from a storage device 1001 to an arithmetic processing unit 1004 by switching a switch 1003 when the digital contents are illegally processed. The arithmetic processing unit 1004 outputs the digital contents after filter processing, etc., to prevent the normal digital contents from being obtained.