METHOD FOR ENCODING CODED INFORMATION AND DECODER

摘要

PROBLEM TO BE SOLVED: To make user's convenience compatible with copyright protection in the case of copying a digital signal. SOLUTION: A high-quality digital signal AD-converted in 24 bits is DA- converted by a DA-converter 45 into an analog signal to be outputted via an output terminal 55. Moreover, the high-quality digital signal is outputted via an output terminal 90 with a copyright data on the data added thereto. COPYRIGHT: (C)2003,JPO