| 摘要 |
PROBLEM TO BE SOLVED: To process copyright information without requiring large computing power. SOLUTION: A decoding apparatus includes: a decoding section for decoding input encoded video data and input encoded audio data; an output section for outputting video data and audio data decoded by the decoding section in accordance with an output control signal; a decoding control section for controlling the decoding section in such a manner that when the copyright information on contents containing the encoded video data and the encoded audio data is not detected, and there is a playback request, the decoding section performs decoding process for performing playback at normal speed, and when there is no playback request, the decoding section performs decoding process for detecting the copyright information at high speed; a copyright information detection section for detecting the copyright information from the audio data decoded by the decoding section; and an output control section for determining, based on the detected copyright information, whether or not the contents are authorized contents and outputting the output control signal. COPYRIGHT: (C)2007,JPO&INPIT
|
