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    • 2. 发明授权
    • Data processing apparatus and data recording media
    • 数据处理装置和数据记录介质
    • US06529506B1
    • 2003-03-04
    • US09414726
    • 1999-10-08
    • Masaya YamamotoTomoyuki NonomuraMasataka MinamiMasayuki Kozuka
    • Masaya YamamotoTomoyuki NonomuraMasataka MinamiMasayuki Kozuka
    • H04L1228
    • G11B20/00884G11B20/00086G11B20/1217
    • A data processing apparatus is provided with a data obtaining unit which receives a network signal sn on a network N and obtains distributed audio data Dau in which copyright information or the like is embedded, and a control unit which obtains information indicating a watermarking method which has been used when embedding the copyright information or the like in the audio data. The embedded information is extracted by an appropriate watermarking method according to the obtained information indicating the used watermarking method. The extracted information is again embedded in the distributed audio data Dau by using a predetermined watermarking method, and thus obtained audio data is recorded on a recording medium. Therefore, regardless of the watermarking method used for embedding the copyright information or the like in the distributed audio data Dau, the distributed audio data Dau can be appropriately reproduced by reproduction apparatuses as domestic electrical equipment, according to the embedded information.
    • 数据处理装置具有数据获取单元,该数据获取单元接收网络N上的网络信号sn,并获得其中嵌入有版权信息等的分布式音频数据Dau;以及控制单元,获取指示具有 当将版权信息等嵌入在音频数据中时被使用。 根据所获得的指示所使用的水印方式的信息,通过适当的水印方法提取嵌入信息。 所提取的信息通过使用预定的水印方法再次嵌入在分布式音频数据Dau中,并且由此获得的音频数据被记录在记录介质上。 因此,无论在分布式音频数据Dau中嵌入版权信息等的水印方式如何,根据嵌入信息,分布式音频数据Dau可以由作为家用电气设备的再现装置适当地再现。