发明名称 Apparatus for reproduction song data with limitation dependent on preview or purchase
摘要 A song data reproduction apparatus has a storage for song data composed of performance data and order information. The performance data represents a content of a music performance and contains reproduction limiting information for limiting a reproduction state of the music performance. The order information indicates either of a purchase or a preview associated to a usage right of the content of the music performance. A usage right identification section refers to the order information of the song data containing the performance data to be reproduced, for identifying the usage right of the content of the music performance in terms of the purchase or preview. A limiting information read section reads the reproduction limiting information from the performance data when the identified usage right indicates the preview. A reproduction control section controls the reproduction state of the music performance in accordance with the read reproduction limiting information.
申请公布号 US7958054(B2) 申请公布日期 2011.06.07
申请号 US20040765332 申请日期 2004.01.26
申请人 YAMAHA CORPORATION 发明人 IKEDA TAKASHI;HIRATSUKA SATOSHI
分类号 G06F21/00;G06F21/10;G06Q50/00;G06Q50/10;G10H1/00;G10K15/02 主分类号 G06F21/00
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