发明名称 SYSTEM FOR TRACKING END-USER ELECTRONIC CONTENT USAGE
摘要 <p>A system for tracking usage of digital content on user devices. Electronic stores coupled to a network sell licenses to play digital content data to users. Content players, which receive from the network the licensed content data, are used to play the licensed content data. Additionally, a logging site that is coupled to thte network tracks the playing of the content data. In particular, the logging site receives play information from the network, and the play information includes the number of times that the content data has been played by the associated content player. Also provided is a method for tracking usage of digital content on user devices. According to the method, a license to play digital content data is sold to a user, and the licensed content data is transmitted to a content player for the user. Further, information is transmitted to a logging site whenever the content data is played by the content player or copied from the content player to an external medium so that usage of the licensed content data can be tracked.</p>
申请公布号 WO0008909(A2) 申请公布日期 2000.02.24
申请号 WO1999US18383 申请日期 1999.08.12
申请人 INTERNATIONAL BUSINESS MACHINES CORPORATION;DORAK, JOHN, JR.;DOWNS, EDGAR;GRUSE, GEORGE, GREGORY;HURTADO, MARCO;LEHMAN, CHRISTOPHER;LOTSPIECH, JEFFREY;MEDINA, CESAR;MILSTED, KENNETH 发明人 DORAK, JOHN, JR.;DOWNS, EDGAR;GRUSE, GEORGE, GREGORY;HURTADO, MARCO;LEHMAN, CHRISTOPHER;LOTSPIECH, JEFFREY;MEDINA, CESAR;MILSTED, KENNETH
分类号 G06F21/24;G06F1/00;G06F21/00;G06Q20/36;G06Q20/38;G06Q30/06;G09C1/00;G10K15/02;H03M7/30;H04L9/08;H04L9/10;H04L29/06;H04L29/08;H04N7/167;H04N7/173 主分类号 G06F21/24
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