发明名称 METHOD AND SYSTEM FOR PURCHASING BROADCAST CONTENT
摘要 <p>A system and method of making broadcast content selectively available to users in different forms, including a system for charging and collecting compensation for at least one form. Broadcast content such as digital music or other information or entertainment is sent out in a protected form and receiving devices may be provided with different keys to unlock the content for long-term storage. The receiver also includes a system for requesting additional rights (such as permanent storage and playing of the content) and for compensating for that additional set of rights. When the user's request is received with the necessary compensation, the user is provided a permission for the greater rights and a method of accessing those rights; otherwise, the content is provided in an ephemeral form and ceases to exist on the users machine.</p>
申请公布号 WO2004006474(A1) 申请公布日期 2004.01.15
申请号 WO2002GB04671 申请日期 2002.10.16
申请人 INTERNATIONAL BUSINESS MACHINES CORPORATION;IBM UNITED KINGDOM LIMITED 发明人 HUDDLESTON, BRANT;LOOSE, DAVID, CARL;NUTTAL, MARK, PATRICK
分类号 G06Q30/06;H04H60/23;H04H60/27;H04H60/37;H04H60/63;(IPC1-7):H04H1/00;H04N7/167;G06F17/60 主分类号 G06Q30/06
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