发明名称 Information providing apparatus and method, information processing apparatus and method, and program storage medium
摘要 The present invention is intended to quickly download contents while preventing unauthorized contents usage. PD authentication program authenticates telephone-integrated terminal device. Server authentication program authenticate key server. Server LCM controls the reception of a request for data for identifying key server and a key from telephone-integrated terminal device. On the basis of the data for identifying key server, server LCM sends a request for the key to key server and receives the requested key from key server. Key distribution program sends the key to telephone-integrated terminal device.
申请公布号 US7215779(B2) 申请公布日期 2007.05.08
申请号 US20050227486 申请日期 2005.09.16
申请人 SONY CORPORATION 发明人 GO NAOMI;KURIHARA AKIRA
分类号 G06F13/00;H04L9/32;G06F21/00;G09C1/00;H04L9/00;H04L9/08;H04L12/22;H04M3/487;H04M11/08 主分类号 G06F13/00
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