发明名称 |
Information providing device and method |
摘要 |
An authentication function authenticates a PDA. The content database holds the usage conditions of a content and the information about the content. The communication function controls the reception of the usage conditions and the content information, both transmitted from the PDA. The content management function updates the usage conditions and the content information received, on the basis of the usage conditions and the content information held. The desired content is thereby retrieved quickly.
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申请公布号 |
US7272859(B2) |
申请公布日期 |
2007.09.18 |
申请号 |
US20020048164 |
申请日期 |
2002.05.06 |
申请人 |
SONY CORPORATION |
发明人 |
KURIYA SHINOBU;KURIHARA AKIRA |
分类号 |
G06F11/14;G06F15/173;G06F21/00;H04L12/00 |
主分类号 |
G06F11/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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