发明名称 |
RECEIVER AND RECEIVING METHOD |
摘要 |
By deciding procedures for downloading content data and downloading key information, a safe service is provided for a content distributor and a method which can start playback before completion of the downloading of the content data is provided, thereby providing a technique easy for a user. A receiver has: an interface unit being adapted to download encoded content data and key information for decoding the content data from a communication line; a storage unit being adapted to store the downloaded content data and key information from the interface unit; and a control unit which decodes the content data outputted from the storage unit using the key information. The control unit downloads the key information after the content data is downloaded entirely. |
申请公布号 |
EP2178298(B1) |
申请公布日期 |
2014.09.24 |
申请号 |
EP20080721272 |
申请日期 |
2008.03.04 |
申请人 |
HITACHI CONSUMER ELECTRONICS CO. LTD. |
发明人 |
MIO, SATOSHI;KOREEDA, HIROYUKI |
分类号 |
H04N21/6334;G09C1/00;H04L9/08;H04N7/167;H04N7/173;H04N21/266;H04N21/432;H04N21/433;H04N21/4623;H04N21/472;H04N21/61 |
主分类号 |
H04N21/6334 |
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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