发明名称 |
Transmitter, signal transfer method, data distribution system and method of same, data receiver, data provider and method of same, and data transfer |
摘要 |
<p>To enable usage of content at a receiver which does not have a copying function even if copyright protection is provided. Model names of receivers not having a function enabling copying of content are held in an authentication processing circuit (151) of a transmitter (10). When a model name obtained from a connected receiver (40) is held, regardless of whether the content is copyright protected, a signal selection circuit (122) selects a terminal a side, a switch (123) is turned on, and an unencrypted signal is transmitted. When a change of the receiver (40) is detected by a hot plug detection function or a plug and play function at a processing circuit (152) during the transfer of a signal of copyright protected content without providing copyright protection, the selection circuit (122) is made to select a terminal b side or the switch (123) is turned off to suspend the transfer of the non-copyright protected signal. The information indicating the receiver is held in a tamper-proof updateable manner. <IMAGE></p> |
申请公布号 |
EP2290944(B1) |
申请公布日期 |
2014.08.13 |
申请号 |
EP20100179527 |
申请日期 |
2001.03.30 |
申请人 |
SONY CORPORATION |
发明人 |
KORI, TERUHIKO;FUJII, ASAKO |
分类号 |
H04N5/00;H04N7/16 |
主分类号 |
H04N5/00 |
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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