发明名称 ELECTRONIC APPARATUS
摘要 <P>PROBLEM TO BE SOLVED: To provide an electronic apparatus capable of safely processing broadcast content data of at least one system even when a copyright protection device of a master mode breaks down. <P>SOLUTION: The copyright protection device 112 of the master mode has a function of initializing an IC card 114, decrypts broadcast content data received by a tuner 110 by using information stored in the IC card 114, encrypts the decrypted broadcast content data again, and then outputs it onto a bus 108. Functions relating to initialization of the IC card 114 are restricted in a copyright protection device 113 in a slave mode. When the copyright protection device 112 in the master mode gets faulty, the operation mode of the copyright protection device 13 is changed from the slave mode to the master mode. <P>COPYRIGHT: (C)2009,JPO&INPIT
申请公布号 JP2008301078(A) 申请公布日期 2008.12.11
申请号 JP20070143670 申请日期 2007.05.30
申请人 TOSHIBA CORP 发明人 KURODA KAZUYO;HIRAYAMA NORIYUKI
分类号 H04L9/32;H04N7/167;H04N7/173;H04N21/442;H04N21/4623;H04N21/835 主分类号 H04L9/32
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