发明名称 Information processing apparatus capable of receiving digital broadcast program data, and method of protecting contents which is applied to the apparatus
摘要 According to one embodiment, a digital TV tuner module (204) receives digital broadcast program data including encrypted program contents. A descrambler (413) decrypts the program contents included in the received digital broadcast program data. A encryption unit (507) encrypts the decrypted program contents by an encryption key and outputs the encrypted program contents onto a PCI bus. A revocation information storage unit (502b) stores revocation information indicating that an information processing apparatus (10) is revoked. Revocation circuits (800, 900, 940, 920, A10, A20, A30) prevents any one of a plurality of devices (4, 110, 111, 113-116) from redistributing program contents outside the information processing apparatus (10) in accordance with the revocation information stored in the storage unit (502b).
申请公布号 EP1739967(A1) 申请公布日期 2007.01.03
申请号 EP20060115758 申请日期 2006.06.20
申请人 KABUSHIKI KAISHA TOSHIBA 发明人 NISHIGAKI, NOBUTAKA
分类号 H04N5/445;H04N7/173;H04N21/433;H04N21/4363;H04N21/4367;H04N21/4408 主分类号 H04N5/445
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