发明名称 |
SYSTEM FOR PROCESSING COPYRIGHT PROTECTION DATA AND DISPLAY DEVICE |
摘要 |
FIELD: information technology. ^ SUBSTANCE: digital signature is verified using a signature verification method selected from a signature verification method for a digital signature having an official version type, and a signature verification method for a digital signature having a test version type and determining whether to allow display of content recorded on the recording medium based on medium type for the recording medium and signature type of the signature connected to a program and a switching procedure associated with the digital signature for each type of digital signature. This ensures both content copyright protection and efficient manufacture of commercial ROM media. ^ EFFECT: providing a copyright protection data processing system a display device. ^ 17 cl, 19 dwg |
申请公布号 |
RU2455685(C2) |
申请公布日期 |
2012.07.10 |
申请号 |
RU20090135397 |
申请日期 |
2008.02.22 |
申请人 |
PANASONIK KORPOREHJSHN |
发明人 |
JAMAGUTI TAKAKHIRO;JAMAMOTO MASAJA;UGAVA SANZO;NAKANO TOSIKHISA;MURASE KAORU |
分类号 |
G06F21/10;G06F21/60;G06F21/64;G11B20/10;G11B20/12;H04L9/32;H04N5/765;H04N5/93;H04N7/167;H04N7/173;H04N21/433;H04N21/442;H04N21/835 |
主分类号 |
G06F21/10 |
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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