发明名称 |
Method for transmitting digital data and record medium |
摘要 |
<p>A data transmitting apparatus, which disallows encryption to be easily decoded and enhances the secrecy of key information, includes an error correction coding process block (13). In the block (13), an input converting circuit (14) performs a logic operation with respect to information data from an interface circuit (12) according to key data. The converted information data is sent to an encoder (15) for generating parity data. The parity data is mixed (16) with the information data before conversion. The error correction coding block (13) sends the resulting data to a modulating circuit (17) for modulating the data. The modulated data is recorded on a disk record medium (20). <IMAGE></p> |
申请公布号 |
EP1143443(A2) |
申请公布日期 |
2001.10.10 |
申请号 |
EP20010201580 |
申请日期 |
1996.07.12 |
申请人 |
SONY CORPORATION |
发明人 |
SAKO, YOICHIRO;OSAWA, YOSHIMOTO;KURIHARA, AKIRA;KAWASHIMA, ISAO;OWA, HIDEO |
分类号 |
G06F1/00;G11B20/00;G11B20/18;(IPC1-7):G11B20/18 |
主分类号 |
G06F1/00 |
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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