发明名称 |
Digital recording and reproducing system with copy protection |
摘要 |
A digital recording/reproducing system includes a set top box. The STB receives a digital television broadcast signal and transmits a scrambled data stream from a stream selector via an interface to a digital recording/reproducing apparatus. In the data recording/reproducing apparatus, a scramble key is acquired depending on a billing request for data recording. To AS-MO disc are recorded a contents key converted from a disc unique ID using a descramble key as well as the data stream. In accordance with a user's approval for the billing, an account table is created which is registered in an IC card and transmitted via a MODEM and telephone line. <IMAGE> |
申请公布号 |
EP0954173(B1) |
申请公布日期 |
2003.07.02 |
申请号 |
EP19990108155 |
申请日期 |
1999.04.26 |
申请人 |
SANYO ELECTRIC CO., LTD. |
发明人 |
HIOKI, TOSHIAKI;MATSUYAMA, HISASHI |
分类号 |
H04N5/91;G06F21/10;G11B20/00;G11B20/10;H04N5/781;H04N5/85;H04N5/913;H04N5/92;H04N21/418;H04N21/433;H04N21/462 |
主分类号 |
H04N5/91 |
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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