发明名称 |
Method for simulcrypting scrambled data to a plurality of conditional access devices |
摘要 |
In accordance with one embodiment, a method for storing a normal scrambled digital program is provided. The method includes receiving a scrambled program, and receiving a plurality of access requirements. Each access requirement can descramble the scrambled program. The method also includes selecting at least one of the access requirements, and storing the scrambled program and the selected requirement.
|
申请公布号 |
US7702589(B2) |
申请公布日期 |
2010.04.20 |
申请号 |
US20020209341 |
申请日期 |
2002.07.30 |
申请人 |
SONY CORPORATION;SONY ELECTRONICS INC. |
发明人 |
CANDELORE BRANT L. |
分类号 |
G06F17/00;G06F21/00;G11B20/00;H04N5/765;H04N5/775;H04N5/913;H04N7/16;H04N7/167 |
主分类号 |
G06F17/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|