| 发明名称 |
Addressed braodcast messaging |
| 摘要 |
Signals are transmitted over a multiplexed channel for receipt by a plurality of client devices. One of the signals carries content data and another signal carries encrypted message data associated with an identifier. The message data can be output only by those client devices identified by the identifier. |
| 申请公布号 |
EP1657849(A1) |
申请公布日期 |
2006.05.17 |
| 申请号 |
EP20060002741 |
申请日期 |
2003.03.27 |
| 申请人 |
MICROSOFT CORPORATION |
发明人 |
DANKER, DANIEL;WASSERMANN, STEVEN |
| 分类号 |
H04L12/18;H04N7/08;H04H20/00;H04H20/16;H04H20/33;H04H60/16;H04H60/23;H04L12/28;H04N7/081;H04N7/16;H04N21/236;H04N21/6408 |
主分类号 |
H04L12/18 |
| 代理机构 |
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代理人 |
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| 主权项 |
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