发明名称 |
ИНТЕРАКТИВНАЯ СПУТНИКОВАЯ СИСТЕМА ВЕЩАНИЯ |
摘要 |
In a method of providing an interactive broadcast service, broadcast signals are transmitted via a wideband satellite link to end users. Return signals are received from the users transmitted over a narrowband satellite link separate from the first link. The return signals allow users of the service to send commands back to the base station to request specific services. |
申请公布号 |
RU98118933(A) |
申请公布日期 |
2000.08.20 |
申请号 |
RU19980118933 |
申请日期 |
1998.10.19 |
申请人 |
ВИСТАР ТЕЛЕКОММЬЮНИКЕЙШНЗ ИНК. (CA) |
发明人 |
Зулиани Майкл (CA);Хогли Ганс-Кристиан (CA) |
分类号 |
H04N7/173;H04N5/00;H04N7/20;H04N21/2383;H04N21/437;H04N21/478;H04N21/61 |
主分类号 |
H04N7/173 |
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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