发明名称 |
INTERACTIVE SATELLITE BROADCAST SYSTEM |
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.
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申请公布号 |
WO9735432(A1) |
申请公布日期 |
1997.09.25 |
申请号 |
WO1997CA00178 |
申请日期 |
1997.03.14 |
申请人 |
VISTAR TELECOMMUNICATIONS INC.;ZULIANI, MICHAEL;HAUGLI, HANS-CHRISTIAN |
发明人 |
ZULIANI, MICHAEL;HAUGLI, HANS-CHRISTIAN |
分类号 |
H04N5/00;H04N7/173;H04N7/20;(IPC1-7):H04N7/173 |
主分类号 |
H04N5/00 |
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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