发明名称 |
DISTRIBUTING DBS CONTENT TO MULTIPLE RECEIVERS OVER A SINGLE COAXIAL CABLE |
摘要 |
<p>A satellite transponder switch (STS) maintains a table that maps set-top boxes (STBs) to carrier frequencies. The STS receives a first request from a first STB for a first transponder band and a second request from a second STB for a second transponder band. The STS accesses a first satellite feed and polarity based on the first request, and a second satellite feed and polarity based on the second request. The STS band-pass filters the first and second transponder bands from the first and second satellite feed and polarity, respectively. The STS frequency shifts the first transponder band to a first carrier frequency assigned to the first STB and the second transponder band to a second carrier frequency assigned to the second STB. The STS outputs a signal that comprises the frequency-shifted first and second transponder bands to the first STB and the second STB.</p> |
申请公布号 |
WO2006019739(A2) |
申请公布日期 |
2006.02.23 |
申请号 |
WO2005US24699 |
申请日期 |
2005.07.12 |
申请人 |
SBC KNOWLEDGE VENTURES, L.P. |
发明人 |
NADARAJAH, DINESH;ANSARI, AHMAD C. |
分类号 |
H04H20/63;H04H20/76;H04H40/90 |
主分类号 |
H04H20/63 |
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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