发明授权
US07712120B2 System and method for distributing DBS content to multiple receivers in the home over a single coax
失效
通过单个同轴电缆将DBS内容分发到家庭中的多个接收器的系统和方法
- 专利标题: System and method for distributing DBS content to multiple receivers in the home over a single coax
- 专利标题(中): 通过单个同轴电缆将DBS内容分发到家庭中的多个接收器的系统和方法
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申请号: US10899378申请日: 2004-07-26
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公开(公告)号: US07712120B2公开(公告)日: 2010-05-04
- 发明人: Dinesh Nadarajah , Ahmad C. Ansari
- 申请人: Dinesh Nadarajah , Ahmad C. Ansari
- 申请人地址: US NV Reno
- 专利权人: AT&T Intellectual Property I, L.P.
- 当前专利权人: AT&T Intellectual Property I, L.P.
- 当前专利权人地址: US NV Reno
- 代理机构: Toler Law Group
- 主分类号: H04N7/20
- IPC分类号: H04N7/20
摘要:
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.
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