发明授权
- 专利标题: System and method providing bi-directional communication services between a service provider and a plurality of subscribers
- 专利标题(中): 在服务提供商和多个订阅者之间提供双向通信服务的系统和方法
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申请号: US09568326申请日: 2000-05-09
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公开(公告)号: US06600900B1公开(公告)日: 2003-07-29
- 发明人: Raymond W. Palinkas
- 申请人: Raymond W. Palinkas
- 主分类号: H04N7173
- IPC分类号: H04N7173
摘要:
A telecommunications system for bi-directional communication services between a service provider and a plurality of subscribers wherein return signals associated with the bi-directional communication services utilize a first frequency band. The system includes a head-end facility for sending forward signals from the service provider and for receiving return signals from one or more of the subscribers; at least one main distribution line extending from the head-end facility; a plurality of feeder lines for serving the plurality of subscribers, each feeder line being connected to the main distribution line at a feeder tap location; a local distribution amplifier unit disposed in the main distribution line between the head-end facility and the feeder tap locations, the amplifier unit including forward-path amplifier circuitry for amplifying forward signals traveling from the service provider to the subscribers, the amplifier unit further including return-path amplifier circuitry for amplifying return signals traveling from one or more of the subscribers to the service provider; and a return-path filter disposed between the head-end facility and the feeder tap locations, the return-path filter being operable to attenuate signals outside the first frequency band while allowing signals within the first frequency band to pass substantially unattenuated, whereby the return-path filter reduces transmission of ingress noise from each of the plurality of subscribers.
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