发明授权
- 专利标题: Upgradable fiber-coax network
- 专利标题(中): 可升级光纤同轴网络
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申请号: US554332申请日: 1995-11-06
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公开(公告)号: US5699176A公开(公告)日: 1997-12-16
- 发明人: Leonard G. Cohen
- 申请人: Leonard G. Cohen
- 申请人地址: NJ Murray Hill
- 专利权人: Lucent Technologies Inc.
- 当前专利权人: Lucent Technologies Inc.
- 当前专利权人地址: NJ Murray Hill
- 主分类号: G02B6/12
- IPC分类号: G02B6/12 ; G02B6/28 ; G02B6/34 ; H04B10/272 ; H04B10/20 ; H04B10/00
摘要:
A fiber-coax network (30) includes feeder fiber (14) from a central office/headend (10) to a distribution node (32). At the distribution node, the transmissions are routed and distributed via successively a cable-coax node (16), a first PON node (36), and a second PON node (84). Each PON node comprises one or more passive optic component such as an optic splitter or wavelength division multiplexer (WDM). The cable-coax node provides broadcast CATV to subscribers via a coax distribution network (18) having spaced line extension amplifiers (LEAs) (26) in order to service more subscribers. The first PON node (36) provides switched telecommunication services (including ISDN) to subscribers via distribution fibers (38) which terminate at respective optic network units (ONUs) (40) that are co-located with an LEA (26) and connect to the coax distribution network downstream of the LEA (26). The second PON node (84) provides wireless services (including PCS) to subscribers within a predefined geographic area referred to as a microcell (82) via distribution fibers (86) which terminate at respective lightwave microcell transceivers (88) co-located with an LEA (26) and ONU (40). The co-located LEAs (20), ONUs (40), and LMTs are housed in a common multimedia enclosure (94). Further, the health of the network is monitored with fiber sensor loops (52, 62).
公开/授权文献
- US4633099A Feedback circuit for a semiconductor active element sensor 公开/授权日:1986-12-30