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    • 49. 发明授权
    • Optical line terminal
    • 光线路终端
    • US08238753B2
    • 2012-08-07
    • US12414074
    • 2009-03-30
    • Hiroshi HamanoSusumu Kinoshita
    • Hiroshi HamanoSusumu Kinoshita
    • H04J14/08
    • H04J14/0226H04J3/1652H04J14/0246H04J14/0247H04J14/0252H04J14/0254H04J14/026H04J14/0282
    • An optical line terminal receives an optical signal transmitted by time division multiple access from plural optical network units among which are an optical network unit performing communications at a first bit rate and an optical network unit performing communications at a second bit rate. The optical line terminal includes a branching unit, a first receiving unit, and a second receiving unit. The branching unit branches the optical signal into branches, at an asymmetrical branching ratio. The first receiving unit receives a branch having the first bit rate, among the branches of a greater branched proportion. The second receiving unit receives a branch having the second bit rate, among the branches of a lesser branched proportion.
    • 光线路终端从多个光网络单元接收通过时分多址接收发送的光信号,其中光网络单元是以第一比特率进行通信的光网络单元和以第二比特率执行通信的光网络单元。 光线路终端包括分支单元,第一接收单元和第二接收单元。 分支单元以不对称的分支比将光信号分支成分支。 第一接收单元在分支比例较大的分支中接收具有第一比特率的分支。 第二接收单元接收具有较小分支比例的分支中具有第二比特率的分支。