发明授权
- 专利标题: Optical line terminating apparatus and optical communication system
- 专利标题(中): 光线路终端设备和光通信系统
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申请号: US12068829申请日: 2008-02-12
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公开(公告)号: US07936991B2公开(公告)日: 2011-05-03
- 发明人: Toshiki Sugawara , Masahiko Mizutani , Hiroki Ikeda , Kenichi Sakamoto
- 申请人: Toshiki Sugawara , Masahiko Mizutani , Hiroki Ikeda , Kenichi Sakamoto
- 申请人地址: JP Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Stites & Harbison PLLC
- 代理商 Juan Carlos A. Marquez, Esq
- 优先权: JP2007-246485 20070925
- 主分类号: H04B10/20
- IPC分类号: H04B10/20 ; H04J14/00
摘要:
An optical access communication apparatus and an optical access communication system for the coexistence of two wideband PON systems without using an expensive optical device or module. A low-speed PON and a high-speed PON have a same upstream wavelength, and an OLT receives optical signals by a same optical receiver in the two systems, converts the optical signals into electric signals, amplifies the electric signals, branches the amplified electric signals, and processes the branched signals by clock and data recovery sections of bit rates corresponding to the two PON systems, thereby achieving an optical communication apparatus and an optical communication system for constructing a simple and low-cost triple-play service system of excellent transmission quality.