发明授权
- 专利标题: Polarization diversity optical receiving apparatus and method
- 专利标题(中): 极化分集光接收装置及方法
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申请号: US450697申请日: 1989-12-14
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公开(公告)号: US5142402A公开(公告)日: 1992-08-25
- 发明人: Hideaki Tsushima , Shinya Sasaki , Ryoji Takeyari
- 申请人: Hideaki Tsushima , Shinya Sasaki , Ryoji Takeyari
- 申请人地址: JPX Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX63-316356 19881216
- 主分类号: G02F2/00
- IPC分类号: G02F2/00 ; H04B7/10 ; H04B10/07 ; H04B10/516 ; H04B10/61
摘要:
A polarization diversity optical receiving apparatus comprises at least one frequency converter for performing frequency conversion upon an IF signal, an adder for adding two IF signals together, and a demodulator for converting a signal outputted from the adder to a baseband signal.
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