发明授权
- 专利标题: Diversity receiver
- 专利标题(中): 分集接收机
-
申请号: US995077申请日: 1992-12-22
-
公开(公告)号: US5335251A公开(公告)日: 1994-08-02
- 发明人: Hiroshi Onishi , Akihiko Matsuoka , Kouei Misaizu , Yuuri Yamamoto
- 申请人: Hiroshi Onishi , Akihiko Matsuoka , Kouei Misaizu , Yuuri Yamamoto
- 申请人地址: JPX
- 专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址: JPX
- 优先权: JPX3-342627 19911225
- 主分类号: H04L1/06
- IPC分类号: H04L1/06 ; H04B7/08 ; H04L1/02 ; H04L25/03 ; H04L27/01 ; H04B7/10
摘要:
A diversity receiver includes a first antenna and a second antenna. A first receiving section connected to the first antenna serves to convert a digital modulation wave induced at the first antenna into a first intermediate-frequency signal. A first band pass filter connected to the first receiving section serves to subject the first intermediate-frequency signal to a band pass filtering process. A second receiving section connected to the second antenna serves to convert a digital modulation wave induced at the second antenna into a second intermediate-frequency signal. A second band pass filter connected to the second receiving section serves to subject the second intermediate-frequency signal to a band pass filtering process. A switch alternately selects one of output signals of the first and second band pass filters at a period equal to a half of a period corresponding to the symbol rate. A quadrature demodulator connected to the switch serves to demodulate an output signal of the switch into quadrature baseband signals. An analog-to-digital converter connected to the quadrature demodulator converts the quadrature baseband signals into corresponding digital signals. A decision feedback adaptive equalizer connected to the analog-to-digital converter serves to subject the digital signals to an equalizing process.
公开/授权文献
- US6119305A Sealing elements 公开/授权日:2000-09-19