发明公开
EP0757450A3 Acquisition and tracking filter for spread spectrum signals
失效
Erfassungs- und VerfolgungsfilterfürSpreizspektrumsignale
- 专利标题： Acquisition and tracking filter for spread spectrum signals
- 专利标题（中）： Erfassungs- und VerfolgungsfilterfürSpreizspektrumsignale
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申请号： EP96112313.0申请日： 1996-07-30
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公开(公告)号： EP0757450A3公开(公告)日： 2000-06-21
- 发明人: Zhou, Changming , Shou, Guoliang , Yamamoto, Makoto , Takatori, Sunao
- 申请人： YOZAN INC. , SHARP KABUSHIKI KAISHA
- 申请人地址： 3-5-18, Kitazawa, Setagaya-ku Tokyo 155 JP
- 专利权人： YOZAN INC.,SHARP KABUSHIKI KAISHA
- 当前专利权人： YOZAN INC.,SHARP KABUSHIKI KAISHA
- 当前专利权人地址： 3-5-18, Kitazawa, Setagaya-ku Tokyo 155 JP
- 代理机构： Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät
- 优先权： JP21538995 19950731
- 主分类号： H04B1/707
- IPC分类号： H04B1/707
摘要：
The present invention has an object to provide a filter circuit largely reducing electric power to consume compared with a conventional one, as well as realizing the first acquisition in enough high speed. In a filter circuit according to the present invention, a matched filter and a sliding correlator are used in parallel, the first acquisition and holding is executed by a matched filter, a correlating operation is executed by a sliding correlator and a voltage is stopped to supply to the matched filter.
公开/授权文献
- EP0757450B1 Acquisition and tracking filter for spread spectrum signals 公开/授权日：2004-10-06
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