发明授权
- 专利标题： Efficient fractional divider
- 专利标题（中）： 高效分数分频器
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申请号： US282387申请日： 1999-03-31
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公开(公告)号： US6127863A公开(公告)日： 2000-10-03
- 发明人: Paul M. Elliott
- 申请人： Paul M. Elliott
- 申请人地址： CA San Jose
- 专利权人： Cisco Systems, Inc.
- 当前专利权人： Cisco Systems, Inc.
- 当前专利权人地址： CA San Jose
- 主分类号： G06F7/62
- IPC分类号： G06F7/62 ; H03K21/00
摘要：
In accordance with the invention, a method and structure are provided for obtaining a ratio of M/(2.sup.N +K) by feeding various carry-out (and/or complemented carry-out) signals from full-adders back to various frequency control inputs of the full-adders to modify the denominator of the division ratio. By doing this, K additional or fewer counts are accumulated during each cycle. Thus, the denominator can be changed from 2.sup.N to 2.sup.N +K, where K can be either positive or negative to obtain the desired M/(2.sup.N +K) ratio.
公开/授权文献
- US5468463A Process for the preparation of very pure titanium dioxide 公开/授权日：1995-11-21
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