发明授权
- 专利标题： Variable-ratio frequency divider
- 专利标题（中）： 可变比分频器
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申请号： US686012申请日： 1984-12-24
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公开(公告)号： US4651334A公开(公告)日： 1987-03-17
- 发明人: Yoshihiko Hayashi
- 申请人： Yoshihiko Hayashi
- 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： JPX58-243854 19831226
- 主分类号： H03K23/64
- IPC分类号： H03K23/64 ; H03K23/58 ; H03K23/66 ; H03K21/06
摘要：
A variable-ratio frequency divider has a D flip-flop which makes possible high-speed operation, and the number of frequency divisions is made variable by changing the transmission delay time of a delay element included in a feedback loop from the output Q to a predetermined terminal of the D flip-flop.