发明授权
US6141313A Integrated circuit with two phase-locked loops and circuit for
preventing locking owing to injection
失效
具有两个锁相环的集成电路和用于防止注入锁定的电路
- 专利标题： Integrated circuit with two phase-locked loops and circuit for preventing locking owing to injection
- 专利标题（中）： 具有两个锁相环的集成电路和用于防止注入锁定的电路
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申请号： US113576申请日： 1998-07-10
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公开(公告)号： US6141313A公开(公告)日： 2000-10-31
- 发明人: Luca Celant , Marco De Micheli , Melchiorre Bruccoleri , Luca Rigazio
- 申请人： Luca Celant , Marco De Micheli , Melchiorre Bruccoleri , Luca Rigazio
- 申请人地址： ITX Agrate Brianza
- 专利权人： STMicroelectronics S.r.l.
- 当前专利权人： STMicroelectronics S.r.l.
- 当前专利权人地址： ITX Agrate Brianza
- 优先权： EPX97830351 19970714
- 主分类号： G11B20/14
- IPC分类号： G11B20/14 ; H03B29/00 ; H03L7/07 ; H03L7/22 ; G11B7/00
摘要：
An integrated circuit including two phase-locked loops each with its own oscillator. To prevent locking owing to injection between the two oscillators due to stray currents in the integrated circuit, a noise generator is coupled to the oscillator of one of the loops and a timer is provided for activating the noise generator in a manner such that the noise generated changes the frequency of the oscillator randomly when the other loop is in operation.
公开/授权文献
- USD427201S Keyboard rack 公开/授权日：2000-06-27
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