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1. 发明公开

EP1229655A3 Phase locked loop apparatus 有权
标题翻译：具有一个锁相环装置
公开(公告)号：EP1229655A3
公开(公告)日：2004-04-28
申请号：EP02250528.3
申请日：2002-01-25
申请人： Marconi Mobile SpA
发明人： Pomona, Ignazio , Russo, Mario , Leonardi, Orazio
IPC分类号： H03L7/087 , H03L7/22 , H03L7/113 , H03L7/20
CPC分类号： H03L7/20 , H03L7/087 , H03L7/091 , H03L7/113
摘要： A phase locked loop apparatus 40 comprises an analogue phase locked loop 41 having a sampling phase detector 42 arranged to determine an error signal 44 corresponding to the phase difference between a reference frequency 43 and a frequency 50 generated by a voltage controlled oscillator 49. The error signal 44 is used in a feedback pathway 51 to control the frequency 50 generated by the voltage controlled oscillator 49 so as to reduce the error signal 44 over time. A second phase locked loop 53 comprises a digital phase locked loop unit 54 arranged to determine a direction indicator corresponding to the phase difference between the reference frequency 43 and the frequency 50 generated by the voltage controlled oscillator 49 and a microprocessor unit 55 that is arranged to vary the error signal 44 in a predetermined manner in accordance with the direction indicator until the value of the error signal 44 is within a predefined value range.

2. 发明授权

EP1229655B1 Phase locked loop apparatus 有权
标题翻译：具有一个锁相环装置
公开(公告)号：EP1229655B1
公开(公告)日：2006-06-14
申请号：EP02250528.3
申请日：2002-01-25
申请人： Marconi Mobile SpA
发明人： Pomona, Ignazio , Russo, Mario , Leonardi, Orazio
IPC分类号： H03L7/087 , H03L7/22 , H03L7/113 , H03L7/20
CPC分类号： H03L7/20 , H03L7/087 , H03L7/091 , H03L7/113

3. 发明公开

EP1229655A2 Phase locked loop apparatus 有权
标题翻译： Vorrichtung mit einer Phasenregelschleife
公开(公告)号：EP1229655A2
公开(公告)日：2002-08-07
申请号：EP02250528.3
申请日：2002-01-25
申请人： Marconi Mobile SpA
发明人： Pomona, Ignazio , Russo, Mario , Leonardi, Orazio
IPC分类号： H03L7/087 , H03L7/20
CPC分类号： H03L7/20 , H03L7/087 , H03L7/091 , H03L7/113
摘要： A phase locked loop apparatus 40 comprises an analogue phase locked loop 41 having a sampling phase detector 42 arranged to determine an error signal 44 corresponding to the phase difference between a reference frequency 43 and a frequency 50 generated by a voltage controlled oscillator 49. The error signal 44 is used in a feedback pathway 51 to control the frequency 50 generated by the voltage controlled oscillator 49 so as to reduce the error signal 44 over time. A second phase locked loop 53 comprises a digital phase locked loop unit 54 arranged to determine a direction indicator corresponding to the phase difference between the reference frequency 43 and the frequency 50 generated by the voltage controlled oscillator 49 and a microprocessor unit 55 that is arranged to vary the error signal 44 in a predetermined manner in accordance with the direction indicator until the value of the error signal 44 is within a predefined value range.
摘要翻译：锁相环装置40包括具有采样相位检测器42的模拟锁相环41，该采样相位检测器42用于确定对应于由压控振荡器49产生的参考频率43和频率50之间的相位差的误差信号44.误差信号44用在反馈路径51中以控制由压控振荡器49产生的频率50，以便随时间减小误差信号44。第二锁相环53包括数字锁相环单元54，数字锁相环单元54被布置成确定对应于由压控振荡器49产生的参考频率43和频率50之间的相位差的方向指示符和布置成根据方向指示符以预定方式改变误差信号44，直到误差信号44的值在预定值范围内。

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