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公开(公告)号:US07557624B2
公开(公告)日:2009-07-07
申请号:US11940458
申请日:2007-11-15
申请人: Robertus Laurentius van der Valk , Paulus Hendricus Lodewijk Maria Schram , Johannes Hermanus Aloysius de Rijk
发明人: Robertus Laurentius van der Valk , Paulus Hendricus Lodewijk Maria Schram , Johannes Hermanus Aloysius de Rijk
IPC分类号: H03L7/06
CPC分类号: H03L7/085 , H03L7/091 , H03L7/0991 , H03L7/18 , H03L2207/10 , H03L2207/50
摘要: A phase locked loop provides an output frequency that bears a fractional relationship to an input frequency and includes a controlled oscillator for generating the output frequency. The phase information is scaled in the amplitude domain to provide the fractional relationship.
摘要翻译: 锁相环提供与输入频率成分关系的输出频率,并且包括用于产生输出频率的受控振荡器。 相位信息在幅度域中缩放以提供分数关系。
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公开(公告)号:US07619483B2
公开(公告)日:2009-11-17
申请号:US11939948
申请日:2007-11-14
申请人: Robertus Laurentius van der Valk , Paulus Hendricus Lodewijk Maria Schram , Douglas Robert Sitch
发明人: Robertus Laurentius van der Valk , Paulus Hendricus Lodewijk Maria Schram , Douglas Robert Sitch
IPC分类号: H03L7/06
CPC分类号: H04L7/0331 , H03L7/0807 , H03L7/0991 , H03L2207/50
摘要: A digital phase locked loop includes a phase acquisition unit receiving a sampled input signal and applying its output to a first input of a digital phase detector, a digital controlled oscillator producing a digital output, and a feedback path coupling the digital output of the digital controlled oscillator to a second input of the digital phase detector in the digital domain. The input signal may be sampled asynchronously.
摘要翻译: 数字锁相环包括相位获取单元,其接收采样的输入信号并将其输出应用于数字相位检测器的第一输入端,产生数字输出的数字控制振荡器和耦合数字控制的数字输出的数字输出的反馈路径 振荡器到数字域中的数字相位检测器的第二输入。 可以异步采样输入信号。
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公开(公告)号:US20080116982A1
公开(公告)日:2008-05-22
申请号:US11939894
申请日:2007-11-14
申请人: Robertus Laurentius van der Valk , Paulus Hendricus Lodewijk Maria Schram , Johannes Hermanus Aloysius de Rijk
发明人: Robertus Laurentius van der Valk , Paulus Hendricus Lodewijk Maria Schram , Johannes Hermanus Aloysius de Rijk
CPC分类号: H03L7/0991 , H03L7/085 , H03L7/091 , H03L7/18 , H03L2207/50
摘要: A digital phase locked loop includes a phase acquisition unit for producing a digital representation of the phase of a reference signal, a digital phase detector having a first input receiving a digital signal from, or derived from, the output of the phase acquisition unit, digital loop filter filtering the output of the digital phase detector, and a digital controlled oscillator generating an output signal under the control of the digital loop filter. A digital feedback loop provides a second input to the digital phase detector from the output of the digital controlled oscillator.
摘要翻译: 数字锁相环包括用于产生参考信号的相位的数字表示的相位获取单元,具有从相位获取单元的输出接收数字信号或从相位获取单元的输出导出的数字相位检测器的数字相位检测器,数字 环路滤波器对数字相位检测器的输出进行滤波,数字控制振荡器在数字环路滤波器的控制下产生输出信号。 数字反馈环路从数字控制振荡器的输出端向数字相位检测器提供第二输入。
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公开(公告)号:US20080116980A1
公开(公告)日:2008-05-22
申请号:US11939948
申请日:2007-11-14
申请人: Robertus Laurentius van der Valk , Paulus Hendricus Lodewijk Maria Schram , Douglas Robert Sitch
发明人: Robertus Laurentius van der Valk , Paulus Hendricus Lodewijk Maria Schram , Douglas Robert Sitch
IPC分类号: H03L7/085
CPC分类号: H04L7/0331 , H03L7/0807 , H03L7/0991 , H03L2207/50
摘要: A digital phase locked loop includes a phase acquisition unit receiving a sampled input signal and applying its output to a first input of a digital phase detector, a digital controlled oscillator producing a digital output, and a feedback path coupling the digital output of the digital controlled oscillator to a second input of the digital phase detector in the digital domain. The input signal may be sampled asynchronously.
摘要翻译: 数字锁相环包括相位获取单元,其接收采样的输入信号并将其输出应用于数字相位检测器的第一输入端,产生数字输出的数字控制振荡器和耦合数字控制的数字输出的数字输出的反馈路径 振荡器到数字域中的数字相位检测器的第二输入。 可以异步采样输入信号。
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公开(公告)号:US20080122504A1
公开(公告)日:2008-05-29
申请号:US11940458
申请日:2007-11-15
申请人: Robertus Laurentius van der Valk , Paulus Hendricus Lodewijk Maria Schram , Johannes Hermanus Aloysius de Rijk
发明人: Robertus Laurentius van der Valk , Paulus Hendricus Lodewijk Maria Schram , Johannes Hermanus Aloysius de Rijk
CPC分类号: H03L7/085 , H03L7/091 , H03L7/0991 , H03L7/18 , H03L2207/10 , H03L2207/50
摘要: A phase locked loop provides an output frequency that bears a fractional relationship to an input frequency and includes a controlled oscillator for generating the output frequency. The phase information is scaled in the amplitude domain to provide the fractional relationship.
摘要翻译: 锁相环提供与输入频率成分关系的输出频率,并且包括用于产生输出频率的受控振荡器。 相位信息在幅度域中缩放以提供分数关系。
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