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1. 发明申请

WO2007055870A2 HIGH RESOLUTION AUTO-TUNING FOR A VOLTAGE CONTROLLED OSCILLATOR 审中-公开
标题翻译：高分辨率自动调谐电压控制振荡器
公开(公告)号：WO2007055870A2
公开(公告)日：2007-05-18
申请号：PCT/US2006/040284
申请日：2006-10-13
申请人： SKYWORKS SOLUTIONS, INC. , WANG, Hua , RIPLEY, David, S. , ROLL, Bryan, J.
发明人： WANG, Hua , RIPLEY, David, S. , ROLL, Bryan, J.
IPC分类号： H04B1/06
CPC分类号： H03L7/0992 , H03L7/099 , H03L7/10 , H03L7/18 , H03L7/187 , H03L7/193
摘要： According to one exemplary embodiment, an auto-tuning circuit (104) coupled to a voltage controlled oscillator (102) in a phase locked loop, where the voltage controlled oscillator is coupled to a capacitor array (105), includes a prescaler circuit (106) configured to provide a divided voltage controlled oscillator frequency, where the prescaler circuit is used in the phase locked loop during fine tuning of the voltage controlled oscillator in the auto-tuning circuit during coarse tuning of the voltage controlled oscillator. The auto-tuning circuit further includes a digital processing logic circuit (108) coupled to the prescaler circuit and configured to determine a capacitance of the capacitor array by comparing comp_cnt to a pre-determined value, where comp_cnt is determined by a number of cycles of the divided voltage controlled oscillator frequency that occur in a calibration interval.
摘要翻译：根据一个示例性实施例，耦合到锁相环中的压控振荡器（102）的自调谐电路（104），其中压控振荡器耦合到电容器阵列（105），包括预分频器电路（106）），其被配置为提供分压控制的振荡器频率，其中在电压控制振荡器的粗调谐期间，在自调谐电路中的压控振荡器进行微调时，预分频器电路用于锁相环。自动调谐电路还包括耦合到预分频器电路的数字处理逻辑电路（108），并配置为通过将comp_cnt与预定值进行比较来确定电容器阵列的电容，其中comp_cnt由多个周期的在校准间隔内发生的分压电压振荡器频率。

2. 发明申请

WO2009117651A2 SYSTEM AND METHOD FOR TUNING A RADIO RECEIVER 审中-公开
标题翻译：用于调谐无线电接收机的系统和方法
公开(公告)号：WO2009117651A2
公开(公告)日：2009-09-24
申请号：PCT/US2009/037794
申请日：2009-03-20
申请人： SKYWORKS SOLUTIONS, INC. , SHI, Ying , ROLL, Bryan, J.
发明人： SHI, Ying , ROLL, Bryan, J.
IPC分类号： H04B1/14 , H04B1/16
CPC分类号： H04L27/14
摘要： A system for tuning a radio receiver includes a radio receiver configured to provide a downconverted digital error signal, a digital synthesizer circuit configured to generate a first local oscillator control signal, a digital automatic frequency control (AFC) circuit configured to generate a second local oscillator control signal, wherein the digital synthesizer circuit is enabled to generate the first local oscillator control signal when the digital AFC circuit is disabled, the first local oscillator control signal corresponds to an estimate of a desired local oscillator frequency, the digital AFC circuit is enabled to generate the second local oscillator control signal when the digital synthesizer circuit is disabled and the second local oscillator control signal corresponds to the desired local oscillator frequency.
摘要翻译：用于调谐无线电接收机的系统包括：配置成提供下变频的数字误差信号的无线电接收机，配置成产生第一本地振荡器控制信号的数字合成器电路，数字自动频率控制（AFC）电路，被配置为生成第二本地振荡器控制信号，其中，当数字AFC电路被禁用时，数字合成器电路能够生成第一本地振荡器控制信号，第一本地振荡器控制信号对应于期望的本地振荡器频率的估计当数字合成器电路被禁止并且第二本地振荡器控制信号对应于期望的本地振荡器频率时，数字AFC电路能够产生第二本地振荡器控制信号。

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