发明授权
US07177602B2 Electronic devices having automatic frequency control systems and methods and computer program products for operating the same
有权
具有自动频率控制系统和方法的电子设备以及用于操作该电子设备的计算机程序产品
- 专利标题： Electronic devices having automatic frequency control systems and methods and computer program products for operating the same
- 专利标题（中）： 具有自动频率控制系统和方法的电子设备以及用于操作该电子设备的计算机程序产品
-
申请号： US10457913申请日： 2003-06-10
-
公开(公告)号： US07177602B2公开(公告)日： 2007-02-13
- 发明人: Mikael Ziren , Jonas Ohlsson , Tatjana Hrnjez , Elias Jonsson , Bo Bernhardsson
- 申请人： Mikael Ziren , Jonas Ohlsson , Tatjana Hrnjez , Elias Jonsson , Bo Bernhardsson
- 申请人地址： SE Stockholm
- 专利权人： Telefonaktiebolaget LM Ericsson (publ)
- 当前专利权人： Telefonaktiebolaget LM Ericsson (publ)
- 当前专利权人地址： SE Stockholm
- 主分类号： H04B1/40
- IPC分类号： H04B1/40 ; H04B1/04 ; H04B1/18 ; H04B7/00
摘要：
An automatic frequency control (AFC) system in an electronic device is operated by using an AFC-algorithm component to determine a frequency error corresponding to a difference between a frequency of a signal output from a signal generator and a received signal frequency. The frequency error determined by the AFC-algorithm component is multiplied by a scaling factor, which is set to zero after an adjustment has been made to change a frequency of the signal output from the signal generator. The scaling factor is increased from zero to one over time. The scaled frequency error is used to determine whether to adjust the frequency of the signal output from the signal generator.
公开/授权文献
信息查询
