发明授权
- 专利标题: Start-up automatic frequency control (AFC) method and apparatus
- 专利标题(中): 启动自动频率控制(AFC)方法和装置
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申请号: US13438595申请日: 2012-04-03
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公开(公告)号: US08385482B2公开(公告)日: 2013-02-26
- 发明人: Alpaslan Demir
- 申请人: Alpaslan Demir
- 申请人地址: US DE Wilmington
- 专利权人: InterDigital Technology Corporation
- 当前专利权人: InterDigital Technology Corporation
- 当前专利权人地址: US DE Wilmington
- 代理机构: Volpe and Koenig, P.C.
- 主分类号: H04L27/06
- IPC分类号: H04L27/06
摘要:
A method and apparatus for use in connection with wireless communication to adjust the frequency of an oscillator to synchronize with a received signal by correlating a synchronization code channel with training sequences to estimate relative offsets which are employed to estimate an error, which is then filtered. The filtered output preferably provides a voltage controlling a voltage controlled oscillator (VCO). The same technique may be employed to control a numeric controlled oscillator (NCO).
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