Invention Grant
- Patent Title: Start-up automatic frequency control (AFC) method and apparatus
- Patent Title (中): 启动自动频率控制(AFC)方法和装置
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Application No.: US12185361Application Date: 2008-08-04
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Publication No.: US08149963B2Publication Date: 2012-04-03
- Inventor: Alpaslan Demir
- Applicant: Alpaslan Demir
- Applicant Address: US DE Wilmington
- Assignee: InterDigital Technology Corporation
- Current Assignee: InterDigital Technology Corporation
- Current Assignee Address: US DE Wilmington
- Agency: Volpe and Koenig, P.C.
- Main IPC: H04L27/06
- IPC: H04L27/06

Abstract:
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).
Public/Granted literature
- US20080285689A1 START-UP AUTOMATIC FREQUENCY CONTROL (AFC) METHOD AND APPARATUS Public/Granted day:2008-11-20
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