发明授权
- 专利标题: Methods and apparatus for crystal oscillator drift estimation and compensation
- 专利标题(中): 晶体振荡器漂移估计和补偿的方法和装置
-
申请号: US11932258申请日: 2007-10-31
-
公开(公告)号: US07541884B2公开(公告)日: 2009-06-02
- 发明人: Mohammad A. Rahman , Umashankar S. Iyer
- 申请人: Mohammad A. Rahman , Umashankar S. Iyer
- 申请人地址: US TX Dallas
- 专利权人: Texas Instruments Incorporated
- 当前专利权人: Texas Instruments Incorporated
- 当前专利权人地址: US TX Dallas
- 代理商 Ronald O. Neerings; Wade James Brady, III; Frederick J. Telecky, Jr.
- 主分类号: H03L1/02
- IPC分类号: H03L1/02 ; H04B1/06 ; H04L7/00 ; H04L27/06
摘要:
In at least some disclosed embodiments, a method includes receiving a burst of data out of multiple bursts of data subject to long-term frequency drift and short-term frequency drift, determining an intercept of the long-term frequency drift based on, at most, the entire burst, and compensating for the long-term drift of a subsequent burst based on the intercept. The method further includes determining a slope of the short-term frequency drift, and compensating for the short-term frequency drift of a subsequent burst based on the slope.
公开/授权文献
信息查询