Invention Grant
- Patent Title: Methods and apparatus for crystal oscillator drift estimation and compensation
- Patent Title (中): 晶体振荡器漂移估计和补偿的方法和装置
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Application No.: US11932258Application Date: 2007-10-31
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Publication No.: US07541884B2Publication Date: 2009-06-02
- Inventor: Mohammad A. Rahman , Umashankar S. Iyer
- Applicant: Mohammad A. Rahman , Umashankar S. Iyer
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Ronald O. Neerings; Wade James Brady, III; Frederick J. Telecky, Jr.
- Main IPC: H03L1/02
- IPC: H03L1/02 ; H04B1/06 ; H04L7/00 ; H04L27/06

Abstract:
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.
Public/Granted literature
- US20080273645A1 METHODS AND APPARATUS FOR CRYSTAL OSCILLATOR DRIFT ESTIMATION AND COMPENSATION Public/Granted day:2008-11-06
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