发明授权
- 专利标题： Asynchronous to synchronous sampling using Akima algorithm
- 专利标题（中）： 使用Akima算法进行异步到同步采样
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申请号： US14194236申请日： 2014-02-28
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公开(公告)号： US09184761B2公开(公告)日： 2015-11-10
- 发明人: Abhijit A. Patki , Ganesan Thiagarajan , Udayan Dasgupta
- 申请人： TEXAS INSTRUMENTS INCORPORATED
- 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 Alan A. R. Cooper; Frank D. Cimino
- 优先权： IN913/CHE/2013 20130301; IN927/CHE/2013 20130304; IN971/CHE/2013 20130306; IN1066/CHE/2013 20130313; IN1132/CHE/2013 20130315
- 主分类号： H03M1/12
- IPC分类号： H03M1/12 ; H03M1/08 ; H03M1/18 ; H03M1/36
摘要：
A method, comprising: selecting three Two-Tuples before and three after a selected synchronous ADC conversion point; calculating the coefficients of a third order polynomial based on the value of the previous time asynchronous sample, the time difference between the asynchronous samples surrounding the selected sample, and the five linear slopes of the line segments between the three points before and the points after the selected synchronous sample point, including the slope of the selected point; evaluating the third order polynomial at the synchronous time instant; generating the synchronous ADC value based on this calculation; and using the ADC value as the desired voltage level of the synchronous sample, wherein the synchronous ADC value is generated based on this calculation.
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