Invention Grant
US09077359B2 Asynchronous to synchronous sampling using modified akima algorithm
有权
使用改进的akima算法进行异步到同步采样
- Patent Title: Asynchronous to synchronous sampling using modified akima algorithm
- Patent Title (中): 使用改进的akima算法进行异步到同步采样
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Application No.: US14194264Application Date: 2014-02-28
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Publication No.: US09077359B2Publication Date: 2015-07-07
- Inventor: Ganesan Thiagarajan , Udayan Dasgupta , Abhijit A. Patki
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Alan A. R. Cooper; Frank D. Cimino
- Priority: IN913/CHE/2013 20130301; IN927/CHE/2013 20130304; IN971/CHE/2013 20130306; IN1066/CHE/2013 20130313; IN1132/CHE/2013 20130315
- Main IPC: H03M1/12
- IPC: H03M1/12 ; H03M1/08 ; H03M1/18 ; H03M1/36
Abstract:
A method, comprising: selecting two Two-Tuples before and two 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 differences between each of the asynchronous samples surrounding the selected sample, and the three linear slopes of the line segments between the two 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.
Public/Granted literature
- US20140247174A1 ASYNCHRONOUS TO SYNCHRONOUS SAMPLING USING MODIFIED AKIMA ALGORITHM Public/Granted day:2014-09-04
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