Invention Grant
- Patent Title: Asynchronous to synchronous sampling using Akima algorithm
- Patent Title (中): 使用Akima算法进行异步到同步采样
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Application No.: US14194236Application Date: 2014-02-28
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Publication No.: US09184761B2Publication Date: 2015-11-10
- Inventor: Abhijit A. Patki , Ganesan Thiagarajan , Udayan Dasgupta
- 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 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.
Public/Granted literature
- US20140247173A1 ASYNCHRONOUS TO SYNCHRONOUS SAMPLING USING AKIMA ALGORITHM Public/Granted day:2014-09-04
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