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Title:
ADC CONVERSION ERROR CORRECTING METHOD AND APPARATUS, AND MEDIUM
Document Type and Number:
WIPO Patent Application WO/2022/048499
Kind Code:
A1
Abstract:
An ADC conversion error correcting method, comprising: first, obtaining a theoretical conversion curve and actual conversion curve corresponding to an ADC; next, calculating the slope corresponding to at least one set of points on the actual conversion curve; and within a value range, if the area between a curve formed by a third point on the actual conversion curve and the slope and the actual conversion curve is smaller than the area between the theoretical conversion curve and the actual conversion curve, using as a correction conversion curve the curve formed by the third point and the slope. According to the technical solution, because the area between a corrected curve and the actual conversion curve is smaller than the area between the theoretical conversion curve and the actual conversion curve, the correction conversion curve is as close as possible to the actual conversion curve, thereby reducing non-linear errors in conversion of analog signals to digital signals in the prior art, thus improving the overall accuracy of the ADC, and saving hardware costs.

Inventors:
YANG WEN (CN)
SHEN GANG (CN)
Application Number:
PCT/CN2021/114975
Publication Date:
March 10, 2022
Filing Date:
August 27, 2021
Export Citation:
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Assignee:
SINOCARE INC (CN)
International Classes:
H03M1/06
Foreign References:
CN112165328A2021-01-01
CN104767524A2015-07-08
CN107941417A2018-04-20
US20080186214A12008-08-07
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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