公开(公告)号：US20120086588A1

公开(公告)日：2012-04-12

申请号：US12901318

申请日：2010-10-08

Applicant: Chih-Feng LIN

Inventor： Chih-Feng LIN

IPC: H03M1/06 ,  H03M1/12

CPC classification number: H03M1/1019 ,  H03M1/12

Abstract: A system and method of correcting baseline wander (BLW) are disclosed. An analog-to-digital converter (ADC) converts an analog input to a digital output, and a slicer maps the digital output to one of a plurality of predefined values. A BLW correction unit generates a BLW correction value according to a difference between an input and an output of the slicer. A correction controller generates a fine correction value and a coarse correction value according to the BLW correction value. Specifically, the fine correction value is used to correct the digital output of the ADC, and the coarse correction value is used to correct the analog input of the ADC.

Abstract translation: 公开了一种校正基线漂移（BLW）的系统和方法。 模拟 - 数字转换器（ADC）将模拟输入转换为数字输出，并且限幅器将数字输出映射到多个预定义值中的一个。 BLW校正单元根据限幅器的输入和输出之间的差产生BLW校正值。 校正控制器根据BLW校正值产生精细校正值和粗略校正值。 具体来说，使用精细校正值来校正ADC的数字输出，粗校正值用于校正ADC的模拟输入。