The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 07, 2018

Filed:

Jan. 10, 2018
Applicant:

Wistron Corporation, New Taipei, TW;

Inventor:

Meng-Ru Tsai, New Taipei, TW;

Assignee:

Winstron Corporation, New Taipei, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/06 (2006.01); H03M 1/08 (2006.01); H03F 3/45 (2006.01); H03K 19/20 (2006.01); H03K 5/24 (2006.01);
U.S. Cl.
CPC ...
H03M 1/0854 (2013.01); H03F 3/45 (2013.01); H03K 5/24 (2013.01); H03K 19/20 (2013.01);
Abstract

An amplifying circuit for analog to digital converter with multi-stage conversion range is used for dividing an analog input voltage into multiple voltage ranges to perform signal amplification and attenuation according to multiple magnifications (e.g., amplify the analog input voltage with low voltage level, and attenuate the analog input voltage with high voltage level). The analog to digital converter performs analog to digital conversion to the analog input voltage with amplification or attenuation to generate a digital bit with amplification or attenuation, and then generates an output digital bit according to the digital bit and the magnification. As a result, the analog to digital converter is adaptive to the analog input voltage with high voltage level, and precision and quantization error of the analog input voltage with low voltage level can be maintained as well.


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