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:
Jul. 05, 2016

Filed:

Sep. 25, 2014
Applicant:

Taiwan Semiconductor Manufacturing Company Limited, Hsin-Chu, TW;

Inventors:

Kuo-Yu Chou, Hsinchu, TW;

Shang-Fu Yeh, Hsinchu, TW;

Wei Lun Tao, Hsinchu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/56 (2006.01); H03M 1/00 (2006.01); H04N 5/3745 (2011.01); H03M 1/34 (2006.01); H03M 1/06 (2006.01); H04N 5/378 (2011.01);
U.S. Cl.
CPC ...
H03M 1/002 (2013.01); H03M 1/0607 (2013.01); H03M 1/34 (2013.01); H04N 5/378 (2013.01); H04N 5/37455 (2013.01);
Abstract

One or more analog-to-digital converters and methods for analog-to-digital conversion are provided. The analog-to-digital converter comprises a ramp generator and a direct current (DC) generator respectively configured to apply a ramp voltage waveform and a DC voltage waveform to a comparator. During a pixel signal level conversion, a first portion of the ramp voltage waveform is applied to the comparator. A control circuit then makes a determination regarding an output of the comparator. If the output corresponds to a first output, or first logic state, the ramp voltage generator applies a second portion of the ramp voltage waveform to the comparator. If the output corresponds to a second output, or second logic state, the DC generator adjusts the DC voltage waveform applied to the comparator.


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