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. 02, 2016

Filed:

Jun. 26, 2014
Applicant:

Silicon Optronics, Inc., Hsinchu, TW;

Inventor:

Xiaodong Luo, Hsinchu, TW;

Assignee:

SILICON OPTONICS, INC., Hsinchu, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 5/335 (2011.01); H04N 5/378 (2011.01);
U.S. Cl.
CPC ...
H04N 5/378 (2013.01); H04N 5/335 (2013.01);
Abstract

An image sensor is provided. The image sensor includes a pixel array, a sense amplifier, an analog-to-digital converter, a processor and a voltage generator. The sense amplifier obtains a first signal according to a pixel signal from the pixel array and a reference voltage, wherein the reference voltage has a first voltage level. The analog-to-digital converter converts the first signal into a first digital signal. The processor provides a feedback signal according to the first digital signal. The voltage generator adjusts the reference voltage to a second voltage level corresponding to the feedback signal. The sense amplifier removes a direct current (DC) bias voltage from the pixel signal according to the reference signal having the second voltage level.


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