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:
Jun. 12, 2018

Filed:

Sep. 21, 2016
Applicant:

Stmicroelectronics (Grenoble 2) Sas, Grenoble, FR;

Inventor:

Gregory Roffet, Coublevie, FR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/355 (2011.01); G01J 1/42 (2006.01); H04N 5/235 (2006.01); H04N 5/3745 (2011.01);
U.S. Cl.
CPC ...
H04N 5/35581 (2013.01); G01J 1/4228 (2013.01); H04N 5/2357 (2013.01); H04N 5/35554 (2013.01); H04N 5/37452 (2013.01); H04N 5/37457 (2013.01);
Abstract

An image sensor including: a plurality of pixels each including a photodiode coupled to first and second capacitive elements by first and second transistors; a control circuit provided to acquire, for each pixel, a first and second value V_S and V_M representative of illumination levels of the photodiode during the first second periods, the first period being divided into a plurality of first sub-periods and the second period being divided into a plurality of second sub-periods, the first and second sub-periods sub-periods being interlaced; and a sum circuit capable of calculating, for each pixel, a value V_MS=C_S*V_S+C_M*V_M, C_S et C_M being first and second coefficients such that values C_S*V_S and C_M*V_M are substantially equal when the illumination of the photodiode is continuous.


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