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:
Nov. 17, 2020

Filed:

Oct. 03, 2018
Applicants:

Stmicroelectronics (Grenoble 2) Sas, Grenoble, FR;

Stmicroelectronics (Alps) Sas, Grenoble, FR;

Inventors:

Pascal Mellot, Lans en Vercors, FR;

Jean-Jacques Rouger, Grenoble, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 1/42 (2006.01); G01J 1/44 (2006.01); G06F 1/06 (2006.01); G01J 1/18 (2006.01); G01J 1/02 (2006.01);
U.S. Cl.
CPC ...
G01J 1/4204 (2013.01); G01J 1/0228 (2013.01); G01J 1/18 (2013.01); G01J 1/44 (2013.01); G06F 1/06 (2013.01); G01J 2001/446 (2013.01);
Abstract

A method of detecting ambient luminous radiation includes resetting and triggering a counter each time a photodiode illuminated by the ambient luminous radiation reaches a discharge threshold. The counter is then being clocked by a clock signal having a first frequency and delivering a counter output signal. The method further includes generating an AC signal representative of the ambient luminous radiation by converting, from digital to analog, a digital signal obtained from the counter output signal.


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