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.
Patent No.:
Date of Patent:
May. 03, 2022
Filed:
Jun. 28, 2019
Applicant:
Fujitsu Limited, Kawasaki, JP;
Inventor:
Yasuo Matsumiya, Hadano, JP;
Assignee:
FUJITSU LIMITED, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/355 (2011.01); G01J 5/22 (2006.01); G01J 1/44 (2006.01); H04N 5/33 (2006.01); H04N 5/376 (2011.01); H04N 5/353 (2011.01);
U.S. Cl.
CPC ...
H04N 5/355 (2013.01); G01J 1/44 (2013.01); G01J 5/22 (2013.01); H04N 5/33 (2013.01); H04N 5/3535 (2013.01); H04N 5/35527 (2013.01); H04N 5/35563 (2013.01); H04N 5/376 (2013.01); G01J 2001/4406 (2013.01);
Abstract
A control method of an infrared detector, for obtaining a wider dynamic range and preventing an over-range, is disclosed. The method includes: monitoring a value acquired in response to an electric current flowing in each of a plurality of infrared detection elements configuring the infrared detector, and lowering, when the value acquired in response to the electric current flowing in the infrared detection element reaches a threshold value within a detection time, sensitivity of the infrared detection element within the detection time.