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:
Oct. 21, 2019
Fujitsu Limited, Kawasaki, JP;
Yasuo Matsumiya, Hadano, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A control circuit for infrared detectors, includes: a driving circuit configured to drive a plurality of infrared detectors and generates, for each frame, a signal according to infrared rays incident on the plurality of infrared detectors; a holding circuit configured to hold a first signal generated by the driving circuit in a first frame and a second signal generated by the driving circuit in a second frame before the first frame; a difference calculation circuit configured to calculate a difference between the first signal and the second signal; and an amplifier circuit configured to amplify and output the difference calculated by the difference calculation circuit.