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:
Nov. 24, 2020
Filed:
Feb. 07, 2017
Mitsubishi Electric Corporation, Chiyoda-ku, JP;
Tomohiro Maegawa, Chiyoda-ku, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
An infrared imaging element includes a photosensitive pixel array and a driving line for each photosensitive pixel. The infrared imaging element includes a vertical scanning circuit, a signal line, a bias line, a differential integration circuit that time-integrates a difference between a voltage across the first constant current source and a voltage across the second constant current source; a horizontal scanning circuit; a reference pixel array that outputs a reference signal changing in accordance with a change in a temperature of photosensitive pixels; a bias generating circuit that generates a bias voltage for applying the bias voltage to the bias line, the bias voltage corresponding to a difference between a reference voltage and a differential signal between the reference signal and a voltage on the bias line; and a voltage generating circuit that generates a temperature signal generation voltage based on the bias voltage.