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:
Jan. 22, 2013
Filed:
Dec. 30, 2008
Takahiro Onakado, Tokyo, JP;
Masashi Ueno, Tokyo, JP;
Takahiro Onakado, Tokyo, JP;
Masashi Ueno, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A thermal infrared imaging device includes a diode, a power supply for supplying a constant power supply voltage to an anode of the diode through a first interconnection, a voltage setting circuit for setting a voltage across the diode, and a current read circuit which is connected to a cathode of the diode through a second interconnection and the voltage setting circuit, for reading a current of the diode. The voltage setting circuit controls a voltage of a connection point of the second interconnection and the voltage setting circuit to a voltage obtained by subtracting a voltage drop from a predetermined bias voltage. The voltage drop is generated by resistances of the first and second interconnections, and the diode current.