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:
Dec. 20, 2011
Filed:
Jun. 17, 2009
James T. Woolaway, Santa Barbara, CA (US);
Naseem Y. Aziz, Goleta, CA (US);
James T. Woolaway, Santa Barbara, CA (US);
Naseem Y. Aziz, Goleta, CA (US);
Flir Systems, Inc., Wilsonville, OR (US);
Abstract
A microbolometer circuit includes, in accordance with an embodiment, a first microbolometer and a bias circuit, coupled to the first microbolometer, configured to provide a bias current to the first microbolometer to provide a first output signal based on a resistance of the first microbolometer. An output circuit, coupled to the bias circuit and the first microbolometer, is configured to provide an output signal based on the first output signal, wherein the bias circuit or the output circuit or both are configured to provide a varying signal level to compensate the first output signal for a change in the resistance of the first microbolometer due to the bias current increasing a temperature of the first microbolometer.