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:
Feb. 17, 2009
Filed:
Feb. 17, 2004
David J. Gulbransen, Santa Barbara, CA (US);
Alan W. Hoffman, Goleta, CA (US);
John T. Caulfield, Santa Barbara, CA (US);
David J. Gulbransen, Santa Barbara, CA (US);
Alan W. Hoffman, Goleta, CA (US);
John T. Caulfield, Santa Barbara, CA (US);
Raytheon Company, Waltham, MA (US);
Abstract
Disclosed is a High Dynamic Range Dual Mode (HDR-DM) input circuit unit cell () for use with an infrared (IR) radiation detector (D). The readout circuit unit cell includes a plurality of transistors (M, M, Mand M), switches (S, Sand S), and capacitances (C, Cand C) that are controllably coupled together to form, in a first mode of operation below an illumination level threshold, a CTIA input circuit (), and to form, in a second mode of operation above the illumination level threshold, a lower gain SFD input circuit ().