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:
Sep. 11, 2007
Filed:
May. 31, 2005
John F. Brady, Iii, Richardson, TX (US);
Stephen D. Gaalema, Colorado Springs, CO (US);
John F. Brady, III, Richardson, TX (US);
Stephen D. Gaalema, Colorado Springs, CO (US);
L-3 Communications Corporation, New York, NY (US);
Abstract
An integrating capacitor circuit for an integrating amplifier and related methods are disclosed that allow for efficient detection of currents or charges, particularly those produced by pixel cells in a detector image array. By placing a capacitor-connected field-effect-transistor (FET) in parallel with an integration capacitor and setting its gate voltage to a selected voltage level, the current or charge from the detector depletes the charge on the gate of the FET capacitor while integrating on the capacitor. In addition, the gate voltage level can be adjusted to modify the current depleting characteristics of the capacitor-connected FET. The resulting operation of this integrating circuitry provides significant resulting advantages for the integrating amplifier.