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. 30, 2008
Kenton T. Veeder, Burlington, MA (US);
Kenton T. Veeder, Burlington, MA (US);
Raytheon Company, Waltham, MA (US);
Abstract
A readout circuit for reading from addressable nodes comprises first and second half-circuits of a differential amplifier. The first half-circuit comprises at least one source follower transistor adapted to receive an input signal from one of the addressable nodes, such as pixel readouts of an imaging system. The first half-circuit further comprises a row selector switch coupled to the source follower transistor to selectively activate the source follower transistor to receive the input signal. The second half-circuit comprises an output node for providing an output signal of a readout of a selected addressable node. The second half-circuit further comprises a source leader transistor coupled to the output node to provide a feedback signal based on the readout. A feedback loop is connected to the source leader transistor to provide feedback from the output node for utilization in a differential amplification of the input signal.