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. 14, 2021
Filed:
Nov. 27, 2019
Raytheon Company, Waltham, MA (US);
Ali E. Zadeh, Sierra Madre, CA (US);
Eric J. Beuville, Goleta, CA (US);
Joshua J. Cantrell, Santa Barbara, CA (US);
RAYTHEON COMPANY, Waltham, MA (US);
Abstract
A digital unit-cell included in an imaging system includes a light sensor configured to generate an electrical charge in response to receiving light, and an energy storage circuit configured to establish a first parasitic capacitance and second large capacitance to store the electrical charge. The digital unit-cell further includes a gain selection circuit and a dual-mode comparator. The gain selection circuit is configured operate in a first mode to invoke the first capacitance and a second mode to invoke the second capacitance. The dual-mode comparator is configured to operate in a first reset mode that generates a first reset signal having a first pulse duration and a second reset mode that generates a second reset signal having a second pulse duration that is a longer than the first pulse duration.