US 11,974,049 B2
Advanced computational pixel imagers with multiple in-pixel counters
Michael W. Kelly, North Reading, MA (US); Curtis Colonero, Shrewsbury, MA (US); Christopher David, Chelmsford, MA (US); and Justin Baker, Andover, MA (US)
Assigned to Anduril Industries, Inc., Costa Mesa, CA (US)
Filed by Anduril Industries, Inc., Costa Mesa, CA (US)
Filed on Dec. 15, 2022, as Appl. No. 18/082,445.
Application 18/082,445 is a continuation of application No. 17/425,744, previously published as PCT/US2020/016599, filed on Feb. 4, 2020.
Claims priority of provisional application 62/807,683, filed on Feb. 19, 2019.
Claims priority of provisional application 62/800,685, filed on Feb. 4, 2019.
Prior Publication US 2023/0123371 A1, Apr. 20, 2023
Int. Cl. H04N 23/741 (2023.01); G06T 3/40 (2006.01); G06T 7/194 (2017.01); G06T 7/60 (2017.01); H04N 23/11 (2023.01); H04N 23/51 (2023.01); H04N 23/56 (2023.01); H04N 23/71 (2023.01); H04N 23/74 (2023.01); H04N 23/957 (2023.01); H04N 25/75 (2023.01); H04N 25/767 (2023.01); H04N 25/772 (2023.01); H01L 27/146 (2006.01)
CPC H04N 23/741 (2023.01) [G06T 3/40 (2013.01); G06T 7/194 (2017.01); G06T 7/60 (2013.01); H04N 23/11 (2023.01); H04N 23/51 (2023.01); H04N 23/56 (2023.01); H04N 23/71 (2023.01); H04N 23/74 (2023.01); H04N 23/957 (2023.01); H04N 25/75 (2023.01); H04N 25/767 (2023.01); H04N 25/772 (2023.01); H01L 27/14681 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A computational pixel imaging system comprising a computational pixel imager having a plurality of pixels, each pixel including:
a detector;
a detector biasing line arranged to apply a bias or supply voltage modulated at a first frequency to the detector;
one or more counters arranged to digitize a signal output from the detector; and
a mixer, wherein an output from the mixer is used to determine a periodicity of count-up and count-down cycles for one or more of the counters.