US 11,754,686 B2
Digital pixel
Robert Henderson, Edinburgh (GB); and Hod Finkelstein, Berkeley, CA (US)
Filed by The University Court of The University of Edinburgh, Edinburgh (GB); and Sense Photonics, Inc., Durham, NC (US)
Filed on Nov. 19, 2019, as Appl. No. 16/688,043.
Claims priority of provisional application 62/769,287, filed on Nov. 19, 2018.
Prior Publication US 2020/0158836 A1, May 21, 2020
Int. Cl. G01S 7/4865 (2020.01); G01S 17/89 (2020.01); H01L 31/02 (2006.01); G04F 10/00 (2006.01)
CPC G01S 7/4865 (2013.01) [G01S 17/89 (2013.01); G04F 10/005 (2013.01); H01L 31/02027 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A Light Detection And Ranging (LIDAR) measurement circuit, comprising:
at least one processor circuit configured to perform operations comprising:
receiving detection signals output from a plurality of detector elements in response to a plurality of photons incident thereon during a detection window;
identifying detection events based on the detection signals; and
calculating an estimated time of arrival of the plurality of photons based on a sum of respective numbers of the detection events that have been identified at respective time intervals of the detection window.