US 12,080,727 B2
Processing circuit and method for time-of-flight image sensor
Ariel Ben Shem, Hasharon (IL)
Assigned to Sony Semiconductor Solutions Corporation, Kanagawa (JP)
Appl. No. 17/436,827
Filed by Sony Semiconductor Solutions Corporation, Kanagawa (JP)
PCT Filed Feb. 26, 2020, PCT No. PCT/JP2020/007881
§ 371(c)(1), (2) Date Sep. 7, 2021,
PCT Pub. No. WO2020/184190, PCT Pub. Date Sep. 17, 2020.
Application 17/436,827 is a continuation of application No. 16/352,074, filed on Mar. 13, 2019.
Prior Publication US 2022/0181365 A1, Jun. 9, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01L 27/146 (2006.01); G01S 7/483 (2006.01); G01S 7/4865 (2020.01); G01S 7/487 (2006.01); G01S 17/10 (2020.01); G01S 17/32 (2020.01); H04N 25/77 (2023.01); G01S 17/18 (2020.01)
CPC H01L 27/14601 (2013.01) [G01S 7/4865 (2013.01); G01S 17/10 (2013.01); G01S 17/32 (2013.01); H04N 25/77 (2023.01); G01S 7/483 (2013.01); G01S 7/487 (2013.01); G01S 17/18 (2020.01); H01L 27/146 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A time-of-flight sensor, comprising:
a pixel array including a plurality of pixel circuits, respective ones of the plurality of pixel circuits including a first tap output configured to output a first tap signal, and a second tap output configured to output a second tap signal; and
a signal processing circuit including a time-of-flight processing circuit configured to perform at least one logical operation on the first tap signal and the second tap signal, and a counter configured to output a digital signal based on an output of the time-of-flight processing circuit.