US 12,262,126 B2
Vision sensor and image processing device including the same
Junseok Kim, Suwon-si (KR); Raeyoung Kim, Suwon-si (KR); Keunjoo Park, Suwon-si (KR); Jaeha Park, Suwon-si (KR); Junhyuk Park, Suwon-si (KR); and Jiwon Im, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Jul. 6, 2023, as Appl. No. 18/218,902.
Claims priority of application No. 10-2022-0121005 (KR), filed on Sep. 23, 2022.
Prior Publication US 2024/0107188 A1, Mar. 28, 2024
Int. Cl. H04N 25/47 (2023.01); H04N 23/45 (2023.01); H04N 25/707 (2023.01); H04N 25/766 (2023.01); H04N 25/77 (2023.01); H04N 25/79 (2023.01)
CPC H04N 25/47 (2023.01) [H04N 25/77 (2023.01)] 20 Claims
OG exemplary drawing
 
1. A pixel of a vision sensor, the pixel comprising:
a photoelectric converter configured to convert an optical signal into a current;
a current-to-voltage converter configured to convert the current into a first voltage;
an amplifier configured to generate an output voltage by amplifying a voltage level of the first voltage;
at least one comparator configured to:
identify whether an event occurs based on comparing the output voltage with at least one threshold voltage, and
generate an event signal based on identifying that the event occurs; and
at least one counter configured to:
receive the event signal from the at least one comparator,
obtain a count value by counting the event signal as information about an amount of change in illumination, and
transmit output data comprising the count value.