US 11,722,792 B2
Image sensing device
Jae Hyung Jang, Icheon-si (KR)
Assigned to SK hynix Inc., Icheon-si (KR)
Filed by SK hynix Inc., Icheon-si (KR)
Filed on Mar. 24, 2022, as Appl. No. 17/703,114.
Claims priority of application No. 10-2021-0046975 (KR), filed on Apr. 12, 2021.
Prior Publication US 2022/0329744 A1, Oct. 13, 2022
Int. Cl. H04N 25/50 (2023.01); H04N 25/71 (2023.01); G06T 7/70 (2017.01)
CPC H04N 25/50 (2023.01) [G06T 7/70 (2017.01); H04N 25/71 (2023.01)] 20 Claims
OG exemplary drawing
 
1. An image sensing device comprising:
a pixel array comprising a first pixel group and a second pixel group, each of the first pixel group and the second pixel group including pixels each configured to sense a distance to a target object in response to modulated light that is incident on the pixel array;
a first modulation driver communicatively coupled to the pixel array and configured to supply, to the first pixel group, a first modulation control signal and a second modulation control signal; and
a second modulation driver communicatively coupled to the pixel array and configured to supply, to the second pixel group, a third modulation control signal and a fourth modulation control signal,
wherein the first and second modulation drivers are independently controlled from each other such that at least one of the first modulation control signal, the second modulation control signal, the third modulation control signal, or the fourth modulation control signal has a phase difference from the modulated light.