US 12,455,380 B2
3D sensing system
Min-Chian Wu, Tainan (TW); Pen-Hsin Chen, Tainan (TW); Ching-Wen Wang, Tainan (TW); Cheng-Che Tsai, Tainan (TW); and Ting-Sheng Hsu, Tainan (TW)
Assigned to HIMAX TECHNOLOGIES LIMITED, Tainan (TW)
Filed by HIMAX TECHNOLOGIES LIMITED, Tainan (TW)
Filed on Apr. 18, 2022, as Appl. No. 17/723,388.
Prior Publication US 2023/0333251 A1, Oct. 19, 2023
Int. Cl. G01S 17/89 (2020.01); G01S 7/481 (2006.01)
CPC G01S 17/89 (2013.01) [G01S 7/4815 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A 3D sensing system, comprising:
a first sensing device, comprising a first light source configurated to provide at least one first emitting light and a first sensor configurated to receive a first sensing signal based on a first sensing timing;
a second sensing device, comprising a second light source configurated to provide at least one first emitting light and a second sensor configurated to receive a second sensing signal based on a second sensing timing, wherein each of the first light source and the second light source comprises at least one light emitting diode or at least one laser diode; and
a controller, coupled to the first sensing device and the second sensing device, configurated to receive the second sensing signal and adjust at least one of the first sensing timing and the second sensing timing according to an interference result of the second sensing signal by the first sensing device,
wherein when the interference result indicates that the second sensing signal is interfered by the first sensing device, the controller is configured to adjust the second sensing timing to not overlap with the first sensing timing in an adjusting period,
wherein in the adjusting period, the controller is configured to delay the first sensing timing based on a first delay time length and delay the second sensing timing based on a second delay time length different from the first delay time length.