US 12,112,567 B2
Biometric detection sensor and signal processing method thereof and electronic product
Bruce C. S. Chou, Hsinchu (TW)
Assigned to Egis Technology Inc., Hsinchu (TW)
Filed by Egis Technology Inc., Hsinchu (TW)
Filed on Feb. 28, 2023, as Appl. No. 18/175,574.
Claims priority of provisional application 63/339,983, filed on May 10, 2022.
Claims priority of application No. 202211655295.7 (CN), filed on Dec. 21, 2022.
Prior Publication US 2023/0368565 A1, Nov. 16, 2023
Int. Cl. G06V 40/13 (2022.01); G06F 3/041 (2006.01); G06F 21/32 (2013.01); G06V 40/12 (2022.01)
CPC G06V 40/1306 (2022.01) [G06F 3/041661 (2019.05); G06F 21/32 (2013.01); G06V 40/1365 (2022.01)] 19 Claims
OG exemplary drawing
 
1. A signal processing method for a biometric detection sensor including an array of detection pixels, the signal processing method comprising:
acquiring a first detection signal of each detection pixel in the array of detection pixels;
for each detection pixel of at least part of detection pixels in the array of detection pixels, processing the first detection signal of the detection pixel based on a reference signal to obtain a detection processing signal of the detection pixel, wherein a resolution of the detection processing signal is lower than that of the first detection signal; and
outputting the detection processing signals of the at least part of detection pixels in the array of detection pixels, wherein the detection processing signals are used for biometric identification.