US 12,333,849 B2
Method for ultrasonic fingerprint identification, ultrasonic fingerprint apparatus, and electronic device
Ruijie Zou, Shenzhen (CN); and Mingcai Li, Shenzhen (CN)
Assigned to SHENZHEN GOODIX TECHNOLOGY CO., LTD., Shenzhen (CN)
Filed by HUIKE (SINGAPORE) HOLDING PTE.LTD., Singapore (SG)
Filed on Aug. 21, 2024, as Appl. No. 18/810,617.
Application 18/810,617 is a continuation of application No. PCT/CN2023/104795, filed on Jun. 30, 2023.
Claims priority of application No. 202211130195.2 (CN), filed on Sep. 16, 2022.
Prior Publication US 2024/0412554 A1, Dec. 12, 2024
Int. Cl. G06V 40/12 (2022.01); G06F 3/043 (2006.01); G06V 40/13 (2022.01)
CPC G06V 40/1365 (2022.01) [G06F 3/0433 (2013.01); G06V 40/1306 (2022.01)] 11 Claims
OG exemplary drawing
 
1. A method for ultrasonic fingerprint identification, performed by an ultrasonic fingerprint apparatus, wherein the ultrasonic fingerprint apparatus is arranged below a screen of an electronic device to implement under-display ultrasonic fingerprint identification, and the method comprises:
acquiring a correspondence between a plurality of temperatures and a plurality of parameter groups, wherein each of the parameter groups comprises at least one of: a frequency of an ultrasonic signal transmitted to a finger above the screen, a number of collections of an ultrasonic fingerprint signal carrying fingerprint information returned from the finger, and a delay of a collection moment of the ultrasonic fingerprint signal with respect to a transmission moment of the ultrasonic signal;
determining, when the finger presses the screen, a target parameter group among the plurality of parameter groups based on a current first temperature and the correspondence; and
performing fingerprint identification based on parameters in the target parameter group.