Title:
ULTRASONIC FINGERPRINT RECOGNITION METHOD, ULTRASONIC FINGERPRINT APPARATUS, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/055711
Kind Code:
A1
Abstract:
The present application provides an ultrasonic fingerprint recognition method, an ultrasonic fingerprint apparatus, and an electronic device, which can reduce the impact of temperatures on ultrasonic fingerprint recognition. The method is executed by the ultrasonic fingerprint apparatus. The ultrasonic fingerprint apparatus is arranged below a screen of the electronic device to realize under-display ultrasonic fingerprint recognition. The method comprises: acquiring correspondences between a plurality of temperatures and a plurality of parameter groups, wherein each parameter group comprises at least one of the following parameters: the frequency of an ultrasonic signal emitted to a finger, the number of times an ultrasonic fingerprint signal returned by the finger is acquired, and the delay of an acquisition window for the ultrasonic fingerprint signal relative to an emission moment for the ultrasonic signal; determining a target parameter group among the plurality of parameter groups on the basis of a first temperature and the correspondences; and performing fingerprint recognition at the first temperature according to parameters in the target parameter group.
Inventors:
ZOU RUIJIE (CN)
LI MINGCAI (CN)
LI MINGCAI (CN)
Application Number:
PCT/CN2023/104795
Publication Date:
March 21, 2024
Filing Date:
June 30, 2023
Export Citation:
Assignee:
SHENZHEN GOODIX TECH CO LTD (CN)
International Classes:
G06V40/12
Domestic Patent References:
| WO2021203337A1 | 2021-10-14 |
Foreign References:
| CN115311695A | 2022-11-08 | |||
| CN109492472A | 2019-03-19 | |||
| CN106203301A | 2016-12-07 | |||
| US20200410193A1 | 2020-12-31 |
Attorney, Agent or Firm:
LONGSUN LEAD IP LTD. (CN)
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