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Ultrasonic biometric device, preparation method and electronic device thereof

A biometric and ultrasonic technology, applied in the field of ultrasonic recognition, can solve the problem of inaccurate recognition function, achieve the effect of accurate recognition function and avoid interference

Inactive Publication Date: 2019-03-19
NANCHANG OUFEI BIOLOGICAL IDENTIFICATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current ultrasonic biometric devices have the problem that the recognition function is not accurate enough

Method used

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  • Ultrasonic biometric device, preparation method and electronic device thereof
  • Ultrasonic biometric device, preparation method and electronic device thereof
  • Ultrasonic biometric device, preparation method and electronic device thereof

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Embodiment Construction

[0033] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.

[0035] Such as figure 1 As shown, an electronic device according to an embodiment, ...

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Abstract

The invention relates to an ultrasonic biometric device, a preparation method and an electronic device thereof. The ultrasonic biometric device comprises an ultrasonic sensing assembly and a conductive foam layer. An ultrasonic sensor assembly capable of emitting ultrasonic waves and receiving reflected waves of the ultrasonic waves, the ultrasonic sensor having a detection area for detecting an object to be detected; an electrically conductive foam layer is laminated on the ultrasonic sensing module and exposes the detection area. The electrically conductive foam layer can absorb ultrasonic waves not emitted from the ultrasonic sensing module to the detection area. The ultrasonic biometric device is more accurate.

Description

technical field [0001] The invention relates to the technical field of ultrasonic identification, in particular to an ultrasonic biometric identification device, a preparation method thereof, and electronic equipment. Background technique [0002] Ultrasonic fingerprint recognition technology can scan fingerprints through ultrasonic waves. Compared with traditional fingerprint recognition methods, ultrasonic fingerprint recognition can analyze fingerprints more deeply. Even if there is dirt on the surface of the finger, it will not hinder ultrasonic sampling, and can even penetrate The unique 3D features of fingerprints are identified beneath the surface of the skin. Even when there is water or sweat on the hands, it can still be accurately identified. However, the current ultrasonic biometric identification device has the problem that the identification function is not accurate enough. Contents of the invention [0003] Based on this, it is necessary to provide an ultra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00H01L27/20H10N39/00
CPCG06V40/1306H10N39/00
Inventor 郭宏伟
Owner NANCHANG OUFEI BIOLOGICAL IDENTIFICATION TECH