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Fingerprint touch control identification module, fingerprint touch control identification method and electronic equipment

A recognition method and fingerprint recognition technology, applied in character and pattern recognition, instruments, computer components, etc., can solve problems such as increase in capacitance C, decrease in capacitance voltage, and decrease in emission efficiency, and achieve the effect of improving stability

Active Publication Date: 2021-09-03
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Abstract
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Problems solved by technology

[0002] As fingerprint touch recognition modules are more and more widely used in electronic products, the existing fingerprint touch recognition modules are difficult to meet the driving requirements of large-area fingerprint touch recognition modules
like figure 1 The ultrasonic transmitting circuit provided in , in the prior art, the ultrasonic transmitting circuit adopts a resonant circuit. If the area of ​​the fingerprint touch recognition module increases too much, the capacitance C will increase, and at the same time, the capacitor voltage will continue to drop, and the emission Reduced efficiency

Method used

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  • Fingerprint touch control identification module, fingerprint touch control identification method and electronic equipment
  • Fingerprint touch control identification module, fingerprint touch control identification method and electronic equipment
  • Fingerprint touch control identification module, fingerprint touch control identification method and electronic equipment

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[0040] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and implementation examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0041] "One embodiment", "preferred embodiment", "embodiment" or "multiple embodiments" mentioned in this specification means that the specific features, structures, characteristics or functions described in conjunction with the embodiments are included in the present invention In at least one embodiment and may be in more than one embodiment. The appearances of the phrases "in one embodiment," "in an embodiment," or "in multiple embodiments" in various places in this specification are not necessarily all referring to the same embodiment or the same multiple embodiments.

[0042] ...

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Abstract

The invention relates to the technical field of ultrasonic fingerprint identification, and comprises a fingerprint touch control identification module and a fingerprint touch control identification method; the fingerprint touch control identification module can start a corresponding fingerprint touch control identification area based on a finger touch position to carry out fingerprint detection and obtain data after the finger touch position is detected, thus further processing based on the obtained data to obtain a corresponding fingerprint image. On the basis of the plurality of fingerprint touch control identification areas which are arranged in a partitioned manner, large-area fingerprint identification signals can be realized without additionally configuring other detection modules, and the capacitance value accessed into a circuit each time can be in a resonance range, so that the voltage stability in fingerprint identification is ensured, and the emission efficiency is improved. The invention further provides electronic equipment which can meet the requirements of miniaturization and large-area ultrasonic fingerprint identification.

Description

【Technical field】 [0001] The invention relates to the technical field of ultrasonic fingerprint identification, in particular to a fingerprint touch identification module, a fingerprint touch identification method, and electronic equipment. 【Background technique】 [0002] As fingerprint touch recognition modules are more and more widely used in electronic products, it is difficult for existing fingerprint touch recognition modules to meet the driving requirements of large-area fingerprint touch recognition modules. Such as figure 1 The ultrasonic transmitting circuit provided in , in the prior art, the ultrasonic transmitting circuit adopts a resonant circuit. If the area of ​​the fingerprint touch recognition module increases too much, the capacitance C will increase, and at the same time, the capacitor voltage will continue to drop, and the emission Reduced efficiency. Therefore, there is an urgent need to provide a novel fingerprint touch recognition module structure th...

Claims

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Application Information

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IPC IPC(8): G06K9/00
Inventor 张千胡潇然向勇彭晓丽薛卫东
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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