Fingerprint identifying module and device

A fingerprint recognition module and fingerprint recognition technology, which is applied in character and pattern recognition, acquisition/organization of fingerprints/palmprints, instruments, etc., can solve problems such as fingerprint sensor abnormalities, avoid latch-up effects and improve service life.

Pending Publication Date: 2017-05-31
SHENZHEN CHIPSAILING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide a fingerprint recognition module and device for the problem that the fingerprint sensor of the traditional fingerprint recognition module is abnormal due to the latch effect.

Method used

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  • Fingerprint identifying module and device
  • Fingerprint identifying module and device

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Embodiment Construction

[0027] 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.

[0028] 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 terminology used herein in the description of the invention is for the purpose of describing specific embodiments only, and is not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the ...

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PUM

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Abstract

The invention relates to a fingerprint identifying module and a device; a grounding protecting unit is grounded and contacts with a user prior to a fingerprint sensor when a user presses the fingerprint sensor, so as to conduct static electricity to the ground. The fingerprint sensor is connected with the controller. An input end of the ESD detecting circuit is connected with the grounding protecting unit, and the output end of the ESD detecting circuit is connected with the controller. The ESD detecting circuit is used for detecting the high-voltage ringing caused by electrostatic discharge through the grounding protecting unit, and applying corresponding protecting measures to the fingerprint sensor. In the fingerprint identifying module and the device, the controller can timely find out the high-voltage ringing through the ESD detecting circuit, and further apply corresponding protective measures to the fingerprint sensor so as to avoid the latch-up effect of the fingerprint senor, and thereby improving the service life of the fingerprint identifying module.

Description

technical field [0001] The invention relates to the technical field of fingerprint identification, in particular to a fingerprint identification module and device. Background technique [0002] Fingerprint recognition uses the fingerprint characteristics of the human body to identify personal identity. Among all biometric technologies, it is currently the most mature and widely used biometric technology. It has been widely used in various electronic devices, such as mobile phones and other smart phones. Terminals, access control security equipment, etc. Based on the imaging principle of the fingerprint identification technology, in order to generate a fingerprint image, the human finger needs to be in full contact with the surface of the fingerprint sensor, which makes the fingerprint sensor vulnerable to electrostatic discharge (ESD, Electro-Static discharge). Especially in an environment where the weather is relatively dry and the humidity is lower than 60%, the phenomeno...

Claims

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Application Information

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IPC IPC(8): G06K9/00H01L27/02
CPCH01L27/0248G06V40/1329G06V40/1306
Inventor 冯健于泽
Owner SHENZHEN CHIPSAILING TECH CO LTD
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