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An optical fingerprint serial communication anti-leakage system

A serial communication and anti-leakage technology, which is applied in the direction of instruments, calculations, character and pattern recognition, etc., can solve the problems of induction error, charge accumulation at the input end, false triggering, etc., and achieve the effect of increasing static power consumption and eliminating induction error

Active Publication Date: 2019-01-29
JIANGSU BRMICO ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to prevent false triggering of the optical fingerprint module during use, we have added a touch sensing unit to the fingerprint module. will cause sensing error

Method used

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  • An optical fingerprint serial communication anti-leakage system
  • An optical fingerprint serial communication anti-leakage system
  • An optical fingerprint serial communication anti-leakage system

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Embodiment Construction

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0040] see Figure 1-14 , in a specific embodiment of the present invention, an optical fingerprint serial port communication anti-leakage system is provided, and the optical fingerprint serial port communication anti-leakage system includes: an optical imaging module and a control module, and the communication between the imaging module and the control module control connection,

[0041] Wherein, the imaging module includes a prism and a lens; the control module includes an image sensor unit 1, a processor unit 2, ...

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Abstract

The invention discloses an optical fingerprint serial communication anti-leakage system, an optical imaging module and a control module, and the control connection between the scientific imaging module and the control module, wherein the scientific imaging module includes a prism and a lens; the control module It includes an image sensor unit, a processor unit, a touch sensing unit and a voltage stabilizing circuit unit, the voltage stabilizing circuit unit is electrically connected to the image sensor unit, the processor unit, and the touch sensing unit, and the processor unit is connected to the image The sensor unit and the touch sensing unit are connected. Through the above method, the optical fingerprint serial port communication anti-leakage system provided by the present invention proposes a serial port communication anti-leakage method. When the fingerprint module communicates with other peripherals, if there is leakage current in the serial port of the peripheral after the power is turned off, Then the current will flow into the fingerprint module, increasing the static power consumption and eliminating the sensing error caused by the continuous accumulation of charge at the input terminal of the touch chip.

Description

technical field [0001] The invention relates to a control system of an optical fingerprint module in the fingerprint application field, in particular to an optical fingerprint serial communication anti-leakage system. Background technique [0002] Compared with capacitive, pressure, temperature sensitive and other contact fingerprint sensors, optical fingerprint sensors have the advantages of long service life, beautiful appearance and high cost performance, and are widely used in fingerprint locks, fingerprint access control and other fields. [0003] In order to prevent false triggering of the optical fingerprint module during use, we have added a touch sensing unit to the fingerprint module. cause sensing errors. Contents of the invention [0004] The main technical problem to be solved by the present invention is how to provide a serial communication anti-leakage method, and an optical fingerprint serial communication anti-leakage system that eliminates the induction ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00
CPCG06V40/1324
Inventor 周斌张飞飞卢孟
Owner JIANGSU BRMICO ELECTRONICS
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