Fingerprint identification method adapted for multiple fingerprint sensors and module thereof

A technology of fingerprint identification module and fingerprint sensor, which is applied in the direction of character and pattern recognition, instruments, computer components, etc., to achieve the effect of convenient use, convenient connection and small size
CN1595422AInactive Publication Date: 2005-03-16CHANGCHUN HONGDA OPTOELECTRONICS & BIOSTATISTICS IDENTIFICATION TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHANGCHUN HONGDA OPTOELECTRONICS & BIOSTATISTICS IDENTIFICATION TECH
Publication Date
2005-03-16
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to the fingerprint identification method and its module suitable for many fingerprint sensors. Connect the optical sensor or the pressure sensor to the sensor interface of the fingerprint identification module with two software interfaces reserved. Through the simple connection between the user board interface and the fingerprint identification module interface, different sensors can be chosen arbitrarily according to the sensor setting command transmitted from the user board to assist the fingerprint identification module. By this means, the problem of only a single fingerprint optical sensor can be chosen by the fingerprint module is resolved. The invention can be also connected the computer to implement the demonstration of the functions of the fingerprint identification module through the management software. The whole module possesses the advantages of small volume, easy connection, large fingerprint memory, high comparison speed and so on. It can be applied to the small-sized fingerprint verification machine, and it is a good choice to secondarily develop the fingerprint products.
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Description

Technical field:

[0001] The invention discloses a fingerprint identification method applicable to various fingerprint sensors and provides a corresponding identification module, which relates to the technical field of fingerprint identification. Background technique:

[0002] Most of the current fingerprint identification field is a fingerprint product or fingerprint module that can only be connected to a traditional optical sensor. Because the optical sensor collects the image through the contact of the finger with the surface of the prism and undergoes optical refraction processing, when the finger is very dry or very When it is wet, the collected fingerprint images will not be able to be clearly identified and identified. In this way, the requirements for the fingerprints of users who use fingerprint products are very strict, so there are unsuitable groups of people, and the users of fingerprint products are restricted, which is not conducive to the development and promot...

Claims

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