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Fingerprint anti-counterfeiting method and fingerprint identification device

A fingerprint identification and fingerprint technology, applied in the field of fingerprint identification, can solve the problems of password theft or guessing, and achieve the effect of the best anti-counterfeiting effect.

Inactive Publication Date: 2015-07-22
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these passwords may be stolen or guessed by malicious people

Method used

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  • Fingerprint anti-counterfeiting method and fingerprint identification device
  • Fingerprint anti-counterfeiting method and fingerprint identification device
  • Fingerprint anti-counterfeiting method and fingerprint identification device

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Embodiment Construction

[0046] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, so as to further understand the purpose, solution and effect of the present invention, but it is not intended to limit the protection scope of the appended claims of the present invention.

[0047] figure 2 It is a schematic diagram of a fingerprint identification device according to an embodiment of the present invention. like figure 2 As shown, the fingerprint identification device 200 includes a backlight unit 202 , a fingerprint sensing unit 203 and a photosensitive unit 204 . The backlight unit 202 is used for emitting detection light (or called light) 202-1. In this embodiment, the detection light 202 - 1 is used to generate fingerprint image information of the finger 205 , for example, rather than to detect the authenticity of the finger 205 . The fingerprint sensing unit 203 is disposed adjacent to the bac...

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Abstract

The invention discloses a fingerprint anti-counterfeiting method and a fingerprint identification device. The fingerprint anti-counterfeiting method is suitable for the fingerprint identification device provided with a photosensitive element. The fingerprint anti-counterfeiting method comprises the following steps detecting a variable quantity of transmittance of a finger, judging whether the finger is real according to whether the variable quantity of the transmittance of the finger is in a preset scope, and performing fingerprint induction on the finger when the finger is judged to be real. Through detection of the variable quantity of the transmittance of the finger, and according to the fact that whether the detected variable quantity of the transmittance is in the preset scope, whether is finger is real is judged.

Description

technical field [0001] The present invention relates to a fingerprint identification method, in particular, to a fingerprint identification method suitable for a fingerprint identification device with a photosensitive element and having a fingerprint anti-counterfeiting function. Background technique [0002] Generally speaking, users usually control computer access by setting a set of passwords, allowing online transactions through the Internet, or through home and business access control devices. However, these passcodes may be stolen or guessed by someone with intentions. Since each person's fingerprint is unique, various encryption technologies using fingerprints have been widely used in daily life. [0003] As mentioned above, there are two kinds of common fingerprint sensors: capacitive type and optical type. Figure 1A It is a schematic diagram of a conventional optical fingerprint sensor. like Figure 1A As shown, the optical fingerprint sensor 100 includes a light...

Claims

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Application Information

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IPC IPC(8): G06K9/00
Inventor 黄明益彭健桓刘育荣
Owner AU OPTRONICS CORP
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